KEYENCE GV Series User Manual

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

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.

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

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.

Safety Precautions

•

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.

•

WARNING

Safety Precautions on Laser Products

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.

 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.

•

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

WARNING

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.

Model

Item

GV-H45, GV-H130,

GV-H450, GV-H1000

Description

GV-H45L, GV-H130L,

GV-H450L, GV-H1000L

Wavelength 655nm

FDA (CDRH)
Part 1040.10

IEC 60825-1

* The laser classification for FDA(CDRH) is implemented based on IEC60825-1 in

accordance with the requirements of Laser Notice No.50.

Laser Class

Output 560μW220μW
Laser Class Class 2 Laser Product Class 1 Laser Product
Output 560μW220μW

Class Laser Product

Class 1 Laser Product*

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.

Checking the Package Contents

Check if the parts and equipment listed below are included in the package of the
model you purchased before using the unit.

 Sensor amplifier

LASER

DATUM

1

OUT

1spot

2

SET

1
2

BANK

SEL

TIM

CLP

MODE

series

LASER

DATUM

1

OUT

1spot

2

SET

1
2

BANK

SEL

TIM

CLP

MODE

series

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.

 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.

1

GV-IM-E

Mounting and Wiring the Sensor Amplifier

(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

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.

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.

•

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

CAUTION

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

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.

Connecting and Mounting the Sensor Head

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.

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.

GV-IM-E

*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 ......... Input off

• SFt .......... External shift

• bnK ......... Bank switching

• tim........... Timing input

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.)

2

Sensor Amplifier

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

Example

750

0

0mm

55mm

130mm

Current value

Distance

Minimum detection distance

Maximum detection distance

Reference

Sensor amplifier part names

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

*2

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

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

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.

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

Clamp function setting" on page 8 of this Instruction Manual.

input setting" on page 8 of this Instruction Manual.

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.

Operation

mode

Control output
(Channel 1 lit)

F-1, A-1,
A-2

Control output
(Channel 2 lit)

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

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

F-2

Control output 2 (white) HIGH
(Channel 1

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

Item

1 (black)

2 (white)

flashing

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

)

Default value

150 500 200 500

125 400 150 400

150 500 200 500

100 300 100 300

125 400 150 400

75 200 50 200

z Peak/bottom values

Peak value

Bottom 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.

: 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.

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.

Detecting range (mm)
Digital display (initial) 250 to 0 750 to 0 290 to 0 800 to 0
Display resolution1215

*

.

Item

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

20.0 to 45.0

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

Current value

55.0 to 130.0

160 to 450 200 to 1000

GV-H1000 (L)

3

GV-IM-E

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

Note

OFF

OFF

ON

LOW setting value

HIGH setting value

Only this will turn ON.

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

Configuring the Sensitivity Setting and Operation Mode

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.

Operation mode Description

Normal detection mode

General F-1

Special

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

Area detection mode

On/OFF judgment is performed

F-2

on an area based on two
settings.

Edge hold mode

Detects the change in distance

A-1

(derivation) to the target and
holds the display.

Surface detection mode

When multiple beams of light are
reflected from the detection

A-2

target, the closest reflected light
is judged as the detection value.

z Area detection mode (F-2 mode)

Operation image

Usable

auto calibration

2-point calibration
Full auto calibration
Maximum sensitivity
setting

2-point area calibration
1-point area calibration

2-point calibration
Full auto calibration
Maximum sensitivity
setting

2-point calibration
Full auto calibration
Maximum sensitivity
setting

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

MODE

Press once.

1
2

1
2

MODE

Press once.

1
2

MODE

Press once.

1
2

MODE

Press once.

GV-IM-E

4

z Edge hold mode (A-1 mode)

Detection
value

Control
output

ON
OFF

0

Note

Reference

Influence of diffuse

reflection

(Multiple reflection)

Split spot

(Multiple reflection)

Insufficient light

intensity

Reference

Upper limit

Lower limit

Reference

This operation mode is suitable for detecting workpieces on a conveyer or
detecting workpieces with waving backgrounds. It ignores slow distance
changes and only detects workpieces (sudden changes in height).

