Witam! Posiadam DL-RS1A wraz z czujnikiem odległości serii GT2 firmy KEYENCE. Chciałbym sczytać wartość odległości używając do tego sterownika SIEMENS S7-1200. Problem pojawia się w trakcie konfigurowania bloku odpowiedzialnego za komunikację z modułem DL-RS1A. Próbowałem go konfigurować już na wiele sposobów, jednak mimo tego nadal nie mogę odczytać wartości. Instrukcja do tego czujnika i modułu jest w załączniku. Na dodatek otrzymuję błąd nr 8180 czyli "Invalid value for the port ID". Chciałbym prosić o pomoc w rozwiązaniu tego problemu. http://obrazki.elektroda.pl/3338744300_1339937249.jpg
96009E
High-accuracy Digital Contact Sensor
GT2-70 Series
User's Manual
Read this manual before use.
Keep this manual in a safe place for future reference.
Introduction
This manual describes the basic operations and hardware functions of the GT2-70 Series.
Read the manual carefully to ensure safe performance and function of the GT2-70 Series.
Keep this manual in a safe place for future reference.
Ensure that the end user of this product receives this manual.
■ Symbols
The following symbols alert you to matters concerning the prevention of injury and
product damage.
DANGER
WARNING
Failure to follow the instructions may lead to death or serious
injury.
Failure to follow the instructions may lead to injury.
Failure to follow the instructions may lead to product damage
CAUTION or failure of the product.
Note
Reference
Provides additional information on proper operations.
Provides advanced and useful information for operation.
Safety Information for GT2-70 Series
General Precautions
• At startup and during operation, be sure to monitor the functions and performance
of the GT2-70 Series.
• Do not attempt to open or modify the GT2-70 Series or use it in any way other than
as described in the specifications. If the GT2-70 Series is modified or used other
than as described, the warranty will be voided.
• When the GT2-70 Series is used in combination with other devices, its function and
performance may be degraded, depending on the operating conditions and
surrounding environment.
• When the GT2-70 Series is used in combination with other instruments, function performance
may be degraded, depending on operating conditions and the surrounding environment. Use
the GT2-70 Series after fully studying the effect of combined use with other instruments.
• To aid in preventing malfunction, do not expose the GT2-70 Series to extreme
temperature fluctuations.
Handling Abnormalities
Turn off the power immediately in the following cases. Using the
unit in an abnormal condition could cause fire, or electric shock.
• If liquid including water, chemicals or debris enters the unit.
WARNING
• If the unit is dropped or the case is damaged.
• If smoke or unpleasant odor is present.
Precautions for Usage
• Apply the correct power voltage. Failure to do so may
cause fire, electric shock, or malfunction.
• Do not attempt to open or modify the GT2-70 Series.
Doing so may cause fire or electric shock.
• Do not use this product for the purpose to protect a
WARNING
human body or a part of human body.
• This product is not intended for use as explosion-proof
product. Do not use this product in a hazardous location
and/or potentially explosive atmosphere.
CAUTION
GT2-70-M-E
• Be sure to turn the power off when you plug/unplug the
cable that leads to the unit and its accessories.
• Do not turn off the power while setting items.
Otherwise, the data being set or all the data may be lost.
96009E
1
Safety Precautions
Installation environment
To use the GT2-70 Series correctly and safely, avoid installing it in the following
locations; doing so may lead to breakdown of the unit.
• Location that is humid, dusty or poorly ventilated
• Location with a high surrounding air temperature such as a place exposed to direct sunlight
• Location where there are flammable or corrosive gases
• Location where the unit may be directly subjected to vibration or shock
• Location where water, oil or chemicals may splash onto the unit
• Location where static electricity is present
Corrective action for electromagnetic noise
Do not install the GT2-70 Series near a power source or high-voltage cable,
otherwise electromagnetic noise may cause the GT2-70 Series to malfunction. Take
corrective action for electromagnetic noise by using noise filters, laying cables
separately, and/or installing insulation on the amplifier and the sensor head.
Effects of surrounding air temperature
To use the GT2-70 Series with high accuracy, do not use the GT2-70 Series
environments in which the surrounding air temperature changes sharply.
It will take about 40 minutes on the 12 mm type, and 60 minutes on the 32 mm/50 mm
type for the internal temperature distribution of the equipment to be completely
adjusted when the surrounding air temperature has changed by 10°C.
Warming up
The circuit is not stable immediately after the power turns ON, which sometimes causes
the indicated value to gradually fluctuate.
Wait about 5 minutes when using the GT2-H12K(L)/A12K(L) and about 10 minutes when
using the GT2-H32(L)/H50/A32/A50 after the power turns on before starting operation.
Handling of the sensor head
• The GT2-70 Series and peripheral devices are precision machines. Do not drop, or
cause any other impact to these devices. Doing so may cause damage or malfunction.
• Do not apply force greater than what is listed below to the spindle. Do not apply
rotational torque. Otherwise the spindle may break.
• Although the sensor head (GT2-H12/H12K/H32/H50/A12/A12K/A32/A50) has a
waterproof structure, avoid using in water or in the place where liquid such as
water and oil may come into contact with the sensor head. (GT2-H12L/H12KL/
H32L/A12L/A12KL is not waterproof.)
30N
2
100N
1N
GT2-70-M-E
Safety Information for GT2-70 Series
GT2-A12(L)/A12K(L)/A32/A50
• The GT2 air push model uses a single-acting cylinder. The internal spring will
return the cylinder to its home position when air pressure is removed. DO NOT
supply air to the exhaust valve.
• The air cylinder cannot be removed.
• Use the regulator to supply the stable air pressure to the sensor head.
• Use the air filter and mist separators to supply dry air.
• The coupling socket and the exhaust valve that are supplied with the air cylinder
are dedicated for this product. They cannot be removed.
Other Precautions
Power supply
• Noise superimposed on the power supply may cause malfunction. Be sure to use
the DC stabilized power supply with an insulation transformer.
• In the case of a commercially available switching regulator, be sure to ground the
frame ground terminal or the ground terminal.
Effects of vibration
Vibrating the target may cause fluctuation in the indicated value. In this case, extend
the response time. This ensures more accurate detection values.
About dust protective boot
When the dust boot of the sensor head is damaged, use the optional dust boot sold
separately (GT2-H12/H12K/A12/A12K: OP-84332, GT2-H32/A32: OP-84459, GT2-H50/
A50: OP-84460)*.
Please note that we cannot guarantee the IP67 enclosure rating when the optional part is
used. If you need a guarantee for the IP67 enclosure rating, replace the sensor head
itself.
* Do not use the dust boot on GT2-H12L/H12KL/H32L/A12L/A12KL.
GT2-70-M-E
3
Safety Information for GT2-70 Series
To maintain an IP67 enclosure rating for GT2-A12/A12K/A32/A50
To maintain an IP67 enclosure rating for GT2-A12/A12K/A32/A50, the following must
be satisfied:
• Firmly connect tubing with φ2.5 mm inner diameter to the exhaust port until it
bottoms out.
Ensure that the tube end is free of dirt or water.
Air tube
Exhaust valve
Screw
Air tube
• Tighten the screw of the exhaust valve with a torque of 0.5 to 0.6 N•m. If the screw
is loose, the IP67 rating cannot be guaranteed.
Precautions on Regulations and Standards
CE Marking
Keyence Corporation has confirmed that this product complies with the essential requirements
of the applicable EC Directive, based on the following specification. Be sure to consider the
following specification when using this product in the Member State of European Union.
● EMC Directive (2004/108/EC)
• Applicable standard EMI: EN61326-1, Class A
EMS: EN61326-1
Remarks: This specification does not give any guarantee that the end-product with this product
incorporated complies with the essential requirements of EMC Directive. The manufacturer of the endproduct is solely responsible for the compliance on the end-product itself according to EMC Directive.
UL Certificate
The Amplifiers are UL Recognized products.
• UL File No. E120439 (Category: NRNT2/NRNT8)
Be sure to consider the following specifications when using these products as an UL
recognized products.
• Use the power supply with Class 2 output defined in NFPA70 (NEC: National Electrical Code).
• GT2 series are evaluated as open type devices. These products can not be a part of an enclosure.
4
GT2-70-M-E
Contents
Introduction
Safety information for GT2-70 Series.........................................................1
General precautions ............................................................................... 1
Handling Abnormalities .......................................................................... 1
Precautions for Usage ............................................................................ 1
Other Precautions ................................................................................... 3
Precautions on Regulations and Standards ........................................... 4
Contents ...................................................................................................5
Chapter 1 Before Use
1-1 Checking the Package Contents ................................................. 1-2
Sensor Amplifier ................................................................................... 1-2
Sensor Head ........................................................................................ 1-4
Sensor Head Connection Cable .......................................................... 1-6
List of Optional Parts ............................................................................ 1-7
1-2 Identifying Part Names and Functions ......................................... 1-9
Sensor Amplifier Unit ........................................................................... 1-9
Sensor Head Unit ............................................................................... 1-11
Sensor Head Connection Cable ........................................................ 1-13
Chapter 2 Installation and Connection
2-1 Mounting and Wiring the Sensor Amplifier .................................. 2-2
Mounting the Sensor Amplifier ............................................................. 2-2
Sensor Amplifier Wiring ....................................................................... 2-9
2-2 Connecting and Mounting the Sensor Head ............................. 2-13
Mounting the Sensor Head ................................................................ 2-13
Connecting the sensor head connection cable ................................. 2-22
Connecting the Amplifier ................................................................... 2-23
Installing the Head Cable Connector (OP-84338) ............................. 2-25
Chapter 3 Basic Usage of the GT2-70 Series
3-1 Main Screens ............................................................................... 3-2
Display Patterns of the Main Screens .................................................. 3-2
3-2 Origin Alignment ........................................................................ 3-11
Adjusting the Origin Directly from the Sensor ................................... 3-11
GT2-70-M-E
5
Contents
Origin Alignment by External Input .................................................... 3-13
3-3 Setting the Tolerances ............................................................... 3-14
Setting the Tolerances Manually ........................................................ 3-15
Setting Up the Tolerances Automatically ........................................... 3-16
Displaying the Detection Result ......................................................... 3-20
3-4 Setting the HH/LL Criterion Value .............................................. 3-21
Setting HH/LL Criterion Value Manually ............................................. 3-22
Setting HH/LL Criterion Value Automatically ..................................... 3-23
Displaying the Detection Result ......................................................... 3-26
3-5 Analog Output Function ............................................................. 3-27
Analog Output .................................................................................... 3-27
Free Range Analog Setting ................................................................ 3-28
3-6 Useful Functions ......................................................................... 3-30
Preset Function (Displaying a value by Adding or Subtracting a Desired Value) 3-30
Bank Function (Registering Multiple Criterion Values and Preset Values) . 3-31
Reset Input (Resetting Internal Values) ............................................. 3-34
Hysteresis .......................................................................................... 3-36
Initialization (Initial Reset) .................................................................. 3-37
Switching the Display Unit (mm/inch) ................................................ 3-38
Key Lock ............................................................................................ 3-39
Copy Function .................................................................................... 3-40
Chapter 4 Using Detection Modes
4-1 Judging with the Current Value .................................................... 4-2
Holding the Desired Value ................................................................... 4-2
4-2 Judging after the Detection Value is Stabilized ........................... 4-4
(1) Judging after a Certain Period of Time Has Passed (Delay Timer) .. 4-4
(2) Automatically Detecting the End of the Fluctuation ....................... 4-7
4-3 Judging by the Maximum Value (Peak Hold) ............................. 4-10
(1) Specifying the Sampling Period from External Input .................... 4-10
(2) Using without the Timing Input ..................................................... 4-15
4-4 Judging by the Minimum Value (Bottom Hold) .......................... 4-19
(1) Specifying the Sampling Period from External Input .................... 4-19
(2) Using without the Timing Input ..................................................... 4-24
4-5 Judging with the Difference between Maximum and Minimum Values 4-28
Specifying the Sampling Period from External Input ......................... 4-28
4-6 Holding HIGH/LOW Output ........................................................ 4-32
6
GT2-70-M-E
Contents
Timing Chart in the NG Hold Detection Mode ................................... 4-32
Chapter 5 Setting Various Functions
5-1 Detection Functions ..................................................................... 5-2
List of Setting Modes ........................................................................... 5-2
Parameter Setting List .......................................................................... 5-2
5-2 Function Setting Mode ................................................................. 5-6
Entering Function Setting Mode .......................................................... 5-6
Exiting Function Setting Mode ............................................................. 5-6
01. Detection Mode .............................................................................. 5-7
02. Hold Update Method ...................................................................... 5-8
03. Response Time ............................................................................... 5-9
04. Timing Type .................................................................................. 5-11
05. Self-timing Level ........................................................................... 5-12
06. Self Timing Delay Types ............................................................... 5-13
07. User-specified Delay Time ........................................................... 5-14
08. Static Hold Delay Stability............................................................. 5-15
09. Static Hold Delay Stability Width .................................................. 5-16
5-3 Basic Setting Mode .................................................................... 5-17
Entering Basic Setting Mode ............................................................. 5-17
Exiting Basic Setting Mode ................................................................ 5-17
10. Measurement Direction................................................................. 5-18
11. Multiplier ....................................................................................... 5-19
12. Output Mode................................................................................. 5-20
13. Displayed Number of Digits.......................................................... 5-21
14. Hysteresis ..................................................................................... 5-22
15. Batch Input Settings ..................................................................... 5-24
16. Special Output Setting.................................................................. 5-26
Limit Output HH Side Teaching .......................................................... 5-33
17. Limit Output HH Side Criterion Position Setting............................ 5-34
Limit Output LL Side Teaching ........................................................... 5-35
18. Limit Output LL Side Criterion Position Setting............................. 5-36
16. Analog Range Setting................................................................... 5-37
17. Free Range Settings (Hi) .............................................................. 5-38
18. Free Range Settings (Lo).............................................................. 5-39
5-4 Additional Function Setting Mode .............................................. 5-40
Entering Additional Function Setting Mode ....................................... 5-40
Exiting Additional Function Setting Mode .......................................... 5-40
20. Select Preset Data ........................................................................ 5-41
GT2-70-M-E
7
Contents
21. Store Preset Value ........................................................................ 5-42
22. Preset Point................................................................................... 5-43
23. Power Save Function .................................................................... 5-44
24. Jam Detection Function ................................................................ 5-45
Jam Detection Teaching..................................................................... 5-49
25. Jam Detection Checkpoint Setting ............................................... 5-50
5-5 Calibration Setting Mode ............................................................ 5-51
Entering Calibration Setting Mode ..................................................... 5-51
Exiting Calibration Setting Mode ....................................................... 5-51
30. Calibration Function Setting.......................................................... 5-52
1st Detection/Capture......................................................................... 5-53
31. 2nd Target Setting ........................................................................ 5-54
2nd Detection/Capture ....................................................................... 5-55
5-6 Calculation Setting Mode ........................................................... 5-57
Calculation Setting Mode.................................................................... 5-57
Applications ....................................................................................... 5-58
Precautions for Calculation Setting .................................................... 5-61
C1. Max. Value.................................................................................... 5-65
C2. Min. Value..................................................................................... 5-66
C3. Degree of flatness ........................................................................ 5-67
C4. Average........................................................................................ 5-68
C5. Reference Difference ................................................................... 5-69
C6. Twist ............................................................................................. 5-70
C7. Warpage....................................................................................... 5-72
C8. Thickness ..................................................................................... 5-74
Chapter 6 Functions and Settings of GT2-71D
6-1 GT2-71D (pulse output type) ....................................................... 6-2
Names of parts of the amplifier ............................................................ 6-2
Output signal ....................................................................................... 6-2
6-2 Pulse output settings .................................................................... 6-3
Advanced setting switch ..................................................................... 6-3
6-3 Outputting Current Position Information ....................................... 6-5
Current position notification output function ........................................ 6-5
8
GT2-70-M-E
Contents
Chapter 7 Specifications
7-1 Specifications .............................................................................. 7-2
Sensor Head ........................................................................................ 7-2
Sensor Amplifier ................................................................................... 7-4
Status Table ......................................................................................... 7-6
Power On Reset Time .......................................................................... 7-7
7-2 I/O Diagram ................................................................................. 7-8
I/O Diagram ......................................................................................... 7-8
Analog output circuit diagram ............................................................. 7-9
External Input Circuit Diagram ........................................................... 7-10
7-3 Pulse Output Type Circuit Diagram ........................................... 7-11
I/O circuit diagram ............................................................................. 7-11
External input circuit diagram ............................................................ 7-11
Recommended input device ............................................................. 7-11
7-4 Timing Chart .............................................................................. 7-12
Standard Detection ............................................................................ 7-12
Peak Hold, Bottom Hold, Peak-to-Peak ............................................. 7-12
NG Hold ............................................................................................. 7-12
Preset Input ........................................................................................ 7-13
Bank Input .......................................................................................... 7-13
Reset Input ......................................................................................... 7-14
Minimum Input Time .......................................................................... 7-14
7-5 Dimensions ................................................................................ 7-16
Sensor Amplifier ................................................................................. 7-16
Sensor Head ...................................................................................... 7-18
Mounting Bracket A, C Mounting Hole Diagram ............................... 7-24
Mounting Bracket D Mounting Hole Diagram .................................... 7-24
Appendix
A1
A2
A3
A4
A5
A6
Troubleshooting .......................................................................... A-2
Error Messages ........................................................................... A-5
Replacing the Contact ................................................................ A-8
Replacing the Dust Boot ........................................................... A-10
How to Mount the Lift Lever ...................................................... A-14
Index ......................................................................................... A-16
GT2-70-M-E
9
Contents
MEMO
10
GT2-70-M-E
Before Use
This chapter describes the package contents of the GT2-70 Series
and the name and function of each part.
1-1
1
Checking the Package Contents.............................. 1-2
1-2
1
Identifying Part Names and Functions ..................... 1-9
GT2-70-M-E
1-1
1-1
Checking the Package Contents
Before using the unit, make sure that the following equipment and accessories are
included in the package.
1
Sensor Amplifier
Before Use
DIN-rail mount type
GT2-71N/71P/71CN/71CP (Main unit)
GT2-71MCN/71MCP (Main unit analog output )
Sensor amplifier x 1
Instruction Manual x 1
Head connector label x 1
(Used in the calculation dedicated mode)
GT2-72N/72P/72CN/72CP (Expansion unit)
Sensor amplifier x 1
GT2-71D (Pulse output)
Sensor amplifier x 1
Instruction Manual x 1
Switch cover label x 1
Amplifier connection cable
Use for quick disconnect type amplifiers (GT2-71CN/71CP/72CN/72CP/71MCN/
71MCP).
GT2-CA2M/CA10M
1-2
GT2-70-M-E
1-1 Checking the Package Contents
Panel mount type
GT2-75N/75P (main unit)
1
Panel mounting
bracket x 1
Power cable (2 m) x 1 Head connector label x 1
(12 cores)
(Used in the calculation
dedicated mode)
Before Use
Sensor amplifier x 1
Front protection
cover x 1
Instruction Manual x 1
GT2-76N/76P (expansion unit)
Sensor amplifier x 1
I/O cable (2 m) x 1
(10 cores)
GT2-70-M-E
Panel mounting
bracket x 1
Front protection
cover x 1
Expansion cable
(50 mm) x 1
1-3
1-1 Checking the Package Contents
Sensor Head
1
GT2-H12
Before Use
Sensor head x 1
Precautions for usage x 1
GT2-H12K(High accuracy type)
Sensor head x 1
Precautions for usage x 1
GT2-H32
Sensor head x 1
Precautions on Handling x 1
GT2-H12L(Low stress type)
Sensor head x 1
Precautions for usage x 1
GT2-H12KL(High accuracy type/
low stress type)
Sensor head x 1
Precautions for usage x 1
GT2-H32L(Low stress type)
Sensor head x 1
Precautions on Handling x 1
GT2-H50
Sensor head x 1
Precautions on Handling x 1
1-4
GT2-70-M-E
1-1 Checking the Package Contents
GT2-A12(Air cylinder type)
GT2-A12L(Air cylinder, low
stress type)
1
GT2-A12K(Air cylinder, high
accuracy type)
Sensor head x 1
Precautions on Handling x 1
Sensor head x 1
Precautions on Handling x 1
Before Use
Sensor head x 1
Precautions on Handling x 1
GT2-A12KL(Air cylinder, high
accuracy, low stress type)
Sensor head x 1
Precautions on Handling x 1
GT2-A32(Air cylinder type)
Sensor head x 1
Precautions on Handling x 1
GT2-A50(Air cylinder type)
Sensor head x 1
Precautions on Handling x 1
GT2-70-M-E
1-5
1-1 Checking the Package Contents
Sensor Head Connection Cable
1
GT2-CH2M/5M/10M/20M
(M8 straight connector)
GT2-CHL2M/5M/10M/20M
(M8 L-shaped connector)
Before Use
Note
The M8 L-shaped
connector type cable
cannot be used with the
GT2-H32(L)/H50/A32/A50.
We have thoroughly inspected the package contents before shipment. However, in
the event of defective or broken items, contact your nearest KEYENCE office.
1-6
GT2-70-M-E
1-1 Checking the Package Contents
List of Optional Parts
1
Model: OP-76875
Model: OP-84396
GT2-H12(L)/H12K(L)/
A12(L)/A12K(L)
Mounting bracket B
Before Use
Model: OP-76874
GT2-H12(L)/H12K(L)/A12(L)/
A12K(L)
Mounting bracket A
(Key wrench supplied)
GT2-H12(L)/H12K(L)/
A12(L)/A12K(L)
Mounting bracket C
(Key wrench supplied)
Model: OP-84327
Model: OP-76877
Model: OP-84394
Panel mounting bracket
(Included with panel-mountable
amplifier units)
GT2-H32(L)/H50/A32/A50
Mounting bracket D
(Key wrench supplied)
For DIN rail type amplifier
Mounting bracket
Model: OP-77678
Model: OP-77679
Model: OP-26751
Standard contact
(Key wrench supplied)
Included with the GT2-H12(L)/
H32(L)/H50/A12(L)/A32/A50
as standard equipment.
Flat plate contact
(Key wrench supplied)
A flat type contact with
the surface roughness of 1 µm.
End unit (two pieces)
Model: OP-77680
Roller contact
(Key wrench supplied)
A contact with the roller
eccentricity of 10 µm.
Model: OP-93332
High accuracy roller contact
(Key wrench supplied)
A contact with the roller
eccentricity of 5 µm.
Model: OP-77681
Needle contact
(Key wrench supplied)
Carbide (tungsten alloy)
is used at the tip.
Model: OP-77682
Carbide contact
(Key wrench supplied)
Included with the GT2-H12K(L)/
A12K(L) as standard equipment.
Carbide (tungsten alloy) is used at the tip.
GT2-70-M-E
Model: OP-77683
Offset contact
(Key wrench supplied)
Used to detect multiple
small targets.
Model: OP-80228
Fluorine resin contact
(Key wrench supplied)
A contact that uses
fluorine resin.
1-7
1-1 Checking the Package Contents
1
Model: OP-81970
Before Use
Ceramic contact
(Key wrench supplied)
A ceramic ball is used
at the tip.
Model: OP-84460
Dust boot for GT2-H50/A50
(Key wrench supplied)
Included with (mounted on)
the sensor head.
Model: OP-84338
Connector for GT2 (two pieces)
Replacement connector for the
sensor head connection cable
1-8
Model: OP-84332
Dust boot for GT2-H12/H12K/
A12/A12K
(Key wrench supplied)
Included with (mounted on)
the sensor head.
Model: OP-84459
Dust boot for GT2-H32/A32
(Key wrench supplied)
Included with (mounted on)
the sensor head.
Model: OP-77684
Spacer
(Key wrench supplied)
Used to extend the spindle
for 12.2 mm.
Model: OP-35361
Expansion cable: 300 mm
Used when connecting the
panel mount type amplifiers
side by side.
Model: OP-84397
Lift lever
(Key wrench supplied)
Model: OP-82133
Speed controller for
GT2-A12(L)/A12K(L)/A32/A50
Adjusts the spindle extension speed
when using the air cylinder type head.
GT2-70-M-E
1-2
Identifying Part Names and Functions
Sensor Amplifier Unit
Note
1
" Chapter 6 Functions and
DIN rail mount amplifier unit (GT2-71(C)N/71(C)P, GT2-72(C)N/72(C)P, GT2-71MCN/71MCP)
Expansion unit connector*1
Amplifier control unit cover
Sensor head connector
Expansion unit
connector*2
Amplifier display /
operation section
*1 When shipped from the factory, the expansion cover is installed.
*2 This is not installed on the main unit (GT2-71(C)N/71(C)P/71MCN/71MCP).
Panel mounting amplifier unit (GT2-75N/75P, GT2-76N/76P)
Sensor head connector
Amplifier display /
operation section
Power supply (I/O)
cable connector
Expansion unit
connector (upper)*
Expansion unit
connector (lower)
* The main unit (GT2-75N/75P) has no upper expansion unit connector.
GT2-70-M-E
1-9
Before Use
For GT2-71D (pulse output type), refer to
Settings of GT2-71D " .
1-2 Identifying Part Names and Functions
Amplifier display/control unit
(1)
(13)
(12)
(11)
1
(2)
Before Use
(3)
Item
(1) Digital LED display
(2) Position indicator
(3) [PRESET] button
(4) Bank indicator
Normal
display
mode *1
(5) Bar LED
OK/NG
display
mode *1
(6) Preset indicator
(7) Timing input indicator
(8) PV indicator
(9) [SET] button
(10) [MODE] button
(11) Arrow buttons
(12) Special output indicator *3
1-10
(4)
(5)
(6) (7) (8)(9)
(10)
Description
Displays the detected values and setting.
Indicates HI/GO/LO positions.
When an error occurs, HI and LO light at the same time.
Used when adjusting the origin.
The indicator of the bank No. being selected lights in green.
When all bank indicators are turned off, " Bank 0 " is selected.
Lights the LEDs according to the increase/decrease of the
measured values.
Indicates (lights in green) the position of the setting data of
HIGH/LOW by the HIGH/LOW position indicator.
• If the measured value is " GO " , all the LEDs are lit in green.
• When in a criterion wait state*2, all the LEDs turn off.
• If the measured value is " HIGH (or LOW) " , all the LEDs are
lit in red.
• Lights in green for 0.3 seconds when the preset signal is
entered.
• Lights in red when the preset value is displayed (set).
• When " 04. Timing type " of the function setting mode is set to
" t-in " , this lights in green while the timing signal is entered.
• When using the internal timing, this lights in green since the
data is determined until the data exceeds (falls below) the
timing level.
Lights in red when the P.V. value display screen is displayed.
Used to automatically adjust the set point.
Used for starting or ending the adjustment when adjusting
the settings.
This is used also when switching*1 the display mode of the
bar LED.
Menu selection
• Left/right arrow button: Used to select the menu.
• Up/down arrow button: Used to change the contents of the
menu.
Lights in red when judged as HH/LL if the option other than
" no. USE " is selected for " 16. Special Output Setting " in the
basic setting mode.
GT2-70-M-E
1-2 Identifying Part Names and Functions
Item
(13) Status indicator
*1 Briefly pushing the [MODE] button on the P.V. value display screen will switch the bar
LED display mode.
Press the
[MODE] button
Normal display mode
OK/NG display mode
*2 The criterion wait state refers to the following cases:
· During the sampling period when using the internal timing
· When " ------ " is displayed in the P.V. value display screen
*3 This item is not used on the GT2-71MCN/71MCP.
Sensor Head Unit
GT2-H12(L)/H12K(L)/H32(L)/H50/A12(L)/A12K(L)/A32/A50
(8)
(2)
(1)
(2)
(1)
(3)
(5)
(5)
(4)
During normal
operations*1
GT2-70-M-E
(7)
(9)
(6)
Item
(1) Head
indicator
(2)
(1)
(8)
(1)
(2)
(6)
(5)
(4)
(7)
(4)
(6)
(5)
(4)
(3)
(5)
(4)
(9)
(6)
(5)
(4)
Description
When judged as HIGH/LOW
: Lights red
When judged as GO
: Lights green
In a criterion wait state*2
: Turns off
Blinks red or green*3
When setting power
Turns off*4
save function
When an error occurs Lights red
During setting
1-11
1
Before Use
Description
When the hold mode is selected for " 01. Detection mode " in
the function setting mode, the indicator corresponding to the
selected hold mode lights in red when the P.V. value display
screen is displayed.
If the calculation function is used when the expansion unit is
added, CALC lights in red when the P.V. value display screen
or the calculated value display screen is displayed.
" 3-1 Main Screens " (page 3-2)
1-2 Identifying Part Names and Functions
Item
(2) Sensor head connection cable
connector
1
(3) Dust
boot*5
Before Use
(4) Contact
(5) Spindle
(6) Mounting fastener
(7) Air cylinder
(8) Coupling socket
(9) Exhaust valve
Description
Connects to the sensor head connection cable.
Ensures an IP67 enclosure rating
When shipped from the factory, the standard type
(OP-77678) is supplied for the GT2-H12(L)/H32(L)/
H50/A12(L)/A32/A50 and the carbide type (OP77682) is supplied for the GT2-H12K(L)/A12K(L).
Various types of contacts are available for different
applications.
" List of Optional Parts " (page 1-7)
" A3 Replacing the Contact " (page A-8)
Displays the amount of movement of the spindle as
the detection value.
Use this part to mount the sensor head to a fixture.
If the sensor head is fixed at other places than the
mounting fastener, the GT2-70 Series unit may be
damaged.
This air cylinder is a single-acting push type*6.
Supplying air extends the spindle.
This is the socket used to supply air to the air
cylinder. Connect an air tube with an inside diameter
of 2.5 mm and an outside diameter of 4 mm.
This is the exhaust valve*7 that causes the air cylinder
to push out. In order to guarantee the IP67 enclosure
rating, connect an air tube with an inside diameter of
2.5 mm and an outside diameter of 4 mm, and place
the edge of the tube in a location that will not come
into contact with dust or water.
*1 When " CALc (calculation mode) " is selected for " A1. APL (calculation mode settings) " ,
the expansion unit operates in the same way as the main unit.
*2 The criterion wait state refers to the following cases:
· During the sampling period when using the internal timing
· When " ------ " is displayed in the P.V. value display screen
*3 The blinking color changes according to the lighting color of the normal operation.
(The indicator blinks in red in a criterion wait state.)
*4 Turns off only when " All (Full eco) " is selected in " 23. Eco (Power Save Function) " .
" 23. Power Save Function " (page 5-44)
*5 The dust boot can be replaced, but the IP67 enclosure rating cannot be guaranteed
after replacement.
If you need the IP67 enclosure rating to be guaranteed, replace the sensor head.
" A4 Replacing the Dust Boot " (page A-10)
*6 Vent air exhaust to the atmosphere.
*7 The air cylinder returns to the previous position by a spring in the air cylinder, so do
not supply air to the exhaust valve.
1-12
GT2-70-M-E
1-2 Identifying Part Names and Functions
Note
The GT2-H12L/H12KL/H32L/A12L/A12KL does not have the dust boot. The
protection rating is equivalent to " IP40 " .
Do not install the dust boot to the GT2-H12L/H12KL/H32L/A12L/A12KL. It can
hinder the return movement of the spindle.
Before Use
Sensor Head Connection Cable
GT2-CH (L) 2M/5M/10M/20M
GT2-CH
GT2-CHL
(2)
(1)
(2)
(1)
Item
(1) Amplifier connector
Description
Connects to the amplifier.
(2) Sensor head connector
Connects to the sensor head.
The relationship between the model of the sensor head connector and the cable
length is as follows.
Model
GT2-CH2M/GT2-CHL2M
2m
GT2-CH5M/GT2-CHL5M
5m
GT2-CH10M/GT2-CHL10M
10 m
GT2-CH20M/GT2-CHL20M
20 m
GT2-70-M-E
1
Cable length
1-13
1-2 Identifying Part Names and Functions
MEMO
1
Before Use
1-14
GT2-70-M-E
Installation and Connection
2
This chapter describes precautions when installing and
connecting the GT2-70 Series.
2-1
Mounting and Wiring the Sensor Amplifier .............. 2-2
2-2
2
Connecting and Mounting the Sensor Head .......... 2-13
GT2-70-M-E
2-1
2-1
Mounting and Wiring the Sensor Amplifier
Mounting the Sensor Amplifier
DIN-rail mount type (Main unit)
2
This section describes how to mount the DIN-rail mount type:
(Main unit: GT2-71(C)N/71(C)P/71MCN/71MCP/71D).
Installation and Connection
1
Fit the tab of the lower part of the main unit to the DIN rail. While inserting
the main unit in the direction of Arrow (1), push the body down in the
direction of Arrow (2).
(3)
(2)
(1)
2
To detach the amplifier, while pushing the main unit in the direction of
Arrow (1), pull the body up in the direction of Arrow (3).
When using the mounting bracket OP-76877, mount as shown below.
Mounting bracket: OP-76877
2-2
GT2-70-M-E
2-1 Mounting and Wiring the Sensor Amplifier
DIN-rail mount type (Expansion unit)
This section describes how to mount the DIN-rail mount type:
(Expansion unit: GT2-72(C)N/72(C)P).
The expansion unit can only be used in addition to the main unit.
Up to 14 expansion units can be added to one main unit.
Note
• When connecting expansion units, some of the specifications are
restricted depending on the number of units to be connected. For
" Chapter 7 Specifications " (page 7-1).
details, refer to
• An expansion unit of different output type cannot be added (for
example, an expansion unit with an NPN output cannot be added to
a main unit with an PNP output).
• No expansion unit can be connected to the pulse output type (GT2-71D).
• An expansion unit with an DIN-rail mount type cannot be added to a
main unit with an panel mount type.
• When the expansion units to be connected include the GT(A) Series, the
number of expansion units that can be connected will be limited to 9.
1
Detach the expansion cover of the amplifier (main unit).
Main unit
Expansion cover
2
Mount the expansion unit to be added to the DIN rail.
Refer to " DIN-rail mount type (Main unit) " for details about mounting.
GT2-70-M-E
2-3
2
Installation and Connection
CAUTION
• When adding an amplifier (expansion unit), be sure the power
of both main and expansion units is OFF before operation.
Working with the power ON may damage the units.
• Be sure to completely connect an expansion unit to a main
unit. Improper connections may damage the equipment.
2-1 Mounting and Wiring the Sensor Amplifier
3
Push and fix the expansion unit to the connector of the main unit until it
clicks.
Main unit
Expansion unit
2
Installation and Connection
Connector
4
Mount the separately sold end units (OP-26751: a set of two pieces) on
both sides of the amplifiers (the main unit and the expansion unit), then
fix the end units with screws on the upper part of each end unit (2 points x
2 units).
The mounting method of the end unit is the same as that of the amplifier.
End unit
End unit
2-4
GT2-70-M-E
2-1 Mounting and Wiring the Sensor Amplifier
Panel mount type (Main unit)
This section describes how to mount the panel mount type: GT2-75N/75P (main unit).
1
Cut panel openings based on the dimensions below.
• Panel cutout when mounting the unit vertically
2
45
Installation and Connection
Panel thickness of mounting area
1 to 6 mm
X
X = 24 x (No. of amplifiers -1) + 21
(Unit: mm)
• Panel cutout when mounting the unit horizontally
21
+0.4
-0
Min. 69.5
45
(Unit: mm)
Note
When mounting the units side by side, ensure the center pitch
between the sensor amplifiers is 69.5 mm or more.
2
Insert the panel mounting bracket in the direction shown below into the main
unit from the back, then fit the front protection cover to the main unit face.
Front protection cover
Amplifier
Panel
Panel mounting bracket
To detach the panel mounting bracket, pull it while pushing apart the tabs
provided on its both ends.
Tab
GT2-70-M-E
2-5
2-1 Mounting and Wiring the Sensor Amplifier
Panel mount type (Expansion unit)
This section describes how to mount the panel mount type: GT2-76N/76P (expansion unit).
The expansion unit can only be used in addition to the main unit. Up to 14 expansion
units can be added to one main unit.
2
Installation and Connection
CAUTION
• Turn OFF the power before connecting the expansion
cable. Inserting or pulling the cable when the power is
turned ON may damage the equipment.
