Keyence GV-21 User Manual

1
GV-IM-E
Digital CMOS Laser Sensor
GV Series
Instruction Manual
Read this manual before using the software in order to achieve maximum
performance.
Keep this manual in a safe place after reading it so that it can be used at any time.
The displayed values indicate guidelines for distances and should not
be used in the actual applications for measurement.
* The laser classification for FDA(CDRH) is implemented based on IEC60825-1 in
accordance with the requirements of Laser Notice No.50.
Safety measures for the laser
 Laser radiation emission indicator
The laser radiation emission indicator lights up after turning on the power and
while the laser beam is being emitted.
 Laser emission stop input
The laser emission stops when an emission stop (purple line) signal is input (for
20 ms or longer). The emission stops while the signal is input. The laser beam is
emitted a maximum of 20 ms after the signal input is canceled. The control
output functions according to the detection value even while laser emission
stop is input.
 Laser warning labels
The following diagrams show the type and position of laser warning labels
according to the GV Series.
The IEC warning/explanatory labels are only included with Class 2 laser
products.
When using this product in the countries and/or regions other than U.S., use the
IEC warning/explanatory label in the package of this product.
In this case, it can be affixed on the FDA (CDRH) warning label, which has
already been affixed to this product.
Check if the parts and equipment listed below are included in the package of the
model you purchased before using the unit.
 Sensor amplifier
 Sensor head
We have thoroughly inspected the package contents before shipment.
However, in the event of defective, broken or missing items, please contact your
nearest KEYENCE office.
Safety Precautions
WARNING
• This product is only intended to detect object(s). Do not use this
product for the purpose to protect a human body or part of a
human body.
• This product is not intended for use as an explosion-proof
product. Do not use this product in a hazardous location and/or
potentially explosive atmosphere.
Safety Precautions on Laser Products
WARNING
• This product employs a semiconductor laser for its light source.
• Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
exposure.
• Follow the instructions mentioned in this manual. Otherwise, injury
to the human body (eyes and skin) may result.
• Do not disassemble this product. Laser emission from this product
is not automatically stopped when it is disassembled.
Precautions on class /2 laser products
• Do not stare into the beam.
• Do not direct the beam at other people or into areas
where other people unconnected with the laser work
might be present.
• Be careful of the path of the laser beam.
If there is a danger that the operator may be exposed
to the laser beam reflected by specular or diffuse
reflection, block the beam by installing an enclosure
with the appropriate reflectance.
• Install the products so that the path of the laser beam
is not as the same height as that of human eye.
Precaution on class 1 laser products
• Do not stare into the beam.
Item
Description
Model
GV-H45, GV-H130,
GV-H450, GV-H1000
GV-H45L, GV-H130L,
GV-H450L, GV-H1000L
Wavelength 655nm
FDA (CDRH)
Part 1040.10
Laser Class
Class Laser Product
Class 1 Laser Product*
Output 560W 220W
IEC 60825-1
Laser Class Class 2 Laser Product Class 1 Laser Product
Output 560W 220W
Note
OUT
LASER
1
2
CLP
OUT
LASER
TIM
BANK
SET
SEL
MODE
1
2
1
2
1 spotDATUM
series
Laser radiation emission indicator
Sensor amplifier Sensor head
Checking the Package Contents
GV-H45(L)/GV-H130(L) GV-H450(L)/GV-H1000(L)
Aperture label
Aperture label
Laser
transmitter
FDA (CDRH)
warning label (Class )*
Aperture label
Aperture label
Laser
transmitter
FDA (CDRH)
warning label (Class )*
* Not included with GV-H45L/H130L/H450L/H1000L.
 Aperture label
 IEC warning/explanatory label (CLASS 2)
 FDA (CDRH) warning label (CLASS )
The FDA (CDRH) warning labels are only affixed to Class laser products.
MODE
SEL
SET
LASER
1
2
OUT
1
2
TIM
1spot
CLP
BANK
DATUM
MODE
SEL
SET
LASER
1
2
OUT
1
2
TIM
1spot
CLP
BANK
DATUM
series
series
GV-21/GV-21P (main unit) GV-22/GV-22P (expansion unit)
Amplifier x1
Instruction manual x1
Amplifier x1
GV-H45(L)/H130(L) GV-H450(L)/H1000(L)
Sensor head x1
Insulating sheet x1
Mounting bracket x1
Board nut x1
M3 x L30 screw x2
Laser warning sticker* x1
Sensor head x1
Insulating sheet
X1
Mounting bracket x1
Board nut x1
M4 x L35 screw x2
Laser warning sticker* x1
* This is not included with GV-H45L/H130L/H450L/H1000L.
96M11664

Keyence GV-21 Specifications

General

Brand	Keyence
Model	GV-21
Category	Accessories
Language	English

Summary

Safety Precautions and Laser Warnings

Laser Product Safety Precautions

General safety rules and warnings for laser products.