When height differences greater than the setting value are detected (low areas
become high), the value at the detected time are held and displayed, and
control output starts.
If the difference is small and does not exceed the setting value, the display stays as 0.
When height differences greater than the setting value are detected (high areas
become low), detection value becomes 0 and control output is stopped.

Configuring the sensitivity setting for distance
detection method

 2-point calibration (operation modes: F-1, A-1, A-2)

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.

The setting value is calculated as the mean
value between the value obtained in step 1
and the value obtained in step 2.

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

• When edge hold mode (A-1 mode) is selected, edge hold mode only
operates on channel 1. Channel 2 operates under distance
measurement mode (F-1 mode).

• If the edges are gentle (such as spherical or tilted workpieces), this
mode may not be able to detect workpieces or may output the value
incorrectly.

• Send the workpiece past the sensor head so that the area for
detecting height differences is parallel to the sensor head. See
"When detecting uneven workpieces" (page 3).

•

When a detection value is being held, press and hold the [Up] and
[Down] arrow buttons at the same time to set the current value to 0
(regardless of the shift target value) and to turn off output. The
current value for channel 2 changes to 0 as well.

• If the external input function is set to "SFt" and the external input

(pink line) is turned on, the control output turns off and the current
value becomes 0. (When channel 2 is selected, the current value
becomes 0 as well. Turning the laser emission stop input on and
off performs a similar action, but it only changes the current value
of the channel to 0.)



Reference surface detection (DATUM) method (Application)

This method memorizes the background (reference surface) and uses it to
perform comparator output when there is a workpiece (when the state differs
from the reference surface).

The reference surface detection (reference surface calibration) can only be
used on Channel 1 of operation mode F-1/F-2.

Operation

mode

General F-1

Special F-2

Use the reference surface (DATUM) detection method in the following situations:

Description

Turns on control output when
the detected surfaces is not the
same as the memorized
reference surface.
The current value for the
memorized surface is forcibly
set to 0. (The display is
common for channels 1 and 2.)

Changes to the

setting value

The setting value can be
configured around 0.
Individual setting values
cannot be changed.

The setting value can be
configured around 0.
Individual setting values
can be adjusted.

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.



Maximum sensitivity setting (operation modes: F-1, A-1, A-2)

1 Press and hold the [SET] button for at least three seconds without a

workpiece in place.

2 Release the [SET] button when "SEt" flashes on the display.

This concludes maximum sensitivity calibration and the sensor returns to the
detection state.

 Full auto calibration (operation modes: F-1, A-1, A-2)

This method performs calibration while the target is moving.

1 Press and hold the [SET] button for at

least three seconds while the target
workpiece is passing through the
detection area for the sensor.

The sensitivity is set according to the
detection value while the [SET] button is
pressed.

2 Release the [SET] button when "SEt"

flashes on the display.

This concludes calibration and the sensor
returns to the detection state.

Detection value

MAX

MIN

Setting
value

The value is set to the mean value
between the maximum and minimum
values detected while the [SET] button is
pressed down.

Time

During reference screen (DATUM) detection, the background is memorizes as
references. During the unstable situations noted above, a workpiece is judged
as present when the detected surface is different from the background.

This makes stable detection possible even when using workpieces with
unstable shapes.

The reference surface (DATUM) detection indicator lights up when using reference
surface detection after performing reference surface (DATUM) calibration.

DATUM

1

spot

DATUM

LASER

1

OUT

2

1

SET

2

BANK

TIM

CLP

series

 2-point area calibration (operation mode: F-2)

1 Place a workpiece on the upper limit

that you want the sensor to detect,
and press the [SET] button once.

That upper limit becomes the HIGH setting
value.

2 Place a workpiece on the lower limit

that you want the sensor to detect,
and press the [SET] button once.

That lower limit becomes the LOW setting
value.

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.

SEL

MODE

5

GV-IM-E

 1-point area calibration (operation mode: F-2)

HIGH setting value

LOW setting value

Set the values for the
upper and lower
distance.

