KEYENCE LK-G User Manual

96M1573

High-speed, High-accuracy

CCD Laser Displacement Sensor

LK-G Series

User’s Manual

Read this manual before using the system in order

to achieve maximum performance.

Keep this manual in a safe place for future

reference.

Introduction

This Instruction Manual describes the basic operations and hardware functions of the LK-G Series. Read this manual carefully to ensure the optimum performance and full function of the LK-G Series before use.

Keep this manual in a safe place for future reference. Be sure that the person who will ﬁnally operate this product receives this manual.

■

Symbols

These symbols alert you to matters concerning the prevention of human injury and product damage.

DANGER

Failure to follow the instructions may lead to death or serious injury.

WARNING

Failure to follow the instructions may lead to injury.

CAUTION

Failure to follow the instructions may lead to product damage or failure of the product.

Note

Provides additional information on proper operations that can be easily mistaken.

Reference

Provides advanced and useful information for operation.

Safety Precautions

General Cautions

• At startup and during operation, be sure to monitor the functions and performance of the LK-G Series.

• We recommend that you take substantial safety measures to avoid any damage in the event of a problem occurring.

• Do not attempt to open or modify the LK-G Series or use it in any way other than as described in the speciﬁcations. If the LK-G Series is modiﬁed or used other than as described, the warranty will be voided.

• When the LK-G Series is used in combination with other devices, functions and performance may be degraded, depending on the operating conditions and surrounding environment.

• Do not use the LK-G Series for the purpose of protecting the human body.

• Do not allow the temperature to change sharply around the LK-G Series, including the accessories. Otherwise, condensation may lead to malfunction.

WARNING

Follow the safety precautions below to ensure safe operation

• Apply the correct power voltage. Failure to do so may cause ﬁre, electric shock, or malfunction.

• Do not attempt to disassemble or modify the unit. Doing so may cause ﬁre or electric shock.

Handling abnormalities

Turn off the power immediately in the following cases. Using the unit in an abnormal condition could cause ﬁre, electric shock, or accident.

Contact the nearest KEYENCE ofﬁce for repair.

• If liquid including water, chemicals or debris enters the unit.

• If the unit is dropped or the case is damaged.

• If abnormal smoke or odor is present.

LK-G-M-NO0-E

CAUTION

Follow the safety precautions below to ensure safe operation

• Be sure to turn the power off when you plug/unplug the cable that leads to the unit and its accessories. Not following this caution may result in damage.

• Do not turn off the power while setting items. The data being set or all the data may be lost.

• Do not block the vent holes on the unit. Increase of internal temperature may cause failure.

Installation environment

To use the LK-G 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 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 impact

• Location where water, oil or chemicals may splash onto the unit

• Location where static electricity is easily generated

Corrective action for noise

Do not install the LK-G Series near a power source or high-voltage cable, otherwise noise may cause the LK-G Series to malfunction. Take corrective action for noise by using noise ﬁlters, laying cables separately, and/or installing insulation on the controller and the measuring unit. Use the single core shielded cable for the analog output cable.

Inﬂuence of ambient temperature

A change in the ambient temperature may cause the measurement to ﬂuctuate. Be sure to keep it stabilized. When the ambient temperature changes by 10 °C, it takes 60 minutes for the distribution of internal temperature to equalize.

Operating ambient light intensity level

Do not use the LK-G Series near a lighting system that repeatedly and rapidly turns on and off. If it is unavoidable to use the unit in such a place, install a light shielding board or the like so that the light will not affect the measurement.

Warming up

Before using the LK-G Series, wait approximately 30 minutes after the power is turned on. Otherwise, the measured value may gradually ﬂuctuate because the circuit is not immediately stable after the power is turned on.

LK-G-M-NO0-E

Inﬂuence of dust or dirt

The measurement may ﬂuctuate due to dirt, dust or ﬂuid such as water or oil in the following cases:

• Adhesion on the protection glass: Blow the dirt off with clean air. If dirt persists, wipe the glass surface gently using a soft cloth moistened with alcohol.

• Adhesion on the surface of the measuring target: Blow the dirt off with clean air or wipe it off.

• Intrusion of ﬂoating or sprinkled dust or dirt into the light-axis range: In this case, take corrective action with a protective cover or air purge.

Notes

Inﬂuence of vibration

When the measuring target is vibrating, the measured value may ﬂuctuate. In this case, increase the average number of times of measurement to achieve a more accurate value.