• Be sure to completely connect the expansion cable.
Improper connections may damage the equipment.
Note
• When connecting expansion units, some of the specifications are
restricted depending on the number of units to be connected. For details,
refer to
" Chapter 7 Specifications " (page 7-1).
• An expansion unit of different output type cannot be added (for
example, an expansion unit with an NPN output cannot be added to
a main unit with an PNP output).
• An expansion unit of the panel mount type cannot be added to a main
unit of the DIN rail mount type.
• When the expansion units to be connected include the GT Series, the
number of expansion units that can be connected will be limited to 9.
1
Cut panel openings for mounting according to the number of expansion
units to be mounted (n).
• Panel cutout when mounting the expansion unit vertically
45
Panel thickness of mounting area
1 to 6 mm
X
X = 24 x (No. of amplifiers -1) + 21
(Unit: mm)
• Panel cutout when mounting the expansion unit horizontally
21
+0.4
-0
Min. 69.5
45
2-6
(Unit: mm)
GT2-70-M-E
2-1 Mounting and Wiring the Sensor Amplifier
2
Mount the amplifier to the panel.
Mount the units in such a manner that the main unit is placed on the top.
Main unit
2
Expansion unit 1
.
.
.
Refer to
" Panel mount type (Main unit) " (page 2-5) for details about how to
mount the amplifier.
3
Connect the amplifiers with an expansion cable (50 mm flat cable).
Connect the expansion cable between the adjacent connectors.
Main unit
Expansion unit connector
(lower)
Expansion cable
Expansion
unit 1
Expansion
unit 2
GT2-70-M-E
Expansion unit connector
(upper)
2-7
Installation and Connection
Expansion unit 2
2-1 Mounting and Wiring the Sensor Amplifier
Be sure to connect the expansion cable when the
power is turned OFF. Improper connections may
damage the GT2-70 Series.
Connecting or disconnecting the cable when the
power is turned ON also may damage the GT2-70
Series.
2
Installation and Connection
Expansion cable
CAUTION
Note
• Do not connect between " the expansion connector (upper) expansion connector (upper) " or " the expansion connector
(lower) - expansion connector (lower) "
• When mounting the amplifiers side by side, a separately sold
300 mm expansion cable (OP-35361) is required. When even
one 300 mm expansion cable is used, limit the number of the
expansion units to four.
2-8
GT2-70-M-E
2-1 Mounting and Wiring the Sensor Amplifier
Sensor Amplifier Wiring
Note
Insulate the unused I/O lines individually.
2
Installation and Connection
DIN-rail mount type
■ GT2-71(C)N/71(C)P (Main unit)
Brown
Blue
Black
White
Gray
Orange
Green
Pink
Violet
Pink/Violet
Yellow
Red
10-30 VDC *
HIGH output
LOW output
GO output
HH output
LL output
PRESET input
BANK A input
TIMING input
BANK B input
RESET input
* When an expansion unit is added, supply 20-30 VDC.
■ GT2-72(C)N/72(C)P (Expansion unit)
Brown
Blue
Black
White
Gray
Orange
Green
Pink
Violet
Pink/Violet
Yellow
Red
Not connected *
Not connected *
HIGH output
LOW output
GO output
HH output
LL output
PRESET input
BANK A input
TIMING input
BANK B input
RESET input
* Brown and blue lines are available only on the GT2-72CN/72CP (connector type).
GT2-70-M-E
2-9
2-1 Mounting and Wiring the Sensor Amplifier
■ GT2-71MCN/71MCP (Analog output)
Brown
Blue
Black
White
Gray
Orange
Green
Pink
Violet
Pink/Violet
2
Installation and Connection
Yellow
Red
DC 20-30 V
HIGH output
LOW output
GO output
Analog output
Analog GND
PRESET input
BANK A input
TIMING input
BANK B input
RESET input
■ GT2-71D (Pulse output)
Brown
Blue
Black
White
Orange
Violet
Gray
Green
Pink
2-10
DC 10-30 V
A phase
B phase
Z phase
A phase
B phase
Z phase
Current position request input
GT2-70-M-E
2-1 Mounting and Wiring the Sensor Amplifier
DIN-rail mounting connector type
■ Connecting the power cable (I/O cable)
Quick disconnect type amplifiers must be connected with the power cable (I/O cable)
GT2-CA2M/CA10M (sold separately).
Installation and Connection
click
Connect the cables with
the white points aligned
Connecting the power cable
Disconnecting the power cable
Panel mount type
■ Connecting the power cable (I/O cable)
The accessory power cable (I/O cable) must be connected to the amplifier of the
panel mount type.
Click
Power cable
Connecting the power cable
Disconnecting the power cable
Note
• The number of power cable wires is different between the main unit
and the expansion unit (Main unit: 12 wires, Expansion unit: 10 wires).
• The power of the expansion unit is supplied through the expansion
cable being connected to the main unit.
GT2-70-M-E
2
2-11
2-1 Mounting and Wiring the Sensor Amplifier
■ GT2-75N/75P (Main unit)
Brown
Blue
Black
White
Gray
Orange
Green
Pink
Violet
Pink/Violet
Yellow
Red
2
10-30 VDC *
HIGH output
LOW output
GO output
Installation and Connection
HH output
LL output
PRESET input
BANK A input
TIMING input
BANK B input
RESET input
* When an expansion unit is added, supply 20-30 VDC.
■ GT2-76N/76P (Expansion unit)
Black
White
Gray
Orange
Green
Pink
Violet
Pink/Violet
Yellow
Red
HIGH output
LOW output
GO output
HH output
LL output
PRESET input
BANK A input
TIMING input
BANK B input
RESET input
* The power is supplied to the expansion unit from the connected main unit.
2-12
GT2-70-M-E
2-2
Connecting and Mounting the Sensor Head
Mounting the Sensor Head
Mounting directly to a jig
Before mounting the sensor head directly to a jig, create a hole on the jig. Attach the
sensor head using mounting bracket A (OP-76874), mounting bracket D (OP-84327),
or mounting bracket C (OP-84396).
2
.
Package contents of the mounting
bracket A (OP-76874)
Tightening sleeve
Package contents of the mounting
bracket C (OP-84396)
Tightening sleeve
Nut
Wrench
Nut
Wrench
● GT2-H32(L)/H50/A32/A50
Package contents of the mounting
bracket D (OP-84327)
Tightening sleeve
Nut
Wrench
Note
When mounting the GT2-H32L facing upward, be sure
to use the mounting holes on the side of the sensor
head. If the sensor head is mounted using mounting
bracket D, the spindle may not fully extend.
GT2-70-M-E
2-13
Installation and Connection
● GT2-H12(L)/H12K(L)/A12(L)/A12K(L)
Mounting
diagram
2-2 Connecting and Mounting the Sensor Head
1
Drill a mounting hole according to the illustration below.
GT2-H12(L)/H12K(L)/A12(L)/A12K(L)
°
1
45°±
2
Installation and Connection
φ10
G8
*
027 )
+0. 5
( +0.00
Tightening
sleeve
inserting
side
1
0.5 to 1.0*2
A
Nut mounting
side
5.5 to 11.3*2
φ0.025 A
(Unit: mm)
GT2-H32(L)/H50/A32/A50
1°
45°±
0.5 to 1.0*2
A
Tightening
sleeve
inserting
side
.1 6
+00.00
+
4
φ1
φ0.025 A
Nut mounting
side
5.5 to 11.3*2
(Unit: mm)
*1 For mounting bracket C
φ10 +0.1
+0.005
2
*2 Processing accuracy: ±0.05
Insert the tightening sleeve into the hole (from the chamfered side), and
loosely tighten with the nut.
Tightening sleeve
Chamfered side
Nut
Note
Strongly tightening the nut without the sensor head inserted
may deform the tightening sleeve.
2-14
GT2-70-M-E
2-2 Connecting and Mounting the Sensor Head
3
Insert the sensor head into the tightening sleeve. While securing the tightening
sleeve with the included wrench, tighten the nut with a separate wrench.
Wrench or similar tool
2
Dust boot
Tightening the nut while fixing the sensor head may lead to
CAUTION damage.
Note
• Never apply tightening torque over 10 N·m (the
recommended tightening torque is 5 to 7 N·m) to mounting
bracket A (OP-76874) and mounting bracket C (OP-84396).
Apply tightening torque between 15 and 18 N•m (20 to 23 N•m
when using the GT2-A32/A50) to mounting bracket D
(OP-84327). Use the wrench that matches the nut width.
• Care must be taken not to damage the dust boot when tightening.
4
Rotate the dust boot so that the side line is straight.
Check with the spindle pushed in.
Note
• If the dust boot is not straight, it becomes easier to damage
when the spindle is moved.
• GT2-H12L/H12KL/H32L/A12L/A12KL has no dust boot.
GT2-70-M-E
2-15
Installation and Connection
Wrench
2-2 Connecting and Mounting the Sensor Head
Mounting on the side of a table (GT2-H12/H12K/A12/A12K)
To mount GT2-H12(L)/H12K(L)/A12(L)/A12K(L) on the side face of a table or
something similar, use the included mounting bracket B (OP-76875).
Mounting diagram
Package contents of the
mounting bracket B (OP-76875)
2
Installation and Connection
Tightening sleeve
1
Nut
Mounting bracket
Insert the tightening sleeve into the mounting bracket from the slotted
side, and loosely tighten with the nut.
Tightening sleeve
Mounting bracket
Nut
Proper tightening sleeve alignment
Note
• If the tightening sleeve is inserted from the wrong side, the
sensor head cannot be secured.
• Strongly tightening the nut without the sensor head inserted
may deform the tightening sleeve.
• Mounting bracket C (OP-84396) and mounting bracket D
(OP-84327) cannot be used together with the side mounting
bracket (OP-76875).
2
Insert the sensor head into the tightening sleeve, and tighten the nut with a wrench.
Wrench
Nut
(10 N·m max)
Dust boot
2-16
GT2-70-M-E
2-2 Connecting and Mounting the Sensor Head
Tightening the nut while fixing the sensor head may lead to
CAUTION damage.
Note
• Never apply tightening torque over 10 N·m (The
recommended tightening torque is 5 to 7 N·m).
Use the wrench that fits the width of the nut.
• Care must be taken not to damage the dust boot when
tightening.
Installation and Connection
3
2
Secure the sensor head with M4 screws.
Mount the sensor head with the model label on top.
M4 screw
Note
• Never apply tightening torque over 1.4 N·m.
• Care must be taken not to damage the dust boot when
tightening.
• Install the sensor head with the model label facing up. The
sensor head cannot be installed in another orientation.
4
Rotate the dust boot so that the side line is straight.
Check with the spindle pushed in.
GT2-70-M-E
2-17
2-2 Connecting and Mounting the Sensor Head
Note
• If the dust boot is not straight, it becomes easier to damage
when the spindle is moved.
• GT2-H12L/H12KL/A12L/A12KL has no dust boot.
Mounting to the mounting holes (GT2-H32/H50/A32/A50)
Installation and Connection
The mounting holes on the side of the GT2-H32(L)/H50/A32/A50 unit can be used to
install to the side of a table or other surface.
M4 screws
23± 0.15 mm
2
M4 tap
Note
• Roughness of the mounting surface may cause the sensor to tilt,
and sufficient accuracy may not be obtained. When performing a
high-accuracy measurement, use a jig to mount the sensor head.
" Mounting directly to a jig " (page 2-13)
• Apply tightening torque between 1.2 and 1.5 N·m.
Installing the Air Tube (GT2-A12(L)/A12K(L)/A32/A50)
■ Available air tubes
The following tubing is recommended for all GT2-A12(L)/A12K(L)/A32/A50 air push
models:
Item
Recommended tubing material
Tubing size
2-18
Description
Nylon, Urethane
Outer diameter
φ4 mm
Inner diameter
φ2.5 mm
GT2-70-M-E
2-2 Connecting and Mounting the Sensor Head
■ How to attach/detach the air tube
● Attaching the air tube
Feed the tubing into the socket until it bottoms out (about 1/2 " ).
The socket will ensure a tight seal around the tubing.
2
Air tube
Note
• For best results, cut the end of the tube at a right angle, ensure
that the outer perimeter is not damaged, and that it still maintains a
circular cross section.
• If the tube is not properly inserted, air leakage may result (see
figure below).
Tube end
• After attachment, pull on the tube to make sure it is secure.
● Detaching the air tube
To detach the air tube, (1) press down on the release ring, (2) pull out the tube.
(2)
(1)
GT2-70-M-E
Release ring
2-19
Installation and Connection
Coupling socket
2-2 Connecting and Mounting the Sensor Head
Note
• Before detaching the tube, be sure to stop any air flow.
• Press down on the release ring evenly from both sides, and pull
the tube out. Uneven pressure may result in damage to the tube or
damage to the operation of the air cylinder.
2
Installation and Connection
■ If the IP67 enclosure rating is required
To maintain an IP67 enclosure rating for GT2-A12/A12K/A32/A50, the following must
be satisfied:
• Firmly connect tubing with φ2.5 mm inner diameter to the exhaust port until it
bottoms out.
Ensure that the tube end is free of dirt or water.
Air tube
Exhaust valve
Screw
Air tube
• Tighten the screw of the exhaust valve with a torque of 0.5 to 0.6 N•m. If the screw
is loose, the IP67 rating cannot be guaranteed.
Reference
2-20
By loosening the screw of the exhaust valve, you can change the exhaust
port angle.
GT2-70-M-E
2-2 Connecting and Mounting the Sensor Head
■ Adjustment of Spindle Movement Speed
To adjust the spindle movement speed, install the optional speed controller
(OP-82133) between the cylinder and the air supply.
Air supply
2
Indication symbol
Within 0.5 m
recommended
Adjusting the speed.
Note
• To ensure proper operation, install the speed controller within 0.5
m of the cylinder.
• Install the speed controller (OP-82133) in the direction indicated by
the above figure. The speed controller will not operate if installed
in the reverse direction.
GT2-70-M-E
2-21
Installation and Connection
Speed controller
(OP-82133)
2-2 Connecting and Mounting the Sensor Head
Connecting the sensor head connection cable
Note
Only the straight connector sensor connection cable (GT2-CH*M)
can be used with GT2-H32(L)/H50/A32/A50. The M8 L-shaped
connector (GT2-CHL*M) cannot be used.
2
Installation and Connection
1
Insert the sensor head connection cable into the cable connector of the
sensor head.
Arrow
2
Secure the connector with the screws of the sensor head connection
cable.
Note
When connecting the connector, be sure to insert it without tilt,
and tighten it securely. (Recommended tightening torque: 0.4
to 0.5 N·m*)
If the connection is not tight enough, the connector may be
loosened by vibration or other causes, leading to a connection
failure.
(* After tightening it strongly by hand, use pliers or other tools
to rotate it about 30o for further tightening.)
• To disconnect the sensor head connection cable, reverse the steps above.
2-22
GT2-70-M-E
2-2 Connecting and Mounting the Sensor Head
Connecting the Amplifier
DIN-rail mount type
1
Remove the lock cover of the connector of the sensor head connection
cable, and insert the sensor head connection cable into the connector on
the side of the amplifier until it clicks.
Installation and Connection
Lock cover
Click
Unlocked
Lock lever
Note
To disconnect the sensor head connection cable, press and
hold the lock lever on the side of the connector and disconnect
the cable.
2
Put the lock cover on the connector, and lock the lock cover.
Lock cover
Locked
GT2-70-M-E
2
2-23
2-2 Connecting and Mounting the Sensor Head
Panel mount type
1
Remove the lock cover of the connector of the sensor head connection
cable, and insert the sensor head connection cable into the connector on
the back of the amplifier until it clicks.
2
Click
Installation and Connection
Orient the connector so that the lock
lever is on the left side.
Lock cover
Unlocked
Note
To disconnect the sensor head connection cable, press and
hold the lock lever on the side of the connector and disconnect
the cable.
2
Put the lock cover on the connector, and lock the lock cover.
Lock cover
Locked
2-24
GT2-70-M-E
2-2 Connecting and Mounting the Sensor Head
Installing the Head Cable Connector (OP-84338)
Note
1
Cut the cables to a necessary length.
Peel back the cable insulation about 15 mm from the end.
Note
Do not peel the insulation of the core wires.
2
Insert the cables into the connector holes of the matching color.
The cables are lightly locked when they reach the end.
Insert the cables
beyond this point.
Brown
Black
White
Blue
GT2-70-M-E
2-25
2
Installation and Connection
When the connector is changed, be sure to connect it to the
amplifier, and check that it operates correctly.
If it does not operate correctly, crimp the connector again with pliers
or a similar tool.
The connector cannot be reused if it is crimped once.
2-2 Connecting and Mounting the Sensor Head
3
Check that all the cables are inserted to the designated position, and
crimp the connector parallel with pliers or a similar tool to secure the
cables.
2
Installation and Connection
2-26
GT2-70-M-E
Basic Usage of the GT2-70 Series
This chapter describes the basic setting method for the GT2-70
Series (except for GT2-71D).
For the setting method for GT2-71D, refer to chapter 6.
3-1
Origin Alignment .................................................... 3-11
3-3
Setting the Tolerances ........................................... 3-14
3-4
Setting the HH/LL Criterion Value .......................... 3-21
3-5
Analog Output Function ......................................... 3-27
3-6
3
Main Screens ........................................................... 3-2
3-2
3
Useful Functions .................................................... 3-30
GT2-70-M-E
3-1
3-1
Main Screens
The following main screens appear on the main unit and are switched using the
[Left]/[Right] arrow buttons as shown below.
Display Patterns of the Main Screens
Some main screens are not displayed depending on the connection pattern, settings, and model of the amplifier.
For details on each screen, refer to the pages of the detail description.
3
Basic Usage of the GT2-70 Series
(1) P.V. value display
(8) Preset value setting display
(Page 3-10)
(7) 5 output LL setting value display
(Page 3-9)
(6) LOW setting value display
(Page 3-8)
(Page 3-3)
(2) Calculated value display
(3) R.V. value display
(Page 3-5)
(4) 5 output HH setting value display*
(5) HIGH setting value display
(Page 3-4)
(Page 3-6)
(Page 3-7)
* This screen does not appear on the GT2-71MCN/71MCP (analog output type).
3-2
GT2-70-M-E
3-1 Main Screens
(1) P.V. value display
The P.V. (= Present Value) display shows the current measurement of the displaced
contact.
When using the hold functions, the held value is displayed and the criterion output is
performed based on that value.
Note
On the P.V value display,
" PV indicator " is lit in red.
About 2 sec later
& lt; P.V. title screen & gt;
·
·
·
·
GT2-70-M-E
& lt; P.V. value display screen & gt;
Approximately two seconds after the title screen appears, it changes to
the digital LED display.
From the " P.V. value setting screen " , the tolerance calibration can be
set.
" Tolerance calibration " (page 3-16)
When the calculation function is used, the status indicator " CALC " lights
in red.
" 5-6 Calculation Setting Mode " (page 5-57)
The preset, measurement direction, multiplier, and calibration function
setting are displayed according to the P.V. value.
" Preset Function (Displaying a value by Adding or Subtracting a
Desired Value) " (page 3-30)
" 10. Measurement Direction " (page 5-18)
" 11. Multiplier " (page 5-19)
" 30. Calibration Function Setting " (page 5-52)
3-3
3
Basic Usage of the GT2-70 Series
The P.V. value display screen is not displayed in the following case.
• The main screen of an expansion unit when " CALc (calculation
mode) " is selected in the function setting " A1. Calculation Mode "
and the setting other than " C5. rEF (reference difference) " is
selected in the function setting " A2. Calculation Method " of the
main unit.
3-1 Main Screens
(2) Calculated value display
The calculated value display screen shows a calculated value such as a maximum
or minimum value of multiple detection points created when adding one or more
expansion units.
For details on calculation function, refer to
" 5-6 Calculation Setting Mode " (page 5-57).
Note
3
Basic Usage of the GT2-70 Series
The calculated value display screen is not displayed in the following
cases.
• When no expansion units are added.
• When " noCALc (not calculation) " is selected in the function setting
" A1. Calculation Mode " of the main unit.
• On the main screen of the main unit when " C5. rEF (reference
difference) " is selected in the function setting " A2. Calculation
Method " of the main unit.
• On the main screen of the expansion unit when the setting other
than " C5. rEF (reference difference) " is selected in the function
setting " A2. Calculation Method " of the main unit.
When the calculation function is used,
the status indicator " CALC " lights in red.
About 2 sec later
& lt; Calculation title screen & gt;
& lt; Calculated value display screen & gt;
• Approximately two seconds after the title screen appears, it changes to the digital
LED display.
• In the calculated value display screen, the displayed value is not held even when
using the hold function mode.
3-4
GT2-70-M-E
3-1 Main Screens
(3) R.V. value display
The R.V. (= Raw Value) value display shows the actual measured displacement of the
target, via the position of the spindle.
The displayed value is not held even when using the hold function mode, which
allows the actual detection value (spindle position) to be checked.
Note
On the R.V. value display screen, all the
bar LEDs are turned off.
About 2 sec later
& lt; R.V. title screen & gt;
·
·
GT2-70-M-E
& lt; R.V. value display screen & gt;
Approximately two seconds after the title screen appears, it changes to
the digital LED display.
The preset, measurement range multiplier, and calibration function are
accessible from the Raw Value screen.
" Preset Function (Displaying a value by Adding or Subtracting a
Desired Value) " (page 3-30)
" 10. Measurement Direction " (page 5-18)
" 11. Multiplier " (page 5-19)
" 30. Calibration Function Setting " (page 5-52)
3-5
3
Basic Usage of the GT2-70 Series
The R.V. value display screen is not displayed in the following case.
• On the main screen of the main unit when " CAL.noH (calculation
dedicated mode) is selected in the function setting " A1.
Calculation Mode " of the main unit.
3-1 Main Screens
(4) 5 output HH setting value display
When using the 5 output function, display/set the HH setting value higher than the HIGH
setting value.
When the P.V. value exceeds the value set here, the HH criterion is output.
For details on the 5 output function, refer to
" 16. Special Output Setting " (page 5-26).
Note
5 output HH setting value screen is not displayed in the following cases.
• When the setting other than " 5out (5 output) " is selected in the basic
setting " 16. Special Output Setting " of the main/expansion unit.
• On the main screen of the expansion unit when " CALc (calculation
mode) " is selected in the function setting " A1. Calculation mode " and
the setting other than " C5. rEF (reference difference) " is selected in
the function setting " A2. Calculation Method " of the main unit.
• When the sensor amplifier is GT2-71MCN/71MCP (analog output type).
3
Basic Usage of the GT2-70 Series
The leftmost bar LED
blinks in red.
The HH setting value
blinks in red.
About 2 sec later
& lt; HH title screen & gt;
& lt; HH setting value display screen & gt;
The HIGH position indicator blinks in green.
• Approximately two seconds after the title screen appears, it changes to the digital LED display.
■ Changing the HH setting value
You can change the setting using the [Up] or [Down] arrow button while the HH
setting value screen is displayed (while the displayed value, HIGH position indicator
and the leftmost bar LED blink).
Pushing the [Up] arrow button increases
the setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
HH setting value
Reference
3-6
Setting range
-199.9999 to 199.9999
Initial value
7.0000
The changed HH setting value can be initialized after simultaneously
holding down the [Up] and [Down] arrow buttons for 2 seconds or more
while the HH setting value screen is displayed.
GT2-70-M-E
3-1 Main Screens
(5) HIGH setting value display
Displays the upper limit value of the acceptable measuring range.
If the P.V. value exceeds this value, the HIGH output activates.
If the P.V. value stays between the HIGH setting value and LOW setting value, the GO
output activates.
Note
The HIGH position indicator
blinks in green.
The HIGH setting value
blinks in red.
About 2 sec later
& lt; HIGH setting value screen & gt;
& lt; HIGH title screen & gt;
• Approximately two seconds after the title screen appears, it changes to the digital
LED display.
• From the " (5) HIGH setting value display " and " (6) LOW setting value display " , the
two-point calibration can be set.
" Two-point calibration " (page 3-18)
■ Changing the HIGH setting value
You can change the setting using the [Up] or [Down] arrow button while the HIGH
setting value screen is displayed.
Pushing the [Up] arrow button increases
the setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
HIGH setting value
Reference
GT2-70-M-E
Setting range
-199.9999 to 199.9999
Initial value
5.0000
The changed HIGH setting value can be initialized after simultaneously
holding down the [Up] and [Down] arrow buttons for 2 seconds or more
while the HIGH setting value screen is displayed.
3-7
3
Basic Usage of the GT2-70 Series
The HIGH setting value screen is not displayed in the following case.
• On the main screen of the main unit when " CALc (calculation mode)
is selected in the function setting " A1. Calculation Mode " and the
setting other than " C5.rEF (reference difference) is selected in the
function setting " A2. Calculation Method " of the main unit.
3-1 Main Screens
(6) LOW setting value display
Displays the lower limit value of the acceptable measuring range.
If the P.V. value drops below this value, the LOW output activates.
If the P.V. value stays between the HIGH setting value and LOW setting value, the GO
output activates.
Note
The LOW setting value screen is not displayed in the following case.
• On the main screen of the expansion unit when " CALc (Calculation
Mode) " is selected in the function setting " A1. Calculation Mode " and
the setting other than " C5. rEF (Reference difference) " is selected in
the function setting " A2. Calculation Method " of the main unit.
3
Basic Usage of the GT2-70 Series
The LOW setting value blinks The LOW position indicator
blinks in green.
in red.
About 2 sec later
& lt; LOW setting value screen & gt;
& lt; LOW title screen & gt;
• Approximately two seconds after the title screen appears, it changes to the digital
LED display.
• One can perform a two-point calibration from the " (5) HIGH setting value display "
and " (6) LOW setting value display " .
" Two-point calibration " (page 3-18)
■ Changing the LOW setting value
You can change the setting value using the [Up] or [Down] arrow button while the
LOW setting value screen is displayed.
Pushing the [Up] arrow button increases
the setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
LOW setting value screen
Reference
3-8
Setting range
-199.9999 to 199.9999
Initial value
1.0000
The changed LOW setting value can be initialized after simultaneously
holding down the [Up] and [Down] arrow buttons for 2 seconds or more
while the LOW setting value screen is displayed.
GT2-70-M-E
3-1 Main Screens
(7) 5 output LL setting value display
When using the 5 output function, display/set the LL setting value lower than the LOW
setting value.
When the P.V. value drops below the value set here, the LL criterion is output.
For details on the 5 output function, refer to
" 16. Special Output Setting " (page 5-26).
Note
The LL setting value
blinks in red.
The rightmost bar
LED blinks in red.
About 2 sec later
& lt; LL setting value display screen & gt;
& lt; LL title screen & gt;
The LOW position indicator blinks in green.
• Approximately two seconds after the title screen appears, it changes to the digital LED display.
■ Changing the LL setting value
You can change the setting using the [Up] or [Down] arrow button while the LL
setting value screen is displayed (while the displayed value, LOW position indicator
and the leftmost bar LED blink).
Pushing the [Up] arrow button increases
the setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
LL setting value
Reference
GT2-70-M-E
Setting range
-199.9999 to 199.9999
Initial value
-1.0000
The changed LL setting value can be initialized after simultaneously
holding down the [Up] and [Down] arrow buttons for 2 seconds or more
while the LL setting value screen is displayed.
3-9
3
Basic Usage of the GT2-70 Series
5 output LL setting value screen is not displayed in the following cases.
• When the setting other than " 5out (5 output) " is selected in the basic
setting " 16. Special Output Setting " of the main/expansion unit.
• On the main screen of the expansion unit " CALc (Calculation Mode) "
is selected in the function setting " A1. Calculation Mode " , and the
setting other than " C5. rEF (reference difference) " is selected in the
function setting " A2. Calculation Method " of the main unit.
• When the sensor amplifier is GT2-71MCN/71MCP (analog output type)
3-1 Main Screens
(8) Preset value setting display
Display/Set the number to be added to or subtracted from the display value.
For details on the preset function, refer to
" Preset Function (Displaying a value
by Adding or Subtracting a Desired Value) " (page 3-30).
Note
3
Basic Usage of the GT2-70 Series
The preset value setting screen is not displayed in the following case.
• On the main screen of the main unit when the setting other than
" CAL.noH (calculation dedicated mode) " is selected in function
setting " A1. Calculation Mode " of the main unit.
The Preset setting value
blinks in red.
The PRESET position
indicator blinks in red.
About 2 sec later
& lt; Preset value setting screen & gt;
& lt; Preset title screen & gt;
• Approximately two seconds after the title screen appears, it changes to the digital
LED display.
■ Changing the preset setting value
You can change the setting value using the [Up] or [Down] arrow button while the
Preset setting value screen is displayed (when the displayed value and the PRESET
position indicator blink).
Pushing the [Up] arrow button increases
the setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
Preset setting value
Reference
3-10
Setting range
-199.9999 to 199.9999
Initial value
0.0000
The changed preset setting value can be initialized after simultaneously
holding down the [Up] and [Down] arrow buttons for 2 seconds or more
while the preset value setting screen is displayed.
GT2-70-M-E
3-2
Origin Alignment
When you use the GT2-70 Series for the first time or when you replace the sensor
head, you must reset the origin.
The tolerance range will be now based on the new origin.
" 3-3 Setting the Tolerances " (page 3-14)
The origin can be adjusted either by the sensor directly or from a remote external
input.
Align the origin by the following methods.
• Adjusting the origin directly from the sensor
• Origin alignment by external input
• You cannot align the origin when the R.V. value display screen is
displayed as " ------ " . (Immediately after the power is turned on, or
immediately after the reset input)
• Aligned origin is written to the internal memory every time, so the
changed origin is saved even after the power is turned off. The origin
alignment can be performed up to about a million times.
• If you frequently perform origin alignment through an external input,
select " OFF " for " 21. Store Preset Value " . If " OFF " is selected, origin
alignment can be set, however it is not written to the internal memory.
(When the power is turned off, it returns to the previously stored origin.)
" 21. Store Preset Value " (page 5-42)
We recommend that you should periodically reset the origin for more
accurate judgment.
Reference
Adjusting the Origin Directly from the Sensor
This section describes the procedures of the origin alignment using the operation
buttons of the sensor amplifier.
1
Place the sensor's contact on the desired target to serve as the origin.
Reference
The origin can only be set on the
main screen.
" 3-1 Main Screens " (page 3-2)
Target
GT2-70-M-E
3-11
Basic Usage of the GT2-70 Series
Note
3
3-2 Origin Alignment
2
Press the [PRESET] button while the master workpiece is in place.
After " PrESEt " blinks several times on the amplifier display screen, " 0.000.0 " * is
displayed on the P.V. value display, and the origin has been set.
3
Basic Usage of the GT2-70 Series
Master
workpiece
Master
workpiece
Origin
Detecting the target
(Before origin alignment is performed)
" PrESEt " blinks
(Performing the origin alignment)
Detecting the target
(After origin alignment is performed)
Press the [PRESET] button
* When using the preset function, the specified preset value is displayed.
Reference
To reset the origin to factory default, hold down the preset button.
After " PrESEt " is displayed, " rESEt " blinks, indicating that the origin
alignment is reset to the factory default setting.
■ Origin alignment combined with the preset function
When you want to display a desired value for the measured value, such as when
measuring a master workpiece, the origin can be aligned without changing the
mounting position of the sensor head by combining the preset function.
1
Place the sensor’s contact on the desired target to serve as the origin.
Master
workpiece
3-12
& lt; P.V. value display screen & gt;
GT2-70-M-E
3-2 Origin Alignment
2
Set a value that you want to display when measuring the master workpiece.
Example
If you want to make the measured value for the master workpiece 6.000.0,
set the preset value to 6.000.0.
3
& lt; Preset value setting screen & gt;
" (8) Preset value setting display " (page 3-10)
Press the [PRESET] button while the master workpiece is in place.
After " PrESEt " blinks several times on the amplifier display screen, " 6.000.0 " is
displayed on the P.V. value display screen.
Master
workpiece
Detecting the master workpiece
(Before origin alignment is performed)
Master
workpiece
" PrESEt " blinks
(Performing the origin alignment)
Detecting the master workpiece
(After origin alignment is performed)
Press the [PRESET] button
Origin Alignment by External Input
By short-circuiting " Preset input " (pink line) from the external device, origin alignment
is performed within the minimum input time. (The preset indicator blinks for about 0.3
seconds.)
" 7-2 I/O Diagram " (page 7-8)
" Minimum Input Time " (page 7-14)
Reference
GT2-70-M-E
When origin alignment is performed by external input, " PrESEt " is not
displayed.
3-13
Basic Usage of the GT2-70 Series
3
3-3
Setting the Tolerances
The tolerances of the GT series are comprised of upper and lower limits. Any
measured value that goes beyond the upper or lower limits will activate the HIGH or
LOW outputs respectively. Any measured value that lies between the tolerances will
activate a GO output.
3
These outputs are displayed on both the sensor amplifier as well as the head. A HIGH
or LOW output is displayed as a red indicator light whereas a GO output is a green
light. The output indicator on the head is easily visible so that a user can simply glance
at the sensor and know whether the target is good or defective.
Basic Usage of the GT2-70 Series
The head indicator blinks while the sensor head is being set, so even if multiple devices are
installed side by side, the sensor head currently being set can be recognized at a glance.
Operation indicator
HI/GO/LO indications
The tolerances can be set either manually or automatically.
Item
Manual setting
Tolerance
calibration
Two-point
calibration
Automatic
setting
Procedure for setting the value
Directly enter the tolerances (HIGH setting value, LOW
setting value).
Measure the master workpiece and set the tolerance.
Measure the good and defective product and set the
tolerance.
Note
When setting the tolerances manually or by two-point calibration, be
sure to set them as " HIGH setting value & gt; LOW setting value " .
Reference
·
·
3-14
The criterion output when setting as " HIGH setting value & lt; LOW setting value " is
as follows.
· Regardless of the detected value, the GO criterion is not output.
· When the value that is over the HIGH setting value and under the LOW setting
value is detected, the HIGH criterion and the LOW criterion are output at the
same time.
When " 5 out (5 output) " is selected in " 16. Special output setting " , 5
levels of judgment are possible with two additional setting values.
For the HH/LL setting method, refer to
" 3-4 Setting the HH/LL
Criterion Value " (page 3-21).
GT2-70-M-E
3-3 Setting the Tolerances
Setting the Tolerances Manually
This is a method for directly setting the Tolerances (HIGH setting value, LOW setting
value).
1
On the main screen of " HIGH setting value " , set a value using the [Up]/
[Down] arrow button.
" (5) HIGH setting value display " (page 3-7)
the setting value.
Pushing the [Down] arrow button
decreases the setting value.
Item
HIGH setting value
2
Setting range
-199.9999 to 199.9999
Initial value
5.0000
On the main screen of " LOW setting value " , set a value using the [Up]/
[Down] arrow button.
" (6) LOW setting value display " (page 3-8)
Pushing the [Up] arrow button increases the
setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
LOW setting value
screen
3
Setting range
-199.9999 to 199.9999
Initial value
1.0000
To return to the P.V. value display screen, press the [Right]/[Left] arrow
buttons.
Reference
GT2-70-M-E
When the HIGH setting value or LOW setting value is set, the new
setting values immediately take effect.
3-15
Basic Usage of the GT2-70 Series
Pushing the [Up] arrow button increases
3
3-3 Setting the Tolerances
Setting Up the Tolerances Automatically
The upper limit value (HIGH setting value) and lower limit value (LOW setting value)
are automatically set.
Tolerances can be set with " Tolerance calibration " when a master workpiece is
available and with " Two-point calibration " when actual good and defective targets are
available.
3
Tolerance calibration
Basic Usage of the GT2-70 Series
This is a method for setting a range based on the detection value of a master
workpiece when the master workpiece is available.
HIGH setting value
Setting range for the tolerance calibration
Master workpiece
Center of tolerance
LOW setting value
Note
The tolerance calibration cannot be performed when " ------ " is displayed.
When " -FFFF " or " FFFF " is displayed, the tolerance cannot be set
correctly.
