Keyence GV-H45, GV-H130, GV-H1000, GV-H450, GV-H45L Instruction 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

!

The GV Series is intended for the detection of target objects. Do
not apply the product to safety circuits for human protection.

!

This product is not of explosion-proof construction. Do not use it in
a location where any flammable gases, liquid, or powder exist.

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 560µW 220µW

IEC 60825-1

Laser Class Class 2 Laser Product Class 1 Laser Product
Output 560µW 220µW

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.

z Aperture label

z IEC warning/explanatory label (CLASS 2)

z 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

2

GV-IM-E

Mounting the sensor amplifier

 Mounting the GV-21/GV-21P (main unit)

1 Align the claw at the bottom of the

main body with the DIN rail. While
pushing the main body in the
direction of the arrow 1, slant it in the
direction of the arrow 2.

2 To dismount the sensor, raise the

main body in the direction of the
arrow 3 while pushing the main body
in the direction of the arrow 1.

When using the amplifier mounting bracket
(OP-76877) (sold separately), mount it as
shown in the diagram to the right.

 Mounting the GV-22/GV-22P (expansion unit)

Several expansion units can be used in connection with the main unit.
Up to three expansion units can be connected to one main unit.

Expansion units with different output types (such as a PNP output main
unit to an NPN output expansion unit) cannot be connected together.

1 Remove the expansion

protective cover from the
GV-21/GV-21P (main unit)

2 Install the amplifiers (expansion units) on the DIN rail.

For more information about mounting, see "Mounting the GV-21/GV-21P (main
unit)".

3 Push the expansion unit into

the main unit connector until
a clicking sound can be
heard.

4

Install the end units
(OP-26751: 2 units in a set)
(sold separately) on either
side of the amplifiers (main or
expansion units). Secure the
end units in place with screws
on top (2 on each end unit).

The end units are mounted in the same way as the amplifiers.

Amplifier wiring

The following information shows the I/O cable.
For more information about the I/O circuit, see page 9 of this Instruction Manual.

*1

GV-22/GV-22P (expansion unit) do not
have brown or blue lines. Power is supplied
to the expansion units through GV-21/GV­21P (main unit).

*2 The external input switches as shown

below depending on the amplifier
OPTIONAL settings.

! oFF. ........Inp ut off

! SFt.......... External shi ft

! bnK.... .....Ba nk switching

! tim........... Timing input

Sensor head part names

Connecting the sensor head

1 Unlock the sensor head

connector and insert it into
back of the amplifier.

2

Turn the round part of the
connector clockwise until a
clicking sound is heard to lock
it.

When shortening the sensor head cable, follow the instructions given in
the "Sensor Head Connector Assembly Manual" included with the sensor
head.

Mounting the sensor head

Use the dedicated mounting bracket to mount the sensor head.
When not using the dedicated mounting bracket, the included insulating sheet must be
inserted between the mounting surface and the sensor head as shown in the diagram.
(When using the dedicated mounting bracket, the insulating sheet is not necessary.)

Mounting and Wiring the Sensor Amplifier

CAUTION

!

When connecting multiple amplifiers (expansion units), first
check to make sure that the power is turned off to all of the
main and expansion units. Connecting the units with the
power turned on may cause damage to the units.

!

Push the amplifiers (expansion units) as far as possible into
the main unit. If they are connected at a slant or not inserted
securely, the units may be damaged.

!

Only GV Series amplifier can be connected (DL Series cannot
be connected). Connecting other amplifiers may cause
damage to the units.

(1)

(3)

(2)

Amplifier mounting bracket

Note

GV-21/
GV-21P

Expansion
protective
cover

Main
unit

Expansion
unit

Connector

End
unit

End
unit

Control output 1

Brown

*1

Blue

*1

Black

White

Pink

*2

Purple

Control output 2

External input

Laser emission
stop input

10-30 V DC

Connecting and Mounting the Sensor
Head

Laser receiver Mounting area

LASER

(Laser radiation

emission indicator)

OUT

(Control output

indicator)

Mounting area

1spot

(Spot reflection

indicator)

Laser

Connector

Connector

Unlocked

Locked

Note

z Mounting when detecting

targets close to a wall

z Mounting when detecting

targets in a hole

Receives little effect
from stray laser light.