Note

Note

Reference

Reference

Reference

Note

Reference

Note

Note

DATUM

DATUM

BANK BANK

SET

MODE

1
2

SET

MODE

1
2

MODE

Bank A is in use : Bank indicator is off Bank B is in use : Bank indicator is on

1 Press and hold the [SET] button

for at least three seconds with the
workpiece that you want to detect
in place.

2 Release the [SET] button when

"SEt" flashes on the display.

This concludes 1-point area calibration
and the sensor returns to the detection
state.

Configuring the sensitivity setting for reference
surface (DATUM) detection method

 Reference surface (DATUM) calibration (operation

mode: F-1, F-2)

This method memorizes the state without a workpiece (reference surface) and
use it to perform comparator output when the state differs from the reference
surface (when there is a workpiece).

1 Press the [SET] button once without

a workpiece in place.

2 Press and hold the [SET] button for at

least three seconds without the
workpiece in place.

Initial reset (initialization) and custom save function

 Initial reset (initialization)

Returns all of the settings to the factory defaults.

1 While pressing the [MODE] button, press the [SET] button five times.

2 Press the [Down] arrow button to display "rSt no".

When "rSt no" is displayed, pressing the [MODE] button returns to the
main screen without initializing.

3

Press the [Up] or [Down] arrow button to select "rSt ini", and then
press the [MODE] button to initialize.

 Custom save (Saving the settings)

Saves all of the settings. The saved settings can be loaded at a later time.

1 While pressing the [MODE] button, press the [SET] button five times.

2 Press the [Left] or [Right] arrow button to display "SAv".

3 Press the [Down] arrow button to display "SAv no".

When "SAv no" is displayed, pressing the [MODE] button returns to the
main screen without saving the settings.

4 Press the [Up] or [Down] arrow button to select "Sav YES", and then

press the [MODE] button to save the settings.

When performing reference surface calibration, the values are set for slightly above
and slightly below the reference surface. When the detection value falls within this
range, comparator output is turned off. When it falls outside of this range,
comparator output is turned on.

z Operations during F-1 mode

The setting value can be adjusted by using the [Up] and [Down] arrow buttons,
but the HIGH and LOW setting values cannot be adjusted individually.

z Operations during F-2 mode

The HIGH and LOW setting values can be adjusted individually by using the [Up]
and [Down] arrow buttons.

• Reference surface calibration cannot be used during the following
states. (Instead, 2-point calibration is performed.)

• The spot reflection indicator (1spot) is flashing on the sensor head or

sensor amplifier.

• The setting is control output 2.

• A mode other than F-1 mode or F-2 mode is being used.

• Reference surface calibration can only be set when the operation mode
is F-1 or F-2.

• When performing reference surface calibration, the current value is set
to 0.

 Clearing reference surface (DATUM) detection

method

When the reference surface (DATUM) detection indicator is lit, press and hold
the [Up] and [Down] arrow buttons for at least three seconds. The reference
surface (DATUM) detection indicator turns off and the sensor returns to
distance detection method.
The value is canceled if a form of calibration other than reference surface
calibration.

Other Settings

Performing custom save overwrites the settings from the previous custom
save.

 Custom reset (Loading the settings)

Loads the settings saved with custom save.

1 While pressing the [MODE] button, press the [SET] button five times.

2 Press the [Down] arrow button to display "rSt no".

When "rSt no" is displayed, pressing the [MODE] button returns to the

main screen without performing custom reset.

3 Press the [Up] or [Down] arrow button to select "rSt CSt", and then

press the [MODE] button to load the settings.

Performing custom reset erases the current settings.

Bank switching

The bank function allows two patterns of sensitivity settings to be saved in channels
1 and 2. (This is useful during operations such as switching the setup.)

•

The bank switching function can only be used when the external input is set to "bnk" in
the OPTIONAL settings.

•

Hold down the [MODE] button during main screen and press the [Up] arrow button to
switch banks, which allows the settings to be configured for each bank.

•

During the keylock state, the banks are switched with external input.

When the external input is off, bank A is used. When the external input is on,
bank B is used.

Zero point positioning

Sets the current value to zero (shift target value).

1 Press the [Up] and [Down] arrow buttons simultaneously without a

workpiece in place.

The current value becomes "0" and zero point positioning is complete.