Measuring target

The measured value may ﬂuctuate if the shapes or surfaces of the measuring targets vary. In this case, use a known target and perform appropriate correction using the calibration function.

Handling

Do not wipe with a wet cloth, benzene, or thinner. Doing so may change the color or shape of the unit. If the unit has much dirt on it, wipe it off with a cloth moistened with a mild detergent, then wipe with a soft dry cloth.

Effect of atmospheric motions

Slow atmospheric motions may affect the measurement and result in ﬂuctuation of the measured value.

In such a case, take the following countermeasures.

• Enclose the measurement portion with an appropriate enclosure.

•

Agitate the air between the measurement portion and the workpiece more strongly with a fan.

Precautions on CE Marking

The LK-G Series conforms to the EMC Directive subject to the conditions that the following requirements are satisﬁed. In order to use this equipment in the EU countries, be sure that the following requirements have already been satisﬁed beforehand. The applicable standards are explained below.

LK-G-M-NO0-E

EMI: EN61326, class A EMS: EN61326 Length of the power cord that is connected to the Controller, and length of all input/output cords must be limited to shorter than 30 m.

Precautions for Wiring

Part of the circuits between the inputs and output are internal common. Make sure that a potential difference does not occur between internal common terminals due to a potential difference between wires or external devices. Otherwise, it may cause malfunctions in the unit or external devices.

Examples of Wiring

LK-G3001V/LK-G3001(NPN type)

24 VDC (-), COM OUT (output COM), and COM IN (input COM) are all common via a choke coil. Also, COM OUT and COM IN of the expansion connector are common via a choke coil.

LK-G3001(V) LK-G3001(V)

DC24V

COM OUT

COM IN

DC24V(+)

DC24V(-)

COM OUT

COM IN

DC24V(+)

DC24V

DC24V(-)

The power supply (24 VDC) shorts via the COM terminals, causing malfunctions.

LK-G-M-NO0-E

LK-G3001PV/LK-G3001P (PNP type)

24 VDC (-) and COM IN are common via a choke coil. Also, COM IN of the expansion connector is common via a choke coil.

LK-G3001P(V)

COM OUT

LK-G3001P(V)

COM OUT

COM IN

DC24V(+)

DC24V(-)

DC24V

COM IN

DC24V(+)

DC24V

DC24V(-)

The power supply (24 VDC) shorts via the COM terminals, causing malfunctions.

Common for all types

24 VDC (-), SG (GND) of USB, and SG (GND) of RS-232C are all common via a choke coil. Make sure that a voltage potential difference does not occur with external devices such as computers or PLC. If a voltage potential difference occurs, use the unit with insulation on the LK-G power supply and the I/O terminals other than RS-232C and USB.

Precautions for a Positive Grounding Environment

When using a positive grounding environment, watch out for shorts through the COM terminal.

LK-G3001V/LK-G3001 (NPN type)

GND

LK-G3001(V)

COM OUT

COM IN

GND

LK-G3001(V)

COM OUT

COM IN

DC24V

LK-G-M-NO0-E

DC24V(+)

DC24V(-)

DC24V(+)

DC24V

DC24V(-)

The power supply (24 VDC) shorts via the COM terminals, causing malfunctions.

LK-G3001PV/LK-G3001P (PNP type)

GND

LK-G3001P(V)

COM OUT

GND

LK-G3001P(V)

COM OUT

DC24V

COM IN

DC24V(+)

DC24V(

DC24V

)

COM IN

DC24V(+)

DC24V(

)

The power supply (24 VDC) shorts via the COM terminals, causing malfunctions.

Precautions when connecting to computers or other external devices

When working in a positive grounding environment, when the LK-G is connected to a computer through USB in order to use LK-Navigator or when establishing RS-232C communication with a computer, take precautions to avoid shorts in between the SG (GND) terminals for the computer and the LK-G.

24 VDC (-), SG (GND) of USB, and SG (GND) of RS-232C are all common via a choke coil. Make sure that a voltage potential difference does not occur with external devices such as computers or PLC. If a voltage potential difference occurs, use with insulation on the LK-G power supply and the I/O terminals other than RS-232C and USB.

➀

Computer

GND termin al

RS-232C/ USB GND

GND

RS-232C/ USB cable

DC24V

➁

LK-G3001P(V)

RS-232/ USB GND

DC24V(

DC24V(+)

The power supply (24 VDC) shorts via the SG (GND) terminals for LK-G and the computer, causing malfunctions. Insulate the computer (➀ in the figure) and LK-G (➁ in the figure).