Variations in the detection
value with effects from
stray laser light.

The target cannot be detected
when the transmitter or receiver
are blocked.

Sensor head

Insulating sheet

Hexagon socket bolt
(Accessory)

z When detecting uneven workpieces

! Stable detection

even on uneven
areas.

! Incorrect values

can be detected
on the uneven
areas.

3

GV-IM-E

Sensor amplifier part names

*1 The reference surface (DATUM) detection indicator lights up when performing

reference surface detection. For more information, see "Reference surface
detection (DATUM) method (Application)" on page 5 of this Instruction Manual.

*2

The spot reflection indicator lights up during normal detection and turns off during
multiple reflection (when multiple peaks of received light intensity occurs due to
diffuse reflection), insufficient light intensity, and when the target is out of the
detection range.

*3 For more information about the CLP (clamp) function indicator, see "4. Clamp

function setting" on page 8 of this Instruction Manual.

*4 For more information about the timing input indicator, see "8. External input

setting" on page 8 of this Instruction Manual.

Main screen

The main screen can be switched between "Current/setting value display" and "Peak/
bottom value display". The main screen can be switched even during keylock.

Pressing the [Up] and [Down] arrow buttons simultaneously on the main screen
forces the current value (red) to 0*.
* With the default settings. For details, see "9. Shift target value setting" on page 9 of

this Instruction Manual.

When the channel No. 1 indicator is lit, the control output 1 (black line)
setting value is displayed. When the channel No. 2 indicator is lit, the control
output 2 (white line) setting value is displayed.
Operations are different in F-2 mode. (See page 5 of this Instruction
Manual.)

z Current value and display resolution

In the default state, the current value shows 0 when the workpiece is located at
the maximum detection distance. Bringing the workpiece closer to the sensor
head gradually increases the value and displays it up to the minimum detection
distance.

The displayed values indicate guidelines for distances and should not be
used in the actual applications for measurement.

When using sensor head GV-H130

For example, when using the defaults with the setting value (green) at 500, the
comparator output turns on when the current value is 500 or greater and turns off
when it is less than 500.
If multiple reflection (when multiple peaks of received light intensity occurs due to
diffuse reflection) occurs during F-1, F-2, or A-1 modes, the value immediately before
the current value is held.

z Setting value

The following table shows the default setting values for each channel.

z Peak/bottom values

Peak value

: Resets when the detection value exceeds the setting value

and holds the maximum value (peak value) until the detection
value falls below the setting value again.

Bottom value

: Resets when the detection value falls below the setting value

and holds the minimum value (bottom value) until the
detection value exceeds the setting value again.

The held peak and bottom values can be cleared by pressing and

hold the [Up] arrow button.

Sensor Amplifier

Item

Current value

GV-H45 (L) GV-H130 (L) GV-H450 (L)

GV-H1000 (L)

Detecting range (mm)

20.0 to 45.0

55.0 to 130.0

160 to 450 200 to 1000
Digital display (initial) 250 to 0 750 to 0 290 to 0 800 to 0
Display resolution 1 2 1 5

CLP

OUT

LASER

TIM

BANK

SET

SEL

MODE

1
2

1

2

1 spotDATUM

series

Reference surface (DATUM) detection
indicator

*1

(red)

Current value display
(red)

Setting value display

(green)

Spot reflection (1spot) indicator*2

(green)

Arrow
buttons

Output status indicator

(red)

Laser radiation emission
indicator (green)

[SET] button

Channel No. indicator (green)

LED bar

CLP function indicator*3
(red)

[MODE] button

Bank input indicator (green)

Timing input indicator*4 (red)

DATUM

DATUM

DATUM

Setting value/current value display

Setting value (green)

Peak value (green) Bottom value (red)

Channel No. indicators

Current value (red)

Pressing the [MODE] button switches
the channels (channel No. indicators).