When the shift target value is set, performing zero point positioning does not
make the current value "0". Instead, it becomes the set value for the shift
target value.
For more information about setting the shift target value, see page 9 of this
Instruction Manual.

Pressing the [Up] and [Down] arrow buttons simultaneously for at least

GV-IM-E

three seconds cancels the zero point (shift target value).

6

Note

Note

DATUM

SET

MODE

1
2

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

SET

1
2

SET

1
2

SET

1
2

End of basic settings

MODE

MODE

MODE

MODE

Setting range: 1.5/3/10/20/50
(Unit: ms)

Setting range: noo/nCo/noC/nCC

1

Response speed

2

Output mode

Setting range: ON/OFF

When

is selected

Press for about 3 seconds

Setting range: t-1oFF/oFd/ond/
Sht/ondoFd/ondSht

4

Clamp function

Setting range: F-1/F-2/A-1/A-2

3

Operation mode

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

SET

1
2

MODE

SET

1
2

MODE

SET

MODE

1
2

SET

MODE

1
2

SET

MODE

1
2

5

Delay timer 1 (Control output 1)

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

DATUM

End of optional settings

Setting range: Std/USr

7

Hysteresis

Setting range: oFF/SFt/bnK/tim

8

External input

Setting range: -199 to 999
(-198 to 998)

9

Shift target value

Setting range: nor/rEv

10

Distance display

Setting range: oFF/bAr/on

11

Eco display

Setting range: Varies depending
on the sensor head
model.

Hysteresis value

SET

MODE

1
2

Setting range: t-2oFF/oFd/ond/
Sht/ondoFd/ondSht

6

Delay timer 2 (Control output 2)

Setting range: 2 to 999 (Unit: ms)

Delay timer 1: Timer value T1

Delay timer 1: Timer value T2

Setting range: 2 to 999 (Unit: ms)

SET

MODE

1
2

Setting range: 2 to 999 (Unit: ms)

Delay timer 2: Timer value T1

SET

MODE

1
2

SET

MODE

1
2

SET

MODE

1
2

SET

MODE

1
2

SET

MODE

1
2

SET

MODE

1
2

SET

MODE

1
2

SET

MODE

1
2

Delay timer 2: Timer value T2

Setting range: 2 to 999 (Unit: ms)

SET

MODE

1
2

SET

MODE

1
2

SET

MODE

1
2

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

or

MODE

When

is selected

When

is selected

When

is selected

When

is selected

Reference

Keylock Function

The keylock function prevents accidental operation of the buttons during detection.
While using the keylock function, operations other than switching the display for the
main screen are prohibited.

The keylock settings can only be set in the main screen.

Setting/releasing keylock

While pressing the [MODE] button in the main
screen, press and hold the [UP] or [Down]
button for at least three seconds.
This sets (or releases) keylock and returns the
sensor to the main screen.

Interference protection function

The GV Series can prevent mutual interference that may occur when connecting
several expansion units.
The interference protection function only works when the following conditions are
met.

•

Interference protection functions on up to two adjacent units.

•

The main unit and expansion units use the same response speed.

•

The response speed is set to 1.5, 3, or 10.

Setting Each Type of Function

Press and hold the [MODE] button for at least three seconds in the main screen
(during detection) to change the settings.

The screen shown to the right is displayed
during keylock and basic settings cannot be
input.

SET

DATUM

1
2

During keylock

MODE

•

While configuring basic settings, pressing and holding the [MODE]
button for at least three seconds on any setting screen saves the
settings, ends basic setting, and displays the main screen.

• Press the [Left] arrow button to return to the previous setting item.

7

GV-IM-E

 1. Response speed setting

Reference

On-delay

Time

Setting value

Display

On-delay/

Off-delay

On-delay/

One-shot

Off-delay

One-shot

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

t1

t1

t1 t1

t1

t1 t1 t1

t2

t2

t2

t1

t1

t2

t1t1t1

t1: Timer value T1
t2: Timer value T2

Reference

Note

Reference

The response speed is the time from when the sensor head starts detection
until the value at the detection position is established as a comparator value.

Item Setting range Default value

Response
speed

* "20" for GV-H1000 (L) only.