1
While on the " P.V. display screen " , position the sensor head to measure
the master workpiece and display value you want to use as are ference.
" (1) P.V. value display " (page 3-3)
& lt; P.V. value display screen & gt;
3-16
Master workpiece
GT2-70-M-E
3-3 Setting the Tolerances
2
Press the [SET] button to capture that value.
The value captured is the now the center of tolerance.
& lt; Tolerance calibration screen & gt;
& lt; Setting range for tolerance calibration & gt;
Adjust the tolerance calibration range by using the [Up]/[Down] arrow
buttons.
Pushing the [Up] arrow button increases the
setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
setting range for tolerance
calibration
4
Setting range
-199.9999 to 199.9999
Initial value
0.1000
Press the [SET] button to complete the tolerance calibration setup.
" SEt " blinks, and the HIGH setting value and LOW setting value are determined.
After it blinks for about a second, it returns to the P.V. value display screen.
& lt; Tolerance calibration completion screen & gt;
" SEt " blinks for one second.
Reference
GT2-70-M-E
& lt; P.V. value display screen & gt;
The HIGH setting value and LOW setting value can be adjusted after the
tolerance calibration is set.
" (5) HIGH setting value display " (page 3-7)
" (6) LOW setting value display " (page 3-8)
3-17
3
Basic Usage of the GT2-70 Series
3
Displays
alternately.
3-3 Setting the Tolerances
Two-point calibration
This is a method to set the intermediate value between a good target and a defective
target as the tolerance when a good target, a HIGH defective target and a LOW
defective target are available.
Note
The two-point calibration cannot be performed when " ------ " " -FFFF " or " FFFF " is
shown on the R.V. value display.
3
Basic Usage of the GT2-70 Series
1
On the main screen of " HIGH setting value
display " , detect the good target that you
want to be judged as a GO output.
Good
target
GO
& lt; HIGH setting value screen & gt;
2
Press the [SET] button while the good target is being detected.
Displays
alternately.
3
Detected value for the good target
Press the [SET] button while the HIGH defective target is being detected.
The value for the HIGH defective target is captured.
For the HIGH setting value, the
intermediate value of the detected
values of the good target captured
in step 2 and the HIGH defective
target captured in step 3 is set.
HIGH
tolerance
HIGH
GO
HIGH defective target
3-18
GT2-70-M-E
3-3 Setting the Tolerances
4
Display the main screen of " LOW setting value
screen " and detect a good target that you want
to judge as a good workpiece (GO criterion).
Good
target
GO
3
& lt; LOW setting value screen & gt;
Press the [SET] button while the good target is being detected.
Displays
alternately.
6
The intermediate value between the
detection value of the good target
captured in step 5 and the detection
value of the LOW defective target
captured in step 6 is set as the LOW
setting value.
7
Detected value for the good target
Press the [SET] button while the LOW defective target is being detected.
The value for the LOW defective target is captured.
GO
LOW
LOW tolerance
LOW defective target
Press the [Right]/[Left] arrow buttons to return to the P.V. value display
screen.
Two-point calibration is complete.
HIGH setting value
LOW setting value
HIGH
defective
target
Reference
GT2-70-M-E
Good
target
LOW
defective
target
The HIGH setting value and LOW setting value can be adjusted after
the two-point calibration is set.
" (5) HIGH setting value display " (page 3-7)
" (6) LOW setting value display " (page 3-8)
3-19
Basic Usage of the GT2-70 Series
5
3-3 Setting the Tolerances
Displaying the Detection Result
After the tolerance setup of the GT2-70 Series is completed the following results are
displayed on the sensor amplifier and sensor head.
In this example, the tolerances " HIGH setting value = 6.0000 " and " LOW setting value
= 3.0000 " are set.
3
When judged as HIGH
Basic Usage of the GT2-70 Series
Lights in red
When judged as GO
Lights in green
When judged as LOW
Lights in red
HIGH range
GO range
HIGH setting
value
LOW setting
value
LOW range
P.V. value display screen
3-20
GT2-70-M-E
3-4
Setting the HH/LL Criterion Value
When " 5out (5 output) " is selected in " 16. Special Output Setting " of the basic setting
mode, HH setting value can be set above the upper limit (HIGH setting value) and
the LL setting value can be set below the lower limit (LOW setting value).
The criterion is displayed and output in 5 levels by adding HH criterion and LL
criterion to HIGH criterion, LOW criterion, and GO criterion.
Note
When the sensor amplifier is GT2-71MCN/71MCP (analog output type),
the HH/LL criterion value cannot be set.
3
HH criterion range
GO criterion range
LOW criterion range
LL criterion range
HH/LL criterion value is set either manually or automatically.
Item
Manual setting
Automatic
setting
Two-point
calibration
Setting method
Directly input the criterion value (HH setting value, LL setting value).
Detect the good target and HH/LL criterion
target, and automatically set the tolerance.
Note
• The HH setting value/LL setting value can be set only when " 5out (5 output) " is
selected in " 16. Special Output Setting " of the basic setting mode.
• When setting the criterion values manually and or with the two-point
calibration, make sure to set the values in the following relationship.
HH setting value & gt; HIGH setting value & gt; LOW setting value & gt; LL setting value
Reference
·
·
·
GT2-70-M-E
When setting the values as " HH setting value & lt; HIGH setting value " , the
HIGH setting value is not output.
When setting the values as " LOW setting value & lt; LL setting value " , the
LOW setting value is not output.
Criterion outputs when setting the values as " HH setting value & lt; LL
setting values " are as follows.
· Regardless of the detected value, the GO criterion, HIGH criterion,
and LOW criterion are not output.
· When the value that is over the HH setting value and under the LL setting value
is detected, the HH criterion and the LL criterion are output at the same time.
3-21
Basic Usage of the GT2-70 Series
HH/LL criterion result display
HIGH criterion range
3-4 Setting the HH/LL Criterion Value
Setting HH/LL Criterion Value Manually
Following is a method for directly setting the HH/LL criterion value (HH setting value,
LL setting value).
Note
When the sensor amplifier is GT2-71MCN/71MCP (analog output type),
the HH/LL criterion value cannot be set.
3
Basic Usage of the GT2-70 Series
1
Display the " HH setting value screen " of the basic screen and set a
desired value using the [Up] or [Down] arrow button.
" (4) 5 output HH setting value display " (page 3-6)
Pushing the [Up] arrow button increases
the setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
HH setting value
2
Setting range
-199.9999 to 199.9999
Initial value
7.0000
Display the " LL setting value screen " of the basic screen and set a
desired value using the [Up] or [Down] arrow button.
" (7) 5 output LL setting value display " (page 3-9)
Pushing the [Up] arrow button increases
the setting value.
Pushing the [Down] arrow button decreases
the setting value.
Item
LL setting value
3
Initial value
-1.0000
Return to the P.V. value display screen using the [Right] or [Left] arrow button.
Reference
3-22
Setting range
-199.9999 to 199.9999
When the HH setting value/LL setting value is set, the criterion
identification and output start at the same time with a new setting value.
GT2-70-M-E
3-4 Setting the HH/LL Criterion Value
Setting HH/LL Criterion Value Automatically
You can set the HH/LL criterion value (HH setting value, LL setting value)
automatically (two-point calibration).
The following is a method to set the intermediate value between the detected values
of the HIGH defective target, HH defective target, LOW defective target, and LL
defective target as the tolerance for each pair when these defective targets are
available.
Note
1
Display " HH setting value screen " of the main screen
and detect the HIGH defective target (the detected
target that you want to judge as the HIGH criterion).
HIGH
defective
target
HIGH
criterion
& lt; HH setting value screen & gt;
2
While the HIGH defective target is being detected, press the [SET] button
to capture the value.
Displays
alternately.
Detected value for the HIGH defective target
GT2-70-M-E
3-23
Basic Usage of the GT2-70 Series
• When the sensor amplifier is GT2-71MCN/71MCP (analog output type),
the HH/LL criterion value cannot be set.
• When the R.V. value display screen is displayed as " ------ " , the twopoint calibration cannot be performed. When " -FFFF " or " FFFF " is
displayed, the tolerance cannot be set correctly.
3
3-4 Setting the HH/LL Criterion Value
3
When the HH defective target is detected, press the [SET] button to
capture the value.
The detected value of the HH defective target is captured, and the HH setting
value is determined.
3
Basic Usage of the GT2-70 Series
For the HH setting value, the
intermediate value of the detected
values of the HIGH defective
target captured in step 2 and the
HH defective target captured in
step 3 is set.
4
HH criterion
HH setting
value
HIGH criterion
HH defective target
Display " LL setting value screen " of the basic screen
and detect the Low defective target (the detected
target that you want to judge as the LOW criterion).
LOW
defective
target
LOW
criterion
& lt; LL setting value screen & gt;
5
While the LOW defective target is being detected, press the [SET] button
to capture the value.
Displays
alternately.
3-24
Detected value for the LOW defective target
GT2-70-M-E
3-4 Setting the HH/LL Criterion Value
6
When the LL defective target is detected, press the [SET] button to
capture the value.
The detected value of the LL defective target is captured, and the LL setting
value is determined.
3
7
LOW criterion
LL criterion
LL setting
value
LL defective target
Return to the P.V. value display screen using the [Right] or [Left] arrow button.
The two-point calibration is completed.
HH setting value
(HIGH setting value)
(LOW setting value)
LL setting value
HH
defective
target
HIGH
Good
LOW
LL
（ defective ） target （ defective ）defective
target
target
target
Reference
GT2-70-M-E
The HH setting value and LL setting value can be adjusted after the
two-point calibration is set.
" (4) 5 output HH setting value display " (page 3-6)
" (7) 5 output LL setting value display " (page 3-9)
3-25
Basic Usage of the GT2-70 Series
For the LL setting value, the
intermediate value of the detected
values of the LOW defective target
captured in step 5 and the LL
defective target captured in step 6
is set.
3-4 Setting the HH/LL Criterion Value
Displaying the Detection Result
After the HH/LL criterion values are complete and detection is performed, the
following results are displayed on the sensor amplifier and sensor head.
3
In this example, the criterion values are set as " HIGH setting value = 7.0000 " , " LOW
setting value = 3.0000 " , " 5 output HH setting value = 9.000 " , and " 5 output LL setting
value = 1.000 " .
Basic Usage of the GT2-70 Series
When judged as
HH
When judged as
HIGH
Lights in
red
Lights in
red
When judged as
GO
Lights in
green
When judged as
LOW
Lights in
red
When judged as
LL
Lights in
red
HH criterion
range
HIGH criterion
range
HH setting
value
GO criterion
range
LOW criterion
range
HIGH
setting
value
LOW setting
value
LL setting
value
LL criterion range
P.V. value display screen
Note
• Operations of the HH output/LL output change depending on the
items selected in " 16. Special Output Setting " .
" 16. Special Output Setting " (page 5-26)
• When the sensor amplifier is GT2-71MCN/71MCP (analog output type),
the HH/LL criterion value cannot be set.
3-26
GT2-70-M-E
3-5
Analog Output Function
If the sensor amplifier is GT2-71MCN/71MCP (analog output type), the measurement value
(R.V. value) can be output after being converted into the electric current value (4 to 20 mA).
Note
• The analog output function is available only when the sensor
amplifier is GT2-71MCN/71MCP.
• When the sensor amplifier is in an error state, 0 mA are output.
• When " Calculation dedicated mode " is selected in " A1. Calculation
mode setting " , the measurement value (R.V. value) is output based
on the CALC value (calculation result value).
When " dEFALt (default) " is selected in " 16. Analog Range Setting " , the sensor
amplifier (GT2-71MCN/71MCP) converts the measurement value (R.V. value) into an
electric current value (4 to 20 mA) and outputs it as follows.
" 16. Analog Range Setting " (page 5-37)
Electric current output
20 mA
4 mA
Lower limit value
Upper limit value
Measurement value
(R.V. value)
Upper limit value
The upper limit varies depending on the sensor head being used.
Sensor head
GT2-H12(L)/H12K(L)/A12(L)/A12K(L)
Upper limit value
12.0000
GT2-H32(L)/A32
32.0000
GT2-H50/A50
50.0000
" Calculation dedicated mode " is selected
12.0000
Lower limit value
The lower limit value is the position where the R.V. value display screen shows
" 0.0000 " regardless of the sensor head being used.
GT2-70-M-E
3-27
Basic Usage of the GT2-70 Series
Analog Output
3
3-5 Analog Output Function
Analog output specifications
Output range
3 μA
Accuracy
Set range ±0.25%
Update cycle
3
4 to 20 mA
Resolution
1 ms
Response time
Response time set on the amplifier + 1 ms (100% response)
Load resistance
Max. 350 Ω
Basic Usage of the GT2-70 Series
Free Range Analog Setting
When " FrEE (Free range settings) " is selected in " 16. Analog Range Setting " , the
range of the analog output can be set to a desired value in " 17. Free Range Settings
(Hi) " and " 18. Free Range Settings (Lo) " .
" 17. Free Range Settings (Hi) " (page 5-38)
" 18. Free Range Settings (Lo) " (page 5-39)
Item
Setting range
Free range settings (Hi)/Free range settings (Lo)
-199.9999 to 199.9999 (unit: mm)
When the setting is Hi & gt; Lo
Electric current output
20 mA
4 mA
Setting (Lo)
3-28
Setting (Hi)
Measurement value
(R.V. value)
GT2-70-M-E
3-5 Analog Output Function
When the setting is Hi & lt; Lo
Electric current output
20 mA
3
4 mA
Setting (Lo)
Measurement value
(R.V. value)
When the setting is Hi = Lo
Electric current output
20 mA
4 mA
Setting (Lo) = Setting (Hi)
Measurement value
(R.V. value)
* When the measurement value (R.V. value) is less than the Hi/Lo Setting, 4 mA is
output. When the measurement value (R.V. value) is greater than the Hi/Lo Setting,
20 mA is output.
GT2-70-M-E
3-29
Basic Usage of the GT2-70 Series
Setting (Hi)
3-6
Useful Functions
Preset Function (Displaying a value by Adding or Subtracting a Desired Value)
When the preset value is set, the displayed value can be changed by adding or
subtracting the desired value (preset value).
Example To change the value by adding " 10.0000 "
3
Display " 5.0000 " before setting
the preset value
Basic Usage of the GT2-70 Series
Before adjusting the preset
Set " 10.0000 " for the preset value.
Change the value by adding
the preset value " 10.0000 " to
" 5.0000 " after the preset is set.
After adjusting the preset
• Adjust the preset on the main screen of " Preset value setting screen " .
" (8) Preset value setting display " (page 3-10)
• The criterion outputs are judged by setting the value to which the preset value is
added as the detected value. After the preset values is set, set the criterion values
(5 output HH setting value/HIGH setting value/LOW setting value/LL setting value)
again.
• By combining with the origin alignment, a desired value can be displayed as the
detected value of the workpiece (master workpiece).
" 3-2 Origin Alignment " (page 3-11)
3-30
GT2-70-M-E
3-6 Useful Functions
Bank Function (Registering Multiple Criterion Values and Preset Values)
Reference
The preset point can be set for each bank individually or for all the banks together.
" 22. Preset Point " (page 5-43)
GT2-70-M-E
3-31
3
Basic Usage of the GT2-70 Series
With GT2-70 Series, you can register up to four pre-registered HI/GO/LO settings.
• HH setting value
• HIGH setting value
• LOW setting value
• LL setting value
• Preset point (origin alignment position)
• Preset value
By using the bank function, registered setting items can be switched easily
according to the changes of the type of the detection target.
3-6 Useful Functions
How to switch the bank
The bank can be switched either by button operations of the sensor amplifier or by
an external input.
■ Switching the bank by button operation
While holding down the [MODE] button, press the [UP] arrow button. Each pressing
of the [Up] button allows the bank to switch to another one.
3
& lt; Bank 0 is selected & gt;
Basic Usage of the GT2-70 Series
The bank indicator is turned
off.
While holding down [MODE],
press [Up]
& lt; Bank 1 is selected & gt;
The bank indicator 1 is lit
in green.
While holding down [MODE],
press [Up]
While holding
down [MODE],
press the [Up].
& lt; Bank 2 is selected & gt;
The bank indicator 2 is lit
in green.
While holding down [MODE],
press [Up]
& lt; Bank 3 is selected & gt;
The bank indicator 3 is lit
in green.
Note
The bank can be switched by external input only when the key lock is
active.
Therefore, when the key lock is activated, the bank switches
depending on the status (combination of ON/OFF) of the BANK A
input (violet wire) and Bank B input (yellow wire).
" Switching the bank by external input " (page 3-33)
Reference
3-32
The selected bank is retained even after turning off the power and turning it back
on.
GT2-70-M-E
3-6 Useful Functions
■ Switching the bank by external input
Switching the bank using an external input is performed using Bank A input (violet
wire) and Bank B input (yellow wire).
1
Set the key lock function.
If you switch the bank using an external
input, the sensor amplifier must be in a key
locked state or full key locked state.
2
" Key Lock " (page 3-39).
Switch the banks by combining ON/OFF of the BANK A input and Bank B
input.
•The bank input should be 20 ms or longer.
" Minimum Input Time " (page 7-14)
•The combination patterns of BANK A input and BANK B input are as follows.
Bank
Bank 0
Bank 1
Bank 2
Bank 3
Input line 1
OFF
ON
OFF
ON
Input line 2
OFF
OFF
ON
ON
ON: Short-circuited
OFF: Open
•The display when the bank is switched using the input line function is the
same as when the bank is switched using the buttons.
" Switching the bank by button operation " (page 3-32)
•When key lock is deactivated, the bank selected by the input line is retained.
Reference
GT2-71(C)N/72(C)N/75N/76N
Brown*
GT2-71(C)P/72(C)P/75P/76P
Brown*
+V
+V
Violet,
yellow
Blue*
0V
Blue*
0V
Violet, yellow
* • The expansion units (GT2-72N/76N, GT2-72P/76P) have no
brown-blue line. (The power wires of the main unit and those of the
expansion unit are bussed together.)
• The brown and blue lines are not connected on the GT2-72CN/72CP.
" 7-2 I/O Diagram " (page 7-8)
GT2-70-M-E
3-33
Basic Usage of the GT2-70 Series
Refer to
3
3-6 Useful Functions
Reset Input (Resetting Internal Values)
When a reset signal is input from an external input (red wire), all of the outputs are
turned off (when N.O. is set) and the P.V. and R.V. values become " - - - - - - " during the
reset (from 20 ms after the rise of the reset input to the completion of reset)
Reference
3
The resetting time is the same as the response time set in " 03. Response
Time " (page 5-9).
Display value
Basic Usage of the GT2-70 Series
Start reset
End reset
HIGH criterion value
Criterion standby display
LOW criterion value
Max. 20 ms
Time
Reset input ON
OFF
Min. 20 ms
HIGH output ON
OFF
GO output ON
OFF
LOW output ON
OFF
20 ms pass after previous
reset input rising edge
Resetting time
(depends on response time)
Note
Wait until 20 ms have passed after the previous reset input before
entering a new reset input. If fewer than 20 ms pass, the reset input
may not be recognized.
3-34
GT2-70-M-E
3-6 Useful Functions
■ Reset input when using the hold function
When a reset signal is input from an external input (red wire) while using the hold
function, all of the criterion outputs are turned off (when N.O. is set) and the P.V. and
R.V. values becomes " - - - - - - " from the time that resetting starts to the time when the
next external timing input turns on.
Reference
The resetting time is the same as the response time set in " 03. Response
Time " (page 5-9).
Sampling period A
Peak value
3
Sampling period B peak value
Resetting time
(depends on response time)
R.V. value
currently held
HIGH criterion value
Criterion standby display
Peak sampling period
R.V. value
LOW criterion value
R.V. value
currently held
Time
Sampling period A
Sampling period C
Sampling period B
Max. 20 ms
ON
Reset input OFF
⑤
Min. 20 ms
ON
External timing input OFF
HIGH output ON
OFF
GO output ON
OFF
LOW output ON
OFF
(1)
(2)
(3)
(4)
(6)
(7)
(1) The peak value is stored while the external timing input is off (sampling period A ).
(2) At the rise time of the external timing input (end of the sampling period A ), the peak value stored during the
sampling period A is displayed. This peak value is taken as a measured value and the GO output turns on.
(3) Peak value is stored while the external timing input is off (sampling period B ).
(4) At the rise time of the external timing input (end of the sampling period B ), the peak value stored
during the sampling period B is displayed. The peak value is taken as the measured value, In this
case, The HIGH output turns on.
(5) When a reset signal currently held is activated, all of the criterion outputs are turned off 20 ms after
the reset input started at the latest. At this time, " - - - - - - " is displayed on the sensor amplifier.
(6) After the resetting time ends, sampling starts when the external timing input turns off. Sampling continues
until the next external timing input turns on and the peak value is saved.
(7) At the rise time of the external timing input (end of the sampling period C ), the peak value stored
during the sampling period C is displayed. This peak value is taken as a measured value and the
GO output turns on.
Note
GT2-70-M-E
Wait until 20 ms have passed after the previous reset input before entering a new
reset input. If fewer than 20 ms pass, the reset input may not be recognized.
3-35
Basic Usage of the GT2-70 Series
Displayed
value
3-6 Useful Functions
Hysteresis
If the P.V. value is fluctuating around the tolerances, the outputs may repeatedly turn
on and off. By increasing the hysteresis value, the delta between the SET and
RESET distance widens to reduce output chattering.
You can set the hysteresis in the basic setting mode of " 14. Hysteresis " .
3
Refer to
" 14. Hysteresis " (page 5-22) for details on hysteresis.
Displayed value
Basic Usage of the GT2-70 Series
HH setting value
Hysteresis
HIGH setting value
Hysteresis
Hysteresis
Hysteresis
Hysteresis
LOW setting value
Hysteresis
LL setting value
Hysteresis
Hysteresis
HH output
ON
OFF
HIGH output
ON
OFF
GO output
time
ON
OFF
ON
OFF
LOW output
LL output
Reference
ON
OFF
·
·
·
3-36
The hysteresis is set to " 0.0030 " when shipped from the factory.
The hysteresis is available during HIGH/GO/LOW criterion output, and
HH/LL output when " 5out (5 output) " is selected in " 16. Special Output
Setting " .
The hysteresis of HH/LL output cannot be changed when " Lt (limit
output) " or " Lt.USEr (limit output user setting) " is selected in " 16. Special
Output Setting " .
GT2-70-M-E
3-6 Useful Functions
Initialization (Initial Reset)
Reset all settings to the factory default setting.
* The span adjustment result set in the calibration setting is not initialized.
" 30. Calibration Function Setting " (page 5-52)
1
Reference
2
& lt; Initialization screen & gt;
Select " rSt.YES " by using the [Up]/[Down] arrow buttons.
" YES " is blinking.
Reference
3
When you press either [PRESET],
[SET], [LEFT], or [RIGHT], the
initialization is canceled and the
screen returns to the main screen.
When you press either [PRESET],
[SET], [LEFT], or [RIGHT], the
initialization is canceled and the
screen returns to the main screen.
Press the [MODE] button to start initialization.
Initialization is completed when " rSt.End " is displayed.
After the initialization is completed, the screen automatically returns to the main screen.
& lt; Resetting screen & gt;
Reference
GT2-70-M-E
& lt; Reset completion screen & gt;
When you attempt to initialize
the equipment while the key
lock function is set, the screen
shown on the right appears and
the initialization fails.
You must first cancel the key
lock setting before attempting
to initialize the unit.
" Key Lock " (page 3-39)
3-37
3
Basic Usage of the GT2-70 Series
On the main screen, while holding down the [MODE] button, press the
[SET] button five times.
The initialization screen appears.
" no " is blinking.
3-6 Useful Functions
Switching the Display Unit (mm/inch)
The display unit can be switched from the initial reset screen.
This section explains how to switch from " mm " display to " inch " display.
3
Basic Usage of the GT2-70 Series
1
Display " rSt.YES " from the initial reset screen.
Refer to " Initial reset " for more details on how to display " rSt.YES " .
2
Pressing the [MODE] button, press the [SET] button for 2 seconds or
more.
3
Use the up and down Arrow button to select
" inch " .
4
Press the [MODE] button.
" rSt.End " will appear.
Switching the display unit is completed.
3-38
GT2-70-M-E
3-6 Useful Functions
Key Lock
The key lock function prevents unwanted button pushing.
Use either of the following key lock functions according to the purpose.
Disables the operations other than the display switching and the
operation of the [PRESET] button.
Full key lock: Disables all operations other than the display switching.
Key lock:
3
" Bank Function (Registering Multiple Criterion Values and Preset Values) " (page
3-31)
Setting the key lock
On the main screen, while holding down the [MODE] button, press the [Up] arrow
button for two seconds or more.
The key lock screen appears and then changes to the main screen.
Key lock screen
Reference
During key lock, only the switching of the main screen display and the
operation of the [PRESET] button are accepted.
Full key lock
Display the main screen, and while pressing the [MODE] button, press the [Down]
arrow button for two seconds or more.
The full key lock screen appears, and then changes to the main screen.
Reference
GT2-70-M-E
While the full key lock function is set, only the switching of the main
screen display is accepted.
3-39
Basic Usage of the GT2-70 Series
If you switch the bank by an external input, the key lock function (or full key lock)
must be set.
3-6 Useful Functions
Canceling the key lock
Under the key locked state, while holding down the [MODE] button, press the [Up] or
[Down] arrow button for two seconds or more.
The key lock cancel screen appears and then changes to the main screen.
3
Key lock cancel screen
Basic Usage of the GT2-70 Series
Copy Function
This copies the settings of the main unit to the expansion unit.
The copy function is available for " function setting " , " basic setting " , and " additional
function setting " respectively.
" List of Setting Modes " (page 5-2)
Note
• The copy function is available only when the expansion unit is
added.
• This function cannot be used when a model other than the GT2-70
Series is added.
• The " calibration setting " cannot be copied.
1
Configure the settings of the main unit for
each setting mode, and display the
"
" screen.
The "
" screen appears in the end when the
[Right] arrow button is kept pressed in each
& lt; Main unit screen & gt;
Press and hold
for at
least 2 sec
setting mode.
2
3-40
Press and hold the [Up] and [Down] arrow
buttons at the same time while the "
"
screen is displayed (for at least two seconds).
The copy screen appears.
" no " is blinking
& lt; Main unit screen & gt;
GT2-70-M-E
3-6 Useful Functions
3
Select " CPY.YES " with the [Up]/[Down]
arrow buttons.
" YES " is blinking
& lt; Main unit screen & gt;
Press
or
4
MODE
Press the [MODE] button or the [Right]
arrow button to copy the settings to the
connected expansion unit.
3
& lt; Expansion unit screen & gt;
The following settings will not be copied.
• When the main unit is GT2-71MCN/71MCP (analog output type),
items of " 16. Analog Range Setting " , " 17. Free Range Settings
(Hi) " , and " 18. Free Range Settings (Lo) "
• 16. Special Output Setting (only when " ALL.Go " or " ALL.Lt " is
selected)
• Limit output teaching position, jam detection checkpoint setting
(only when " Lt.USEr (limit output user setting) " is selected in " 16.
Special Output Setting " )
• Jam detection teaching position, jam detection checkpoint setting
(only when " USEr (user) " is selected in " 24. Jam detection
function " )
• The following items when " CAL.noH (calculation dedicated mode) "
is selected in " A1. Calculation mode setting "
• " 10. Measurement Direction "
• " 11.Multiplier "
• Additional function settings (except for " 23. Power save
function " )
GT2-70-M-E
3-41
Basic Usage of the GT2-70 Series
Note
3-6 Useful Functions
MEMO
3
Basic Usage of the GT2-70 Series
3-42
GT2-70-M-E
Using Detection Modes
This chapter describes the detection mode and the setting method
of the GT2-70 Series.
4-1
Judging after the Detection Value is Stabilized ........ 4-4
4-3
Judging by the Maximum Value (Peak Hold) ......... 4-10
4-4
Judging by the Minimum Value (Bottom Hold) ....... 4-19
4-5
4
Judging with the Current Value ................................ 4-2
4-2
4
Judging with the Difference between Maximum
and Minimum Values.............................................. 4-28
4-6
Holding HIGH/LOW Output.................................... 4-32
GT2-70-M-E
4-1
4-1
Judging with the Current Value
The standard detection mode is used to perform judgment with the current value.
In the standard detection the displayed value (P.V. value) and criterion output are
always updated.
In addition, the displayed value (P.V. value) and criterion output can be held via
timing input.
Holding the Desired Value
When the external timing is input during the standard detection mode, desired timing
data (displayed value, criterion output) currently detected can be held.
4
■ Timing chart
Using Detection Modes
This section describes changes in the displayed value (P.V. value) and criterion
output by the external timing input.
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Display value
The displayed value (P.V. value) is held
while the External timing input is ON.
R.V. value
HIGH setting value
LOW setting value
Time
HIGH output
ON
OFF
GO output
ON
OFF
LOW output
ON
OFF
External timing input
ON
OFF
(1)
4-2
(2)
(3)
GT2-70-M-E
4-1 Judging with the Current Value
(1) While the external timing input is off, the displayed value (P.V. value) and criterion output are updated
according to the changes of the detection value (R.V. value) from the sensor head.
(2) The displayed value (P.V. value) and criterion output are held when the external timing is turned on
(on the rising edge.).
The displayed value (P.V. value) and criterion output do not change regardless of the changes of the
detection value (R.V. value) of the sensor head while they are currently held.
(3) When the external timing input is off, the hold state of the displayed value (P.V. value) and criterion
output is cancelled to start the update of the value again.
Reference
For the connection procedure of the external timing input, refer to
2 I/O Diagram " (page 7-8).
" 7-
4
■ Setting procedure
button for 2 seconds or more in
Setting item
Setting
Select " Skd (Standard detection) " and press the
/
button.
" 01. Detection Mode " (page 5-7)
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
Select "
the
(external timing input) " and press
/
button.
" 04. Timing Type " (page 5-11)
End the setting and return to the main screen.
GT2-70-M-E
4-3
Using Detection Modes
In the function setting mode (press and hold the
the main screen), set the following items.
4-2
Judging after the Detection Value is Stabilized
When you want to perform judgment only after starting judgment for a workpiece and
waiting for fluctuation of the value to end (in other words, when the value is
stabilized), set self-timing in the standard detection mode.
There are two methods to perform judgment after fluctuations end.
(1) Judging after a Certain Period of Time Has Passed (Delay Timer)
page 4-4
(2) Automatically Detecting the End of the Fluctuation
page 4-7
(1) Judging after a Certain Period of Time Has Passed (Delay Timer)
4
Using Detection Modes
When the delay timer is selected for internal (self-) timing setting during the standard
detection the data (displayed value and criterion output) can be held automatically
when the specified time (user-specified delay time) is elapsed after the detection
value exceeds (drops below) the arbitrary set level.
■ Timing chart
This section describes changes in the displayed value (P.V. value) and criterion
output according to the internal (self-) timing.
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Display value
R.V. value
Holds the P.V. value and the output result
HIGH setting value
P.V. value currently held
P.V. value previously held
LOW setting value
Rising edge self-timing detection point
Starts activating the delay time
Self-timing level
(Old) Output criterion
result hold period
HIGH output ON
Delay time
Time
(New) Output criterion result hold period Delay time
OFF
GO output ON
OFF
LOW output ON
OFF
(1)
(2)
(3)
(4)
(1) The last output result is held. The displayed value (P.V. value) is also the value that is previously held.
(2) When the detection value (R.V. value) exceeds the self-timing level, all outputs are turned off and the
delay timer starts. At this point, the displayed value (P.V. value) remains unchanged and keeps the
value that is previously held.
(3) The criterion result is output based on the detection value (R.V. value) when the set delay time is
elapsed. At this point, the criterion value is held and the displayed value (P.V. value) is updated to
the newly held value.
(4) When the detection value (R.V. value) drops below the self-timing level and exceeds it again, all
4-4
GT2-70-M-E
4-2 Judging after the Detection Value is Stabilized
outputs are turned off and the delay timer starts. The displayed value (P.V. value) remains
unchanged and keeps the value that has been held in step (3) until the delay time is elapsed.
Note
Reference
The setting of hysteresis is reflected on the self-timing level.
" 14. Hysteresis " (Page 5-22)
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
button for 2 seconds or more in
Setting
Select " Skd (Standard detection) " and press the
/
button.
" 01. Detection Mode " (page 5-7)
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
Select "
(rising edge) " or "
(falling edge) " and press the
/
button.
" 04. Timing Type " (page 5-11)
GT2-70-M-E
4-5
4
Using Detection Modes
If the detection value (R.V. value) drops below
the self-timing level before the delay time has
elapsed, the data cannot be held and the error
shown to the right appears.
" A2 Error Messages " (page A-5)
In this case, the HIGH and LOW outputs will be on while the GO
output is off.
Press the SET button or perform reset input to release the error
state. Also when the detection value (R.V. value) exceeds the timing
level again, the error is canceled.
When the power is turned on or the error display
is reset, the criterion standby display shown to
the right is displayed until the first P.V. value is Criterion standby display
fixed (when the P.V. value display is set) and all
outputs are turned off.
4-2 Judging after the Detection Value is Stabilized
Setting item
Setting
Set the self-timing level to a desired value and
press the
/
button.
" 05. Self-timing Level " (page 5-12)
Select " k.d (Delay timer) " and press the
button.
/
" 06. Self Timing Delay Types " (page 5-13)
Set the delay timer to a desired value and press
4
the
/
button.
Using Detection Modes
" 07. User-specified Delay Time " (page 5-14)
End the setting and return to the main screen.
4-6
GT2-70-M-E
4-2 Judging after the Detection Value is Stabilized
(2) Automatically Detecting the End of the Fluctuation
When the static hold is selected for internal (self-) timing setting during the standard
detection the data (displayed value and criterion output) is automatically held when the
detection value is stable within the specified stability width after the detected value
exceeds the arbitrary set level (self-timing level).
■ Timing chart
This section describes changes in the displayed value (P.V. value) and criterion
output according to the internal (self-) timing (static hold).
In the following example, " N.O " is set for " 12. Output mode " .
4
" 12. Output Mode " (page 5-20)
R.V. value
Holds the P.V. value and the output result
HIGH setting value
Stability criterion reference width P.V. value currently held
P.V. value previously held
Response time
LOW setting value
Rising edge self-timing detection point
Start sampling
Self-timing level
(Old) Output criterion
result hold period
HIGH output ON
Sampling period
Time
(New) Output criterion result hold period Sampling period
OFF
GO output ON
OFF
LOW output ON
OFF
(1)
(2)
(3)
(4)
(1) The last output result is held. The displayed value (P.V. value) is also the value that is previously held.
(2) When the detection value (R.V. value) exceeds the self-timing level, all outputs are turned off and the
sampling starts. At this point, the displayed value (P.V. value) remains unchanged and keeps the
value that is previously held.
(3) The criterion result is output based on the detection value (R.V. value) when the response time*
elapses after the detection value (R.V. value) is stable within the stability criterion reference width
during the sampling period. At this point, the criterion value is held and the displayed value (P.V.
value) is updated to the newly held value.
(4) When the detection value (R.V. value) drops below the self-timing level and exceeds it again, all
outputs are turned off and the sampling starts. The displayed value (P.V. value) remains unchanged
and keeps the value that has been held in step (3) until the value is updated again.
* For details on the response time, refer to " 03. Response Time " (page 5-9).
Note
GT2-70-M-E
If the detection value (R.V. value) drops below the
self-timing level before the detection value is
stabilized, the error shown to the right appears.
4-7
Using Detection Modes
Display value
4-2 Judging after the Detection Value is Stabilized
" A2 Error Messages " (page A-5)
In this case, the HIGH and LOW outputs will be on while the GO
output is off.
Press the SET button or perform reset input to release the error
state. Also when the detection value (R.V. value) exceeds the timing
level again, the error is canceled.
When the power is turned on or the error
display is reset, the criterion standby display
shown to the right is displayed until the first P.V.
Criterion standby
display
value is fixed (when the P.V. value display is set)
and all outputs are turned off.
4
Using Detection Modes
Reference
• When the value of the stability criterion reference width is small, the sampling
continues until the detection value is stabilized. When the displayed value is
not held (cannot obtain the displayed value) even after a long time, increase
the stability criterion reference width or extend the response time.