* The internal wiring in the computer, PLC, or other device differs depending on the device. For details, refer to the instruction manual for each

)

device.

LK-G-M-NO0-E

Safety Precautions on Laser Products

The models of the LK-G Series are classiﬁed in terms of laser class as follows:

Model LK-G35/LK-G30

Wavelength 650 nm FDA (CDRH)

Part 1040.10 IEC60825-1:

1993 + A1: 1997 + A2: 2001

JIS C6802: 1997

Maximum output 4.8 mW 0.95 mW 0.3 mW Class Class3a Class2 Class2 Maximum output 4.8 mW 0.95 mW 0.3 mW

Class

Maximum output 4.8 mW 0.95 mW 0.3 mW Class Class 3A Class 2 Class 1

LK-G85/LK-G80 LK-G155/LK-G150 LK-G405/LK-G400 LK-G505/LK-G500

Class 3R Class 2

LK-G37/LK-G32 LK-G87/LK-G82 LK-G157/LK-G152 LK-G407/LK-G402 LK-G507/LK-G502

LK-G15/LK-G10

Class 1

*LK-G15/LK-G10 is a class 1 laser product according to IEC60825-1.

WARNING

Use of controls or adjustments or performance of procedures other than those speciﬁed herein may result in hazardous radiation exposure.

Cautions on class

3333a/3R/3A laser products

Observe the following instructions. Otherwise, injury to the human body (eyes and skin) may result.

• Do not direct the laser beam at other persons.

• Never look at the laser beam through optical instruments such as a microscope, magniﬁer or telescope.

• Make the laser path as short as possible and be sure to terminate the laser path with a diffusion reﬂector or diffusion absorber so that the laser beam does not diffuse. (It is recommended to install the protection enclosure.)

• Install the laser product so that the laser beam be located well above or below eye level.

• Install the laser product carefully so that the laser beam is not unitentionally directed at mirror- like surfaces.

• It is recommended to wear protective eye goggles.

• Do not disassemble the LK-G Series.

• Do not look directly at the laser beam.

LK-G-M-NO0-E

Cautions on Class

Observe the following instructions. Otherwise, injury to the human body (eyes and skin) may result.

• Do not direct the laser beam at other persons.

• Do not disassemble the LK-G Series.

• Do not stare at the laser beam.

Cautions on Class 1 laser products

• Do not look directly at the laser beam for an extended period of time.

• Do not disassemble the LK-G Series.

2222/ 2 laser products

LK-G-M-NO0-E

The LK-G Series is equipped with the following safety features based on IEC60825-1 and

CDRH Part 1040.10 (Safety of laser products).

■ Laser radiation emission warning indicator

Lights or ﬂashes while the LK-G Series is in operation.

Laser emission warning indicator

aser emission

warning indicator

Laser emission warning indicator

■ Laser remote interlock connector

The laser beam stops radiation emission upon opening the circuit between the REMOTE terminal and the COM IN terminal.

Refer to "12-pin I/O terminal block" (page 4-2) for connecting terminals.

■ Beam stop or attenuator

The laser beam stops radiation emission by the following operations :

• NPN type: Short-circuiting between the LASER OFF terminal and COM IN terminal.

• PNP type: Apply the voltage between the LASER OFF terminal and COM IN terminal.

Refer to "Expansion Connector" (page 4-5) for connecting terminals.

LK-G-M-NO0-E

NPN type

LASER OFF A

LASER OFF B

COM IN

REMOTE

COM IN

Short-circuiting wire

PNP type

LASER OFF A

LASER OFF B

COM IN

* The laser remote interlock

connector is delivered with the wire for short-circuiting installed.

■ Warning labels

The contents of warning indications and locations for attaching warning labels are described below.

The FDA (CDRH) warning labels are attached to the unit when shipped from the factory. Labels other than the FDA (CDRH) label are supplied with the unit. Attach the other label(s) to the locations as shown in the ﬁgure on page 9 according to the destinations of the product.

Warning label are not supplied with LK-G15/LK-G10, because these models are IEC class 1 and JIS class 1 products.