1.5/3/10/20/50 (Unit: ms)

*

10

 2. Output mode setting

Sets the control output mode for each control output.

Item Description Default value

Settings

Output mode noo

N.O. (normal open) and N.C. (normal close) operate in the following
manner.

noo N.O. N.O.

N.O. (normal open) ON
N.C. (normal close) OFF

Control
output 1

nCo N.C. N.O.
noC N.O. N.C.
nCC N.C. N.C.

Output mode During detection

Control
output 2

 3. Operation mode selection

Sets the operation mode.

Operation mode Description Default value

F-1 General Normal detection mode

F-2
A-1 Edge hold mode
A-2 Surface detection mode

Area detection mode

Special

{

 4. Clamp function setting

Set the operations when distance detection cannot be performed (such as
when the detection object does not enter the detection range, or when there is
insufficient light intensity).

Setting item Description Default value

on

oFF

Outputs the comparator output with the
detection value obtained immediately before
the distance was judged to be not detectable.
The current value display and LED bar
display are also saved for the immediately
preceding value.
If distance detection can be performed, then
the hold is released.

When the distance detection cannot be
performed and "---" is displayed, the
comparator output operates in the same way
as if a detection object appears at the
farthest point of the detection range.

 5. (6.) Delay timer setting

Individual delay timers can be set for channels 1 and 2.

Setting item Description Default value

oFF Delay timer is not used

ond On-delay
oFd Off-delay
Sht One-shot
ondoFd On-delay/off-delay
ondSht On-delay/one-shot

{

{

 7. Hysteresis setting

Sets the hysteresis for judgment with control outputs 1 and 2.

Setting item Description Default value

Std Run with the default values.

Usr Set custom values.

The hysteresis setting range and default value are as follows when "Usr" is
selected.

Head model Setting range Default value

GV-H45 (L) 0, 1 to 100 2
GV-H130 (L) 0, 2 to 100 4
GV-H450 (L) 0, 0.5, 1 to 100 0.5
GV-H1000 (L) 0, 1 to 100 5

 8. External input function setting

Sets the function assigned to the external input (pink line).

Setting item Description Default value

oFF Do not use external input (input off).

SFt Used as "External shift input".
bnK Used as "Bank switching input".
tim Used as "Timing input".

The minimum external input time is 20 ms.

z External shift input

When external input is input, the current value is shifted by the value set for shift
target value.

(For information about the shift target value, see "9. Shift target value setting".)

z Bank switching input

When keylock is set for the amplifier, the bank switches with input to the external
input.

(For more information about bank switching, see "Bank switching".)

When edge hold mode (A-1 mode) is set, switching banks with the external
input resets the current value to 0.

z Timing input

Comparator output is only output over control output 1 when external input is
on.
The timing input indicator on the sensor amplifier lights up.

Control output 2 continues to output comparator output, regardless of
whether timing input is on or off.

{

{

GV-IM-E

8

 9. Setting the shift target value

Reference

1
2

1
2

1
2

5-40 V DC

10-30 V DC

Load

Black/white (control output 1/2)

Brown *

Blue *

Sensor main circuit

Overcurrent protection circuit

0 V

10-30 V DC

Load

Black/white (control output 1/2)

Brown *

Blue *

Sensor main circuit

Overcurrent protection circuit

PLC etc.

Purple/pink (input)

Sensor main circuit

Brown *

10-30 V DC

Set this value to shift the current value by another amount.

Item Setting range Default value

Shift target
value

• Press the [Up] and [Down] arrow buttons simultaneously to shift the current

-199 to 999 0

value to the set value with the shift target value.
The shift status is retained even if the power is turned off.

Press the [Up] and [Down] arrow buttons simultaneously and

hold them to clear the shifted target value.

• The amplifier does not retain the amount of shift when shifting with external

input. (It is cleared when the power is turned off.) To retain the amount of
shift, press the [Up] and [Down] arrow buttons simultaneously and perform
shift.

•

When performing reference surface calibration while edge hold mode (A-1
mode) is set, the value is always shifted to 0.

• Shift is only a effective on the selected bank.