" 03. Response Time " (page 5-9)
• The setting of hysteresis is reflected on the self-timing level.
" 14. Hysteresis " (Page 5-22)
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
button for 2 seconds or more in
Setting
Select " Skd (Standard detection) " and press the
/
button.
" 01. Detection Mode " (page 5-7)
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
Select "
(rising edge) " or "
(falling edge) " and press the
/
button.
" 04. Timing Type " (page 5-11)
Select the self-timing level to a desired value
and press the
/
button.
" 05. Self-timing Level " (page 5-12)
4-8
GT2-70-M-E
4-2 Judging after the Detection Value is Stabilized
Setting item
Setting
Select " skb.d (static hold) " and press the
/
button.
" 06. Self Timing Delay Types " (page 5-13)
A. When setting with the specified stability width
Setting item
Setting
Select " defalk (default) " and press the
button.
/
4
" 08. Static Hold Delay Stability " (page 5-15)
B. When setting the stability width manually
Setting item
Setting
Select " user (User) " and press the
button.
/
" 08. Static Hold Delay Stability " (page 5-15)
Set the stability width to a desired value and
press the
/
button.
" 09. Static Hold Delay Stability Width " (page 5-16)
End the setting and return to the main screen.
GT2-70-M-E
4-9
Using Detection Modes
End the setting and return to the main screen.
4-3
Judging by the Maximum Value (Peak Hold)
When the peak hold detection mode is used, the peak value in the period specified
with the external input or internal input can be taken as the criterion value.
The following setting methods are available in the peak hold detection mode.
Method to specify
the sampling period
Timing to update the hold value
(1) Specifying the Sampling Period from At the end of the sampling period
External Input
Regularly during the sampling period
(2) Using without the Timing Input
4
Note
Reference
page
4-10
4-13
At the end of the sampling period
4-15
Regularly during the sampling period
4-17
Using Detection Modes
When the power is turned on or the error display
is reset*, the criterion standby display occurs
until the first P.V. value is fixed and all outputs
Criterion standby
are turned off.
display
* You can reset the error display by using any of
the following methods.
• Enter RESET from the external device.
• Press the [SET] button (when the error is displayed).
(1) Specifying the Sampling Period from External Input
When the external input is entered during the peak hold detection mode, data
(displayed value, criterion output) of a desired sampling period currently detected
can be held.
The update timing of the displayed value (P.V value) to be held and that of the
criterion output vary depending on the setting of the hold update method.
Updating the peak value (P.V. value) and criterion output at the end of the
sampling period
When the hold update method is set to " tim (timing input) " , the display and the
criterion output of the peak value (P.V. value) to be held are updated by the external
timing input.
■ Timing chart
This section describes the changes in the display value (P.V. value) and criterion
output by the external input when the detection mode is set to " P-H (peak hold) " and
the hold update method is set to " tim (timing input) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
4-10
GT2-70-M-E
4-3 Judging by the Maximum Value (Peak Hold)
Display value
Sampling period A
peak value
HIGH setting value
Sampling period B
peak value
R.V. value
P.V. value currently held
Sampling period C
peak value
LOW setting value
Time
Sampling period A
Sampling period B
Sampling period C
4
ON
External timing
OFF
input
ON
HIGH output OFF
ON
LOW output OFF
(1)
(2)
(3)
(4)
(5)
(6)
(1) The maximum value (peak value) of the detection value (R.V. value) is held while the external timing
input is off (sampling period A ).
(2) At the rising edge of the external timing input (end of the sampling period A ), the peak value held
during the sampling period is displayed as the P.V. value. The resulting output (in this case, GO
criterion output) will turn on based on the peak value.
(3) The maximum value (peak value) of the detection value (R.V. value) is held while the external timing
input is off (sampling period B ).
(4) At the rising edge of the external timing input (end of the sampling period B ), the peak value held
during the sampling period is displayed as the P.V. value. The resulting output (in this case, HIGH
criterion output) will turn on based on the peak value.
(5) The maximum value (peak value) of the detection value (R.V. value) is held while the external timing
input is off (sampling period C ).
(6) At the rising edge of the external timing input (end of the sampling period C ), the peak value held
during the sampling period is displayed as the P.V. value. The resulting output (in this case, GO
criterion output) will turn on based on the peak value.
GT2-70-M-E
4-11
Using Detection Modes
ON
GO output OFF
4-3 Judging by the Maximum Value (Peak Hold)
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
button for 2 seconds or more in
Setting item
Setting
Select " P-H (peak hold) " and press the
button.
/
" 01. Detection Mode " (page 5-7)
Select "
4
(timing input) " and press the
/
button.
" 02. Hold Update Method " (page 5-8)
Using Detection Modes
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
Select "
the
(external timing input) " and press
/
button.
" 04. Timing Type " (page 5-11)
End the setting and return to the main screen.
4-12
GT2-70-M-E
4-3 Judging by the Maximum Value (Peak Hold)
Updating the peak value (P.V. value) regularly during the sampling period
When the hold update method is set to " rEAL (regular update) " , the display of the
peak value (P.V. value) and criterion output are updated regularly.
■ Timing chart
This section describes the changes in the display value (P.V. value) when the
detection mode is set to " P-H (peak hold) " and the hold update method is set to " rEAL
(regular update) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Sampling period B
peak value
R.V. value
4
P.V. value currently held
Sampling period C peak value
LOW setting value
Time
Sampling period A
Sampling period B
Sampling period C
External timing
ON
input OFF
ON
HIGH output OFF
ON
GO output OFF
ON
LOW output OFF
(1)
(2)
(3)
(4)
(5)
(6)
(1) The maximum value (peak value) of the detection value (R.V. value) when the external timing input
is off (sampling period A ) is always updated and displayed as the P.V. value.
The resulting output (in this case, GO criterion output) will turn on based on the peak value that is
always updated.
(2) At the rising edge of the external timing input (end of the sampling period A ), the peak value and
criterion output detected during the sampling period A are held.
(3) At the falling edge of the external timing input, the peak value is reset. The maximum value (peak
value) of the detection value (R.V. value) when the external timing input is off (sampling period B )
is always updated and displayed as the P.V. value.
The resulting output (in this case, GO criterion output) will turn on based on the peak value that is
always updated.
(4) At the rising edge of the external timing input (end of the sampling period B ), the peak value and
criterion output detected during the sampling period B are held.
(5) At the falling edge of the external timing input, the peak value is reset. The maximum value (peak
B
value) of the detection value (R.V. value) when the external timing input is off (sampling period C )
is always updated and displayed as the P.V. value.
The resulting output (in this case, GO criterion output) will turn on based on the peak value that is
always updated.
B
(6) At the rising edge the external timing input (end of the sampling period C ), the peak value and
B
criterion output detected during the sampling period C are held.
GT2-70-M-E
4-13
Using Detection Modes
Display value
Sampling period A
peak value
HIGH setting value
4-3 Judging by the Maximum Value (Peak Hold)
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
button for 2 seconds or more in
Setting item
Setting
Select " P-H (peak hold) " and press the
button.
/
" 01. Detection Mode " (page 5-7)
Select " rEAL (regular update) " and press the
4
/
button.
" 02. Hold Update Method " (page 5-8)
Using Detection Modes
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
Select "
the
(external timing input) " and press
/
button.
" 04. Timing Type " (page 5-11)
End the setting and return to the main screen.
4-14
GT2-70-M-E
4-3 Judging by the Maximum Value (Peak Hold)
(2) Using without the Timing Input
When internal (self) timing is selected during the peak hold detection mode, the
sampling period is set automatically based on the desired self-timing level and the
data (displayed value and criterion output) can be held.
The update timing of the displayed value (P.V. value) to be held and that of the
criterion output vary depending on the setting of the hold update method.
Updating the peak value (P.V. value) and criterion output at the end of the
sampling period
■ Timing chart
This section describes the changes in the displayed value (P.V. value) and criterion
output by the internal (self) timing input when the detection mode is set to " P-H (peak
hold) " and the hold update method is set to " tim (timing input) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Display value
Sampling period A
peak value
HIGH setting value
R.V. value
P.V. value currently held
P.V. value previously held
LOW setting value
Rising edge self-timing detection point
Holds the P.V. value and
the output criterion result
Self-timing level
Sampling period A
(Old) Output criterion
result hold period
HIGH output ON
Time
(New) Output criterion result hold period Sampling period B
OFF
GO output ON
OFF
LOW output ON
OFF
(1)
(2)
(3)
(4)
(1) The last output result is held. The displayed value (P.V. value) is also the value that is previously held.
(2) When the detection value (R.V. value) exceeds the self-timing level, all outputs are turned off and the
maximum detected value (peak value) of the sampling period is held. The displayed value remains
unchanged at this point and keeps the value that is previously held.
(3) If the measured value drops below the self-timing level, the resulting output will turn on based on the
peak value in the sampling period (In this case the GO criterion output will turn on). At this point, the
criterion output is held and the displayed value (P.V. value) is updated to the value (peak value of
GT2-70-M-E
4-15
4
Using Detection Modes
When the hold update method is set to " tim (timing input) " , the display and the
criterion output of the peak value (P.V. value) to be held are updated based on the
self-timing level.
4-3 Judging by the Maximum Value (Peak Hold)
the sampling period A ) that is newly held.
(4) Once the measured value drops below the self-timing level and rises above the self-timing level
again, all outputs turn off and the new peak value will be detected during the sampling period B .
The displayed value (P.V. value) remains unchanged and keeps the value that has been held in step
(3) until the detection value (R.V. value) drops below the self-timing level again.
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
4
button for 2 seconds or more in
Setting
Select " P-H (peak hold) " and press the
button.
/
Using Detection Modes
" 01. Detection Mode " (page 5-7)
Select "
/
(timing input) " and press the
button.
" 02. Hold Update Method " (page 5-8)
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
Select "
/
(rising edge) " and press the
button.
" 04. Timing Type " (page 5-11)
Set the self-timing level to a desired level and
press the
/
button.
" 05. Self-timing Level " (page 5-12)
End the setting and return to the main screen.
4-16
GT2-70-M-E
4-3 Judging by the Maximum Value (Peak Hold)
Updating the peak value (P.V. value) regularly during the sampling period
When the hold update method is set to " rEAL (regular update) " , the display of the
peak value (P.V. value) and criterion output are updated regularly.
■ Timing chart
This section describes the changes in the display value (P.V. value) when the
detection mode is set to " P-H (peak hold) " and the hold update method is set to " rEAL
(regular update) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Display value
Sampling period A
peak value
4
P.V. value currently held
P.V. value
previously held
R.V. value
LOW setting value
Rising edge self-timing detection point
Holds the P.V. value and
the output criterion result
Self-timing level
(Old) Output criterion
result hold period
Sampling period A
(New) Output criterion result hold period
Time
Sampling period B
HIGH output ON
OFF
GO output ON
OFF
LOW output ON
OFF
(1)
(2)
(3)
(4)
(1) The last output result is held. The displayed value (P.V. value) is also the value previously held.
(2) When the detection value (R.V. value) exceeds the self-timing level, the P.V. values that are held are
cleared and the maximum detected value (peak value) of the sampling period is always updated and
displayed. The resulting output will turn on based on the updated P.V. value.
(3) When the detection value (R.V. value) drops below the self-timing level, the resulting output will turn
on based on the peak value in the sampling period A , and the peak value and the displayed value
(P.V. value) are held.
(4) Once the detection value (R.V. value) drops below the self-timing level and rises above the selftiming level again, the P.V. values that are held are cleared and the maximum detected value (peak
value) of the sampling period B is always updated and displayed. The resulting output will turn on
based on the updated P.V. value.
GT2-70-M-E
4-17
Using Detection Modes
HIGH setting value
4-3 Judging by the Maximum Value (Peak Hold)
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
button for 2 seconds or more in
Setting
Select " P-H (peak hold) " and press the
button.
/
" 01. Detection Mode " (page 5-7)
Select " rEAL (regular update) " and press the
4
/
button.
" 02. Hold Update Method " (page 5-8)
Using Detection Modes
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
Select "
/
(rising edge) " and press the
button.
" 04. Timing Type " (page 5-11)
Set the self-timing level to a desired level and
press the
/
button.
" 05. Self-timing Level " (page 5-12)
End the setting and return to the main screen.
4-18
GT2-70-M-E
4-4
Judging by the Minimum Value (Bottom Hold)
When the bottom hold detection mode is used, the smallest value in the period
specified with the external input or internal input can be taken as the criterion value.
The following setting methods are available in the bottom hold detection mode.
Method to specify
the sampling period
Timing to update the hold value
(1) Specifying the Sampling Period from At the end of the sampling period
External Input
Regularly during the sampling period
(2) Using without the Timing Input
Note
Reference
page
4-19
4-22
At the end of the sampling period
4-24
Regularly during the sampling period
4-26
(1) Specifying the Sampling Period from External Input
When the external input is entered during the bottom hold detection mode, the data
(displayed value, criterion output) of a desired sampling period currently detected
can be held.
The update timing of the displayed value (P.V. value) to be held and that of the
criterion output vary depending on the setting of the hold update method.
Updating the bottom value (P.V. value) and criterion output at the end of
the sampling period
When the hold update method is set to " tim (timing input) " , the display timing and the
criterion output of the bottom value (P.V. value) to be held are updated by the
external timing input.
■ Timing chart
This section describes the changes in the displayed value (P.V. value) and criterion
output by the external timing input when the detection mode is set to " b-H (bottom
hold) " and the hold update method is set to " tim (timing input) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
GT2-70-M-E
4-19
4
Using Detection Modes
When the power is turned on or the reset
operation is performed*, the criterion standby
display appears until the first P.V. value is fixed, Criterion standby display
and all the outputs are turned off.
* You can perform reset by using any of the following methods.
• Enter RESET from an external device.
• Press the [SET] button (when an error is displayed).
4-4 Judging by the Minimum Value (Bottom Hold)
Display value
R.V. value
Sampling period B
bottom value
P.V. value currently held
HIGH setting value
LOW setting value
Sampling period A
bottom value
Sampling period C
bottom value
Time
Sampling period A
Sampling period B
Sampling period C
ON
4
External timing OFF
input
ON
HIGH output OFF
ON
GO output OFF
Using Detection Modes
ON
LOW output OFF
(1)
(2)
(3)
(4)
(5)
(6)
(1) The minimum value (bottom value) of the detection value (R.V. value) is held while the external timing
input is off (sampling period A ).
(2) At the rising edge of the external timing input (end of the sampling period A ), the bottom value held
during the sampling period is displayed as the P.V. value. The resulting output (in this case, GO
criterion output) will turn on based on the bottom value.
(3) The minimum value (bottom value) of the detection value (R.V. value) is held while the external timing
input is off (sampling period B ).
(4) At the rising edge of the external timing input (end of the sampling period B ), the bottom value held
during the sampling period is displayed as the P.V. value. The resulting output (in this case, GO
criterion output) will turn on based on the bottom value.
(5) The minimum value (bottom value) of the detection value (R.V. value) is held while the external timing
input is off (sampling period C ).
(6) At the rising edge of the external timing input (end of the sampling period C ), the bottom value held
during the sampling period is displayed as the P.V. value. The resulting output (in this case, LOW
criterion output) will turn on based on the bottom value.
4-20
GT2-70-M-E
4-4 Judging by the Minimum Value (Bottom Hold)
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
button for 2 seconds or more in
Setting item
Setting
Select " b-H (bottom hold) " and press the
/
button.
" 01. Detection Mode " (page 5-7)
Select "
(regular update) " and press the
/
4
button.
" 02. Hold Update Method " (page 5-8)
/
button.
" 03. Response Time " (page 5-9)
Select "
the
(external timing input) " and press
/
button.
" 04. Timing Type " (page 5-11)
End the setting and return to the main screen.
GT2-70-M-E
4-21
Using Detection Modes
Select a desired response time and press the
4-4 Judging by the Minimum Value (Bottom Hold)
Updating the bottom value (P.V. value) regularly during the sampling period
When the hold update method is set to " rEAL (regular update) " , the display of the
bottom value (P.V. value) and criterion output are updated regularly.
■ Timing chart
This section describes the changes in the display value (P.V. value) when the
detection mode is set to " b-H (bottom hold) " and the hold update method is set to
" rEAL (regular update) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
4
Display value
Sampling period A
bottom value
Using Detection Modes
HIGH setting value
R.V. value
P.V. value currently held
Sampling period C
bottom value
LOW setting value
Sampling period B
peak value
Time
Sampling period A
Sampling period C
Sampling period B
External timing
ON
input OFF
ON
HIGH output OFF
ON
GO output OFF
ON
LOW output OFF
(1)
(2)
(3)
(4)
(5)
(6)
(1) The minimum value (bottom value) of the detection value (R.V. value) when the external timing input
is off (sampling period A ) is always updated and displayed as the P.V. value.
The resulting output (in this case, GO criterion output) will turn on based on the bottom value that is
always updated.
(2) At the rising edge of the external timing input (end of the sampling period A ), the bottom value and
criterion output detected during the sampling period A are held.
(3) At the falling edge of the external timing input, the bottom value is reset. The minimum value (bottom
B
value) of the detection value (R.V. value) when the external timing input is off (sampling period A )
is always updated and displayed as the P.V. value.
The resulting output (in this case, GO criterion output, then Low criterion output) will turn on based
on the bottom value that is always updated.
B
(4) At the rising edge of the external timing input (end of the sampling period A ), the criterion output
B
value and criterion output detected during the sampling period A are held.
(5) The minimum value (bottom value) of the detection value (R.V. value) when the external timing input
A
B
is off (sampling period C ) is always updated and displayed as the P.V. value.
The resulting output (in this case, GO criterion output) will turn on based on the bottom value that is
always updated.
A
B
(6) At the rising edge of the external timing input (end of the sampling period C ), the bottom value and
A
B
criterion output detected during the sampling period C are held.
4-22
GT2-70-M-E
4-4 Judging by the Minimum Value (Bottom Hold)
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
button for 2 seconds or more in
Setting item
Setting
Select " b-H (bottom hold) " and press the
/
button.
" 01. Detection Mode " (page 5-7)
Select " rEAL (regular update) " and press the
/
4
button.
" 02. Hold Update Method " (page 5-8)
/
button.
" 03. Response Time " (page 5-9)
Select "
the
(external timing input) " and press
/
button.
" 04. Timing Type " (page 5-11)
End the setting and return to the main screen.
GT2-70-M-E
4-23
Using Detection Modes
Select a desired response time and press the
4-4 Judging by the Minimum Value (Bottom Hold)
(2) Using without the Timing Input
When internal (self) timing is selected during the bottom hold detection mode, the
sampling period is set automatically based on the desired self-timing level and the
data (displayed value and criterion output) can be held.
The update timing of the displayed value (P.V value) to be held and that of the
criterion output vary depending on the setting of the hold update method.
4
Updating the bottom value (P.V. value) and criterion output at the end of
the sampling period
Using Detection Modes
When the hold update method is set to " tim (timing input) " , the display and the
criterion output of the bottom value (P.V. value) to be held are updated based on the
self-timing level.
■ Timing chart
This section describes the changes in the displayed value (P.V. value) and criterion
output by the internal (self) timing input when the detection mode is set to " b-H
(bottom hold) " and the hold update method is set to " tim (timing input) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Display value
Falling edge self-timing detection point
Self-timing level
P.V. value previously held
HIGH setting value
R.V. value
Holds the P.V. value and
the output criterion result
LOW setting value
Sampling period A bottom value
(Old) Output criterion
result hold period
Sampling period A
P.V. value currently held
Time
(New) Output criterion result hold period Sampling period B
HIGH output ON
OFF
GO output ON
OFF
LOW output ON
OFF
(1)
(2)
(3)
(4)
(1) The last output result is held. The displayed value (P.V. value) is also the value that is previously held.
(2) When the detected value (R.V. value) drops below the self-timing level, all outputs are turned off and
the minimum detected value (bottom value) of the sampling period is held. The displayed value (P.V.
value) remains unchanged at this point and keeps the value that is previously held.
(3) If the measured value exceeds the self-timing level, the resulting output will turn on based on the
bottom value in the sampling period (In this case the LOW criterion output will turn on). At this point,
4-24
GT2-70-M-E
4-4 Judging by the Minimum Value (Bottom Hold)
the criterion output is held and the displayed value (P.V. value) is updated to the value (bottom value
of the sampling period A ) that is newly held.
(4) Once the measured value rises above the self-timing level and drops below the self-timing level
B
again, all outputs turn off and the new bottom value will be detected during the sampling period A .
The displayed value (P.V. value) remains unchanged and keeps the value that has been held in step
(3) until the detected value (R.V. value) rises above the self-timing level again.
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
button for 2 seconds or more in
Setting
4
Select " b-H (bottom hold) " and press the
/
button.
Select "
/
(timing input) " and press the
button.
" 02. Hold Update Method " (page 5-8)
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
Select "
/
(falling edge) " and press the
button.
" 04. Timing Type " (page 5-11)
Set the self-timing level to a desired level and
press the
/
button.
" 05. Self-timing Level " (page 5-12)
End the setting and return to the main screen.
GT2-70-M-E
4-25
Using Detection Modes
" 01. Detection Mode " (page 5-7)
4-4 Judging by the Minimum Value (Bottom Hold)
Updating the bottom value (P.V. value) regularly during the sampling period
When the hold update method is set to " rEAL (regular update) " , the display of the
bottom value (P.V. value) and criterion output are updated regularly.
■ Timing chart
This section describes the changes in the display value (P.V. value) when the
detection mode is set to " b-H (bottom hold) " and the hold update method is set to
" rEAL (regular update) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
4
Display value
Falling edge self-timing detection point
Using Detection Modes
Self-timing level
HIGH setting value
R.V. value
LOW setting value
Holds the P.V. value and
the output criterion result
P.V. value
previously held
Sampling period A bottom value
(Old) Output criterion
result hold period
Sampling period A
P.V. value currently held
Time
(New) Output criterion result hold period Sampling period
B
HIGH output ON
OFF
GO output ON
OFF
LOW output ON
OFF
(1)
(2)
(3)
(4)
(1) The last output result is held. The displayed value (P.V. value) is also the value previously held.
(2) When the detected value (R.V. value) exceeds the self-timing level, the P.V. values that are held are
cleared and the minimum detected value (bottom value) of the sampling period A is always
updated and displayed. The resulting output will turn on based on the updated P.V. value.
(3) If the measured value exceeds the self-timing level, the resulting output will turn on based on the
bottom value in the sampling period A and the displayed value (P.V. value) is held.
(4) Once the measured value rises above the self-timing level and drops below the self-timing level
again, the P.V. values that are held are cleared and the minimum detected value (bottom value) of
B
the sampling period A is always updated and displayed. The resulting output will turn on based on
the updated P.V. value.
4-26
GT2-70-M-E
4-4 Judging by the Minimum Value (Bottom Hold)
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
button for 2 seconds or more in
Setting
Select " b-H (bottom hold) " and press the
/
button.
" 01. Detection Mode " (page 5-7)
Select " rEAL (regular update) " and press the
/
4
button.
" 02. Hold Update Method " (page 5-8)
/
button.
" 03. Response Time " (page 5-9)
Select "
/
(falling edge) " and press the
button.
" 04. Timing Type " (page 5-11)
Set the self-timing level to a desired level and
press the
/
button.
" 05. Self-timing Level " (page 5-12)
End the setting and return to the main screen.
GT2-70-M-E
4-27
Using Detection Modes
Select a desired response time and press the
4-5
Judging with the Difference between Maximum and Minimum Values
When the Peak-to-Peak hold detection mode is used, the difference between the
peak value and the bottom value specified with the external timing input can be
taken as the criterion value.
The following setting methods are available in the peak-to-peak hold detection
mode.
Method to specify
the sampling period
Specifying the Sampling Period from
External Input
4
Timing to update the hold value
Reference
page
At the end of the sampling period
4-28
Regularly during the sampling period
4-30
* The internal (self) timing function cannot be set during the peak-to-peak detection
mode.
Note
Using Detection Modes
When the power is turned on or the reset
operation is performed*, the criterion standby
display appears until the first P.V. value is fixed Criterion standby display
and all the outputs are turned off.
* You can perform reset by using any of the following methods.
• Enter RESET from an external device
• Press the [SET] button (when an error is displayed)
Specifying the Sampling Period from External Input
When the external input is entered during the bottom hold detection mode, data
(displayed value, criterion output) of a desired timing currently detected can be held.
The update timing of the displayed value (P.V value) to be held and that of the
criterion output vary depending on the setting of the hold update method.
Updating the peak-to-peak value (P.V. value) and criterion output at the
end of the sampling period
When the hold update method is set to " tim (timing input) " , the display of the display
and the criterion output of the peak-to-peak value (P.V. value) to be held are updated
by the external timing input.
■ Timing chart
This section describes the changes in the displayed value (P.V. value) and criterion
output by the external input when the detection mode is set to " P-P (peak-to-peak) "
and the hold update method is set to " tim (timing input) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
4-28
GT2-70-M-E
4-5 Judging with the Difference between Maximum and Minimum Values
Display value
Sampling period A peak value
(Peak value)-(Bottom value)
is the P.V. value.
R.V. value
Sampling period B
peak value
Hold value currently held
HIGH setting value
Sampling period A
bottom value
Sampling period B
bottom value
LOW setting value
Time
Sampling period A
Sampling period B
External ON
timing input OFF
ON
4
HIGH output OFF
ON
GO output OFF
ON
LOW output OFF
(2)
(3)
(4)
(1) The maximum value (peak value) and the minimum value (bottom value) of the detection value (R.V.
value) are held while the external timing input is off (sampling period A ).
(2) At the rising edge of the external timing input (end of the sampling period), the difference between
the peak value and the bottom value held during the sampling period A is calculated and displayed
as the P.V. value. The resulting output (in this case, HIGH criterion output) will turn on based on the
value of (peak value - bottom value).
(3) The maximum value (peak value) and the minimum value (bottom value) of the detection value (R.V.
B
value) are held while the external timing input is off (sampling period A ).
(4) At the rising edge of the external timing input (end of the sampling period), the difference between
B
the peak value and the bottom value held during the sampling period A is calculated and displayed
as the P.V. value. The resulting output (in this case, GO criterion output) will turn on based on the
value of (peak value - bottom value).
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
button for 2 seconds or more in
Setting
Select " P-P (peak-to-peak) " and press the
/
button.
" 01. Detection Mode " (page 5-7)
Select "
/
(timing input) " and press the
button.
" 02. Hold Update Method " (page 5-8)
GT2-70-M-E
4-29
Using Detection Modes
(1)
4-5 Judging with the Difference between Maximum and Minimum Values
Setting item
Setting
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
End the setting and return to the main screen.
4
Updating peak-to-peak value (P.V. value) regularly during the sampling period
Using Detection Modes
When the hold update method is set to " rEAL (regular update) " , the display of the
peak-to-peak value (P.V. value) and criterion output are updated regularly.
■ Timing chart
This section describes the changes in the display value (P.V value) when the
detection mode is set to " P-P (peak-to-peak) " and the hold update method is set to
" rEAL (regular update) " .
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Display value
Sampling period A peak value
R.V. value
HIGH setting value
Sampling period B
peak value
(Peak value) - (Bottom value)
is the P.V. value
Sampling period B
bottom value
Sampling period A
bottom value
LOW setting value
Time
Sampling period A
Sampling period B
External timing
ON
input OFF
ON
HIGH output OFF
ON
GO output OFF
ON
LOW output OFF
(1)
(2)
(3)
(4)
(1) The P.V. value is cleared when the external timing input is turned off. The difference between the
maximum detected value (peak value) and the minimum detected value (bottom value) in the
sampling period A is always calculated and the display is updated as the P.V. value. The criterion
value is output based on the updated P.V. value.
(2) At the rising edge of the external timing input (end of the sampling period), the maximum value of
the difference between the peak value and the bottom value in the sampling period A is held and
displayed , and the criterion result is also held (in this case, HIGH criterion output ).
4-30
GT2-70-M-E
4-5 Judging with the Difference between Maximum and Minimum Values
(3) The P.V. value is cleared when the external timing input is turned off. The difference between the
maximum detected value (peak value) and the minimum detected value (bottom value) in the
B
sampling period A is always calculated and the display is updated as the P.V. value. The criterion
value is output based on the updated P.V. value.
(4) At the rising edge of the external timing input (end of the sampling period), the maximum value of
the difference between the peak value and the bottom value in the sampling period is held and
displayed as it is, and the criterion result (GO criterion output in this case) is also held.
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
button for 2 seconds or more in
4
Setting
Select " P-P (peak-to-peak) " and press the
button.
" 01. Detection Mode " (page 5-7)
Select " rEAL (regular update) " and press the
/
button.
" 02. Hold Update Method " (page 5-8)
Select a desired response time and press the
/
button.
" 03. Response Time " (page 5-9)
End the setting and return to the main screen.
GT2-70-M-E
4-31
Using Detection Modes
/
4-6
Holding HIGH/LOW Output
When the NG hold detection mode is used, the output can be held if the HIGH or
LOW output turns on during the period specified by the external timing (while the
external timing input is off).
With this function, it can be judged whether the HIGH or LOW output turns on during
the continuous detection by watching the subsequent criterion outputs with the
timing input turned off at the start of the detection and turned on at the end of the
detection.
Timing Chart in the NG Hold Detection Mode
4
When the external timing is input during the NG hold detection mode, the desired
timing data (displayed value, criterion output) currently detected can be held.
Using Detection Modes
■ When the HIGH/LOW output does not turn on during the output criterion period
This section describes the changes in the display value and criterion output when
the GO criterion is held.
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Display value
Holds the P.V. value and the GO criterion output
HIGH setting value
P.V. value currently held
P.V. value
previously held
R.V. value
LOW setting value
Time
(Old) Output criterion result hold period
Output criterion period
(New) Output criterion result hold period
External timing input ON
OFF
HIGH output ON
OFF
ON
GO output OFF
LOW output ON
OFF
(1)
(2)
(3)
(4)
(1) The last output result is held while the external input is on the displayed value (P.V. value) is also the
value that is previously held.
(2) The HIGH/LOW criterion outputs are monitored while the external timing input is off. The hold state
of the displayed value (P.V. value) is canceled and displayed according to the detection value (R.V.
value) of the sensor head.
(3) When neither the HIGH nor LOW outputs are on during the output criterion period (when the external
timing input is off), the GO criterion output is held. The value when the external timing input starts is
held for the displayed value (P.V. value).
(4) The hold status of the criterion output and displayed value (P.V. value) is canceled when the next
external timing input turns off.
4-32
GT2-70-M-E
4-6 Holding HIGH/LOW Output
■ When the HIGH output turns on during the output criterion period
This section describes the changes in the displayed value and criterion output when
the HIGH criterion is held.
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Holds the HIGH criterion output
Display value
Holds the P.V. value
P.V. value currently held
HIGH setting value
P.V. value
previously held
R.V. value
4
LOW setting value
(New) Output criterion result hold period
(3)
(4)
External timing input ON
OFF
HIGH output ON
OFF
ON
GO output OFF
LOW output ON
OFF
(1)
(2)
(5)
(1) The last output result is held while the external input is on the displayed value (P.V. value) is also the
value that is previously held.
(2) The HIGH/LOW criterion outputs are monitored while the external timing input is off. The hold state
of the displayed value (P.V. value) is canceled and the detection value (R.V. value) is displayed.
(3) When the HIGH criterion is detected during the output criterion period (when the external timing input
is off), the HIGH criterion output is held. Once the criterion output is held, the criterion output no
longer changes along with the changes of the detection value (R.V. value) even during the output
criterion period.
(4) The HIGH criterion is detected during the output criterion period (when the output timing input is off),
so the HIGH criterion output is held even after the output criterion period is finished. The value when
the external timing input starts is held for the displayed value (P.V. value). The displayed value (P.V.
value) is kept held (in this example, value within the GO range) until the external input turns off next
time and the HIGH criterion output is held.
(5) The hold status of the criterion output and displayed value (P.V. value) is canceled when the next
external timing input turns off.
Reference
GT2-70-M-E
The hold status of the HIGH criterion output is canceled with the reset
input.
" Reset Input (Resetting Internal Values) " (page 3-34)
4-33
Using Detection Modes
Time
Output criterion period
(Old) Output criterion result hold period
4-6 Holding HIGH/LOW Output
■ When the LOW output turns on during the output criterion period
This section describes the changes in the displayed value and criterion output when
the LOW criterion is held.
In the following example, " N.O " is set for " 12. Output mode " .
" 12. Output Mode " (page 5-20)
Holds the LOW criterion output
Display value
Holds the P.V. value
P.V. value currently held
HIGH setting value
4
R.V. value
P.V. value
previously held
LOW setting value
Using Detection Modes
Time
(Old) Output criterion result hold period
Output criterion period
(New) Output criterion result hold period
External timing input ON
OFF
ON
HIGH output OFF
ON
GO output OFF
ON
LOW output OFF
(1)
(2)
(3)
(4)
(5)
(1) The last output result is held while the external input is on the displayed value (P.V. value) is also the
value that is previously held.
(2) The HIGH/LOW criterion outputs are monitored while the external timing input is off. The hold state
of the displayed value (P.V. value) is canceled and displayed according to the detection value (R.V.
value) of the sensor head.
(3) When the LOW criterion is detected during the output criterion period (when the external timing input
is off), the LOW criterion output is held. Once the criterion output is held, the criterion output does
not change according to the changes of the detection value (R.V. value) even if it is during the output
criterion period.
(4) The LOW criterion is detected during the output criterion period (when the output timing input is off),
so the LOW criterion output is held even after the output criterion period is finished. The value when
the external timing input starts is held for the displayed value (P.V. value).
(5) The hold status of the criterion output and displayed value (P.V. value) is canceled when the next
external timing input turns off.
Reference
4-34
The hold status of the LOW criterion output is canceled with the reset
input.
" Reset Input (Resetting Internal Values) " (page 3-34)
GT2-70-M-E
4-6 Holding HIGH/LOW Output
■ Setting procedure
In the function setting mode (press and hold the
the main screen), set the following items.
Setting item
button for 2 seconds or more in
Setting
Select " nG-H (NG hold detection) " and press the
/
button.
" 01. Detection Mode " (page 5-7)
Select a desired response time and press the
/
4
button.
" 03. Response Time " (page 5-9)
GT2-70-M-E
4-35
Using Detection Modes
End the setting and return to the main screen.
4-6 Holding HIGH/LOW Output
MEMO
4
Using Detection Modes
4-36
GT2-70-M-E
Setting Various Functions
This chapter describes various detection functions of the GT2-70
Series.
5-1
Function Setting Mode ............................................. 5-6
5-3
Basic Setting Mode ................................................ 5-17
5-4
Additional Function Setting Mode .......................... 5-40
5-5
Calibration Setting Mode........................................ 5-51
5-6
5
Detection Functions .................................................5-2
5-2
5
Calculation Setting Mode ....................................... 5-57
GT2-70-M-E
5-1
5-1
Detection Functions
List of Setting Modes
With the GT2-70 Series, you can set various functions to support many kinds of
detection methods.
Mode
Function
setting
mode
Description
Sets up functions related to detection and timing.
" 5-2 Function Setting Mode " (page 5-6)
Basic setting
mode
Sets basic output functions and desired number
of digits to be displayed.
" 5-3 Basic Setting Mode " (page 5-17)
Additional
function
setting
mode
Calibration
setting
mode
5
Setting Various Functions
Power save and core alarm control.
Sets the calibration function.
" 5-4 Additional Function Setting Mode "
(page 5-40)
" 5-5 Calibration Setting Mode " (page 5-51)
Calculation
setting mode
Calculation based on the multiple detected
targets to check the degree of flatness, twist, or
warpage.
" 5-6 Calculation Setting Mode " (page 5-57)
Reference
Entering the mode
Press and hold the
[MODE] button for at least
two seconds.
Press and hold the
[MODE] and [SET]
buttons at the same time
for at least two seconds.
Press and hold the
[MODE] button and the left
arrow key at the same time
for at least two seconds.
Press and hold the
[MODE] button and the
right arrow key at the
same time for at least two
seconds.