■ Label contents

● LK-G35/LK-G30/LK-G85/LK-G80/LK-G155/LK-G150/LK-G405/LK-G400/LK-

G505/LK-G500

FDA (CDRH) IEC (English)

IEC (German) IEC (French)

JIS (Japanese) GB (Simplified Chinese)

LK-G-M-NO0-E

● LK-G37/LK-G32/LK-G87/LK-G82/LK-G157/LK-G152/LK-G407/LK-G402/LK-

G507/LK-G502

FDA (CDRH) IEC (English)

IEC (German) IEC (French)

JIS (Japanese) GB (Simplified Chinese)

● LK-G15/LK-G10

FDA (CDRH)

LK-G-M-NO0-E

■ Label attachment locations

● LK-G35/LK-G30/LK-G37/LK-G32

LK-G85/LK-G80/LK-G87/LK-G82

● LK-G155/LK-G150/LK-G157/LK-G152

LK-G405/LK-G400/LK-G407/LK-G402 LK-G505/LK-G500/LK-G507/LK-G502

● LK-G15/LK-G10

AVOID EXPOSURE

LASER RADIATION IS EMITTED FROM THIS APERTURE.

CAUTION

LASER RADIATION DO NOT STARE INTO BEAM SEMICONDUCTOR LASER WAVELENGTH MAXIMUM OUTPUT CLASS LASER PRODUCT

650nm

0.3mW

CAUTION

LASER RADIATION DO NOT STARE INTO BEAM SEMICONDUCTOR LASER WAVELENGTH MAXIMUM OUTPUT CLASS LASER PRODUCT

AVOID EXPOSURE

LASER RADIATION

650nm

IS EMITTED FROM

0.3mW

THIS APERTURE.

LK-G-M-NO0-E

Organization of this Manual

Chapter

Before Use

Chapter

Operations and Functions during Measurement

Chapter

Function Settings

Chapter

Input/Output Terminals

Chapter

RS-232C

Chapter

Specifications

Describes cautions and preparations before use.

Describes the operations that can be performed during displacement measurement and their functions.

Describes the functions and setting procedures of the Head settings, Output settings, Common settings, and Environment settings.

Describes the specifications of the input/output terminals and timing chart.

Describes the functions of the RS-232C interface and the setting procedures.

Describes the specifications of the controller and the head, outside dimensions, and characteristics.

2 3

4 5 6

Appendices

Describes the troubleshooting methods, contents of error messages and optional products.