 10. Distance display setting

Sets whether to use the side close to the sensor head as the positive direction
(normal) or negative direction (reverse).

Setting item Description Default value

nor (Normal)

rEv (Reverse)

The display value increases as the target
comes closer to the sensor head.

The display value decreases as the target
comes closer to the sensor head.

 11. Eco display setting

Set this parameter to reduce the consumption current or to stop displaying
specific values. When running in power saving (eco) mode, pressing any button
returns the sensor to normal operations.
The main screen switches to eco mode if no operations take place for 30
seconds.

Setting item Description Default value

oFF Turns off the eco display.

bAr Turns off the digital display.

on

The digital display (green) flashes in
sequence. Bar display and channel No.
indicators are turned off.

{

{

Troubleshooting

Problem Cause and solutions

The current value is
larger than the setting
value, but the output is
not reversed.

The external input does
not function.

The current settings can
no longer be
determined. The user
wants to return the unit
to the factory defaults.

This type of problem sometimes occurs when multiple
reflection occurs while using the distance detecting
method. If this problem occurs, use the reference
surface detection (DATUM) method and configure the
sensitivity setting.
If multiple reflection occurs, the spot reflection (1spot)
indicator turns off.

• "Distance detection method (Normal)" (page 4)

• "Reference surface detection (DATUM) method

(Application)" (page 5)

• "Sensor amplifier part names" (page 3)

Check the settings for the external input.

• "8. External input function setting" (page 8)

Perform initial reset (initialization).

• "Initial reset (initialization) and custom save function"

(page 6)

I/O Circuit Diagram

Output circuit

GV-21/22 (NPN output)

* GV-21 only

GV-21P/22P (PNP output)

Error Displays and Corrective Actions

Error indication Error contents Remedy

• Check that the sensor head is

connected.

• Check that the head cable is not

broken.

• Check the connection of the

head cable to the connector.

• After checking these points, turn

on the power again.

• Check the load and reduce the

current to be within the rated
range.

•

Check that the output wire does not
touch another wire or a frame.

If you need to write more data,
replace the amplifier unit.

Set a workpiece or background in
the distance for detection from the
sensor.

Set a workpiece or background in
the distance for detection from the
sensor.

Tilt the sensor head so that specular
reflection does not enter the sensor.

Head error

Overcurrent error

EEPROM error

1
2

1
2

1
2

Sensor head is not
connected.
Head cable is broken.
Sensor head is
damaged

Overcurrent is flowing
through the output wire

Data read/write error Perform initialization.
Data has been written in

the EEPROM over 1
million times and can no
longer be updated.

There is no workpiece
or background within
the detection distance
range, or no light is
entering the receiver.

Reading exceeds the
detection distance
range.

Light intensity is
saturated.

* GV-21P only

Power is supplied to the expansion unit GV-22(P) from the expansion connector on
the back of the main unit GV-21(P). The power wires (brown and blue) of the main
unit and those of the expansion unit are common inside through the connector.

Input circuit

GV-21/22 (NPN output)

5 V DC

Purple/pink (input)

PLC etc.

(Short-circuit current 1 mA max.)

Sensor main circuit

Blue *

0 V

* GV-21 only

GV-21P/22P (PNP output)

* GV-21P only

Purple line. . . . . . . Laser emission stop input

Pink line . . . . . . . . External input function

* The external input function can be set to one of the following.

•

Not used

•

Shift input

•

Bank switching input

•

Timing input

*

9

GV-IM-E

Specifications

Environmental resistance

Surrounding light

Material

 Sensor head

Model

Light source

FDA
(CDRH)
Part

1040.10

IEC
60825-1

Detection distance
(Amplifier display

value
Amplifier

display range

Standard
detection
deviation

Spot diameter

Operation
status
indicators

Cable length 2 m 3 m

Weight

*1 Guideline of the amplifier display value when the distance display for the

*2 For GV-H1000, when the response speed is set to 10 ms or less,

*3 For GV-H1000L, when the response speed is set to 10 ms or less,

*4 Including the connector cable.
*5 The laser classification for FDA(CDRH) is implemented based on

 Sensor amplifier

Model

Amplifier type Main unit Expansion unit

Power voltage

Power consumption

Response time 1.5/3/10/20/50 ms

Control output

Control input

Environmental
resistance

Material

Weight

*1 11 to 30 VDC when amplifiers are extended.
*2 Including the cable (2 m).