Press and hold the
[MODE] button for at least
two seconds. (This mode
can be set only when the
expansion unit is added.)
Each setting mode can be entered only from the main screen.
" 3-1 Main Screens " (page 3-2)
Parameter Setting List
■ Function setting mode
" 5-2 Function Setting Mode " (page 5-6)
• Entering function setting mode: Press and hold the [MODE] button for at least
two seconds.
No.
Item
01.
02.
Hold update method
03.
Response time
04.
Timing type
05.
5-2
Detection mode
Self-timing level
Description
Select the detection mode.
When " P-H " , " b-H " , or " P-P " is selected in 01., select
" Timing input " or " Regular update " for the update
timing of the hold value.
Longer response time makes the average data time
longer, which stabilizes the value.
For the timing input, select " External timing " or " Self
timing (internal timing) " .
When self timing is selected in 04., set the threshold
of the timing input.
Reference
page
5-7
5-8
5-9
5-11
5-12
GT2-70-M-E
5-1 Detection Functions
No.
Item
06.
Self timing delay type
07.
User specified delay
time
Static hold delay
stability criterion
Static hold delay
stability width
08.
09.
Description
Reference
page
When " Std " is selected in 01., select the timing to fix
the criterion value after the value rises above (or falls
below) the self-timing level: " When the setting time is
elapsed (delay timer) " or " After the display value is
stabilized (static hold) " .
Set the delay time when " When the setting time is
elapsed (delay timer) " is selected in 06..
Set the reference of stability criterion when " After the
display value is stabilized (static hold) " is selected in 06..
Enter a desired number when USEr (user
specification) is selected in 08..
5-13
5-14
5-15
5-16
■ Basic setting mode
" 5-3 Basic Setting Mode " (page 5-17)
• Entering basic setting mode: Press and hold the [MODE] and [SET] buttons at
the same time for at least two seconds.
Item
Description
10.
Set the " Normal " or " Reverse " to set the measurement
value to increase or decrease based on position.
Set the ratio of the detected value.
Set " ON (N.O.) " or " OFF (N.C.) " for output judgment.
5-19
5-20
Set the number of display digits.
5-21
14.
Measurement direction
change
Multiplier
Output mode
Displayed number of
digits
Hysteresis
5-22
15.
Batch input setting
Set the hysteresis value.
Set to make input to all added expansion units when
an input is made to the input line of the main unit.
11.
12.
13.
5-18
5-24
The settings for items numbered 16 and higher are different depending on the
amplifier unit being used.
When using a model other than GT2-71MCN/MCP (analog output type)
No.
16.
17.
-
18.
Reference
page
Special output setting Select the function of the special output lines (orange, green).
5-26
Set the reference position where the limit output turns
Limit output HH side
on toward the spindle contraction side when the
5-33
teaching
" Lt.USEr " is selected in 16..
Limit output HH side
With the reference position being 0, set the position
5-34
criterion position setting where the limit output of the contraction side turns on.
Set the reference position where the limit output turns
Limit output LL side
on toward the spindle extension side when the
5-35
teaching
" Lt.USEr " is selected in 16..
Limit output LL side
With the reference position being 0, set the position
criterion position
5-36
where the limit output extension side turns on.
setting
GT2-70-M-E
Item
Description
5-3
Setting Various Functions
Reference
page
No.
5
5-1 Detection Functions
When using GT2-71MCN/MCP (analog output type)
No.
Item
16.
Analog range setting
17.
Free range settings
(Hi side)
Free range settings
(Lo side)
18.
Reference
page
Description
Set the analog output range to " dEFALt (head stroke) "
or " FrEE (free range) " .
Set the Hi side for the free range setting when " FrEE "
is selected in 16.
Set the Lo side for the free range setting when " FrEE "
is selected in 16.
5-37
5-38
5-39
■ Additional function setting mode
" 5-4 Additional Function Setting Mode " (page 5-40)
• Entering additional function setting mode: Press and hold the [MODE] and [ & lt; ]
buttons at the same time for at least two seconds.
5
No.
Setting Various Functions
20.
21.
22.
23.
24.
25.
Item
Description
Select preset data
Preset memory
Select the data to use when performing the preset.
Set whether or not to save " zero-point correction " .
Set the memory method for " zero-point correction "
Preset point setting
when using the bank function.
Power-saving function To decrease the power consumption or not to display
(ECO)
the numerical value, set this function.
When the spindle does not return due to an
Jam detection function undetected event in external timing input, set to
detect such an event as an error.
Jam detection
Set the reference position for the jam detection.
teaching
Set the position to perform the jam detection function
Jam detection position
with the reference position being 0.
Reference
page
5-41
5-42
5-43
5-44
5-45
5-49
5-50
■ Calibration setting mode
" 5-5 Calibration Setting Mode " (page 5-51)
• Entering calibration setting mode: Press and hold the [MODE] and [ & gt; ] buttons
at the same time for at least two seconds.
No.
30.
31.
-
5-4
Item
Calibration function
setting
1st point detection/
capture
Reference
page
Description
Set the calibration function.
5-52
Set the zero point (1st point).
5-53
2nd point target value
Set the target value of the span adjustment (2nd
point).
5-54
2nd point detection/
capture
Set the detection position for the span adjustment.
5-55
GT2-70-M-E
5-1 Detection Functions
■ Calculation setting mode
" 5-6 Calculation Setting Mode " (page 5-57)
• Entering calculation setting mode: After setting an expansion unit, press and
hold the [MODE] button on the main unit for at least two seconds.
No.
Item
A1.
Calculation mode
setting
A2.
Calculation method
Description
Set the calculation mode when an expansion unit(s)
is added.
* The calculation mode will appear only when an
expansion unit(s) is added.
Set the calculation method when " noCALc " is
selected in A1..
Reference
page
5-57
5-58
5
Setting Various Functions
GT2-70-M-E
5-5
5-2
Function Setting Mode
Entering Function Setting Mode
Enter the function setting mode by the following procedure.
·
On the main screen, press and hold the [MODE] button for at least two seconds.
[MODE] button
5
Main screen (P.V. value display screen)
Setting Various Functions
Note
When " CALc (Calculation mode) " is selected in " A1. Calculation
Mode " (except when " C5.rEF (Reference difference) " is selected in
" A2. Calculation method " ), the expansion unit cannot enter the
function setting mode.
Exiting Function Setting Mode
Exit the function setting mode by either of the following procedures to display the
main screen.
·
·
Press and hold the [MODE] button for at least two seconds.
Or press the right arrow key several times until the setting completion display
appears, and press the right arrow key once more.
Right arrow key
Setting completion display
5-6
GT2-70-M-E
5-2 Function Setting Mode
01. Detection Mode
Select the mode when detecting the target.
MODE
Press and hold
for at least 2 sec
MODE
Standard
5
NG hold
Peak hold
Press and hold
for at least 2 sec
Peak-to-peak
" Entering Function Setting Mode " (page 5-6)
Detection mode
Standard detection
NG hold detection
Description
On " P.V. value display screen " , the displayed values and
criterion output are always updated.
In addition, the displayed values and criterion output can be
held by the timing input.
O
" 4-1 Judging with the Current Value " (page 4-2)
Holds the output when the detected value exceeds (drops
below) the HIGH (LOW) setting during external timing.
Peak hold
Hold detection
Initial
value
" 4-6 Holding HIGH/LOW Output " (page 4-32)
Holds the peak value during external (or internal) timing.
Bottom hold
" 4-3 Judging by the Maximum Value (Peak Hold) "
(page 4-10)
Holds the bottom value during external (or internal) timing.
Peak-to-peak
" 4-4 Judging by the Minimum Value (Bottom Hold) "
(page 4-19)
Holds the peak-to-peak value within the " Sampling period "
defined external timing.
" 4-5 Judging with the Difference between Maximum
and Minimum Values " (page 4-28)
" Chapter 4: Using Detection Modes " (page 4-1)
GT2-70-M-E
5-7
Setting Various Functions
MODE
Bottom hold
5-2 Function Setting Mode
02. Hold Update Method
Selects the method by which the hold display P.V. value is updated.
Reference
This is only available when P-H (peak hold), b-H (bottom hold) or P-P (peakto-peak) is selected in " 01. fn & lt; (Detection mode) " .
" 01. Detection Mode " (page 5-7)
MODE
Press and hold
for at least 2 sec
MODE
5
timing input
Setting Various Functions
Regular update
MODE
Press and hold
for at least 2 sec
" Exiting Function Setting Mode " (page 5-6)
Item
Timing input
Regular update
Reference
5-8
Description
Default
Setting
The P.V. value to hold and display is not updated during the
sampling period, and is updated after the sampling period
finishes.
O
During the sampling period, each hold value (P.V. value) is
displayed with regular updates.
For more details about operations, refer to
Detection Modes " (page 4-1).
" Chapter 4: Using
GT2-70-M-E
5-2 Function Setting Mode
03. Response Time
The response time is the time from when the sensor head starts detection until the
measured value has been processed.
MODE
Press and hold
for at least 2 sec
MODE
When " nG-H " or " P-P " is selected
in 01. Detection mode
When " CAL.noH " is selected in
A1. Calculation mode
Setting value
input screen
5
MODE
Press and hold
for at least 2 sec
" Entering Function Setting Mode " (page 5-6)
Setting range
Response time hSP*/5/10/100/500/1000 (unit: ms)
Default
Setting
100
* If hSP is selected, the response time will be 3 ms.
With the GT2-70 Series, the internal data that have been sampled are averaged
according to the response time. If you increase the response time, the number of
averaged samples will be increased. If you decrease the response time, the number
of averaged samples will be decreased.
Response time
(ms)
hSP (3)
5
10
100
500
1000
GT2-70-M-E
Number of
averaged samples
1
3
8
94
480
960
Average time (ms)
1
3
8
94
480
960
Internal update cycle
(ms)
1
1
1
4
16
32
5-9
Setting Various Functions
Item
5-2 Function Setting Mode
Example
If you set a response time of 10 ms (average time: 8 ms, number of
averaged samples 8), data will be obtained and output as follows:
Sampling period (1 ms)
1
2
3
4
5
6
7
8
9 10 11
Average measurement time
Internal data
Averages data 1 to 8
and outputs data A.
Average measurement time
Averages data 2 to 9
and outputs data B.
Averages data 3 to 10
and outputs data C.
Average measurement time
Criterion data
A B C
Update cycle
5
Reference
Setting Various Functions
5-10
Update cycle
• If you want to detect instantaneous changes, set a short response time.
• If you want to ignore instantaneous changes or fluctuations of values,
set a long response time.
GT2-70-M-E
5-2 Function Setting Mode
04. Timing Type
Selects a type of timing input.
Reference
This item can be set only when Skd (Standard), P-H (Peak hold), or b-H
(Bottom hold) is selected for " 01. fn & lt; (Detection mode) " .
" 01. Detection Mode " (page 5-7)
MODE
Press and hold
for at least 2 sec
MODE
5
External timing input
MODE
Press and hold
2 sec
Falling edge
self-timing
for at least
" Entering Function Setting Mode " (page 5-6)
Item
Default
Setting
Description
External timing
input
Rising edge
self-timing
Select this when using the input (pink/violet) from an external
device.
" 7-2 I/O Diagram " (page 7-8)
When the detected value exceeds the self-timing level (a change
from the value below the self-timing level to the one above the selftiming level), the timing input occurs.
Detected value
Falling edge
self-timing
O
Self-timing level
Timing input occurrence
" 05. Self-timing Level " (page 5-12)
When the detected value drops below the self-timing level (a
change from the value above the self-timing level to the one below
the self-timing level), the timing input occurs.
Detected value
Timing input occurrence
Self-timing level
" 05. Self-timing Level " (page 5-12)
Reference
GT2-70-M-E
For more details about operations, refer to
Detection Modes " (page 4-1).
" Chapter 4: Using
5-11
Setting Various Functions
Rising edge
self-timing
5-2 Function Setting Mode
05. Self-timing Level
The self-timing level is the set point to trigger the timing input automatically when it
detects a change in the values.
Reference
This item can be set only when either
(Rising edge self-timing) or
SELF.~L (Falling edge self-timing) is selected for "
(Timing type) " .
" 04. Timing Type " (page 5-11)
MODE
Press and hold
5
for at least 2 sec
MODE
Setting Various Functions
Setting value
input screen
MODE
Press and hold
2 sec
for at least
" Entering Function Setting Mode " (page 5-6)
Item
Setting range
Self-timing level
-199.9999 to 199.9999 (unit: mm)
Reference
5-12
Default
Setting
0.5000
The hysteresis can be set for the self-timing level.
" 14. Hysteresis " (page 5-22)
GT2-70-M-E
5-2 Function Setting Mode
06. Self Timing Delay Types
The Self timing delay is basically an on-delay. The delayed time is the point from
where the timing input activates to the point where the desired value is measured
and held.
This item can be set only under the following conditions.
• Skd (Standard) is selected for " 01. fn & lt; (Detection mode) " .
• Either
(Rising edge self-timing) or SELF.~L (Falling edge self-timing)
is selected for "
(Timing type) " .
" 01. Detection Mode " (page 5-7)
" 04. Timing Type " (page 5-11)
Reference
5
MODE
Press and hold
for at least 2 sec
Static hold
MODE
Delay timer
Press and hold
for at least 2 sec
" Entering Function Setting Mode " (page 5-6)
Item
Static hold
Default
Setting
Description
After the timing input by the self-timing level occurs, when
the range of fluctuation of the detected value stays below
a constant value, the value is considered to be " stabilized "
and it is held. (The range of fluctuation can be set to any
value.)
Criterion value hold
Stability width
O
R.V. value
Timing input
Self-timing level
Response time
" 08. Static Hold Delay Stability " (page 5-15)
After the timing input by the self-timing level occurs, the
delay timer starts operation. It holds the value after the
delay time specified has elapsed.
Delay timer
Value hold
R.V. value
Timing input
Self-timing level
Delay time
" 07. User-specified Delay Time " (page 5-14)
GT2-70-M-E
5-13
Setting Various Functions
MODE
5-2 Function Setting Mode
07. User-specified Delay Time
Set the delay time to fix the criterion value after the timing input occurs using the selftiming input.
Adjusting the on-delay time.
Reference
This item can be set only when " k.d (Delay timer) is selected for " 06.dLY
(Self-timing delay type) " .
" 06. Self Timing Delay Types " (page 5-13)
MODE
Press and hold
for at least 2 sec
5
MODE
Setting Various Functions
Setting value
input screen
MODE
Press and hold
for at least 2 sec
" Entering Function Setting Mode " (page 5-6)
Item
User-specified delay time
5-14
Setting range
0 to 9999 (unit: ms)
Default
Setting
1000
GT2-70-M-E
5-2 Function Setting Mode
08. Static Hold Delay Stability
Select the setting method for the value of the stability width in the static hold delay
stability.
Adjusting the stability width.
This item can be set only when " Skb.d (Static hold) is selected for 06.dLY
(Self-timing delay type) " .
" 06. Self Timing Delay Types " (page 5-13)
Reference
MODE
Press and hold
for at least 2 sec
5
MODE
Setting Various Functions
Default
User
MODE
Press and hold
at least 2 sec
for
" Entering Function Setting Mode " (page 5-6)
Item
Default
Setting
Description
The stability width is set to the default value (0.0100 mm).
Value hold
Stability width = 0.0100 mm
Default
R.V. value
Timing input
O
Self-timing level
" 06. Self Timing Delay Types " (page 5-13)
The stability width can be set to any value. You can specify the
value in " 09. Static hold delay stability width " .
Value hold
User
Stability width = Set any value
R.V. value
Timing input
Self-timing level
" 09. Static Hold Delay Stability Width " (page 5-16)
Reference
GT2-70-M-E
For more details about operations, refer to
Detection Modes " (page 4-1).
" Chapter 4: Using
5-15
5-2 Function Setting Mode
09. Static Hold Delay Stability Width
Set the value of the stability width when the static hold delay is set.
Reference
This item can be set only when " USEr (User) is selected for " 08.Skb
(Static hold delay stability criterion) " .
" 08. Static Hold Delay Stability " (page 5-15)
MODE
Press and hold
for at least 2 sec
MODE
5
Setting value
input screen
MODE
Setting Various Functions
Press and hold
at least 2 sec
for
" Entering Function Setting Mode " (page 5-6)
Item
Static hold
delay stability width
5-16
Setting range
0.0000 to 199.9999 (unit: mm)
Default
Setting
0.0100
GT2-70-M-E
5-3
Basic Setting Mode
Entering Basic Setting Mode
Enter the function setting mode by the following procedure.
• From the main screen, press and hold the [MODE] and [SET] buttons at the
same time for at least two seconds.
[MODE] button
Main screen (P.V. value display screen)
[SET] button
Use one of the following methods to exit basic setting mode and display the main
screen.
• After the settings are complete, press and hold the [MODE] button for at least
two seconds.
• After the settings are complete, press the right arrow key several times until
the setting completion display appears, and press the right arrow key once
more.
Right arrow key
Setting completion display
GT2-70-M-E
5-17
Setting Various Functions
Exiting Basic Setting Mode
5
5-3 Basic Setting Mode
10. Measurement Direction
Display the value detected when the sensor head spindle is pressed as a positive
(normal) or negative (reverse) value.
Reference
On the main unit, this setting is available to set only when " noCAL & lt; (No
calculation) " or " CAL & lt; (Calculation mode) " is selected in " a1. apl
(Calculation mode) " .
" 5-6 Calculation Setting Mode " (page 5-57)
MODE
Press and hold
SET
for at least 2 sec
5
MODE
Setting Various Functions
Normal
Reverse
MODE
Press and hold
for at least 2 sec
" Entering Basic Setting Mode " (page 5-17)
Measurement
direction
Normal
Default
Setting
Description
Value increases based on the
amount that the spindle is
pushed in (amount of
movement).
Setting
199.9999
O
-199.9999
0
Reverse
Value decreases based on
the amount that the spindle is
pushed in (amount of
movement).
Spindle movement
Setting
199.9999
-199.9999
0
Spindle movement
Note
When changing the measurement direction, reset the following
parameters:
• HIGH setting value (
" (5) HIGH setting value display " (page 3-7))
• LOW setting value (
" (6) LOW setting value display " (page 3-8))
• Timing type (
" 04. Timing Type " (page 5-11))
• Self-timing level (
" 05. Self-timing Level " (page 5-12))
5-18
GT2-70-M-E
5-3 Basic Setting Mode
11. Multiplier
When the detection point is located beyond a lever or in other similar cases, the
display value can be displayed by multiplying the actual detected value.
Reference
On the main unit, this setting is available to set only when " noCAL & lt; (No
calculation) " or " CAL & lt; (Calculation mode) " is selected in " a1. apl
(Calculation mode) " .
" Calculation Setting Mode " (page 5-57)
MODE
SET
Press and hold
for at least 2 sec
5
MODE
MODE
Press and hold
for at least 2 sec
" Entering Basic Setting Mode " (page 5-17)
Item
Multiplier
GT2-70-M-E
Setting range
0.1 to 100.0
Default
Setting
1.0
5-19
Setting Various Functions
Setting value
input screen
5-3 Basic Setting Mode
12. Output Mode
Set the output mode (ON (N.O.) or OFF (N.C.)) of the criterion output.
MODE
Press and hold
SET
for at least 2 sec
MODE
N.O.
N.C.
5
MODE
Press and hold
for at least 2 sec
" Entering Basic Setting Mode " (page 5-17)
Setting Various Functions
Output mode
Description
Default
Setting
N.O.
(Normal open)
O
Turns on output for criterion output.
N.C.
(Normal close)
Turns off output for criterion output.
Example
Judgment
Output mode
N.O. (Normal open)
HIGH criterion
N.C. (Normal close)
5-20
Criterion output
HIGH output: On
GO output: Off
LOW output: Off
HIGH output: Off
GO output: On
LOW output: On
GT2-70-M-E
5-3 Basic Setting Mode
13. Displayed Number of Digits
Set the number of digits of the display value in the digital display.
Set this when you want to display only the necessary digits.
MODE
Press and hold
SET
for at least 2 sec
MODE
Displayed
digits selection
5
MODE
Press and hold
for at least 2 sec
" Entering Basic Setting Mode " (page 5-17)
Displayed number of digits
Reference
Setting range
0.0001 / 0.001 / 0.01 / _ _ _0.1 (unit: mm)
Default
Setting
0.0001
• Changes to the displayed number of digits are applied only to the P.V.
value, R.V. value, and calculated value displays.
• When the displayed value is less than 1.000.0, " _ _ _ 0.1 " is displayed
by omitting the first 0.
Example
Note
Changes to the displayed number of digits do not affect criterion
output.
GT2-70-M-E
5-21
Setting Various Functions
Item
5-3 Basic Setting Mode
14. Hysteresis
Set the hysteresis value.
The hysteresis value is common among the HH setting value, HIGH setting value,
LOW setting value, LL setting value, and self-timing level.
" (5) HIGH setting value display " (page 3-7)
" (6) LOW setting value display " (page 3-8)
" 3-4 Setting the HH/LL Criterion Value " (page 3-21)
" 05. Self-timing Level " (page 5-12)
Note
The hysteresis setting is not applied to the limit output.
" Limit output " (page 5-27)
5
Setting Various Functions
Reference
• Hysteresis refers to the characteristic where the criterion value that
turns on the criterion output and the one that turns off the criterion
output are different.
• If the P.V. value is fluctuating around the tolerances the outputs may
repeatedly turn on and off.
Setting the hysteresis changes the width between the tolerances that
turn the outputs on and off, thus preventing this phenomenon.
" 3-3 Setting the Tolerances " (page 3-14)
MODE
Press and hold
SET
for at least 2 sec
MODE
Setting value
input screen
MODE
Press and hold
for at least 2 sec
" Entering Basic Setting Mode " (page 5-17)
Item
Hysteresis
5-22
Setting range
0.0000 to 199.9999 (unit: mm)
Default
Setting
0.0030
GT2-70-M-E
5-3 Basic Setting Mode
When hysteresis is not set (setting is 0)
Setting the hysteresis to 0 causes fluctuations in the P.V. value to directly affect the
criterion output, so it is useful for applications that require strict tolerance measurements.
However, when the detected values fluctuate close to the tolerances, the criterion output
becomes unstable.
HIGH criterion area Value fluctuates near
the HIGH value
HIGH value
Display value
R.V. value
GO criterion area
HIGH value
5
LOW value
ON
GO output OFF
ON
LOW output OFF
The criterion output is unstable when both HIGH and
GO outputs are on or off
When hysteresis is set
When the hysteresis is set, the output is stable and does not react excessively to fine
variations in the P.V. value close to the tolerances.
A large hysteresis tends to produce a more stable output, but it also becomes more
difficult to output for GO when the P.V. value varies close to the tolerances.
HIGH criterion area
Display value
R.V. value
Value fluctuates near
the HIGH value
HIGH value
GO criterion area
HIGH value
Hysteresis
Hysteresis width
Hysteresis
LOW value
Time
ON
HIGH output OFF
ON
GO output OFF
ON
LOW output OFF
GT2-70-M-E
Output is stable even when
the P.V. value fluctuates
5-23
Setting Various Functions
Time
ON
HIGH output OFF
5-3 Basic Setting Mode
15. Batch Input Settings
When there is input on the line to the main unit, settings can be batch input to all expansion units.
Batch input settings allow timing input and preset input to the main unit to be input to
all expansion units when expansion units are connected.
" 7-2 I/O Diagram " (page 7-8)
Note
5
Reference
When the batch setting mode is set, the input response time
becomes longer.
" 7-4 Timing Chart " (page 7-12)
Setting Various Functions
• This setting is only available for main units that have expansion units
connected.
• This cannot be set if a model other than the GT2-70 Series is added.
• Batch input is available with the following functions.
• External timing input (pink / violet lines)
• External preset input (pink line)
• Reset input (red line)
• External bank A switch input (violet line)
• External bank B switch input (yellow line)
• Key lock, full key lock
MODE
Press and hold
SET
for at least 2 sec
MODE
Individual input
Batch input
MODE
Press and hold
2 sec
for at least
" Entering Basic Setting Mode " (page 5-17)
Item
Individual input
Batch input
5-24
Default
Setting
Description
Input into main and expansion units individually.
Additionally, the key lock function can be set individually.
O
Input to the main unit is also input to any connected
expansion units. Additionally, using the key lock function on
the main unit activates it for all expansion units. At this time,
key lock cannot be deactivated from expansion units.
GT2-70-M-E
5-3 Basic Setting Mode
Reference
• When batch input settings are being used, the input lines to all
expansion units are deactivated.
• " ALL.Loc " will be displayed when attempting to deactivate the key lock
on an expansion unit while the key lock or the full key lock on the main
unit is active when using batch input settings.
5
Setting Various Functions
GT2-70-M-E
5-25
5-3 Basic Setting Mode
16. Special Output Setting
Selects the special output (orange, green) function.
" 7-2 I/O Diagram " (page 7-8)
Note
This setting can be set only when the sensor amplifier is GT2-71(C)N/
71(C)P/72(C)N/72(C)P/75N/75P/76N/76P.
For GT2-71MCN/MCP (analog output type), refer to
" 16. Analog
Range Setting " (page 5-37).
MODE
SET
Press and hold
for at least 2 sec
5
Setting Various Functions
Not used
5-output
Limit output
Limit output user setting
All GO
All limit output
MODE
Press and hold
Note
for at least 2 sec
The items that can be selected (displayed) are different depending on the
settings in " A1. Calculation mode " . (When the expansion unit is not added,
the items that can be selected (displayed) are the same as for " noCALc " .)
16. Special output setting
*1
A1. Calculation mode
O
O
O
O*
O
*1
O
2
O
O
O
-
O
O
O*3
-
-
-
O
O
*1 This can be set only on the main unit that an expansion unit is added.
*2 On the expansion unit, this can be set only when " C5.rEF
(Reference difference) is selected in " A2. Calculation Mode " .
*3 This can be set only when " C5.rEF (Reference difference) " is
selected in " A2. Calculation method " .
" Entering Basic Setting Mode " (page 5-17)
5-26
GT2-70-M-E
5-3 Basic Setting Mode
Item
Not used
5-output
Default
Setting
Description
Special output (orange line, green line) functions are not
used.
O
Uses the special outputs (orange line, green line) as
the HH and LL criterion output.
The HH and LL side criterion values are set on the
main screen.
" (4) 5 output HH setting value display " (page 3-6)
" (7) 5 output LL setting value display " (page 3-9)
Limit output
Limit output user
setting
Inspects the sensor head spindle mechanical position
(extension-side end, contraction-side end) for limit
output.
5
All GO
Outputs HH output (orange line) when all connected
expansion units and the main unit * are set to GO criterion
output, otherwise it outputs LL output (green line).
All limit output
Outputs HH output (orange line) when the HH-side limit
output is ON for all connected expansion units and outputs
LL output (green line) when the LL-side limit output is ON
for all connected expansion units
* Main unit output is not included when " CAL.noH " is selected in " A1. Calculation
mode " .
Special Output Settings
■ When " 5out (5-output) " is selected
If " 5out " is selected under " 16. Special
output settings " , HH and LL criterion
can be output in addition to normal
criterion output (HIGH, GO, LOW).
The HH criterion performs criterion
output according to the value set
above the HIGH setting value (HH
setting value & gt; HIGH setting value).
The LL criterion performs criterion
output according to the value set
below the LOW setting value (LL
setting value & lt; LOW setting value).
GT2-70-M-E
Lights in
red
HH criterion range
HH setting value
Position with
spindle contracted
HIGH criterion range
HIGH setting value
Lights in
green
GO criterion range
Lights in
red
LOW criterion range
LOW setting value
LL criterion range
LL setting value
Position with
spindle extended
5-27
Setting Various Functions
Sets the sensor head spindle mechanical position
(extension-side end, contraction-side end).
5-3 Basic Setting Mode
Note
• Make settings such that the HH setting value is higher than the
HIGH setting value. If the HH setting value is set below the HIGH
setting value, the HIGH criterion will not be output.
• Make settings such that the LL setting value is lower than the LOW
setting value. If the LL setting value is set above the LOW setting
value, the LOW criterion will not be output.
• If the HH setting value is lower than the LL setting value, each
output will be as follows.
• GO, HIGH and LOW criterion will not be output regardless of the
detection value.
• If values above the HH setting value or below the LL setting
value are detected, HH criterion output and LL criterion output
are both output.
• When setting criterion values, make sure that the HH setting value
is the largest, the LL setting value is the smallest and that the HIGH
setting value is greater than the LOW setting value.
5
Setting Various Functions
Reference
• Set the HH setting value on the " 5-output HH setting value screen " of
the main screen.
" (4) 5 output HH setting value display " (page 3-6)
• Set the LL setting value on the " 5-output LL setting value screen " of the
main screen.
" (7) 5 output LL setting value display " (page 3-9)
■ When " Lt (limit output) " is selected
When " Lt " is selected from " 16. Special Output Settings " , HH is output on the spindle
contraction side and LL is output on the spindle extension side.
The factory default mechanical positions are detected for both the HH and LL output
positions, and so they are output with no effect from settings such as measurement
adjustment direction or multiplier.
Detection position
of contracted side
of the limit
output*1
HH output
LL output
*1 Position when contracted the amount of
the detection range from the origin position
set when shipped from the factory
5-28
Detection position of
extended side of the
limit output*2
*2 Origin position set when shipped from
the factory
GT2-70-M-E
5-3 Basic Setting Mode
Note
• When " Lt " is selected, limit output detection position for the HH or
LL sides cannot be changed. Select " LtUSEr " to set a specific
detection position.
• Contraction side HH and extension side LL will normally be output
even if the measurement adjustment direction is changed.
■ When " Lt.USEr (limit output user settings) " is selected
When " Lt.USEr " is selected from " 16. Special output settings " , limit output extension
(HH) side detection position and contraction (LL) side detection position can be set
to specific positions.
HH output
Detection position
of contracted side
of the limit output
(can be set to a
desired position)
LL output
Detection position
of extended side
of the limit output
(can be set to a
desired position)
Setting procedure
1
Enter basic setting mode, select " 16. Special
Output Settings " , and then select " Lt.USEr (limit
output user setting) " .
" Entering Basic Setting Mode " (page 5-17)
Use the
/
buttons to display " 16. SPo
(16. Special Output Settings) " , then use the
/
buttons to select " Lt.USEr (limit output user
settings) " .
Use the
/
buttons or the
MODE
button to
confirm the setting.
GT2-70-M-E
5-29
5
Setting Various Functions
The detection positions for the contraction (HH) side and the extension (LL) side are
output without any effects from settings such as measurement change position or
multiplier.
5-3 Basic Setting Mode
2
Select " Set.HH " .
" Limit Output HH Side Teaching " (page 5-33)
" Set.HH " will not be displayed if any selection other
than " Lt.USEr " under " 16. Special Output Settings " is
selected.
3
Move the spindle to the position you wish to set
as the HH side limit output detection reference
position, then press the " SET " button.
This calibrates the HH side limit output detection
reference position.
5
" SEt " will blink and the HH side limit output will be
set when " SET " is pressed at the reference position.
Setting Various Functions
The screen will return to " SEt.HH " after the setting is
made.
4
Select " 17. Limit output HH side criterion position
settings " to specify the HH side ON position.
" 17. Limit Output HH Side Criterion Position
Setting " (page 5-34)
Setting range: -199.9999 to 199.9999 (mm)
Default setting: 0.5000
to -199.9999
HH side limit output
detection reference position
0
to 199.9999
Use the
/
buttons or the
MODE
button to
confirm the setting.
5
Select " SEt.LL " .
" Limit Output LL Side Teaching " (page 5-35)
5-30
GT2-70-M-E
5-3 Basic Setting Mode
6
Move the spindle to the position you wish to set
as the LL side limit output detection reference
position, then press the " SET " button.
This calibrates the LL side limit output detection
reference position.
" SEt " will blink and the LL side limit output will be
set when " SET " is pressed at the reference position.
The screen will return to " SEt.LL " after the setting is
made.
7
5
Setting Various Functions
Select " 18. Limit output LL side criterion
position settings " to specify the LL side ON
position.
" 18. Limit Output LL Side Criterion Position
Setting " (page 5-36)
Setting range: -199.9999 to 199.9999 (mm)
Default setting: 0.5000
to 199.9999
LL side limit output
detection reference position
0
to -199.9999
Use the
/
buttons or the
MODE
button to
confirm the setting.
8
Close the settings.
Press the [Right] arrow button or the [MODE]
button for at least two seconds to cancel the
setting.
Press
or press
and MODE
hold
for at
least 2 sec
MODE
Return to the main screen
GT2-70-M-E
5-31
5-3 Basic Setting Mode
■ When " ALL.Go (all go) " is selected
The HH output is output only if " ALL.Go " is selected under " 16 Special Output
Settings " and the main unit and all connected expansion units are judged as the GO
criterion. In other cases, the LL output of the main unit is output.
Note
• This is only available for main units that are connected to one or
more expansion units.
• If the number of expansion units is changed after configuring the
settings, reconfigure the settings.
5
Setting Various Functions
Condition for the main unit HH output to turn ON: When all connected expansion units and
the main unit* output the GO criterion
Condition for the main unit LL output to turn ON: When the main unit HH output is OFF
* Main unit output is not included when " CAL.noH " is selected in " A1. Calculation mode " .
■ When " ALL.Lt (all limit output) " is selected
When " 16. Special output setting " is set to " ALL.Lt " , if the HH side limit outputs for all
connected expansion units are set to ON, the main unit HH output will be ON and if
the LL side limit outputs for all connected expansion units are set to ON, the main
unit LL output will be ON.
Note
• This can only be set on the main unit when " CAL.noH " is set under
" A1. Calculation mode " and there are 2 or more expansion units
connected.
• The main unit judges output for HH and LL output for expansion
units with " 16. Special output settings " set to " Lt " or " Lt.USEr " .
Condition for the main unit HH output to turn ON: When all connected expansion units with
" 16. Special output settings " is set to " Lt " or
" Lt.USEr " have their limit output set to HH
criterion
Condition for the main unit LL output to turn ON: When all connected expansion units with
" 16. Special output settings " is set to " Lt " or
" Lt.USEr " have their limit output set to LL
criterion
Reference
5-32
The main unit judges output for HH and LL output for When " 16. Special
Output Settings " is set to " noUSE " or " 5out " on all expansion units, HH and
LL output are not output on the main unit.
GT2-70-M-E
5-3 Basic Setting Mode
Limit Output HH Side Teaching
This section describes how to set the limit output HH side detection position to the
desired position.
For the setting procedure, refer to
selected " (page 5-29).
" When " Lt.USEr (limit output user settings) " is
Note
• Limit output HH side calibration is only available when " Lt.USEr
(limit output user settings) " under " 16. Special Output Settings " is
selected.
• This setting can be set only when the sensor amplifier is
GT2-71(C)N/71(C)P/72(C)N/72(C)P/75N/75P/76N/76P.
SET
for at least 2 sec
Reference
position set
MODE
Press and hold
for at least 2 sec
" Entering Basic Setting Mode " (page 5-17)
GT2-70-M-E
5-33
Setting Various Functions
MODE
Press and hold
5
5-3 Basic Setting Mode
17. Limit Output HH Side Criterion Position Setting
This sets the limit output HH side criterion position to a specified position.
For information about the setting procedure, refer to
" When " Lt.USEr (limit output
user settings) " is selected " (page 5-29).
Note
• Limit output HH side criterion position setting is only available
when " Lt.USEr (limit output user settings) " under " 16. Special
Output Settings " is selected.
• This setting can be set only when the sensor amplifier is
GT2-71(C)N/71(C)P/72(C)N/72(C)P/75N/75P/76N/76P.
5
MODE
Press and hold
SET
for at least 2 sec
Setting Various Functions
MODE
Screen for entering
the setting value
MODE
Press and hold
at least 2 sec
for
" Entering Basic Setting Mode " (page 5-17)
Item
Setting range
Default
Setting
-199.9999 to 199.9999
to -199.9999
Limit output HH side
criterion position settings
HH side limit
output detection
reference position
0.5000
0
to 199.9999
Reference
5-34
• Make sure the settings reflect multipliers and calibration.