LK-G-M-NO0-E

Safety Precautions .................................. 1

General Cautions............................... 1

WARNING ..................................... 1

CAUTION ...................................... 2

Notes.................................................. 3

Precautions on CE Marking ............... 3

Precautions for Wiring................... 4

Safety Precautions on Laser Products

Organization of this Manual .................. 13

Table of Contents .................................. 14

Chapter 1 Before Use

System Configuration ........................... 1-2

Checking the Package Contents ......... 1-3

LK-G3001V/LK-G3001PV

(Single Unit Type Controller)........... 1-3

LK-G3001/LK-G3001P

(Separate Type Controller) ............. 1-3

LK-GD500

(Separate Type Controller) ............. 1-4

Head (LK-G15/LK-G10).................. 1-4

Head (Model other than LK-G15/

LK-G10) .......................................... 1-4

LK-GC2/GC5/GC10/GC20/GC30 ... 1-5

Identifying Part Names and Functions

Controller ........................................ 1-6

Head ............................................... 1-8

Installing and Connecting the Heads and

Optional Parts ...................................... 1-9

Installing the Head.......................... 1-9

Attaching the ND Filter (Option) ... 1-15 Installations Depending on the

Measurement Target..................... 1-16

Installing the Controller................. 1-17

Connection.................................... 1-22

Outline of Measurement and Settings 1-24

Switching Modes .......................... 1-24

..... 7

.... 1-6

Setting Mode................................. 1-25

Returning the LK-Series to the Factory

Default Settings .................................. 1-26

Chapter 2

Operations and Functions

during Measurement

Switching the Measurement

Value Displays .....................................2-2

Setting the Tolerance

Comparator Value ................................ 2-3

The Function of the

Tolerance Settings .......................... 2-3

Hysteresis .......................................2-5

Setting the Display Value Instantaneously

to Zero (Auto-Zero) ..............................2-6

Program Function ................................ 2-8

Switching Program Nos. ......................2-9

Performing Statistical Computation

with the Measurement Value .............. 2-10

Chapter 3 Function Settings

Measurement, Data Flow and

Functions ............................................. 3-2

Setting the Head .................................. 3-3

List of Functions and Function Nos

List of Default Values and Setting

Ranges............................................ 3-3

List of the Head Setting Screens ....3-4

Setting ABLE................................... 3-5

Setting the Measurement Mode

According to the Measuring

Target.............................................. 3-7

Specifying the Process When

Measurement is Not Possible

(Alarm Process) ..............................3-8

Automatically Teaching the Adjustment Range

of ABLE According to the Target

Setting the Mounting Mode........... 3-12

Setting the Conditions of the Measurement

Value Output ...................................... 3-13

.... 3-3

.......... 3-10

LK-G-M-NO0-E

List of Functions and Function Nos

List of Default Values and Setting

Ranges ..........................................3-15

List of the OUT Setting Screens ....3-16

Calculating Between the Heads....3-18

Setting the Scaling for Measurement

(Calibration)...................................3-20

Stabilizing the Measurement by

Filtering..........................................3-22

Using the Hold Function

(Measurement Mode)....................3-25

Setting the Trigger Condition ........3-31

Measuring with Offset....................3-32

Setting the Unit and the Minimum

Display Unit ...................................3-33

Scaling the Analog Output ............3-34

Outputting the Analog Output Without

Holding..........................................3-36

Setting the Common Function ............3-37

List of Functions and Function Nos

List of Default Values and Setting

Ranges ..........................................3-37

List of the Common Function Setting

Screens .........................................3-38

Setting the Sampling Rate of

Measurement Value.......................3-39

Setting the Mutual Interference

Prevention Function.......................3-40

Setting the External Timing Input ..3-41 Setting the Output Form of the

Tolerance Comparator ..................3-42

Setting the Strobe Output Time .....3-43

Accumulating the Measurement Value in the Memory (Data Storage Function)

Setting the Operations of the Equipment

(Environment Settings) .......................3-46

List of Functions and Function Nos

List of Default Values and Setting

Ranges ..........................................3-47

List of the Environment Setting Screens

.......................................................3-48

..3-13

.....3-37

.......3-44

.....3-46

Setting the Communication

Specifications of the RS-232C...... 3-49

Setting the Program Switching Method

...................................................... 3-50

Copying/Initializing the Program .. 3-51 Preventing Erroneous Operation on the

Panel (Panel Lock) ....................... 3-53

Reducing the Power Consumption

(Eco Mode)................................... 3-54

Chapter 4 Input/Output Terminals

Identifying Names and Functions of the

Input/Output Terminals ........................ 4-2

Functions of the Input/

Output Terminals ............................ 4-2

Functions of the Input and Output

Signals............................................ 4-7

Timing Chart ...................................... 4-13

Chapter 5 RS-232C

Specifications ...................................... 5-2

Pin Layout....................................... 5-2

Communication Specifications....... 5-2

Communication Performance and Communication Mode in the

Measurement State ........................ 5-3

Overview of the Settings According to

External Devices............................. 5-3

Outputting Measurement Values and

Changing Settings through Commands

Connecting the PC or PLC Link Unit5-4

Mode Change Command............... 5-7

Measurement Control Command

Format ............................................ 5-8

Change Parameter Command ..... 5-13

Check Parameter Command Format

Timing Chart ................................. 5-21

Outputting Measurement Values in External

Synchronization ................................. 5-22

Environment Settings Parameters

.... 5-4

.. 5-20

... 5-22

LK-G-M-NO0-E

Output........................................... 5-22

Timing Chart ................................. 5-23

Output Format............................... 5-24

ASCII Code Table (Reference) ..... 5-24

Chapter 6

Specifications of the LK-G

Series

Specifications ...................................... 6-2

Specifications of the Controller....... 6-2

Specifications of the Head.............. 6-4

Specifications of the Head-to-Controller

Cable ............................................ 6-15

Status Table.................................. 6-15

Response Delay Time................... 6-17

Outside Dimensions...................... 6-17

Characteristics ................................... 6-25

Spot Dimension............................. 6-25

Mutual Interference....................... 6-27

Appendices

Troubleshooting....................................A-2

Error Messages.....................................A-5

List of Optional Products ......................A-6

Index.....................................................A-8

LK-G-M-NO0-E

Before Use1

This chapter describes the conﬁguration of the LK-G Series, cautions and required preparation before use. Be sure to read this section thoroughly before using the LK-G Series.