Laser Emission Indicator

Describes the function of the laser radiation emission indicator.

Laser Warning Labels

Details the types and placement of laser warning labels.

Package Contents

Checking Package Contents

Verifies all included parts upon receiving the product.

Sensor Amplifier Mounting and Wiring

Mounting the Sensor Amplifier

Instructions for mounting the sensor amplifier on a DIN rail.

Mounting Expansion Units

Steps for connecting expansion units (GV-22/GV-22P) to the main unit.

Amplifier Wiring

Details the I/O cable connections for the sensor amplifier.

Sensor Head Connection and Mounting

Sensor Head Part Names

Identifies the key components of the sensor head.

Connecting the Sensor Head

Steps to connect the sensor head connector to the amplifier.

Mounting the Sensor Head

Guidance on mounting the sensor head, including bracket usage.

Mounting Scenarios

Specific mounting advice for different target detection situations.

Sensor Amplifier Display and Operation

Amplifier Part Identification

Labels and identifies the various parts of the sensor amplifier.

Main Screen Displays

Explains the different screens and indicators on the amplifier.

Value Displays and Interpretation

How to interpret setting, current, peak, and bottom value displays.

Detection Range Display

Details how the current value relates to workpiece distance and resolution.

Sensor Calibration Procedures

Two-Point Calibration Method

Steps to calibrate using workpiece and non-workpiece points.

Reference Surface Calibration

Using DATUM method for calibration based on a reference surface.

Fine-Tuning Sensitivity

Adjusting the sensor's setting value for optimal performance.

Operation Mode Configuration

Detection Method Overview

Explains Distance and DATUM detection methods.

Edge Hold Mode Operation

Edge Hold Mode Details

Explains the A-1 Edge hold mode for detecting workpieces with height changes.

Sensitivity Configuration for Distance Detection

Calibration Method Overview

Covers 2-point, Max Sensitivity, Full Auto, and 2-point Area calibration.

Two-Point Calibration Process

Steps for 2-point calibration in F-1, A-1, A-2 modes.

Full Auto Calibration Procedure

Performing calibration with a moving target.

Advanced Calibration and Settings

1-Point Area Calibration

Procedure for 1-point area calibration in F-2 mode.

DATUM Calibration and Reset

Steps for DATUM calibration and how to clear it.

System Initialization

Restores factory defaults and manages custom settings.

Configuration Management

Covers bank switching and zero point positioning.

Keylock Functionality

Setting and Releasing Keylock

Procedure to enable or disable the keylock function.

Setting Each Type of Function

Response Speed Setting

Adjusting the sensor's response time.

Output Mode Setting

Configuring control output modes (N.O./N.C.).

Operation Mode Selection

Choosing between Normal, Area, Edge Hold, and Surface detection modes.

Clamp Function Setting

Handling situations where distance detection fails.

Delay Timer and Input Settings

Delay Timer Settings

Configuring delay timers for control outputs.

Hysteresis Setting

Adjusting hysteresis for control output judgments.

External Input Function

Assigning functions to the external input pin.

Function Settings Details

Response Speed Configuration

Setting the time for sensor detection value stabilization.

Output Mode Configuration

Sets the control output mode for each control output.

Operation Mode Selection

Sets the operation mode (Normal, Area, Edge, Surface).

Clamp Function Details

Operations when distance detection cannot be performed.

Timer, Input, and Display Settings

Delay Timer Setting

Individual delay timers for channels 1 and 2.

Hysteresis Setting

Sets hysteresis for judgment with control outputs.

External Input Function Setting

Assigns functions to the external input (pink line).

Shift Target Value and Display Settings

Setting the Shift Target Value

Shifts the current value by another amount.

Distance Display Setting

Sets side close to sensor head as positive/negative direction.

Eco Display Setting

Reduces consumption current or stops displaying values.

Troubleshooting and I/O Circuits

Troubleshooting Common Problems

Addresses issues like incorrect output and non-functioning external input.

I/O Circuit Diagrams

Illustrates output and input circuits for the sensor amplifier.

Specifications Overview

Sensor Head Specifications

Details specifications for various sensor head models.

Sensor Amplifier Specifications

Details specifications for sensor amplifier models.

Warranties and Disclaimers

Product Warranty Information

Covers KEYENCE's warranty terms and limitations.

Buyer's Transfer Obligations

Requirements for reselling or delivering products to third parties.