" 11. Multiplier " (page 5-19)
" 30. Calibration Function Setting " (page 5-52)
• There is no effect from the settings in " 10. Measurement Direction " .
" 10. Measurement Direction " (page 5-18)
GT2-70-M-E
5-3 Basic Setting Mode
Limit Output LL Side Teaching
This section describes how to set the limit output LL side detection position to the
desired position.
For information about the setting procedure, refer to
" When " Lt.USEr (limit output
user settings) " is selected " (page 5-29).
Note
• Limit output HH side calibration is only available when " Lt.USEr
(limit output user settings) " under " 16. Special Output Settings " is
selected.
• This setting can be set only when the sensor amplifier is
GT2-71(C)N/71(C)P/72(C)N/72(C)P/75N/75P/76N/76P.
MODE
SET
for at least 2 sec
MODE
Reference
position set
Press and hold
for at least 2 sec
" Entering Basic Setting Mode " (page 5-17)
GT2-70-M-E
5-35
Setting Various Functions
Press and hold
5
5-3 Basic Setting Mode
18. Limit Output LL Side Criterion Position Setting
This sets the limit output LL side criterion position to a specified position.
For information about the setting procedure, refer to
" When " Lt.USEr (limit output
user settings) " is selected " (page 5-29).
Note
• Limit output LL side calibration is only available when " Lt.USEr
(limit output user settings) " under " 16. Special output settings " is
selected.
• This setting can be set only when the sensor amplifier is
GT2-71(C)N/71(C)P/72(C)N/72(C)P/75N/75P/76N/76P.
5
MODE
Press and hold
SET
for at least 2 sec
Setting Various Functions
MODE
Setting value
input screen
MODE
Press and hold
for at least 2 sec
" Entering Basic Setting Mode " (page 5-17)
Item
Setting range
Default
Setting
-199.9999 to 199.9999
Limit output LL side
criterion position settings
to 199.9999
LL side limit
output detection
reference position
0.5000
0
to -199.9999
Reference
5-36
• Make sure the settings reflect multipliers and calibration.
" 11. Multiplier " (page 5-19)
" 30. Calibration Function Setting " (page 5-52)
• There is no effect from the settings in " 10. Measurement Direction " .
" 10. Measurement Direction " (page 5-18)
GT2-70-M-E
5-3 Basic Setting Mode
16. Analog Range Setting
This sets the analog output range.
" 3-5 Analog Output Function " (Page 3-27)
Note
This setting can be set only when the sensor amplifier is
GT2-71MCN/MCP (analog output type).
For GT2-71(C)N/71(C)P/72(C)N/72(C)P/75N/75P/76N/76P, refer to
" 16. Special Output Setting " (page 5-26).
MODE
Press and hold
5
SET
for at least 2 sec
Setting Various Functions
Default
Free range settings
" Entering Basic Setting Mode " (page 5-17)
Item
Default
Free range settings
Description
The analog current is output according to the maximum
stroke of the sensor head.
O
The upper limit value (Hi) and the lower limit value (Lo) of
the analog output range can be set to a desired value.
For details about the analog output, refer to
3-27).
GT2-70-M-E
Default
Setting
" 3-5 Analog Output Function " (page
5-37
5-3 Basic Setting Mode
17. Free Range Settings (Hi)
This sets the setting value of the Hi side of the free range settings.
" 3-5 Analog Output Function " (Page 3-27)
Note
• This setting can be set only when " FrEE (free range settings) " is
selected in " 16. Analog Range Setting " .
• This setting can be set only when the sensor amplifier is
GT2-71MCN/MCP (analog output type).
5
MODE
SET
Press and hold
for at least 2 sec
Setting Various Functions
MODE
Setting value
input screen
" Entering Basic Setting Mode " (page 5-17)
Item
Free range settings (Hi)
5-38
Setting range
-199.9999 to 199.9999 (unit: mm)
Default
Setting
12.0000
GT2-70-M-E
5-3 Basic Setting Mode
18. Free Range Settings (Lo)
This sets the setting value of the Lo side of the free range settings.
" 3-5 Analog Output Function " (Page 3-27)
Note
• This setting can be set only when " FrEE (free range settings) " is
selected in " 16. Analog Range Setting " .
• This setting can be set only when the sensor amplifier is
GT2-71MCN/MCP (analog output type).
MODE
SET
Press and hold
5
for at least 2 sec
Setting value
input screen
" Entering Basic Setting Mode " (page 5-17)
Item
Free range settings (Lo)
GT2-70-M-E
Setting range
-199.9999 to 199.9999 (unit: mm)
Default
Setting
0
5-39
Setting Various Functions
MODE
5-4
Additional Function Setting Mode
Entering Additional Function Setting Mode
The following method can be used to enter additional function setting mode.
• On the main screen, press and hold the [MODE] button and the left arrow key
at the same time for at least two seconds.
Left arrow key
[MODE] button
5
main screen (P.V. value display screen)
Setting Various Functions
Exiting Additional Function Setting Mode
Use one of the following methods to exit additional function setting mode and display
the main screen.
• After the settings are complete, press and hold the [MODE] button for at least
two seconds.
• After the settings are complete, press the right arrow key several times until
the setting completion display appears, and press the right arrow key once
more.
Right arrow key
Setting completion display
5-40
GT2-70-M-E
5-4 Additional Function Setting Mode
20. Select Preset Data
Selects the data to be used when making presets (origin alignment). When the P.V.
value is selected, it can be preset by the held value.
" 3-2 Origin Alignment " (page 3-11)
Note
MODE
Press and hold
for at least 2 sec
MODE
R.V. value
P.V. value
MODE
Press and hold
for at least 2 sec
" Entering Additional Function Setting Mode " (page 5-40)
Item
Description
Default
Setting
R.V. value
Records the R.V. value when making presets (origin
alignment).
O
P.V. value
Records the P.V. value when making presets (origin
alignment).
GT2-70-M-E
5-41
5
Setting Various Functions
• This is not available on main units with " CAL.noH " selected under
" A1. Calculation Mode " .
• This is preset by the R.V. value at the time of external preset input
for main units with " CALc " selected under " A1. Calculation Mode " .
(The CALC value is not preset)
• This is preset by the R.V. value at the time of external preset input
for main units with " C5.rEF " selected under " A2. Calculation
Method " that have expansion units where " P.V. " is selected. (The
CALC value is not preset)
• When " 01. Detection Mode " is set to " P-P " , the R.V. value will be
preset even if " P.V. " is selected.
5-4 Additional Function Setting Mode
21. Store Preset Value
The origin information is stored into memory. The information is saved even after the
power is turned off.
When the sensor amplifier turns on, it loads the latest saved origin information.
" 3-2 Origin Alignment " (page 3-11)
Note
• Information can be saved in the storage area even when the power
is turned off about one million times.
Set " NO " in situations such as when the origin is frequently
aligned with an external signal.
• This is not available on main units with " CAL.noH " selected under
" A1. Calculation Mode " .
5
Setting Various Functions
MODE
Press and hold
for at least 2 sec
MODE
YES
NO
MODE
Press and hold
for at least 2 sec
" Entering Additional Function Setting Mode " (page 5-40)
Item
YES (save)
NO (do not save)
5-42
Default
Setting
Description
The origin information is saved in memory region that is not
cleared when the power is turned off when the origin
alignment is set.
Set this parameter when the origin for the detected
workpieces does not change frequently.
The origin information is saved temporary in memory but is
cleared when the power is turned off.
The origin information is cleared when the power is turned
off, so origin alignment must be performed every time that
the power is turned on.
O
GT2-70-M-E
5-4 Additional Function Setting Mode
22. Preset Point
Selects the data to be used when making presets (origin alignment) with per-bank
memory.
When " onE " is selected, the last preset point (origin alignment) written at power on is
used for all banks.
" 3-2 Origin Alignment " (page 3-11)
Note
This is not available on main units with " CAL.noH " selected under
" A1. Calculation Mode " .
5
MODE
Press and hold
for at least 2 sec
Setting Various Functions
MODE
Common for
all banks
Save for
each bank
MODE
Press and hold
for at least 2 sec
" Entering Additional Function Setting Mode " (page 5-40)
Item
Description
Default
Setting
onE
Use the information for the last preset point (origin
alignment) written to memory for all banks.
O
EAch
Store the preset point (origin alignment) information
separately for each bank.
GT2-70-M-E
5-43
5-4 Additional Function Setting Mode
23. Power Save Function
Set this parameter when you want to reduce the consumption power or when you do
not want to display the specific values.
When operating in the power save state, pressing any button will return to the normal
display. If buttons are not pressed in the normal display for one minute, the GT2-70
Series returns to power save mode.
Note
When operating in power save mode, only " Origin alignment " is active. To perform
other operations, press any button to return to the normal display before operating.
5
MODE
Press and hold
for at least 2 sec
Setting Various Functions
MODE
Off
Half-eco
MODE
Full eco
Press and hold
at least 2 sec
for
" Entering Additional Function Setting Mode " (page 5-40)
Item
Off
Default
Setting
Description
Power save is turned off.
Sensor amplifier:
Normal display
Sensor operation indicator: Normal display
O
Half-eco
Only the sensor amplifier enters power save mode.
Sensor amplifier:
Animation display*
Sensor operation indicator: Normal display
Full eco
The sensor amplifier and sensor head both enter power save
mode.
All indicators off (nothing is displayed)
Sensor amplifier:
Sensor operation indicator: Indicators off
* Only one segment blinks at a time on the digital display, moving in order
on the display from right to left. If an error occurs, the error is not
displayed.
5-44
GT2-70-M-E
5-4 Additional Function Setting Mode
24. Jam Detection Function
If a contact sensor is used for a long period of time, the spindle may lose its ability to fully
extend which reduces its ability to perform detection correctly. The jam detection
function checks for this malfunction and outputs error.
Note
• This is not available on main units with " CAL.noH " selected under
" A1. Calculation Mode " .
• Jam detection function can only be set if " t-in " (External timing) is
selected in " 04. Timing type " .
5
MODE
Press and hold
for at least 2 sec
OFF
ON
MODE
Press and hold
User
for at least 2 sec
" Entering Additional Function Setting Mode " (page 5-40)
Item
Default
Setting
Description
OFF
O
The jam detection function is not used.
ON
Checks* whether the spindle moves to the " -FFFF (fully
extended) " or " FFFF (fully compressed) " position when the
external input is on (while not performing detection).
User
Sets a custom position for the jam detection checkpoint.
* When a problem is detected, the core alarm error
display appears and an error is output.
Core alarm error display
GT2-70-M-E
5-45
Setting Various Functions
MODE
5-4 Additional Function Setting Mode
Jam detection
■ When enabled
When " on " is selected in " 24. Jam detection function " , the points where the spindle is
fully extended or fully compressed are used as checkpoints for the core alarm.
These checkpoints are used to determine whether the spindle is operating correctly.
5
The jam detection function checks whether the spindle returns to its original position
(if it is fully extended or fully compressed) during the non-detection state*1 that
occurs after detection ends and before the next detection begins. An error outputs if
the spindle fails to return to its original position.
The non-detection state is determined by the external timing input. The nondetection state occurs when the external timing input is on. While the external timing
input is on, if the spindle reaches a fully extended (or fully compressed) state even
once*2, this is recognized as normal operation. If the fully extended (or fully
compressed) state is not reached*2, an error is output.
Setting Various Functions
*1
*2
The non-detection state is when the external timing input is on.
The fully compressed state is the position where the HH limit output of the spindle
turns on, and the fully extended state is the position where the LL limit output of the
spindle turns on.
If " USEr " is selected, the jam detection checkpoint can be set at a desired position.
Normal
Fully extended
Error
Fully extended
Not fully extended
Detecting
Detecting
②
①
Start detection
External timing input ON
OFF
ON
HIGH output OFF
GO output ON
OFF
End detection
Start detection
Non-detection
End detection
Start detection
Non-detection
The core alarm is indicated
by both HIGH and LOW
outputs activating at the
same time
LOW output ON
OFF
In the diagram above, detection is started while the spindle is extended (external
timing input is off) and detection ends when the detection point is reached (external
timing input ON: output hold).
Figure (1) is in the non detection state (external timing input ON) and has the spindle
extended without generating an error. Figure (2) has the spindle setting off a core
alarm and thus not being extended so that entering the detection state (external
timing input OFF) generates an error (Core alarm error "
" , HIGH and LOW
criterion output both ON).
5-46
GT2-70-M-E
5-4 Additional Function Setting Mode
■ When " USEr " is selected
When " USEr " is selected for " 24. Jam detection function " , the jam detection
checkpoint (reference point for core alarm) can be set to any position.
Set the position when using with a fixture or when the spindle does not fully extend
(or fully compress) during the non-detection state.
The spindle is always touching the
fixture and does not fully extend
Spindle is not touching
and correct detection
cannot be performed
Stopper
Fixture
Workpiece
(1) During non-detection
5
(3) Jammed
(2) During detection
Setting procedure
1
Enter additional function setting mode, select
" 24. Jam detection function " and select " USEr
(User) " .
" Entering Additional Function Setting Mode "
(page 5-40)
After displaying the "
function) " by using the
" USEr (User) " using the
/
(24. Jam detection
button, select
button.
/
The setting is fixed by pressing the
2
/
button (or the
MODE
button).
Select " SEt PoS " .
" Jam Detection Teaching " (page 5-49)
If " 24. Jam detection function " is set to " on " or " oFF " ,
" SEt PoS " is not displayed.
GT2-70-M-E
5-47
Setting Various Functions
(1) During non-detection, the sensor head is always touching the fixture, so the
spindle is not fully extended (does not reach the position where the LL limit
output turns on).
(2) During detection, the fixture is used to detect the workpiece.
(3) If the spindle jams, detection cannot be performed correctly.
5-4 Additional Function Setting Mode
3
Move to the position that you want to set as the
reference point for the spindle checkpoint and
press the [SET] button.
Teaching is performed to recognize the reference
position for the core alarm.
Pressing the [SET] button at the reference position
causes " SEt " to blink. The position is fixed as the
reference position for the checkpoint.
After fixing the position, the display returns to " SEt PoS " .
5
4
Setting Various Functions
Select " 25. Jam detection checkpoint setting "
and set the jam detection checkpoint (position).
" 25. Jam Detection Checkpoint Setting " (page 550)
Setting range:-199.9999 to 199.9999 (mm)
Initial value:0.5000 (mm)
Jam detection
checkpoint
Teaching
position
When not detecting
The setting is fixed by pressing the
MODE
(or the
button).
5
/
button
End the setting.
MODE
Press the
button or press and hold the
button for at least two seconds to end the setting.
Press
or press
and MODE
hold
for at
least 2 sec
MODE
Return to the main screen
5-48
GT2-70-M-E
5-4 Additional Function Setting Mode
Jam Detection Teaching
Sets the reference point when setting a custom position for the jam detection
checkpoint.
For information about the setting procedure, refer to
" When " USEr " is selected "
(page 5-47).
Note
Jam detection teaching can only be set if " 24. Jam detection
function " is set to " USEr (User) " .
MODE
Press and hold
for at least 2 sec
5
MODE
Press and hold
for at least 2 sec
" Entering Additional Function Setting Mode " (page 5-40)
GT2-70-M-E
5-49
Setting Various Functions
Set reference
position
5-4 Additional Function Setting Mode
25. Jam Detection Checkpoint Setting
Sets a custom position for the jam detection checkpoint.
For information about the setting procedure, refer to
" When " USEr " is selected "
(page 5-47).
Note
Jam detection teaching can only be set if " 24. Jam detection
function " is set to " USEr (User) " .
MODE
Press and hold
for at least 2 sec
5
MODE
Setting Various Functions
Setting value
input screen
MODE
Press and hold
at least 2 sec
for
" Entering Additional Function Setting Mode " (page 5-40)
Item
Default
Setting
Setting range
-199.9999 to 199.9999
0 to 199.9999:
Jam detection checkpoint
setting
Jam detection
checkpoint
Jam detection
teaching
Reference
5-50
Jam detection
determination position
Setting range:
0 to 199.9999
0.5000
When the spindle extends
beyond the position of the
jam detection checkpoint, a
jam detection is triggered.
• Set this parameter according to the value applied in Multiplier or
Calibration.
" 11. Multiplier " (page 5-19)
" 30. Calibration Function Setting " (page 5-52)
• There is no effect from the settings in " 10. Measurement Direction " .
" 10. Measurement Direction " (page 5-18)
• To perform jam detection during compression, set the range to
" -199.9999 to 0 " .
GT2-70-M-E
5-5
Calibration Setting Mode
Entering Calibration Setting Mode
The following method can be used to enter calibration setting mode.
• On the main screen, press and hold the [MODE] button and the right arrow
key at the same time for at least two seconds.
Right arrow key
[MODE] button
5
& lt; Main screen (P.V. value display screen) & gt;
On the main unit, the error display shown to the right
appears and calibration setting mode cannot be entered
when " CAL.noH " is selected in " A1. Calculation Mode " .
Exiting Calibration Setting Mode
Use one of the following methods to exit calibration setting mode and display the
main screen.
• After the settings are complete, press and hold the [MODE] button for at least
two seconds.
• After the settings are complete, press the right arrow key several times until
the setting completion display appears, and press the right arrow key once
more.
Right arrow key
& lt; Setting completion display & gt;
GT2-70-M-E
5-51
Setting Various Functions
Note
5-5 Calibration Setting Mode
30. Calibration Function Setting
After replacing a sensor head, this parameter can be used to perform origin
alignment or span adjustment, which reduces the effects of misalignment that occur
during installation and produces detection values that are closer to the values
achieved before replacement.
MODE
Press and hold
for at least 2 sec
MODE
5
Default
MODE
Setting Various Functions
Adjustment
Press and hold
for at least 2 sec
" Entering Calibration Setting Mode " (page 5-51)
Item
Default
Description
Reset the span adjustment value to the default state.
" 31. 2nd Target Setting " (page 5-54)
Default
Setting
O
Adjustment
Performs origin alignment and span adjustment.
5-52
GT2-70-M-E
5-5 Calibration Setting Mode
1st Detection/Capture
Sets the origin, which is used as the reference for the calibration settings.
Note
The parameter can be set only when " 30. Calibration function setting " is
set to " AdJ (Adjustment) " .
MODE
Press and hold
for at least 2 sec
Displays
alternately
5
1st detection
Setting Various Functions
Detection
reading
MODE
Press and hold
for at least 2 sec
" Entering Calibration Setting Mode " (page 5-51)
Setting procedure
1
Enter the calibration setting mode and select
" 30. Calibration function setting " and then " AdJ
(Adjustment) " .
" 30. Calibration Function Setting " (page 5-52)
2
Select " SEt 1 " .
3
Move to the spindle origin position and press
the [SET] button.
" AdJ " blinks and the origin position (preset value).
" Preset Function (Displaying a value by Adding or Subtracting a Desired
Value) " (page 3-30)
GT2-70-M-E
5-53
5-5 Calibration Setting Mode
31. 2nd Target Setting
Sets the target value for span adjustment.
Note
The parameter can be set only when " 30. Calibration function setting " is
set to " AdJ (Adjustment) " .
MODE
Press and hold
5
for at least 2 sec
MODE
Setting Various Functions
Setting value
input screen
MODE
Press and hold
for at least 2 sec
" Entering Calibration Setting Mode " (page 5-51)
Item
2nd target setting
5-54
Setting range
-199.9999 to 199.9999 (unit: mm)
Initial
value
5.0000
GT2-70-M-E
5-5 Calibration Setting Mode
2nd Detection/Capture
Reads the detection value for span adjustment and corrects for the amount of
difference between the 2nd target value.
Note
The parameter can be set only when " 30. Calibration function setting " is
set to " AdJ (Adjustment) " .
MODE
Press and hold
for at least 2 sec
5
Displays
alternately
Detection
reading
Setting Various Functions
2nd detection
MODE
Press and hold
for at least 2 sec
" Entering Calibration Setting Mode " (page 5-51)
Setting procedure
1
Enter calibration mode and define the 1st detection position.
" 30. Calibration Function Setting " (page 5-52)
" 1st Detection/Capture " (page 5-53)
2
Select " 31. 2nd target setting " and enter the target
value.
3
Select " SEt 2 " .
GT2-70-M-E
5-55
5-5 Calibration Setting Mode
4
Move to the detection position that is to be set
as the 2nd spindle position and press the [SET]
button.
" AdJ " blinks and the difference between the target
value and the detected value is corrected.
5
End the calibration setting.
MODE
Press the
button or press and hold the
button for at least two seconds to end the setting.
Press
or press
andMODE
hold
for at
least 2 sec
MODE
5
Return to the main screen
Note
Setting Various Functions
Reference
5-56
• A calibration error occurs under the following
situations and the error screen is displayed.
And calibration cannot be performed.
• When the 1st position is not determined
Calibration error screen
• When the values between the target and
detection values does not match
• When the results of the span adjustment is more than twice the
factory default value
(Increase the Multiplier before performing calibration.)
• When performing calibration, reset the following parameters:
• HIGH setting value (
" (5) HIGH setting value display " (page 37))
• LOW setting value (
" (6) LOW setting value display " (page 3-8))
• Self-timing level (
" 05. Self-timing Level " (page 5-12))
To reset the span adjustment to the factory default state, select " Default "
in " 30. Calibration function setting " .
" 30. Calibration Function Setting " (page 5-52)
GT2-70-M-E
5-6
Calculation Setting Mode
The calculation setting mode is one of the function setting modes, and it can be set
and used only when an expansion unit is added.
Calculation Setting Mode
This is one of the function setting modes for the main unit when an expansion unit is
added. It performs the calculation setting.
" 5-2 Function Setting Mode " (page 5-6)
MODE
Press and hold
for at least 2 sec
5
MODE
Calculation Mode
MODE
Calculation
dedicated mode*
Press and hold
for at least 2 sec
* This is only available for main units that are connected to two or more expansion
units.
" Entering Function Setting Mode " (page 5-6)
Item
No calculation
Calculation Mode
Calculation
dedicated mode
Description
No calculations are performed. The main unit and all
expansion units operate independently.
Default
Setting
O
The detection values of the main unit and the expansion
units are calculated via the application and the main unit
outputs the criterion result.
" Applications " (page 5-58)
• Calculates expansion unit detection values and outputs
the criterion result without connecting the main unit to the
sensor head.*
• Connected expansion units output the individual criterion
results based on settings and detection values, regardless
of the application being used.
* When using the calculation dedicated mode, connecting a sensor head to the
main unit will cause " Er.noH " to be displayed and the main unit will produce error
output (HIGH criterion output and LOW criterion output are ON simultaneously).
GT2-70-M-E
5-57
Setting Various Functions
No calculation
5-6 Calculation Setting Mode
Applications
The following applications can be used in the calculation mode and calculation
dedicated mode:
Application
Max. value
Min. value
5
Description
The maximum detected value from the
expansion units is taken as a criterion
value.
The minimum detected value from the
expansion units is taken as a criterion
value.
Setting Various Functions
Degree of flatness Extracts maximum and minimum
detected values from the expansion
units, and the difference between
them is taken as a criterion value.
The total of the values from the
Average
expansion units is divided by the
number of units. The resulting average
value is taken as a criterion value.
Reference
Subtracts the display value of the
difference
main unit from each expansion unit
and uses the resulting value as the
criterion value for the expansion unit.
Twist
Warpage
Thickness
The degree of twist calculated based
on the detected values from four
detection points is taken as the
criterion value.
The degree of warpage calculated based
on the detected values from three
detection points is taken as the criterion
value.
Places the detection target between
the expansion units and uses the
thickness as the criterion value.
Max. units
Default
Calculation Reference
Calculation
Setting
page
dedicated
mode
mode
O
1 unit or
more
2 units or
5-65
more
1 unit or
more
2 units or
5-66
more
1 unit or
more
2 units or
5-67
more
1 unit or
more
2 units or
5-68
more
1 unit or
more
------------ *
5-69
Only when
three units
are
connected.
Only when
four units
5-70
are
connected.
Only when
Only when
three units
5-72
two units are
are
connected.
connected.
Only when
Only when
two units
5-74
one unit is
are
connected.
connected.
* During the calculation dedicated mode, " C5. rEF (Reference difference) " is not available.
Note
5-58
• When the calculation function is set, if the number of
expansion units is changed the next time the power is
turned on, the error display as shown to the right appears.
Number of expansion
units error
Reset the error by following the procedure below.
• Turn off the power, and change the number of units back to the previous
number of units, then turn on the power again.
• Reset the calculation function on the main unit.
• The available calculation methods vary depending on the number of expansion
units added.
GT2-70-M-E
5-6 Calculation Setting Mode
Selecting an application
The procedure for selecting an application is as follows.
MODE
Press and hold
for at least 2 sec
MODE
Max. value
Min. value
Degree of
flatness
5
Average
MODE
Press and hold
Setting Various Functions
Reference
difference*
for at least 2 sec
Twist
Warpage
Thickness
* Not displayed when " CAL.noH (calculation dedicated mode) " is selected in " A1.
Calculation mode " .
GT2-70-M-E
5-59
5-6 Calculation Setting Mode
Entering calculation setting mode
The following can be used to enter calculation setting mode.
• On the main screen, press and hold the [MODE] button for at least two
seconds. Enter the function setting mode, then select " CALc " or " CAL. noH " .
" Entering Function Setting Mode " (page 5-6)
[MODE] button
5
Main screen (P.V. value display screen)
Setting Various Functions
Note
Calculation setting mode cannot be entered if there are not any
expansion units.
Exiting calculation setting mode
Use one of the following methods to exit calculation setting mode and display the
main screen.
• After the calculation setting mode settings are complete, press and hold the
[MODE] button for at least two seconds.
• After the calculation setting mode settings are complete, press the right
arrow key several times until the setting completion display appears, then
press the right arrow key once more.
Right arrow key
Setting completion display
5-60
GT2-70-M-E
5-6 Calculation Setting Mode
Precautions for Calculation Setting
■ Response time when the calculation function is used
When the calculation function is used, the response time varies depending on the
response time set in the main unit, the number of units that have been added, and
the types of main/expansion units.
This section describes the response time when the calculation function is used.
" ALL.Go output " when " noCALc " is set in " A1.APL "
The actual ALL.Go output response time of the main unit is determined by either of
the slower one: " the response time of the main unit " or " the value where the time in the
following table is added to the slowest response time set in the expansion unit " .
5
" When " ALL.Go (all go) " is selected " (page 5-32)
Time to be added
(ms)
Number of added
expansion units
Time to be added
(ms)
2 units
5.5
9 units
24.5
3 units
6.5
10 units
29.5
4 units
11.5
11 units
30.5
5 units
12.5
12 units
35.5
6 units
17.5
13 units
36.5
7 units
18.5
14 units
41.5
8 units
23.5
15 units
Setting Various Functions
Number of added
expansion units
42.5
Reference
·
·
GT2-70-M-E
If connecting RS-232C Communication Unit DL-RS1A or the BCD
Output Unit DL-RB1A, add " 7 ms " to the value in the table above.
ALL.Go output is output only on the main unit.
5-61
5-6 Calculation Setting Mode
Criterion output when a setting other than " C5. rEF (Reference difference) " is set
The actual criterion output response time is determined by adding the following time
to the response time (3 to 1000 ms) that has been set in the main unit.
Number of added
expansion units
Time to be added
(ms)
Number of added
expansion units
Time to be added
(ms)
2 units
5.5
9 units
24.5
3 units
6.5
10 units
29.5
4 units
11.5
11 units
30.5
5 units
12.5
12 units
35.5
6 units
17.5
13 units
36.5
7 units
18.5
14 units
41.5
8 units
23.5
15 units
42.5
5
Reference
·
Setting Various Functions
·
When " RS-232C Communication Unit DL-RS1A " or " BCD Output Unit
DL-RB1A " is connected, add " 7 ms " to the above time.
When a setting other than " C5. rEF " is set, the criterion output is output
only on the main unit.
Criterion output when " C5. rEF (Reference difference) " is set
The actual criterion output response time is determined by adding the following time
to the response time (3 to 1000 ms) that has been set in the main unit.
" C5. Reference Difference " (page 5-69)
Number of added
expansion units
Time to be added
(ms)
Number of added
expansion units
Time to be added
(ms)
2 units
3 units
5.5
9 units
24.5
6.5
10 units
29.5
4 units
11.5
11 units
30.5
5 units
12.5
12 units
35.5
6 units
17.5
13 units
36.5
7 units
18.5
14 units
41.5
8 units
23.5
15 units
42.5
Reference
5-62
When " RS-232C Communication Unit DL-RS1A " or " BCD Output Unit
DL-RB1A " is connected, add " 7 ms " to the above time only for the
expansion unit.
GT2-70-M-E
5-6 Calculation Setting Mode
" ALL.Go output " when " C5. rEF (Reference difference) " is set
The actual ALL.Go output response time is determined by adding the following time
to the response time (3 to 1000 ms) that has been set in the main unit.
" When " ALL.Go (all go) " is selected " (page 5-32)
Number of added
expansion units
Time to be added
(ms)
Number of added
expansion units
Time to be added
(ms)
2 units
3 units
8.0
9 units
36.5
9.5
10 units
44.0
4 units
17.0
11 units
45.5
5 units
18.5
12 units
53.0
6 units
26.0
13 units
54.5
7 units
27.5
14 units
62.0
8 units
35.0
15 units
63.5
·
·
When " RS-232C Communication Unit DL-RS1A " or " BCD Output Unit
DL-RB1A " is connected, add " 7 ms " to the above time.
ALL.Go output is output only on the main unit.
Criterion output when " CAL.noH (calculation dedicated mode) " is set
The actual criterion output response time is determined by adding the following time
to the response time (3 to 1000 ms) that has been set in the main unit.
" Calculation Setting Mode " (page 5-57)
Number of
added
expansion units
Time to be added (ms)
Time to be added (ms)
2 units
Number of
added
expansion units
Main unit
Expansion
unit
9 units
Main unit
Expansion
unit
24.5
0
3 units
6.5
0
10 units
29.5
0
4 units
11.5
0
11 units
30.5
0
5 units
12.5
0
12 units
35.5
0
6 units
17.5
0
13 units
36.5
0
7 units
18.5
0
14 units
41.5
0
8 units
23.5
0
15 units
42.5
0
Reference
GT2-70-M-E
When " RS-232C Communication Unit DL-RS1A " or " BCD Output Unit
DL-RB1A " is connected, add " 7 ms " to the above time only for the main
unit.
5-63
Setting Various Functions
Reference
5
5-6 Calculation Setting Mode
" ALL.Go output " when " CAL.noH (calculation dedicated mode) " is set
The actual ALL.Go output response time is determined by adding the following time
to the response time (3 to 1000 ms) that has been set in the main unit.
" Calculation Setting Mode " (page 5-57)
" When " ALL.Go (all go) " is selected " (page 5-32)
Number of added
expansion units
Time to be added
(ms)
Number of added
expansion units
Time to be added
(ms)
9 units
24.5
2 units
3 units
29.5
11 units
30.5
12.5
12 units
35.5
6 units
17.5
13 units
36.5
7 units
Setting Various Functions
10 units
11.5
5 units
18.5
14 units
41.5
8 units
5
6.5
4 units
23.5
15 units
42.5
Reference
·
·
When " RS-232C Communication Unit DL-RS1A " or " BCD Output Unit
DL-RB1A " is connected, add " 7 ms " to the above time only for the main
unit.
ALL.Go output is output only on the main unit.
" ALL.Lt output " when " CAL.noH (calculation dedicated mode) " is set
The ALL.Lt output response time is determined by adding the following time to the
response time (3 to 1000 ms) that has been set in the main unit.
" Calculation Setting Mode " (page 5-57)
" When " ALL.Lt (all limit output) " is selected " (page 5-32)
Number of added
expansion units
Time to be added
(ms)
Time to be added
(ms)
9 units
2 units
Number of added
expansion units
24.5
3 units
6.5
10 units
29.5
4 units
11.5
11 units
30.5
5 units
12.5
12 units
35.5
6 units
17.5
13 units
36.5
7 units
18.5
14 units
41.5
8 units
23.5
15 units
42.5
Reference
·
·
5-64
When " RS-232C Communication Unit DL-RS1A " or " BCD Output Unit
DL-RB1A " is connected, add " 7 ms " to the above time only for the main
unit.
ALL.Lt output is output only on the main unit.
GT2-70-M-E
5-6 Calculation Setting Mode
C1. Max. Value
When " C1. Max. Value " is selected, the maximum value detected from the main unit
and expansion units is used as the value.
Sensor head used to detect maximum
C
A
B
The value detected by the
sensor head B is taken as
the criterion value.
Main screens that can be displayed are as follows:
Sensor amplifier
Main unit
Calculation
Mode
Expansion
Calculation
unit
dedicated
mode
*1
*2
*3
P.V. value
display
O*1
Calculated
HIGH /LOW
R.V. value
value
setting
display
display
display
O
O*2
O*3
HH/LL
setting
display
O
Preset value
setting
display
O
-
-
O*3
-
-
O
O
-
O
O
O
O
Displays the largest detection value (criterion value) from the main unit and expansion
units according to the hold settings.
Displays the largest detection value from the main unit and expansion units as
an R.V. value (without holding the value when using hold).
Displays the detected value for the sensor head connected to each amplifier
as an R.V. value (without holding the value when using hold).
■ Output
Outputs are as follows:
Sensor amplifier
Main unit
Output
The maximum value detected with the main unit and expansion units is
taken as the value and the result is output.
Calculation
Criterion output is not performed (always off).
Mode
Expansion
Calculation
unit
Criterion output is performed individually based on the detection value from
dedicated
the connected sensor head.
mode
GT2-70-M-E
5-65
Setting Various Functions
■ Amplifier display
5
5-6 Calculation Setting Mode
C2. Min. Value
When " C2. Min. Value " is selected, the minimum value detected from the main unit
and expansion units used as the value.
Sensor head used to detect minimum
C
A
B
The value detected by the
sensor head A is taken as
the value.
5
Setting Various Functions
■ Amplifier display
Main screens that can be displayed are as follows:
Sensor amplifier
Main unit
Calculation
Mode
Expansion
Calculation
unit
dedicated
mode
*1
*2
*3
P.V. value
display
O*1
Calculated
HIGH /LOW
R.V. value
value
setting
display
display
display
O
O*2
O*3
HH/LL
setting
display
O
Preset value
setting
display
O
-
-
O*3
-
-
O
O
-
O
O
O
O
Displays the smallest detection value (criterion value) from the main unit and
expansion units according to the hold settings.
Displays the smallest detection value from the main unit and expansion units
as an R.V. value (without holding the value when using hold).
Displays the detected value for the sensor head connected to each amplifier
as an R.V. value (without holding the value when using hold).
■ Output
Outputs are as follows:
Sensor amplifier
Main unit
Output
The minimum value detected from the main unit and expansion units is
taken as a value, and the result is output.
Calculation
Criterion output is not performed (always off).
Mode
Expansion
Calculation
unit
Criterion output is performed individually based on the detection value from
dedicated
the connected sensor head.
mode
5-66
GT2-70-M-E
5-6 Calculation Setting Mode
C3. Degree of flatness
When " C3. Degree of flatness " is selected, the maximum and minimum values
detected with the main unit and expansion units are extracted and the difference
between them (maximum value - minimum value) is used as a the value.
Sensor head used to detect maximum
Sensor head used to detect minimum
B
C
D
A
5
■ Amplifier display
Main screens that can be displayed are as follows:
Sensor amplifier
Main unit
Calculation
Mode
Expansion
Calculation
unit
dedicated
mode
*1
*2
*3
P.V. value
display
Calculated
value display
R.V. value
display
HIGH /LOW
HH/LL
Preset value
setting display setting display setting display
O
O
O
O*1
O*2
O*3
-
-
O*3
-
-
O
O
-
O
O
O
O
Displays the result (criterion value) after calculating the maximum value minus the
minimum value from the main unit and expansion units according to the hold settings.
Displays the difference between the maximum value and minimum value from
the main unit and expansion units as an R.V. value (without holding the value
when using hold).
Displays the detected value for the sensor head connected to each amplifier
as an R.V. value (without holding the value when using hold).