System Conﬁguration ............................................................1-2

Checking the Package Contents ...........................................1-3

Identifying Part Names and Functions ..................................1-6

Installing and Connecting the Heads and Optional Parts......1-9

Outline of Measurement and Settings .................................1-24

Returning the LK-Series to the Factory Default Settings.....1-26

LK-G-M-NO1-E

1-1

1 Before Use

System Conﬁguration

The LK-G Series can be used for various purposes in combination with commercially available devices.

Indicator light/Buzzer Issues an alarm depending on the comparator result output.

Photoelectric/Proximity sensor Transmits a signal to the TIMING input when the target is detected.

LK-G Series

LK Navigator

Setup support software (LK-H1W) *2

USB/RS-232C

Controller LK-G3001V/LK-G3001PV LK-G3001/LK-G3001P

Head (two heads max.) LK-G15/LK-G10 LK-G35/LK-G30 LK-G85/LK-G80 LK-G155/LK-G150 LK-G405/LK-G400 LK-G505/LK-G500

PC Enables control and acquisition of the measurement value from the RS-232C or the parallel I/O board.

Programmable controller Enables timing control of the measurement and the switching of program No. as well as the control output and the measurement value acquisition.

Recorder Records the measurement result.

*1: The controller (LK-G3001V/LK-G3001PV) can be separated into the display panel and the controller main

unit. You can also purchase them separately.

*2: For the details of the setup support software (LK-H1W) "LK-Navigator", refer to "LK-Navigator User’s

Manual" (The PDF file stored in the CD-ROM).

1-2

LK-G-M-NO1-E

1 Before Use

Checking the Package Contents

The LK-G Series consists of the following models. Check if the parts and equipment listed below are included in the package of the model you purchased before using the unit.

LK-G3001V/LK-G3001PV (Single Unit Type Controller)

Controller User’s Manual Screwdriver

LK-G3001V/ (this manual): 1 : 1

LK-G3001PV: 1

LK-G3001/LK-G3001P (Separate Type Controller)

Controller User’s Manual Screwdriver

LK-G3001/ (this manual): 1

LK-G3001P/: 1

Packed separately

LK-H1W (

• Setup support

USB cable (3m)

Packed separately LK-H1W (

• Setup support

USB cable (3m)

CD-ROM)

software "LK-Navigator"

software User’s Manual (PDF ﬁle)

CD-ROM)

software "LK-Navigator"

software User’s Manual (PDF ﬁle)

LK-G-M-NO1-E

1-3

1 Before Use

LK-GD500 (Separate Type Controller)

Display panel Panel attachment ring LK-GD500: 1 : 1

The communication cable between the controller and the separate type display panel is sold separately. Refer to page A-6 for details.

Head (LK-G15/LK-G10)

Head: 1

LK-G10

Head (Model other than LK-G15/LK-G10)

Head: 1 Laser sticker sheet: 1

1-4

LK-G-M-NO1-E

1 Before Use

LK-GC2/GC5/GC10/GC20/GC30

Head-to-controller cable: 1

LK-GC2 : 2-m cable LK-GC5 : 5-m cable LK-GC10 : 10-m cable LK-GC20 : 20-m cable LK-GC30 : 30-m cable

* We have thoroughly inspected the package contents before shipment. However, in the

event of defective or broken items, contact your nearest KEYENCE ofﬁce (address listed in the end of this manual).

For the optional products,refer to "List of Optional Products"(page A-6).

LK-G-M-NO1-E

1-5

1 Before Use

Identifying Part Names and Functions

This section describes the name and function of each part.

Controller

Display panel

1 Display panel ﬁxing case

2 Display panel ﬁxing screw 3 Measurement value indicators

Display the measurement value, tolerance comparator value, and various statistical results. The setting items are displayed during setting.

Green: Within the tolerance Red: Outside the tolerance

4 Comparator output indicator

Lights during the comparator output (HI, GO, or LO).

5 Timing input indicator

Lights when the timing signal is being input.

6 Head status display indicator

Displays the laser emission status and the measurement status.

LASER ON Laser emission LED. Lights while

STABILITY

BRIGHT

DARK

the LK-G Series is in operation.

Lights in green or orange within the

measurement range. Lights in red outside

the measurement range, alarm, or laser-off.

Lights at the exceeding light intensity alarm.

Lights at the light intensity shortage alarm.