GV-IM-E

Item Specifications

*1

)

Enclosure
rating

Surrounding air
temperature

Relative
humidity

Incandescent
lamp

Sunlight

Vibrati on

Housing

Lens cover Glass
Cable PVC

*4

detection distance is set to "nor".

Incandescent lamp: 5,000 lx, Sunlight: 3,000 lx

Incandescent lamp: 2,500 lx, Sunlight: 1,500 lx

IEC60825-1 in accordance with the requirements of Laser Notice No.50.

GV-

GV-

GV-

GV-

GV-

H45

H45L

H130

H130L

Short-range Mid-range Long-range

Visible semiconductor laser
Wavelength: 655 nm

Laser
Class

Output

Laser
Class

Output

Class

Class

560μW 220μW 560μW 220μW 560μW 220μW 560μW 220μW

Class 2Class 1Class 2Class 1Class 2Class 1Class 2Class 1

560μW 220μW 560μW 220μW 560μW 220μW 560μW 220μW

20 to 45 mm
(250 to 0)

259 to -34 768 to -98 295 to -50 810 to -175

0.5 mm 1 mm 3 mm

Approx. φ0.1 mm
(Detection distance
45 mm)

Control output: Red LED
Laser radiation emission indicator: Green LED
Other: Green LED

IP67

-10 to +50°C (No freezing)

35 to 85% RH (No condensation)

10,000
lx

20,000lx10,000lx20,000lx10,000lx10,000

10 to 55 Hz,

1.5 mm double amplitude in the X, Y, and Z directions,
2 hours respectively

Housing material: PBT Packing: NBR
Display: Polyarylate
Metal part: SUS304

Approx. 120 g Approx. 130 g Approx. 190 g Approx. 210 g

1

5,000
lx

*5

Class

Class

55 to 130 mm
(750 to 0)

Approx. φ0.3 mm
(Detection distance
130 mm)

10,000
lx

1

5,000
l x

*5

GV-

H450

H450L

Class

Class

160 to 450 mm
(290 to 0)

Approx. φ0.8 mm
(Detection distance
450 mm)

5,000lx2,500

lx

1

lx

5,000
lx

*5

GV-

H1000

H1000L

Super-Long-

range

Class

Class

200 to 1000 mm
(800 to 0)

20 mm (Detection
distance 200 to
800 mm),
30 mm (Detection
distance 800 to
1000 mm)

Approx. φ1.8 mm
(Detection distance
1000 mm)

*2

5,000

2,500

lx

lx

*2

10,000

5,000

lx

lx

Item Specifications

NPN output GV-21 GV-22
PNP output GV-21P GV-22P

*1

Surrounding air
temperature

Relative
humidity

Vibrati on

*2

10-30 VDC, Ripple (P-P): 10% max, Class 2

Normal: 2200 mW max. (at 30 V: 73.3 mA max.)
Eco-bar: 1700 mW max. (at 30 V: 56.7 mA max.)
Eco-all: 1600 mW max. (at 30 V: 53.3 mA max.)

NPN (PNP) open collector x 2ch, 40 V (30 V) DC max.
Max. 100 mA, residual voltage 1 V max.

Purple line .... Laser emission stop input

Pink line ....... Setting value bank switching input/

-10 to +55°C (No freezing)

35 to 85% RH (No condensation)

10 to 55 Hz, 1.5 mm double amplitude in the X, Y,
and Z directions, 2 hours respectively

Housing material, front sheet: Polycarbonate
Key top: Polyacetal
Cable: PVC

Approx. 110 g

shift input/timing input (selected with
the settings)

GV-

1

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workmanship for a period of one (1) year from the date of shipment. If any
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for inspection and examination. Upon examination by KEYENCE,

*5

*3

*

3

10

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E 1101-3

Copyright (c) 2011 KEYENCE CORPORATION. All rights reserved.

11664E 1043-3 96M11664 Printed in Japan