■ Output
Outputs are as follows:
Sensor amplifier
Main unit
Output
The calculation result of the maximum value minus the minimum value
detected with the main unit and expansion units is taken as the value and
the result is output.
Calculation
Criterion output is not performed (always off).
Mode
Expansion
Calculation
unit
Criterion output is performed individually based on the detection value from
dedicated
the connected sensor head.
mode
GT2-70-M-E
5-67
Setting Various Functions
The criterion value is calculated as the detection value of sensor
head B minus the detection value of sensor head C.
5-6 Calculation Setting Mode
C4. Average
When " C4. Average " is selected, the average detected value from the main unit and
expansion units is used as the value.
X2
X3
X4
X1
The formula for obtaining an average
value is shown below.
(X1 + X2 + X3 + ... Xn) / n
n: The total number of sensor amplifiers
that are connected.
5
Setting Various Functions
■ Amplifier display
Main screens that can be displayed are as follows:
Sensor amplifier
Main unit
Calculation
Mode
Expansion
Calculation
unit
dedicated
mode
*1
*2
*3
P.V. value
display
O*1
Calculated
HIGH /LOW
R.V. value
value
setting
display
display
display
O
O*2
O*3
HH/LL
setting
display
O
Preset value
setting
display
O
-
-
O*3
-
-
O
O
-
O
O
O
O
Performs calculations to average the detection values from the main unit and
expansion units, and then displays the calculation result (criterion value)
according to the hold settings.
Performs calculations to average the detection values from the main unit and
expansion units, and then displays the calculation result as an R.V. value
(without holding the value when using hold).
Displays the detected value for the sensor head connected to each amplifier
as an R.V. value (without holding the value when using hold).
■ Output
Outputs are as follows:
Sensor amplifier
Main unit
Output
Performs calculation to obtain an average value of those detected from the
main unit and expansion units. The resulting value of calculation is taken as
the value and the result is output.
Calculation
Criterion output is not performed (always off).
Mode
Expansion
Calculation
unit
Criterion output is performed individually based on the detection value from
dedicated
the connected sensor head.
mode
5-68
GT2-70-M-E
5-6 Calculation Setting Mode
C5. Reference Difference
If " C5. Reference difference " is selected, each expansion unit calculates (Detected
value in the expansion unit) - (detected value in the main unit) based on the main
unit. The calculation result is displayed as the value.
Note
Can be set only when " CALc (Calculation mode) " is selected in " A1.
Calculation Mode " .
X3 (expansion unit 2)
X2 (expansion unit 1)
X1 (main unit)
5
■ Amplifier display
Main screens that can be displayed are as follows:
Sensor amplifier
Main unit
Expansion unit
P.V. value
display
O
O*1
Calculated
HIGH /LOW
R.V. value
value
setting
display
display
display
O
O*3
O
O*2
O*3
HH/LL
setting
display
O
O
Preset value
setting
display
O
O
*1
Performs calculation to obtain a reference difference of " Expansion unit - main
unit " based on the main unit, and then displays the calculation result (criterion
value) according to the hold settings.
*2
Performs the calculation to obtain a reference difference of " Expansion unit main unit " based on the main unit, and then displays the calculation result by
keeping the R.V. value (without holding the calculation result even when using
the hold function).
*3
Displays the detected value for the sensor head connected to each amplifier as
an R.V. value (without holding the value when using hold).
■ Output
Outputs are as follows:
Sensor amplifier
Main unit
Expansion unit
GT2-70-M-E
Output
Calculation is not performed and the criterion is output based on the
detection value from the main unit according to each setting.
" Detection value of this unit " minus " Detection value of the main unit " is
calculated, and the calculation result is output as the criterion value for the
criterion result.
5-69
Setting Various Functions
The formula to obtain a reference
difference is shown below.
Expansion unit 1 = X2 - X1
Expansion unit 2 = X3 - X1
.
.
.
5-6 Calculation Setting Mode
C6. Twist
If " C6. Twist " is selected, the degree of twist is calculated from the four detected
values and the calculation result is displayed as the value.
Note
• When " CALc (Calculation mode) " is selected in " A1. Calculation mode " :
" C6. Twist " can be selected only when four units are configured (1 main unit + 3
expansion units).
• When " CAL.noH (Calculation dedicated mode) " is selected in " A1. Calculation mode " :
" C6. Twist " can be selected only when five units are configured (1 main unit + 4
expansion units).
5
Panel mounting
Setting Various Functions
X4
X3
X1
DIN-rail mounting
X1 Main unit
X2 Expansion unit
X3 Expansion unit
X4 Expansion unit
X4
X1
X2
X3
X4 Expansion unit
X3 Expansion unit
X2 Expansion unit
X1 Main unit
X2
The formula to obtain a degree of twist is shown below.
(X1 - X2) - (X4 - X3)
* X1 is a main unit and X2 to X4 are expansion units.
■ Amplifier display
Main screens that can be displayed are as follows:
Sensor amplifier
Main unit
Calculation
Mode
Expansion
Calculation
unit
dedicated
mode
*1
*2
*3
5-70
P.V. value
display
O*1
Calculated
value display
O*2
R.V. value
display
O*3
HIGH /LOW
HH/LL
Preset value
setting display setting display setting display
O
O
O
-
-
O*3
-
-
O
O
-
O
O
O
O
Performs calculations to obtain the degree of twist from the detection values
from the main unit and expansion units, and then displays the calculation result
(criterion value) according to the hold settings.
Performs calculations to obtain the degree of twist from the detection values
from the main unit and expansion units, and then displays the calculation result
as an R.V. value (without holding the value when using hold).
Displays the detected value for the sensor head connected to each amplifier as an
R.V. value (without holding the value when using hold).
GT2-70-M-E
5-6 Calculation Setting Mode
■ Output
Outputs are as follows:
Sensor amplifier
Main unit
Output
Performs calculation to obtain a degree of twist by using the values
detected from the main unit and expansion units. The resulting value of
calculation is taken as the value and the result is output.
Calculation
Criterion output is not performed (always off).
Mode
Expansion
Calculation
unit
Criterion output is performed individually based on the detection value from
dedicated
the connected sensor head.
mode
5
Setting Various Functions
GT2-70-M-E
5-71
5-6 Calculation Setting Mode
C7. Warpage
If " C7. Warpage " is selected, the degree of warpage is calculated from the three
detected values and the calculation result is displayed as the value.
Note
• When " CALc (Calculation mode) " is selected in " A1. Calculation mode " :
" C7. Warpage " can be selected only when three units are configured (1 main unit + 2
expansion units).
• When " CAL.noH (Calculation dedicated mode) " is selected in " A1. Calculation mode " :
" C7. Warpage " can be selected only when four units are configured (1 main unit + 3
expansion units).
5
DIN-rail mounting
Panel mounting
Setting Various Functions
X1 Main unit
X2 Expansion unit
X3 Expansion unit
X1
X3 Expansion unit
X2 Expansion unit
X1 Main unit
X1
X3
X2
X3
X2
The formula to obtain a warpage is shown below.
(X1 + X3) / 2 - X2
* X1 is a main unit and X2 and X3 are expansion units.
■ Amplifier display
Main screens that can be displayed are as follows:
Sensor amplifier
Main unit
Calculation
Mode
Expansion
Calculation
unit
dedicated
mode
*1
*2
*3
5-72
P.V. value
display
Calculated
value display
R.V. value
display
HIGH /LOW
HH/LL
Preset value
setting display setting display setting display
O
O
O
O*1
O*2
O*3
-
-
O*3
-
-
O
O
-
O
O
O
O
Performs calculations to obtain the warpage from the detection values from the
main unit and expansion units, and then displays the calculation result
(criterion value) according to the hold settings.
Performs calculations to obtain the warpage from the detection values from the
main unit and expansion units, and then displays the calculation result as an
R.V. value (without holding the value when using hold).
Displays the detected value for the sensor head connected to each amplifier as an
R.V. value (without holding the value when using hold).
GT2-70-M-E
5-6 Calculation Setting Mode
■ Output
Outputs are as follows:
Sensor amplifier
Main unit
Output
Performs calculation to obtain a warpage value by using the values
detected from the main unit and expansion units. The resulting value of
calculation is taken as the value and the result is output.
Calculation
Criterion output is not performed (always off).
Mode
Expansion
Calculation
unit
Criterion output is performed individually based on the detection value from
dedicated
the connected sensor head.
mode
5
Setting Various Functions
GT2-70-M-E
5-73
5-6 Calculation Setting Mode
C8. Thickness
If " C8. Thickness " is selected, the thickness of the target is calculated from the
detected value obtained by placing the target between the two sensor heads. The
calculation result is displayed as the value.
Note
• When " CALc (Calculation mode) " is selected in " A1. Calculation mode " :
" C8. Thickness " can be selected only when two units are configured (1 main unit + 1
expansion unit).
• When " CAL.noH (Calculation dedicated mode) " is selected in " A1. Calculation mode " :
" C8. Thickness " can be selected only when three units are configured (1 main unit + 2
expansion units).
5
X1
Setting Various Functions
The formula to obtain a thickness is shown below.
X1 + X2
X2
■ Amplifier display
Main screens that can be displayed are as follows:
Sensor amplifier
Main unit
Calculation
Mode
Expansion
Calculation
unit
dedicated
mode
*1
*2
*3
5-74
P.V. value
display
O*1
Calculated
HIGH /LOW
R.V. value
value
setting
display
display
display
O
O*2
O*3
HH/LL
setting
display
O
Preset value
setting
display
O
-
-
O*3
-
-
O
O
-
O
O
O
O
Performs calculations to obtain the thickness from the detection values from
the main unit and expansion units, and then displays the calculation result
(criterion value) according to the hold settings.
Performs calculations to obtain the thickness from the detection values from
the main unit and expansion units, and then displays the calculation result as
an R.V. value (without holding the value when using hold).
Displays the detected value for the sensor head connected to each amplifier
as an R.V. value (without holding the value when using hold).
GT2-70-M-E
5-6 Calculation Setting Mode
■ Output
Outputs are as follows:
Sensor amplifier
Main unit
Output
Performs calculation to obtain a thickness by using detected values from
the main unit and expansion units. The resulting value of calculation is taken
as a criterion value and the result is output.
Calculation
Criterion output is not performed (always off).
Mode
Expansion
Calculation
unit
Criterion output is performed individually based on the detection value from
dedicated
the connected sensor head.
mode
■ Origin alignment when " C8. Thickness " is selected
Perform the origin alignment using the following steps if " C8. Thickness " is selected
in the calculation mode.
5
Setting procedure
Setting Various Functions
1
Display the preset value display from the
main screen of the main and expansion
units.
" (8) Preset value setting display " (page 3-10)
2
Set preset values for the main and expansion
units.
Main
unit
Set the following preset values:
• Main unit: Detected value of the master
workpiece (target value)
• Expansion unit: 0.0000
3
4
Detects the master workpiece.
& lt; When setting the target value to 5.000 & gt;
Expansion
unit
X1
Perform the origin alignment on the main
and expansion units.
To perform the origin alignment, press the
[PRESET] button.
Master workpiece
X2
" Origin Alignment " (page 3-11)
GT2-70-M-E
5-75
5-6 Calculation Setting Mode
MEMO
5
Setting Various Functions
5-76
GT2-70-M-E
Functions and Settings of GT2-71D
This chapter describes the functions and settings of GT2-71D
(pulse output type).
6-1
Pulse output settings................................................ 6-3
6-3
6
GT2-71D (pulse output type) ................................... 6-2
6-2
6
Outputting Current Position Information................... 6-5
GT2-70-M-E
6-1
6-1
GT2-71D (pulse output type)
Names of parts of the amplifier
Advanced setting switches
6
Input indicator
Pulse delivery indicator
Power/alarm indicator
Item
Description
Power/alarm indicator
Functions and Settings of GT2-71D
Pulse delivery indicator
Flashes green when delivering a pulse.
Input indicator
6
Lights up green when the power is turned on.
Flashes red when there is an error*.
Lights green when there is current position request input.
Advanced setting switches
Sets the advanced information for pulse output.
* An error occurs in the following situations.
• For 700 ms after power turns on (power on reset time)
• Head is not connected or becomes disconnected
• Overcurrent flows through the output
Output signal
The signals output by GT2-71D are A, B, and Z phase signals, which are voltage
differential format line driver output that is compliant with EIA-422.
Phase A
Phase B
Phase Z
Z phase turns on when the sensor head spindle is detected at
home position.
6-2
Home position
(Set as a factory default;
it cannot be changed.)
GT2-70-M-E
6-2
Pulse output settings
Advanced setting switch
Perform pulse output settings with the advanced setting switch.
Setting item
Switch No.
1
Description
Set A phase or B phase (A phase or B phase) as the
minimum phase difference.
0.5µs
2.5µs*
ON
Minimum phase
difference
2
ON
1 2
5µs
25µs
ON
ON
1 2
1 2
1 2
* This is the factory default setting.
Set the pulse resolution.
3
0.1µm
0.5µm*
ON
ON
1µm
10µm
ON
6
ON
Pulse resolution
3 4
3 4
3 4
3 4
Functions and Settings of GT2-71D
4
* This is the factory default setting.
Sets the pulse fluctuation direction over the operation
direction for the sensor head spindle.
Pulse fluctuation
direction
Pulse expands when the
spindle is pushed in*
5
Pulse shrinks when the
spindle is pushed in
ON
ON
5
5
* This is the factory default setting.
(Not used)
6
––––––
Note
When using a sensor head other than GT2-H12K(L), even if the pulse
resolution is set to 0.1 µm, a resolution of 0.5 µm is used.
Reference
Phase A cycle
Allowable frequency
of the counter
0.5 μs
2 μs
500 kHz
2.5 μs
10 μs
100 kHz
5 μs
20 μs
50 kHz
25 μs
GT2-70-M-E
Phase A /phase B minimum
phase difference
100 μs
10 kHz
6-3
6-2 Pulse output settings
Minimum phase difference
Set the minimum phase difference of phase A and phase B (phase A and phase B ).
Phase A
Phase B
Minimum phase difference: 2.5 μs
Pulse fluctuation direction
■ Direction where pulse increases when the spindle contracts
6
When advanced setting switch 5 is turned off (factory default setting), the pulse increases
when the spindle contracts, and the pulse decreases when the spindle extends.
ON
Phase A (Black wire)
Functions and Settings of GT2-71D
OFF
ON
Phase B (White wire)
OFF
ON
Phase A (Black wire)
OFF
ON
Phase B (White wire)
OFF
■ Direction where pulse increases when the spindle extends
When advanced setting switch 5 is turned on, the pulse increases when the spindle
extends, and the pulse decreases when the spindle contracts.
ON
Phase A (Black wire)
OFF
ON
Phase B (White wire)
OFF
ON
Phase A (Black wire)
OFF
ON
Phase B (White wire)
6-4
OFF
GT2-70-M-E
6-3
Outputting Current Position Information
This section describes functions of GT2-71D.
Current position notification output function
When the automatic current position request input line (pink wire) is turned off from
on, a pulse is output from the home position to the current mechanical position of the
spindle.
This function can be used when there is a difference between the counter value and
the measurement position, such as cases where the power is turned off during
measurement or other troubles occur.
" Sensor Amplifier Wiring " (Page 2-9)
ON
Current position
request input OFF
ON
Phase A (Black wire)
OFF
6
ON
Phase B (White wire)
OFF
ON
OFF
(1)
(2)
(3)
(1) When the automatic current position request input (pink wire) is turned off, the
pulse of the spindle is output according to the amount of movement.
(2) When the automatic current position request input (pink wire) is turned on, all
pulse outputs are turned off.
(3) When the automatic current position request input (pink wire) is turned from on
to off, the number of pulses from the home to the current position is output.
GT2-70-M-E
6-5
Functions and Settings of GT2-71D
Phase Z (Orange wire)
6-3 Outputting Current Position Information
MEMO
6
Functions and Settings of GT2-71D
6-6
GT2-70-M-E
Specifications
7
This chapter describes the specifications, circuit diagrams, and
dimensions of the GT2-70 Series.
7-1
Specifications........................................................... 7-2
7-2
I/O Diagram..............................................................7-8
7-3
Pulse Output Type Circuit Diagram........................ 7-11
7-4
Timing Chart .......................................................... 7-12
7-5
7
Dimensions ............................................................7-16
GT2-70-M-E
7-1
7-1
Specifications
Sensor Head
■ Normal type (GT2-H12/H12L/H12K/H12KL/H32/H32L/H50)
Item
Model
Detection system
Specifications
GT2-H12K GT2-H12KL GT2-H12
GT2-H12L
GT2-H32
GT2-H32L
GT2-H50
Quartz glass scale, C-MOS image sensor projection system
Absolute type (without tracking error)
Measuring range
12mm
Resolution
Indication accuracy*1
1μm(P-P)
32mm
0.1μm
50mm
0.5μm
2μm(P-P)
3μm(P-P)
3.5μm(P-P)
When installed
facing down
0.4N
1.0N
0.4N
2.1N
1.2N
3.2N
Measuring When installed
sideways
force*2
0.9N
0.3N
0.9N
0.3N
1.8N
0.9N
2.8N
When installed
facing up
7
1.0N
0.8N
0.2N
0.8N
0.2N
1.5N
0.6N
2.4N
Mechanical response*1
10Hz
4Hz
10Hz
4Hz
6Hz
5Hz
7Hz
-
IP67
Operation indicator
Specifications
Enclosure
rating
2-color LED (red, green)
IP67
-
IP67
-
IP67
Surrounding air
temperature
-10 to +55°C (No freezing)
Relative
humidity
35 to 85%RH (No condensation)
Vibration
Environmental
resistance
10 to 55 Hz, Compound amplitude: 1.5 mm, 2 hours each in X, Y, and Z axis
Main unit
Material
Dust boot
Contact
point *3
Cable
Weight (excluding cable)
*1
*2
*3
7-2
Main unit cover: zinc die-cast, Indicator: polyarylate (PAR)
NBR
-
NBR
SUS304,
tungsten carbide
-
NBR
-
NBR
SUS304, SUS440C
Sold separately (connected to M8 connector)
Approx. 95 g
Approx. 270 g
Approx. 320 g
The value is at the surrounding air temperature of 20°C.
This is typical value at the center of measuring range. The measuring force
varies depending on the mounted condition of the dust protective boot.
The contact is available as an option.
GT2-70-M-E
7-1 Specifications
■ Air cylinder type (GT2-A12/A12L/A12K/A12KL/A32/A50)
Item
Model
Detection system
Specifications
GT2-A12K
GT2-A12KL
GT2-A12
GT2-A12L
GT2-A32
GT2-A50
Quartz glass scale, C-MOS image sensor projection system
Absolute type (without tracking error)
Measuring range
12mm
Resolution
Indication accuracy*1
32mm
0.1μm
1μm(P-P)
50mm
0.5μm
2μm(P-P)
3μm(P-P)
3.5μm(P-P)
0.4N
2.1N
3.2N
1.1N
0.3N
1.8N
2.8N
1.0N
0.2N
1.5N
2.4N
IP67*3
IP67*3
When installed
facing down
1.2N
0.4N
1.2N
Measuring When installed
sideways
force*2
1.1N
0.3N
When installed
facing up
1.0N
0.2N
Operation indicator
2-color LED (red, green)
Pressure range
0.25 to 0.5 MPa
Max pressure
1.0MPa
Fluid to use
Enclosure
rating
Dry air
IP67*3
IP67*3
-
-
0 to +55°C (No freezing)
Relative
humidity
35 to 85%RH (No condensation)
10 to 55 Hz, Compound amplitude: 1.5 mm, 2 hours each in X, Y, and Z axis
Main unit
Main unit cover: zinc die-cast, Cylinder: aluminum alloy,
Air coupling socket (resin part): polyacetal,
Air coupling socket (metal part): nickel-plated brass,
Indicator: polyarylate
Material
Dust boot
Contact
point *5
Cable
Weight (excluding cable)
*1
*2
*3
*4
*5
NBR
-
NBR
SUS304, tungsten carbide
-
NBR
NBR
SUS304, SUS440C
Sold separately (connected to M8 connector)
Approx. 145 g
Approx. 340 g
Approx. 405 g
The value is at the surrounding air temperature of 20°C.
This is typical value at the center of measuring range. The measuring force
varies depending on the mounted condition of the dust protective boot.
Connect an air tube to the exhaust valve so that no foreign material enters
inside from the valve.
When mounting bracket D (OP-84327) is used for the GT2-A32/A50, the
compound amplitude is 0.75 mm.
The contact is available as an option.
GT2-70-M-E
7-3
Specifications
Surrounding air
temperature
Vibration*4
Environmental
resistance
7
7-1 Specifications
Sensor Amplifier
■ GT2-71(C)N/71(C)P/72(C)N/72(C)P/75N/75P/76N/76P/71MCN/71MCP
Item
Mounting type *1
Type
Main unit/
Expansion unit *2
NPN output
Model
PNP output
Number of units that can be added *2
Supply voltage *2
Display range
Display resolution
Sampling rate
7
Specifications
Specifications
DIN rail mount
Panel mount
DIN rail mount
Expansion
Expansion
Main unit
Main unit
Main unit
unit
unit
GT2-71(C)N GT2-72(C)N GT2-75N GT2-76N
GT2-71MCN
GT2-71(C)P GT2-72(C)P GT2-75P GT2-76P
GT2-71MCP
Up to 14 expansion units for 1 main unit
10 to 30 VDC, Class 2 including 10% ripple (P-P). 20 to 30 VDC, Class 2 including 10% ripple (P-P).
-199.9999 to 199.9999
0.1 μm
1000 times/sec
2700 mW max.
Normal
2200 mW max. (73.3 mA max. at 30 V)
(90 mA max. at 30 V)
Current
Power saving
2300 mW max.
1800 mW max. (60.0 mA max. at 30 V)
consumption
(eco half)
(76.7 mA max. at 30 V)
2200 mW max.
Power saving (eco) 1700 mW max. (56.7 mA max. at 30 V)
(73.3 mA max. at 30 V)
Response time
hsp (3 ms), 5 ms, 10 ms, 100 ms, 500 ms, 1 s
Control output
NPN
NPN open collector 40 V 50 mA max. Residual voltage: 1 V max. *2
(HH/HIGH/GO/
PNP
PNP open collector 30 V 50 mA max. Residual voltage: 1 V max. *2
LOW/LL) *3
Timing input
Input time: 2 ms min.
Preset input
Control input
Reset input
Input time: 20 ms min.
Bank input
4 to 20 mA, Maximum load resistance 350Ω (Can
Output range
–––––––––––––––
be set anywhere within the analog output range)
Analog
output
Response
Specified response time + 1 ms
–––––––––––––––
time
Surrounding air
-10 to +50°C (No freezing) *2
*2
Environmental temperature
resistance Relative humidity
35 to 85%RH (No condensation)
Vibration
10 to 55 Hz, Horizontal amplitude: 1.5 mm, 2 hours each in X, Y, and Z axis
Main unit cover/Front cover: Polycarbonate (PC),
Keytop: Polyacetal (POM),
Material
Front sheet: Polyethylene terephthalate (PET),
Cable: Polyvinyl chloride (PVC)
GT2-71N/
Approx. 140 g (Including a power cable)
71P/72N/72P
GT2-75N/
Approx. 140 g (Including a panel mounting bracket, front protective
Weight
75P/76N/76P
cover, power cable)
GT2-71(M)CN/
Approx. 70 g
71(M)CP/72CN/72CP
7-4
GT2-70-M-E
7-1 Specifications
*1
*2
*3
When using the DIN rail mount type unit, be sure to mount it to a DIN rail (fixed to
a metal plate). Use the end unit (OP-26751) when connecting expansion units.
When adding an expansion unit(s), the following restrictions apply depending on
the number of connected units.
When connecting 2 to 8 units including the main unit
• Supply voltage: 20 to 30 VDC
• Control output current: 20 mA max.
• (GT2-71MCN/71MCP only) surrounding air temperature: -10 to +45°C
When connecting 9 to 15 units including the main unit
• Supply voltage: 20 to 30 VDC
• Control output current:
10 mA max. (including the output current of the DL-RB1A)
• Residual voltage: 1.5 V max
• (GT2-71MCN/71MCP only) surrounding air temperature: -10 to +45°C
HH and LL are not available for GT2-71MCN/71MCP.
■ GT2-71D
Specifications
DIN rail mount
7
Main unit
GT2-71D
Expansion not possible
10 to 30 VDC, including 10% ripple (P-P). Class 2
Power indicator (green), alarm indicator (red),
Indicators
pulse output indicator (green), input indicator (green)
Pulse resolution
Select from 0.1 μm, 0.5 μm, 1 μm, 10 μm.
Power consumption
1600 mW or less (53.3 mA or less with 30 V)
Minimum phase difference
Select from 0.5 μs, 2.5 μs, 5 μs, 25 μs.
Control input (homing)
No-voltage input (with contact, without contact), input time 20 ms or more
Output signal
Phase A/B/Z 90° phase difference, differential square-wave (EIA-422 compliant)
Output signal level
+5 V
Surrounding
-10 to +50°C (No freezing)
Environmental air temperature
resistance Relative humidity
35 to 85%RH (No condensation)
Vibration 10 to 55 Hz, Horizontal amplitude: 1.5 mm, 2 hours each in X, Y, and Z axis
Material
Main unit cover
Polycarbonate (PC)
Weight
Approx. 110 g (including a power cable)
GT2-70-M-E
7-5
Specifications
Item
Mounting type
Type
Main unit/
Expansion unit
Model
Number of units that can be added
Supply voltage
7-1 Specifications
Status Table
Amplifier
State
Control
output
Control input
Digital
display
Criterion
indicator
Normal
No. of
digits for
the
detection
result*1
Criterion
result
Yes
Criterion
standby
" ------ "
Off
No
No
During setting
Setting
display
According
to detection
According
to detection
According
to detection
During error
Error
display
HIGH/
LOW on
Bank
switching
Yes
No
Detecting
(P.V./R.V.)
7
When power is
turned on
Specifications
*1
*2
*3
*4
Preset
* During key lock
only
Criterion
output
indicator
On *3
Criterion
result
When all
are OFF:
Off
All OFF
Off
Off
( " Er.Chk " or
" ErC "
according to
detection)
Yes
No*2
(All ON when
N.C. is
selected)
Criterion
result
HIGH/
LOW
output
All OFF
(All ON when
N.C. is
selected)
Off
Blinks*4
Lights in
red
Off
When the detection result is out of the display range (-199.9999 to 199.9999),
-FFFF/FFFF is displayed.
" Er.Chk " , " ErC " , " Er.com " , and " Er.CAL " are on ( " ErH " , " ErE " , and " Er.Unit " are off)
GO: green, HH/HIGH/LOW/LL: red (For HH/LL, when " 5out (5 output) " is selected)
GO: green, HH/HIGH/LOW/LL/All OFF (All ON when N.C. is selected): red (For
HH/LL, when " 5out (5 output) " is selected)
Reference
When the power save function is set, the state changes to the following.
" 23. Power Save Function " (Page 5-44)
State
HALF
ALL
*
7-6
Timing
Sensor
head
Amplifier
Criterion indicator
Normal display or
*
Animation display
normal operations
Off
Off
Digital display
Sensor head
Normal display or
normal operations
Off
Displays one segment at a time sequentially.
GT2-70-M-E
7-1 Specifications
Power On Reset Time
The following table shows the time from when the power is turned on until the sensor
outputs a signal.
Note that the times depend on the response times.
Response time
hsp (3 ms)
5 ms
10 ms
100 ms
500 ms
1000 ms
Time until output
Approx. 3 s
Approx. 3 s
Approx. 3 s
Approx. 3 s
Approx. 3.5 s
Approx. 4 s
* • Approx. 0.7 seconds for the GT2-71D.
• When the GT2-70 Series expansion unit is connected to the GT-70A Series main
unit, the power-on reset time for the GT2 Series expansion unit is 3.5 seconds
more than the time presented above.
" 03. Response Time " (Page 5-9)
7
Specifications
GT2-70-M-E
7-7
7-2
I/O Diagram
I/O Diagram
■ GT2-71(M)(C)N/72(C)N/75N/76N
Brown *1
Overcurrent
protection circuit
Main circuit
Black (HI output)
White (LO output)
Gray (GO output)
Orange (HH output) *2
Green (LL output) *2
DC10-30V *3
Load
DC5-40V
Load
DC5-40V
Load
DC5-40V
Load
DC5-40V
Load
DC5-40V
Blue *1
Input circuit
*1
*3
*4
External input
Brown and blue are available for main units (GT2-71(M)(C)N/75N) only.
Not available for expansion units (GT2-72N/76N).
The expansion unit of the connector type (GT2-72CN) is not connected.
In the analog type (GT2-71MCN), the orange and green lines are analog output lines.
Refer to the analog output circuit diagram for details.
When an expansion unit is connected or for the analog type (GT2-71MCN), the voltage is DC20-30V.
Refer to external input circuit diagram for details about external input.
Brown *1
DC10-30V *3
Black (HI output)
Overcurrent
protection circuit
Specifications
■ GT2-71(M)(C)P/72(C)P/75P/76P
Main circuit
7
*2
0V
Pink, Violet, Pink/Violet, Yellow, Red *4
Gray (GO output)
Green (LL output)*2 Load
Input circuit
*2
*3
*4
7-8
Load
Orange (HH output)*2 Load
Blue *1
*1
Load
White (LO output)
Load
Pink, Violet, Pink/Violet, Yellow, Red *4
0V
External input
Brown and blue are available for main units (GT2-71(M)(C)P/75P) only.
Not available for expansion units (GT2-72P/76P).
The expansion unit of the connector type (GT2-72CP) is not connected.
In the analog type (GT2-71MCP), the orange and green lines are analog output lines.
Refer to the analog output circuit diagram for details.
When an expansion unit is connected or for the analog type (GT2-71MCP), the voltage is DC20-30V.
Refer to external input circuit diagram for details about external input.
GT2-70-M-E
7-2 I/O Diagram
Analog output circuit diagram
■ GT2-71MCN/71MCP
Main circuit
Orange
Green*
Analog output
(4 to 20 mA)
0V
* The green line is internally common with the blue line.
7
Specifications
GT2-70-M-E
7-9
7-2 I/O Diagram
External Input Circuit Diagram
■ GT2-71(M)(C)N/72(C)N/75N/76N
Main
circuit
DC5V
Pink: Preset input
Violet: Bank A input
Pink/Violet: Timing input
Yellow: Bank B input
Red: Reset input
Blue*1
(Short circuit current: 1 mA max.)
*1
7
Blue is available for main units (GT2-71(M)(C)N/75N) only.
Not available for expansion units (GT2-72N/76N).
Connector type expansion units (GT2-72CN) are not connected.
(Short-circuit the input signal with blue line of the main unit)
■ GT2-71(M)(C)P/72(C)P/75P/76P
Specifications
DC10-30V
Main circuit
Brown*1
(Short circuit current: 2 mA max.)
*1
7-10
Pink: Preset input
Violet: Bank A input
Pink/Violet: Timing input
Yellow: Bank B input
Red: Reset input
Brown is available for main units (GT2-71(M)(C)P/75P) only.
Not available for expansion units (GT2-72P/76P).
Connector type expansion units (GT2-72CP) are not connected.
(Short-circuit the input signal with brown line of the main unit)
GT2-70-M-E
7-3
Pulse Output Type Circuit Diagram
I/O circuit diagram
■ GT2-71D
Brown
Main circuit
DC5V
33Ω
Black, White, Orange
33Ω
Violet, Gray, Green
Black: A phase
White: B phase
Orange: Z phase
Blue
Input circuit
_
Violet:_ phase
A
Gray: B_
phase
Green: Z phase
Pink*
Pink: Input
* Refer to external input circuit diagram for details about external input.
External input circuit diagram
7
■ GT2-71D
Specifications
DC5V
Main
circuit
Pink
Blue
(Short circuit current: 1 mA max.)
Recommended input device
■ Line receiver AM26LS32 or equivalent
390Ω
GT2-70-M-E
7-11
7-4
Timing Chart
Standard Detection
Detection period
Detection period
Hold released
Sample hold
P.V. value
Criterion output
Max. 2 ms*1
Max. 2 ms*1
Max. 2 ms*1
Timing input ON
OFF
Min. 2 ms
Min. 2 ms
*1 The duration is max. 4 ms for the expansion unit when " ALL (Batch input) " is selected in " 15. Batch input settings " .
Peak Hold, Bottom Hold, Peak-to-Peak
7
This is the timing chart when " t-in (timing input) " is selected in " 02. Hold update
method " .
Sampling period 2
Sampling period 1
Specifications
P.V. value
Criterion output
Previous result
Sampling period 1 result
Max. 2 ms*1
Sampling period 2 result
Max. 2 ms*1
Max. 2 ms*1
Timing input ON
OFF
Min. 2 ms
Min. 2 ms
*1 The duration is max. 4 ms for the expansion unit when " ALL (Batch input) " is selected in " 15. Batch input settings " .
NG Hold
Detection period
Hold released
Criterion output
Hi
During this period,
Hi and Lo are not
output.
Sample hold
Go
Max. 2 ms*1
Detection period
During the detection period, Hi and
Lo are held, so even if the criterion
changes, the output does not.
Hi
Max. 2 ms*1
Hi
Go
Max. 2 ms*1
Timing ON
OFF
input
Min. 2 ms
Min. 2 ms
*1 The duration is max. 4 ms for the expansion unit when " ALL (Batch input) " is selected in " 15. Batch input settings " .
7-12
GT2-70-M-E
7-4 Timing Chart
Preset Input
P.V. value
Criterion output
Criterion value/output before preset
Criterion value/output after preset
Max. 20 ms*2
ON
Reset input OFF
Min. 20 ms*1
Min. 20 ms
*1 When " ALL (Batch input) " is selected in " 15. Batch input settings " , the preset input is
as follows.
When the number of the added expansion unit is 7 or less: Min. 100 ms
When the number of the added expansion unit is 8 or more: Min. 200 ms
*2 When " ALL (Batch input) " is selected in " 15. Batch input settings " , the response time
of the expansion unit is as follows.
When the number of the added expansion unit is 7 or less: Max. 100 ms
When the number of the added expansion unit is 8 or more: Max. 200 ms
(When performing the preset input after the reset input, the time twice longer than
the above values is required at most.)
Bank Input
Bank 0
Bank 1
Bank 2
Bank 0
Max. 20 ms*2
Max. 20 ms*2
Min. 20 ms*1
Specifications
P.V. value
Criterion output
Bank 3
Min. 20 ms*1
Max. 20 ms*2
Bank A input
ON
OFF
Min. 20 ms*1
Max. 20 ms*2
ON
Bank B input OFF
Max. 8 ms
In this example, after 8 ms have passed, the detection value
and criterion output may become the values for Bank 0 while
Bank 1 switches to Bank 2.
*1 When " ALL (Batch input) " is selected in " 15. Batch input settings " , the preset input is
as follows.
When the number of the added expansion unit is 7 or less: Min. 100 ms
When the number of the added expansion unit is 8 or more: Min. 200 ms
*2 When " ALL (Batch input) " is selected in " 15. Batch input settings " , the response time
of the expansion unit is as follows.
When the number of the added expansion unit is 7 or less: Max. 100 ms
When the number of the added expansion unit is 8 or more: Max. 200 ms
GT2-70-M-E
7
7-13
7-4 Timing Chart
Reset Input
P.V. value
Criterion output
P.V.＝ " ----- "
All are OFF
Before resetting
After resetting
NG-H After the response time
Std
has passed
P-H
Set with timing
b-H
P-P
Max. 20 ms*2
Reset input ON
OFF
Min. 20 ms*1
Min. 20 ms
*1 When " ALL (Batch input) " is selected in " 15. Batch input settings " , the preset input is
as follows.
When the number of the added expansion unit is 7 or less: Min. 100 ms
When the number of the added expansion unit is 8 or more: Min. 200 ms
*2 When " ALL (Batch input) " is selected in " 15. Batch input settings " , the response time
of the expansion unit is as follows.