7 Operation keys

Displays and descriptions of the measurement value indication

Display Description

Numerical value (±999999)

FFFFFF (HI output: ON. Monitor output: + 10.8 V) Displayed when the value exceeds the display range.

–FFFFFF (LO output: ON. Monitor output: –10.8 V)

- - - - - -

(HI, GO and LO outputs: OFF. Monitor output: –10.8 V)

Displays the measurement result in numerical value.

The display unit, decimal point position, and minimum

display unit vary depending on the settings.

Displayed when the value drops below the display range.

Displayed during the comparator standby state.

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LK-G-M-NO1-E

Operation keys

Key Function

1 Before Use

• During measurement it calls the Program switch mode.

• During measurement it calls the Tolerance setting mode.

• When pressed for one second, it calls the Operation setting mode.

• During setting it cancels the setting content and returns to the previous setting.

• During measurement it calls the Statistics display mode.

• During setting it determines the content.

• During measurement it sets the measurement value to zero.

• When pressed for three seconds it cancels auto-zero.

When pressed for three seconds while inputting the value, it initializes the selected item.

•

During setting it switches the display to the next setting item.

• While inputting the value it shifts one digit right.

• When pressed for one second or more it shifts in higher speed.

During measurement it changes the display for OUT1, OUT2 or both at the same time.

•

• During setting it switches the setting content.

• While inputting the value it switches symbols or sets numerical values.

• When pressed for one second or more it shifts in higher speed.

Terminal panel

1 RS-232C connector

Establishes communication with a PC or a PLC.

Refer to "Pin Layout" (page 5-2).

2 USB connector

Used when connecting the PC via USB.

Refer to "LK-Navigator User’s Manual" for details.

3 6-pin terminal block

Refer to "6-pin I/O terminal block" (page 4-4).

4 Expansion connector

Refer to "Expansion connector" (page 4-5).

5 Head connectors 6 Laser emission LED.

Lights while the LK-G series operates.

7 Display panel connector

Connects the communication cable between the display

panel and the controller.

8 12-pin terminal block

Refer to "12-pin I/O terminal block" (page 4-2).

LK-G-M-NO1-E

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1 Before Use

Head

1 Sensor (emitter)

Emits the laser beam for measurement. It

is protected with a glass cover.

2 Sensor (receiver)

Receives the laser beam for measurement. It is protected with a glass window.

3 Attachment holes for the ND ﬁlter

Used for attaching the ND ﬁlter (LK-F1/ LK-F2).

4 Installation holes 5 Connecting cable

Connected to the head-to-controller cable.

6 Laser radiation emmission LED

Lights or ﬂashes while the LK-G Series is in operation.

Status LED

Center of the measurement range

Within the measurement range

Outside the measurement range Alarm Laser off

Lights in green

Lights in orange

Flashes in orange

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LK-G-M-NO1-E

1 Before Use

Installing and Connecting the Heads and Optional Parts

Installing the Head

Adjust the distance between the head and the measuring target, and ﬁx the head with the screws at the two installation holes.

Note

Insulated mounting is recommended when using the head under the positive grounding environment.

■ LK-G15/LK-G10

• Installation procedure

LK-G10

M4r35 mm or more

The measurement range is shown in the ﬁgure below.

LK-G10

Reference

distance

10 mm

Reference

distance

0 mm

+1mm Measurement range –1 mm (–0.37mm)

* The value inside the parentheses ( ) is when the sampling rate is 20 µs.

Reference

The laser emission LED at both diffuse reﬂection and specular reﬂection lights in green within ±0.05 mm of the reference position, and lights in orange in the other positions in the measurement range.

LK-G-M-NO1-E

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1 Before Use

■ LK-G35/LK-G30/LK-G37/LK-G32

• Installation procedure

M4r35 mm or more

The measurement range is shown in the ﬁgure below.

• Diffuse reﬂection setup • Specular reﬂection setup

Reference

distance

30 mm

Reference

distance

0 mm

+5mm Measurement range –5 mm (–1.8 mm)

Reference

distance

23.5 mm

Reference

distance

0 mm

40°

+4.5mm Measurement range –4.5mm (–1.6 mm)

* The value inside the parentheses ( ) is when the sampling rate is 20 µs.

Reference

• The laser emission LED at both diffuse reﬂection and specular reﬂection lights in green within ±0.25 mm of the reference position, and lights in orange in the other positions in the measurement range.

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