Peak value/bottom value display

Pressing the [UP] arrow button
resets the peak and bottom values.

Alternate

1
2

1
2

1
2

or

SET

MODE

SET

MODE

SET

MODE

Note

Note

Operation

mode

Item

Default value

GV-H45 (L) GV-H130 (L) GV-H450 (L) GV-H1000 (L)

F-1, A-1,
A-2

Control output

1 (black)

(Channel 1 lit)

150 500 200 500

Control output

2 (white)

(Channel 2 lit)

125 400 150 400

F-2

Control output 1 (black) HIGH
(Channel 1 lit)

150 500 200 500

Control output 1 (black) LOW
(Channel 2 lit)

100 300 100 300

Control output 2 (white) HIGH
(Channel 1

flashing

)

125 400 150 400

Control output 2 (white) LOW
(Channel 2 flashing)

75 200 50 200

Example

750

0

0mm

55mm

130mm

Current value

Distance

Minimum detection distance

Maximum detection distance

Reference

4

GV-IM-E

Detection method

The GV Series has two type of detection methods: "Distance detection method" and
"Reference surface (DATUM) detection method".
The reference surface (DATUM) detection method can only be used when
performing reference surface calibration.

Control output 2 is fixed to distance detection method for all operation modes.

 Distance detection method (Normal)

Detects the distance between the detection target and the sensor head, and
then performs control output. The following table shows each operation mode
and the auto calibration that can be used.

z Area detection mode (F-2 mode)

Operation image

When using the F-2 mode, the channel No. indicator switches in the following order
each time the [MODE] button is pressed.

Configure the sensitivity setting in F-1 mode (with the default settings).

2-point calibration

The setting is automatically calculated as the mean value detected from two
points: with the workpiece and without the workpiece.

1 Press the [SET] button once

without a workpiece in place.

The current value without the
workpiece is read.

2 Place a workpiece in the

detection position, and quickly
press the [SET] button once
again.

This concludes 2-point calibration
and the sensor returns to the
detection state.

If there is very little difference between the values obtained in

Step 1 and Step 2, then "---" flashes in the setting value display
area after calibration is complete. The setting value is still
updated.

Fine-tune setting value

Use the [Up] and [Down] arrow buttons to fine-tune the setting value.

Reference surface (DATUM) calibration

Use DATUM calibration when comparator output cannot be performed
correctly during 2-point calibration (due to problems such as chattering from
the surface of the workpiece).

3 Press the [SET] button once without a workpiece in place

(reference surface).

4 Using the same conditions,

Item Setting range

Setting

value
fine-

tuning

-199 to 999

Reference

DATUM

SET

MODE

1
2

Increases
the setting
value

Decreases
the setting
value

Using Basic Operations

Configuring the Sensitivity Setting and
Operation Mode

Operation mode Description

Usable

auto calibration

General F-1

Normal detection mode

The most general mode.
ON/OFF judgment is performed
based on one setting value.

2-point calibration
Full auto calibration
Maximum sensitivity
setting

Special

F-2

Area detection mode

On/OFF judgment is performed
on an area based on two
settings.

2-point area calibration
1-point area calibration

A-1

Edge hold mode

Detects the change in distance
(derivation) to the target and
holds the display.

2-point calibration
Full auto calibration
Maximum sensitivity
setting

A-2

Surface detection mode

When multiple beams of light are
reflected from the detection
target, the closest reflected light
is judged as the detection value.

2-point calibration
Full auto calibration
Maximum sensitivity
setting

Note

OFF

OFF

ON

LOW setting value

HIGH setting value

Only this will turn ON.

1
2

1
2

1
2

1
2

MODE

Press once.

MODE

Press once.

MODE

Press once.

MODE

Press once.

Control output 1
(black) HIGH setting
value
! Channel No. 1

indicator lights up

Control output 1
(black) LOW setting
value
! Channel No. 2

indicator lights up

Control output 2
(white) HIGH setting
value
! Channel No. 1

indicator flashes

Control output 2
(white) LOW setting
value
! Channel No. 2

indicator flashes