When the number of the added expansion unit is 7 or less: Max. 100 ms
When the number of the added expansion unit is 8 or more: Max. 200 ms
(When performing the reset input after the preset input, the time twice longer than
the above values is required at most.)
7
Specifications
Minimum Input Time
Timing input
ON time : 2 ms
OFF time : 2 ms
ON
OFF
Preset input, Reset input
ON time : 20 ms
OFF time : 20 ms
ON
* When " ALL (Batch input) " is selected in " 15. Batch input settings "
ON time
: 20 ms
OFF time : (When the number of the added expansion unit is 7 or
less) 100 ms
(When the number of the added expansion unit is 8 or
more) 200 ms
OFF
ON
7-14
OFF
GT2-70-M-E
7-4 Timing Chart
Bank input
ON time : 20 ms
OFF time : 20 ms
ON
OFF
* When " ALL (Batch input) " is selected in " 15. Batch input settings "
ON time
: (When the number of the added expansion unit is 7 or
less) 100 ms
(When the number of the added expansion unit is 8 or
more) 200 ms
OFF time : (When the number of the added expansion unit is 7 or
less) 100 ms
(When the number of the added expansion unit is 8 or
more) 200 ms
ON
OFF
7
Specifications
GT2-70-M-E
7-15
7-5
Dimensions
Sensor Amplifier
o
35
x.1
Ma
41.8
36.9
3
Min. 15
17.4
17.3
*
20
21.1
With the cover open: Max. 82.9
8.9
14.6
24
■ GT2-71(C)N/71(C)P/71MCN/71MCP/71D
35.4
75.8
Min. 15
Unit: mm
With the cover open: Max. 132.6
o
x
Ma
3
Min. 15
5
17.4
.13
20
21.1
35.4
75.8
With the cover open: Max. 82.9
8.9
14.6
24
■ GT2-72(C)N/72(C)P
17.3
Specifications
* Cable specifications
• GT2-71N/71P
φ4.7 12-strand x brown, blue: 0.20 mm2; black, white, gray, orange, green, pink, violet, yellow, red,
violet/pink stripe: 0.15 mm2; cable length: 2 m
• GT2-71CN/71CP/71MCN/71MCP
φ4.7 12-strand connector cable, cable length: 0.3 m
• GT2-71D
φ4.7 9-strand x brown, blue, violet, pink, orange, gray, white, black, green: 0.15 mm2, cable length: 2 m
41.8
36.9
7
Min. 15
With the cover open: Max. 132.6
Unit: mm
* Cable specifications
• GT2-72N/72P
φ4.7 10-strand x black, white, gray, orange, green, pink, violet, yellow, red, violet/pink stripe: 0.15 mm2;
cable length: 2 m
• GT2-72CN/72CP
φ4.7 10-strand connector cable, cable length: 0.3 m
7-16
GT2-70-M-E
7-5 Dimensions
■ GT2-75N/75P/76N/76P
44.7
13.9
13.4
19.8
4.1
12.2
20.9
23.9
1.5
2.3
7
52
* Cable specifications
• GT2-75N/75P
φ4.7 12-strand x brown, blue: 0.20 mm2; black, white, gray,
orange, green, pink, violet, yellow, red,
violet/pink stripe: 0.15 mm2; cable length: 2 m
• GT2-76N/76P
φ4.7 10-strand x black, white, gray, orange, green, pink,
violet, yellow, red, violet/pink stripe: 0.15 mm2;
cable length: 2 m
8.5
66
Unit: mm
When mounted on a panel
Specifications
■ Panel Cutout Dimensions
Panel Cutout Dimensions
45
X=24 x (A-1)+21
When mounting A pieces of
units in close contact
X
Panel thickness: 1 to 6
11.9
(73)
21 -0
+0.4
Min. 69.5
45
Unit: mm
GT2-70-M-E
7
7-17
7-5 Dimensions
Sensor Head
■ GT2-H12(L)/H12K(L)
15.5
10.7
φ 9.5
φ 11.6
(58)
(10.1)
Unit: mm
15.5
φ 9.5
φ 11.6
(58)
16
φ4
1.15
66.7
5.9
(22)
28
10.7
6
92.3
3.8
15.1
8.7
41.5 ∼ 29.0
45.3 ∼ 32.8
6.4
(10.1)
Specifications
0
φ 8 h5 ( +0.006 )
-
When GT2-CHL2M/5M/10M/20M is mounted
(9.6)
7
(9.6)
16
φ4
1.15
66.7
5.9
(22)
6.4
3.8
15.1
8.7
41.5 ∼ 29.0
45.3 ∼ 32.8
28
95.3
6
0
φ 8 h5 ( +0.006 )
-
When GT2-CH2M/5M/10M/20M is mounted
Unit: mm
Note
GT2-H12L/H12KL has no dust boot.
7-18
GT2-70-M-E
7-5 Dimensions
■ GT2-H32(L)
(90.9)
43.8 to 77.8
119.5
7
(11.6)
(0.3)
φ5
19.7
12.2
20
8.2
47.6 to 81.6
(7.8)
37.6
17.8
25.1
(12.5)
(88.5)
2.4
3.8
(53.3)
φ 9.5
9.7
27.9
(19.8)
17
23
(14.3)
2x
φ 15
30
(17.8)
12.2
8.7
φ4
.3
116.4
5.9
(25.4)
0
φ 12 h6 ( +0.011 )
-
When GT2-CH2M/5M/10M/20M is mounted
Unit: mm
Specifications
Note
GT2-H32L has no dust boot.
GT2-70-M-E
7-19
7-5 Dimensions
■ GT2-H50
152.4
3
4.
φ
x
(108.9)
48.6 to 100.6
52.4 to 104.4
(0.3)
(11.6)
19.7
12.2
20
8.2
137.5
φ5
(7.8)
37.6
17.8
(106.5)
2.4
3.8
(53.3)
(12.5)
23
9.7
φ 9.5
45.9
(19.8)
17
25.1
8.7
(14.3)
2
(17.8)
30
φ 15
12.2
5.9
(25.4)
0
φ 12 h6 ( +0.011 )
-
When GT2-CH2M/5M/10M/20M is mounted
7
Unit: mm
15.5
(10.1)
16
25.5
32.5
5.9
22.4
25.15
1.15
95.3
φ4
6.4
φ 9.5
66.7
29 to 41.5
32.8 to 45.3
(5.5)
34.5
(12.5)
(22)
(58)
15.1 8.7
3.8
28
5.95
10.75
1.05
1.55
3.05
φ 11.6
6
φ 8h5
When GT2-CH2M/5M/10M/20M is mounted
(9.6)
Specifications
■ GT2-A12(L)/A12K(L)
8.75
39.8
Air port (for 4.0 outer
diameter air hose)
12.5
84.85
97.35
Air port (for 2.5 inner
diameter air hose)
Unit: mm
7-20
GT2-70-M-E
7-5 Dimensions
5.95
15.5
8.75
39.8
25.5
32.5
16
1.15
(5.5)
(9.6)
(10.1)
22.4
25.15
5.9
92.3
φ4
6.4
(12.5)
66.7
29 to 41.5
32.8 to 45.3
34.5
φ 9.5
(22)
(58)
15.1 8.7
3.8
28
10.75
1.05
1.55
3.05
φ 11.6
6
φ 8h5
When GT2-CHL2M/5M/10M/20M is mounted
Air port (for 4.0 outer
diameter air hose)
12.5
84.85
97.35
Air port (for 2.5 inner
diameter air hose)
Unit: mm
7
Note
GT2-A12L/A12KL has no dust boot.
Specifications
GT2-70-M-E
7-21
7-5 Dimensions
■ GT2-A32
When GT2-CH2M/5M/10M/20M is mounted
φ
2x
37.6
17.8
25.1
88.5
2.4
48.1 to 81.6
(53.3)
(12.5)
9.7
(19.8)
27.9
44.3 to 77.8
φ 9.5
17
3.8
23
(14.3) 8.7
φ 15
30
12.2
(17.8)
(25.4)
φ 12h6
4.3
5.9
90.9
7
(5.5)
30
37
(7.8)
39
(11.55)
19.7
8.15
27
29.75
12.2
0.3
φ5
119.5
5.6
75.65
Air port (for 4.0 outer
diameter air hose)
12.5
142.7
Specifications
Air port (for 2.5 inner
diameter air hose)
155.2
Unit: mm
7-22
GT2-70-M-E
7-5 Dimensions
■ GT2-A50
When GT2-CH2M/5M/10M/20M is mounted
2x
φ
4.
37.6
17.8
25.1
23
52.9 to 104.4
(53.3)
9.7
(12.5)
45.89
49.1 to 100.6
(19.8)
17
3.8
φ 9.5
(17.8)
(25.4)
(14.3)
8.7
φ 15
30
12.2
φ 12h6
3
5.9
106.5
2.4
108.9
30
37
19.7
8.15
(11.55)
27
5.6
12.5
178.7
191.2
Air port (for 2.5 inner
diameter air hose)
Air port (for 4.0 outer
diameter air hose)
Unit: mm
7-23
Specifications
93.65
GT2-70-M-E
7
(5.5)
(7.8)
39
12.2
φ5
3.0
29.75
137.5
7-5 Dimensions
Mounting Bracket A, C Mounting Hole Diagram
0.5 to 1.0*2
±1°
45°
φ10
G8
*
027 )
+0. 5
( +0.00
1
GT2-H32(L)/H50/A32/A50
A
Tightening
sleeve
inserting
side
Nut mounting
side
5.5 to 11.3*2
φ0.025 A
*1 For mounting bracket C
φ10 +0.1
+0.005
*2 Processing accuracy: ±0.05
Unit: mm
7
Mounting Bracket D Mounting Hole Diagram
Specifications
°
1
45°±
.1 6
+00.00
+
4
φ1
Tightening
sleeve
inserting
side
φ0.025 A
0.5 to 1.0*
A
Nut mounting
side
5.5 to 11.3*
* Processing accuracy: ±0.05
Unit: mm
7-24
GT2-70-M-E
Appendix
A
A
A1
Troubleshooting....................................................... A-2
A2
Error Messages....................................................... A-5
A3
Replacing the Contact............................................. A-8
A4
Replacing the Dust Boot ....................................... A-10
A5
How to Mount the Lift Lever .................................. A-14
A6
Index ..................................................................... A-16
GT2-70-M-E
A-1
A1
Troubleshooting
This section describes the actions to take when a problem occurs.
Problem
Nothing is
displayed on
the panel.
Values are
not
displayed.
The value
fluctuates.
A
Appendix
The values
are incorrect.
The outputs
change even
when paused.
Bank
switching
cannot be
performed
with external
input.
A-2
Check points
Is the power cable
connected correctly?
Is the power save function
running?
Is the target within the
detection range?
Is timing control set for the
detection mode?
Is the internal timing level set
correctly?
When using static hold, is
the stability width set to the
correct value?
Are the output line and input
line short-circuited?
Is the response time set too
fast?
Are the target or sensor
head vibrating?
When using static hold, is
the stability width set to the
correct value?
Are the output line and input
line short-circuited?
Is the target tilted or located
in an incorrect position?
Is the sensor head firmly
secured?
Does the surrounding air
temperature significantly
change?
• Is the origin alignment set
correctly?
• Is the preset value set
correctly?
• Is the preset input line
connected correctly?
Is the proper calibration
value set?
Are the contacts aligned
correctly?
Are the output line and input
line short-circuited?
Check the hysteresis. (The
factory default hysteresis is
0.003 mm.)
Is the key lock turned on?
Remedy
Connect the power cable correctly.
" Sensor Amplifier Wiring " (Page 2-9)
Turn off the power save function.
" 23. Power Save Function " (Page 5-44)
Adjust the target to correctly fall within the
detection range.
Set the timing control for the detection mode.
" 01. Detection Mode " (Page 5-7)
Correctly adjust the timing level.
" 05. Self-timing Level " (Page 5-12)
Set the criterion reference to USEr and increase
the stability criterion reference width.
" 08. Static Hold Delay Stability " (Page 5-15)
Check the wiring.
Set the response time to a slower value.
" 03. Response Time " (Page 5-9)
Take anti-vibration measures.
Set the criterion reference to USEr and decrease
the stability criterion reference width.
" 08. Static Hold Delay Stability " (Page 5-15)
Check the wiring.
Adjust the target to correctly fall within the
detection range.
Use the optional mounting bracket.
" Mounting the Sensor Head " (Page 2-13)
Keep the surrounding air temperature constant.
Configure the settings correctly.
" 3-2 Origin Alignment " (Page 3-11)
" Preset Function (Displaying a value by
Adding or Subtracting a Desired Value) "
(Page 3-30)
Redo the calibration.
" 30. Calibration Function Setting " (Page 5-52)
If the contacts can separate easily, secure them
with thread lock.
Check the wiring.
Increase the hysteresis.
" 14. Hysteresis " (Page 5-22)
Turn off the key lock.
" Key Lock " (Page 3-39)
GT2-70-M-E
A1 Troubleshooting
Problem
" - - - - - - " is
displayed
when the
power is
turned on.
The display
stays at
0.000.
Check points
Remedy
Is hold detection selected?
( " - - - - - - " is displayed until
the first criterion value is
recognized.)
A value will appear once the first criterion value is
recognized.
" 01. Detection Mode " (Page 5-7)
Does the value change
during the sampling period
of Peak-to-Peak hold?
Is the hysteresis set
correctly?
During Peak-to-Peak hold, the amount of variation
is displayed, so if the value stays the same, then
the displayed value remains as zero.
Check the output circuit and wiring, and connect
properly.
" 7-2 I/O Diagram " (Page 7-8)
Reset the tolerances
" 3-3 Setting the Tolerances " (Page 3-14)
Set it up correctly.
" 14. Hysteresis " (Page 5-22)
Is the displayed number of
digits set correctly?
Set it up correctly.
" 13. Displayed Number of Digits " (Page 5-21)
Is the unit properly wired?
Criterion
output cannot
be output
properly.
The unit in the
thousands
place (0.0001)
does not
appear.
The A1.APL
parameters
do not
appear.
When
calculating
the reference
distance, the
response
time cannot
be set.
• Are expansion units
added? If expansion units
are added, it only appears
on the main unit.)
• Are the amplifiers
connected to each other
correctly?
Are the number of expansion
units correct? Each of those
calculations are available
only when there are 4, 3, or 2
units.) Are the amplifiers
connected to each other
correctly?
Are you attempting to set the
response time for an
expansion unit?
Is R.V. display selected?
The value
fluctuates,
but the bar
LED does not
change.
GT2-70-M-E
Is the bar LED display
method set to OK/NG
display mode?
Are the HIGH setting value
and LOW setting value vastly
different from the measured
value?
Check the connections for the expansion units.
" 2-1 Mounting and Wiring the Sensor
Amplifier " (Page 2-2)
A
Connect the correct number of units.
" 5-6 Calculation Setting Mode " (Page 5-57)
During calculation, set the response time for the
main unit?
" 03. Response Time " (Page 5-9)
Set P.V. display.
" 3-1 Main Screens " (Page 3-2)
During P.V. display, use the MODE button to switch
the bar display mode.
" 1-2 Identifying Part Names and Functions "
(Page 1-9)
Set the correct value. (When the measured value
is far from the HIGH/LOW setting values, or if the
value is fairly close to the difference between the
HIGH/LOW setting values, the bar LED does not
change.)
A-3
Appendix
Calculations
for twist,
warpage, and
thickness
cannot be
set.
Are the tolerances set
correctly?
A1 Troubleshooting
Problem
The preset
values for the
HIGH setting
value and LOW
setting value
changed.
During
tolerance
calibration,
" no vAL " is
displayed.
Check points
Remedy
Was bank switching
performed?
Use key operations to select the original bank.
(The factory default is bank 0).
Check whether the bank input wire is connected
correctly.
" Sensor Amplifier Wiring " (Page 2-9)
When the measured value
(P.V. value) is " - - - - - - " ,
tolerance calibration cannot
be performed.
Adjust the target to fall within the detection range.
A value will appear once a measured value is
recognized through timing.
A
Appendix
A-4
GT2-70-M-E
A2
Error Messages
When an error occurs, an error message appears on the sensor amplifier.
While the error message that starts with " Er " is displayed, the HIGH and LOW outputs
turn ON at the same time (excluding " ErC " ).
Error screen
Error contents
The sensor head cable is not
connected.
The sensor head cable is
disconnected.
The sensor head is damaged.
Overcurrent flows through the
output wire.
Data cannot be read correctly.
The spindle sets off the alarm.
• When using static hold for
internal timing, the value falls
below (rises above) the trigger
level and the detection ends
prematurely before the detection
becomes stable and the criterion
value (P.V. value) is determined.
• When using the delay timer for
internal timing, the value falls
below (rises above) the trigger
level and the detection ends
prematurely within the period
since the value rises above (falls
below) the trigger level until the
criterion value (P.V. value) is
determined after the specified
time.
GT2-70-M-E
Replace the sensor head.
• Check the load and reduce the
current to be within the rated
range.
• Check that the output wire is not
touching other wires or the frame.
Restart the unit and perform initial
reset.
If the above actions do not correct
the problem, replace the amplifier
unit.
• If the spindle sets off the alarm and
does not return to its original
position, replace the sensor head.
• Check whether the external timing
input is functioning properly.
(Press the [SET] button to restart.)
The delay time is too long. Change
the setting.(Press the [SET] button
to restart.)
" 07. User-specified Delay
Time " (Page 5-14)
Set the trigger level so that it does
not fall (or rise) until measured
value is determined. Or increase
the static hold delay stability width
so that the measured value can be
determined more easily.
" 09. Static Hold Delay Stability
Width " (Page 5-16)
A-5
A
Appendix
The trigger level falls (or rises) in
the set delay time.
Action
Connect the sensor head to the
amplifier unit.
A2 Error Messages
Error screen
Error contents
The amplifier units cannot
communicate with each other.
• When using the calculation function,
the number of expansion units
connected when the power is turned
on differs from the number of
expansion units programmed in the
main unit when setting the calculation
settings.
• When using the calculation function,
the model other than the GT2-70
Series is added
An error has occurred in the main unit
when performing the reference
difference (rEF) of the calculation
function, or an error has occurred in one
of the expansion units when performing
a calculation function item other than the
reference difference (rEF).
The sensor head is connected to
the main unit that is set to the
calculation dedicated mode.
A
Appendix
The display reads " com.Loc " and
settings cannot be changed.
Action
After turning the power off, check
whether the connections between
the amplifiers are correct and
restart the power.
• Set the calculation mode again
or initialize the main unit.
" Initialization (Initial Reset) "
(Page 3-37)
• After turning the power off,
check the connection between
the amplifiers.
Check the error contents on the
main unit and expansion units.
Remove the sensor head from the
main unit or set the main unit to the
setting other than the calculation
dedicated mode.
The connected communication unit DLRS1A read/write setting switch is set to
RW.
Set the read/write setting switch to R.
" RS-232C Communication Unit DLRS1A User's Manual "
Reference
The calculation mode is used, so
the function setting mode cannot
be changed.
Even when " com.Loc " is displayed, the
external input can be used for bank
switching, reset input, and preset input.
Check the calculation mode setting.
The function setting mode can be
changed only when the calculation
mode setting on the main unit is set to
" C0.oFF " or " C5.rEF " .
Perform the tolerance calibration
During tolerance calibration, the
after performing the timing input to
criterion value (P.V. value) is " ------ " .
fix the measured value.
The criterion value (P.V. value) is
not fixed because the timing input
is not performed when the hold
detection is selected.
A-6
Perform the timing input.
GT2-70-M-E
A2 Error Messages
Error screen
Error contents
Operations on the expansion unit
are locked while the batch input is
selected and the key lock is active
on the main unit.
After ALL GO is selected in the
special output setting, the number
of expansion units changed.
Action
Cancel the key lock on the main
unit.
• If the number of expansion units
has been changed, set the
special output setting again.
• If the number of expansion units
has not been changed, check if
each expansion unit operates
correctly, then turn on the power
again.
A
Appendix
GT2-70-M-E
A-7
A3
Replacing the Contact
This section describes replacing the contact. Remove the sensor head before
performing this operation.
1
Use the supplied key wrench to hold the spindle securely.
Spindle
Contact
If force is applied to twist the spindle, the sensor
CAUTION head may be damaged.
A
2
Use pliers or a similar tool to grasp the contact and remove it.
Pliers and similar tools cannot be used on the fluorocarbon contact
(OP-80228). Remove this contact with your fingers.
Appendix
Cover the contact with a cloth
Note
• Cover the contact with a piece of cloth to cushion it while you grasp the
contact with the pliers. Pliers and similar tools cannot be used on the
fluorocarbon contact (OP-80228). Remove this contact with your fingers.
• Do not rotate the unit while performing these steps.
A-8
GT2-70-M-E
A3 Replacing the Contact
3
As described in step 1, use the supplied key wrench to hold the spindle
securely.
4
As described in step 2, replace the contact.
Note
• For the roller contact or offset contact, secure the side of the
contact being used with a fixing nut. We also recommend
using a thread lock to prevent wiggling.
• When using a roller contact, only apply to the roller in the
direction of movement and not along other axes.
• When installing the contact, never apply tightening torque
over 0.2 N·m. Use a tightening torque of 0.002 N·m or less for
the fluorocarbon contact (OP-80228) only. We also
recommend using thread lock to prevent movement.
A
Appendix
GT2-70-M-E
A-9
A4
Replacing the Dust Boot
This section describes the replacement of the dust boot. Remove the sensor head
from the device before replacement.
Note
After replacing the dust boot, the enclosure rating cannot be
guaranteed.
1
Use the supplied key wrench to secure the spindle and pliers or similar
tool to remove the contact.
Pliers and similar tools cannot be used on the fluorocarbon contact
(OP-80228). Remove this contact with your fingers.
Spindle
A
Cover the contact with a cloth
Appendix
If force is applied to twist the spindle, the sensor
CAUTION head may be damaged.
Note
Cover the contact with a piece of cloth to cushion it while you
grasp the contact with the pliers. Pliers and similar tools
cannot be used on the fluorocarbon contact (OP-80228).
Remove this contact with your fingers.
2
Remove the dust boot.
Dust boot
A-10
GT2-70-M-E
A4 Replacing the Dust Boot
3
Install a new dust boot.
4
Insert the dust boot until it fits in the spindle groove.
Reference
A
As shown in the drawing below, press on the end of the dust boot with
your fingers and pass the tip of the spindle through the dust boot.
GT2-70-M-E
A-11
Appendix
5
Rotating the dust boot makes it easier to insert.
A4 Replacing the Dust Boot
6
Thread the spindle completely through the end as shown in the drawing
below.
7
Slide the dust boot so that it fits in the spindle groove.
8
As described in step 1, use the supplied key wrench to secure the spindle and
use pliers or similar tool to remove the contact.
A-12
GT2-70-M-E
A
Appendix
A4 Replacing the Dust Boot
9
Rotate the dust boot either up or down until the ridges on the dust boot
(which protrude slightly) line up completely straight.
This is easier to check with the spindle pushed in.
CAUTION
If the dust boot is not straight, the spindle may apply
stress when it moves, which may damage the sensor
head.
A
Appendix
GT2-70-M-E
A-13
A5
How to Mount the Lift Lever
Mount the lift lever (OP-84397) between the spindle and the contact. Remove the
sensor head from the device beforehand.
1
Use the supplied key wrench to hold the spindle securely.
Spindle
Contact
If force is applied to twist the spindle, the sensor
CAUTION head may be damaged.
A
2
Use pliers or a similar tool to grasp the contact and remove it.
Pliers and similar tools cannot be used on the fluorocarbon contact
(OP-80228). Remove this contact with your fingers.
Appendix
Cover the contact with a cloth
Note
• Cover the contact with a piece of cloth to cushion it while you grasp the
contact with the pliers. Pliers and similar tools cannot be used on the
fluorocarbon contact (OP-80228). Remove this contact with your fingers.
• Do not rotate the unit while performing these steps.
A-14
GT2-70-M-E
A5 How to Mount the Lift Lever
3
Mount the lift lever.
After mounting, secure the lift lever in place with the spindle and remove or
attach the contact.
A
Appendix
GT2-70-M-E
A-15
A6
Index
This index provides a list of terms used in this document. It is arranged in alphabetic
order.
Numerics
Connecting the sensor head
connection cable .............................. 2-22
1st Detection/Capture ....................... 5-53
2nd Detection/Capture ..................... 5-55
2nd Target Setting ............................ 5-54
D
5 output HH setting value display ...... 3-6
Degree of flatness ............................ 5-67
5 output LL setting value display ........ 3-9
Detaching the air tube ...................... 2-19
Detection Functions ............................ 5-2
A
Additional Function Setting Mode .... 5-40
List of Setting Modes ..................... 5-2
Parameter Setting List ................... 5-2
Detection Mode .................................. 5-7
Adjustment of Spindle Movement
Judging by the Maximum Value
Applications that can be used in
(Peak Hold) ................................. 4-10
Calculation Mode .............................. 5-58
A
Holding HIGH/LOW Output ......... 4-32
Speed ............................................... 2-21
Judging by the Minimum Value
Average ............................................ 5-68
(Bottom Hold) .............................. 4-19
Judging with the Current Value ..... 4-2
Appendix
B
Bank Function (Registering Multiple
Judging with the Difference between
Maximum and Minimum Values ....... 4-28
Dimensions ....................................... 7-16
Criterion Values and Preset Values) ....... 3-31
Mounting Bracket A, C Mounting
Basic Setting Mode .......................... 5-17
Hole Diagram .............................. 7-24
Batch Input Settings ......................... 5-24
Mounting Bracket D Mounting
Hole Diagram .............................. 7-24
C
Panel Cutout Dimensions ............ 7-17
Sensor Amplifier .......................... 7-16
Calculated value display .................... 3-4
Sensor Head ............................... 7-18
Calculation Setting Mode ................. 5-57
Displayed Number of Digits ............. 5-21
Calibration Function Setting ............. 5-52
Calibration Setting Mode .................. 5-51
Checking the Package Contents ........ 1-2
E
Sensor Amplifier ............................ 1-2
Entering Additional Function Setting
Sensor Head .................................. 1-4
Mode ................................................ 5-40
Sensor Head Connection Cable .... 1-6
Entering Basic Setting Mode ............ 5-17
Connecting the Amplifier .................. 2-23
Entering calculation setting mode .... 5-60
DIN-rail mount type ...................... 2-23
Entering Calibration Setting Mode ... 5-51
Panel mount type ......................... 2-24
Entering Function Setting Mode ......... 5-6
A-16
GT2-70-M-E
A6 Index
Error Messages .................................. A-5
Exiting Additional Function Setting
J
Mode ................................................ 5-40
Jam detection .................................. 5-46
Exiting Basic Setting Mode .............. 5-17
When " USEr " is selected ............. 5-47
Exiting calculation setting mode ...... 5-60
When enabled ............................. 5-46
Exiting Calibration Setting Mode ...... 5-51
Jam Detection Checkpoint Setting .. 5-50
Exiting Function Setting Mode ........... 5-6
Jam Detection Function ................... 5-45
External Input Circuit Diagram ......... 7-10
Jam Detection Teaching .................. 5-49
Judging after the Detection Value is Stabilized
F
Function Setting Mode ....................... 5-6
Automatically Detecting the End
of the Fluctuation ........................... 4-7
Judging after a Certain Period of
Time Has Passed (Delay Timer) ... 4-4
H
HIGH setting value display ................ 3-7
Hold Update Method .......................... 5-8
Holding HIGH/LOW Output
Judging by the Maximum Value (Peak Hold)
Specifying the Sampling Period from
External Input .............................. 4-10
Using without the Timing Input ... 4-15
Judging by the Minimum Value (Bottom Hold)
Timing Chart in the NG Hold
Specifying the Sampling Period from
Detection Mode ........................... 4-32
External Input .............................. 4-19
How to Mount the Lift Lever ............. A-14
How to switch the bank .................... 3-32
Holding the Desired Value ............ 4-2
When hysteresis is not set ........... 5-23
Judging with the Difference between
When hysteresis is set ................. 5-23
Maximum and Minimum Values
Specifying the Sampling Period from
I
I/O Diagram ........................................ 7-8
External Input .............................. 4-28
K
Identifying Part Names and Functions ..... 1-9
Sensor Amplifier Unit ..................... 1-9
Key Lock .......................................... 3-39
Sensor Head Connection Cable ....... 1-13
Sensor Head Unit ........................ 1-11
Initial Reset ....................................... 3-37
L
Initialization ....................................... 3-37
Limit Output HH Side Criterion Position
Installing the Air Tube ...................... 2-18
Setting .............................................. 5-34
Installing the Head Cable Connector
Limit Output HH Side Teaching ....... 5-33
(OP-84338) ....................................... 2-25
Limit Output LL Side Criterion Position
Setting .............................................. 5-36
Limit Output LL Side Teaching ........ 5-35
List of Optional Parts .......................... 1-7
GT2-70-M-E
A
A-17
Appendix
Hysteresis ............................... 3-36, 5-22
Using without the Timing Input ... 4-24
Judging with the Current Value
A6 Index
LOW setting value display .................. 3-8
M
Preset value setting display ............. 3-10
R
Main Screens ...................................... 3-2
R.V. value display ............................... 3-5
Max. Value ........................................ 5-65
Reference Difference ....................... 5-69
Measurement Direction .................... 5-18
Replacing the Contact ....................... A-8
Min. Value ......................................... 5-66
Replacing the Dust Boot ................. A-10
Minimum Input Time ......................... 7-14
Reset Input (Resetting Internal Values) ..... 3-34
Bank input .................................... 7-15
Reset input when using the hold
Preset input, Reset input ............. 7-14
function ........................................ 3-35
Timing input ................................. 7-14
Response Time ................................... 5-9
Mounting the Sensor Amplifier ........... 2-2
DIN-rail mount type
(Expansion unit) ............................. 2-3
S
DIN-rail mount type (Main unit) ...... 2-2
Select Preset Data ............................ 5-41
Panel mount type (Expansion unit) ..... 2-6
Self Timing Delay Types ................... 5-13
Panel mount type (Main unit) ......... 2-5
Self-timing Level ............................... 5-12
Mounting the Sensor Head ............... 2-13
Sensor Amplifier Wiring ...................... 2-9
Mounting directly to a jig ............. 2-13
DIN-rail mount type ....................... 2-9
A
Mounting on the side of a table ... 2-16
Multiplier ........................................... 5-19
Panel mount type ........................ 2-11
Setting HH/LL Criterion Value
Appendix
Automatically .................................... 3-23
O
Origin Alignment ............................... 3-11
Setting HH/LL Criterion Value
Manually ........................................... 3-22
Setting the HH/LL Criterion Value ..... 3-21
Adjusting the Origin Directly from
Setting the Tolerances ...................... 3-14
the Sensor .................................... 3-11
Setting the Tolerances Manually ...... 3-15
Origin Alignment by External
Setting Up the Tolerances
Input ............................................. 3-13
Automatically .................................... 3-16
Output Mode ..................................... 5-20
Special Output Setting ..................... 5-26
Specifications ..................................... 7-2
P
Sensor Amplifier ............................ 7-4
Sensor Head ................................. 7-2
P.V. value display ............................... 3-3
Status Table .................................. 7-6
Power On Reset Time ......................... 7-7
Static Hold Delay Stability ................ 5-15
Power Save Function ........................ 5-44
Static Hold Delay Stability Width ...... 5-16
Precautions for Calculation Setting ..... 5-61
Store Preset Value ............................ 5-42
Preset Function (Displaying a value by
Switching the bank by external input ..... 3-33
Adding or Subtracting a Desired Value) .... 3-30
Switching the Display Unit (mm/inch) .... 3-38
Preset Point ....................................... 5-43
A-18
GT2-70-M-E
A6 Index
T
Thickness ......................................... 5-74
Origin alignment when
" C8. Thickness " is selected ......... 5-75
Timing Chart ..................................... 7-12
Bank Input ................................... 7-13
Minimum Input Time .................... 7-14
NG Hold ...................................... 7-12
Peak Hold, Bottom Hold,
Peak-to-Peak ............................... 7-12
Preset Input ................................. 7-13
Reset Input .................................. 7-14
Standard Detection ..................... 7-12
Timing Type ...................................... 5-11
Tolerance calibration ........................ 3-16
Troubleshooting ................................. A-2
Twist ................................................. 5-70
Two-point calibration ........................ 3-18
A
U
Appendix
Useful Functions ............................... 3-30
User-specified Delay Time ............... 5-14
W
Warpage ........................................... 5-72
GT2-70-M-E
A-19
A6 Index
MEMO
A
Appendix
A-20
GT2-70-M-E
A6 Index
MEMO
A
Appendix
GT2-70-M-E
A-21
Revision History
Date of printing
Version
December 2008
Official release
February 2009
Second
September 2009
Third
December 2010
Fourth
April 2011
Fifth
Revision contents
WARRANTIES AND DISCLAIMERS
(1) KEYENCE warrants the Products to be free of defects in materials and workmanship for a period of
one (1) year from the date of shipment. If any models or samples were shown to Buyer, such
models or samples were used merely to illustrate the general type and quality of the Products and
not to represent that the Products would necessarily conform to said models or samples. Any
Products found to be defective must be shipped to KEYENCE with all shipping costs paid by Buyer
or offered to KEYENCE for inspection and examination. Upon examination by KEYENCE,
KEYENCE, at its sole option, will refund the purchase price of, or repair or replace at no charge any
Products found to be defective. This warranty does not apply to any defects resulting from any
action of Buyer, including but not limited to improper installation, improper interfacing, improper
repair, unauthorized modification, misapplication and mishandling, such as exposure to excessive
current, heat, coldness, moisture, vibration or outdoors air. Components which wear are not
warranted.
(2) KEYENCE is pleased to offer suggestions on the use of its various Products. They are only
suggestions, and it is Buyer's responsibility to ascertain the fitness of the Products for Buyer’s
intended use. KEYENCE will not be responsible for any damages that may result from the use of the
Products.
(3) The Products and any samples ( " Products/Samples " ) supplied to Buyer are not to be used internally
in humans, for human transportation, as safety devices or fail-safe systems, unless their written
specifications state otherwise. Should any Products/Samples be used in such a manner or misused
in any way, KEYENCE assumes no responsibility, and additionally Buyer will indemnify KEYENCE
and hold KEYENCE harmless from any liability or damage whatsoever arising out of any misuse of
the Products/Samples.
(4) OTHER THAN AS STATED HEREIN, THE PRODUCTS/SAMPLES ARE PROVIDED WITH NO
OTHER WARRANTIES WHATSOEVER. ALL EXPRESS, IMPLIED, AND STATUTORY
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT
OF PROPRIETARY RIGHTS, ARE EXPRESSLY DISCLAIMED. IN NO EVENT SHALL KEYENCE
AND ITS A FFILIATED ENTITIES BE LIABLE TO ANY PERSON OR ENTITY FOR ANY DIRECT,
INDIRECT, INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING,
WITHOUT LIMITATION, ANY DAMAGES RESULTING FROM LOSS OF USE, BUSINESS
INTERRUPTION, LOSS OF INFORMATION, LOSS OR INACCURACY OF DATA, LOSS OF
PROFITS, LOSS OF SAVINGS, THE COST OF PROCUREMENT OF SUBSTITUTED GOODS,
SERVICES OR TECHNOLOGIES, OR FOR ANY MATTER ARISING OUT OF OR IN
CONNECTION WITH THE USE OR INABILITY TO USE THE PRODUCTS, EVEN IF KEYENCE
OR ONE OF ITS AFFILIATED ENTITIES WAS ADVISED OF A POSSIBLE THIRD PARTY’S
CLAIM FOR DAMAGES OR ANY OTHER CLAIM AGAINST BUYER. In some jurisdictions, some
of the foregoing warranty disclaimers or damage limitations may not apply.
BUYER'S TRANSFER OBLIGATIONS:
If the Products/Samples purchased by Buyer are to be resold or delivered to a third party, Buyer
must provide such third party with a copy of this document, all specifications, manuals, catalogs,
leaflets and written information provided to Buyer pertaining to the Products/Samples.
E 1110-2
Copyright (c) 2008 KEYENCE CORPORATION. All rights reserved.
189021E 1041-5 96009E Printed in Japan