Keyence CZ User Manual

142-001

WARNING

RGB Digital Fiberoptic Sensors

SAFETY PRECAUTIONS

This manual describes the instructions, operating procedures and
precautions for using the CZ Series.
Before beginning operation, please read this manual carefully to get the
most from your CZ Series.
Keep this manual handy for future reference.

CZ Series

Instruction Manual

• The CZ Series is intended for the detection of target objects. Do
not use the CZ Series in a safety circuit to protect the human
body.

• The CZ Series does not have an explosion-proof structure. Do
not use it in a location where any flammable gases, liquid or
powder exist.

ACCESSORIES

Instruction manual (This manual): 1

Quick reference: 1
* Attach this sticker close to the

CZ-V1 unit.

[In C/C+I mode]

CZ-V1 Quick Reference

Mode

UP/DOWN

Button Names Display Switching

DIP switch

ON

SET button

Sensitivity Setting

• 1-point calibration (DIP switch 3: OFF)

With a target in place, .

• 2-point calibration (DIP switch 3: ON)

With a target in place,
with the target removed, .

button
[Fine sensitivity

adjustment]

CH

1234

S

[

Sensitivity setting]

MODE

Using button

S

S

S

button
[Calling

preset value]

SET

, and

M

S

[ : Briefly press the button.]

Using button

Matching rate display Preset value display

CH

M

Fine sensitivity adjustment

Press

CH CH

PressPrecise Rough

Error display

CH

Received light intensity is too low.

CH

Received light intensity is too high.

In I mode, button operation is the same as that

*

of the FS-V1.

M

CH

Mounting bracket: 1

Resin driver: 1

SPECIFICATIONS

Amplifier Fiber unit

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1. When several units are connected, the acceptable ambient temperature varies
depending on the conditions given below. To connect several units, be sure to
mount them to a DIN rail (metallic plate). Ensure that the output current is 20
mA max.

• When 3 to 10 units are connected: -10 to +50°C

• When 11 to 16 units are connected: -10 to +45°C

1

CONNECTING FIBER UNIT AND AMPLIFIER

1. Tilt the quick-release lever.

2. Push the single-core fiber to the transmitter side, and the multiple­core fiber to the receiver side as far as they will go (Approx. 14 mm of
the fiber will be inserted.).

* Inserting the fiber in the wrong side will decrease the original

detection performance. Be sure to check the markings on the
amplifier’s lateral side before inserting the fiber.

3. Raise the quick-release lever.

1

3

DETACHING EXPANSION UNITS FROM DIN RAIL

1. Detach the end units.

2. Slide the expansion unit that is to be detached. Detach it individually
from the DIN rail.

Note 1: When connecting several amplifiers, be sure to use a DIN rail
and the end units.
Note 2: Be sure to turn the power off before connecting/disconnecting
amplifiers.
Note 3: Do not remove the protective cover on the expansion connector
from the outermost unit.
Note 4: Do not detach several units from the DIN rail while they are
connected to each other.
Note 5: When several units are connected, confirm that the ambient
temperature is appropriate. (See “Specifications” on page 1.)

Quick-release lever

Single-core fiber
(with markings)

2

Multiple-core fiber

Single-core
(Transmitter side)

Transmitter side
(with markings)

Receiver side

Multiple-core
(Receiver side)

MOUNTING AMPLIFIER

■Mounting/detaching amplifier to/from DIN rail or

mounting bracket

Hook the claw on the rear side of the amplifier onto the DIN rail or the
mounting bracket, and then hook the front side claw to the rail or
bracket while pressing the amplifier forward. To detach the amplifier,
unhook the front claw by lifting the amplifier front side while pressing it
forward.

Mounting

Detaching

■ Side mounting

Using the side holes of the supplied
mounting bracket, secure the amplifier
with the screws.

CONNECTING SEVERAL AMPLIFIERS

■ Mounting expansion units

Up to 16 expansion units (FS-T2, FS-M2, FS-V12, PS-T2) can be
mounted to the side of the CZ-V1 amplifier.

1. Remove the protective cover on the
side of the amplifier.

2. Mount expansion units to the DIN rail
one at a time.

3. Slide one expansion unit toward the main unit or another unit. Align
the front claws of the units and push them together until you hear a
click.

4. Secure the units together by pushing the end units (included in the
expansion unit) from both sides.

Align the claw.

Main unit

Expansion
units

Up to 16 expansion units can be connected.

The sticker on the right is
included with the expansion
unit. Attach the sticker
close to the sensor units.

Remove the
protective cover.

End unit (included with
the expansion unit)

MOUNTING FIBER UNIT

• Use the supplied special mounting bracket to mount the fiber unit in
the desired position according to the location.

• Be sure to limit the tightening torque to 0.3 Nm or less.
Mounting example 1 Mounting example 2

Reference: To cut the fiber to the desired length, use the special cutter
included with the fiber unit.

INPUT/OUTPUT CIRCUIT

Connections

Output circuit

Input circuit

2

Photoelectric sensor

main circuit

External calibration input
External synchronization input
External bank selection input 1 to 3

main circuit

Photoelectric sensor

Short-circuit current: Approx. 1 mA

Orange/purple

Overcurrent

protection

+5 V

Brown
Black

Pink
Purple

Yellow/purple
Green/purple

Blue

-5 V

100 mA max.

Load

Brown
Black

Load

100 mA max.

Blue

Pink
Purple
Orange/purple
Yellow/purple
Green/purple

Blue

12 to 24 VDC
5 to 40 VDC

External calibration
External synchronization

input
External bank selection 1

External bank selection 2
External bankselection 3

0 V

12 to 24
VDC

5 to 40
VDC

0 V

PLC, etc.

0 V

PART NAMES

DIP switches for mode setting

HSPD

2-P

C+I C

I

FINE
1-P

High-speed/High-precision
2-point/1-point calibration

Differentiation mode
selection

UP/DOWN key

• Changes sensitivity setting value.

• Changes channels.

LCD display monitor

1234

OUT

SET

DLY.

TIM

OFF

Output indicator

External synchronization
input indicator

Timer selection switch

Switches between Timer
OFF and 40 ms OFF-delay.

SETTING EACH MODE

DIP switch

MODE

1234

OUT

TIM

DLY.

Timer selection switch

Factory setting

“❋” indicates the factory-set mode. Normally, you should use the CZ­V1 with the setting indicated by “❋”, and only change the setting if
required.

■Differentiation mode setting (Using DIP switches 1 and 2)

Change the setting according to the detection conditions such as the
target color or received light intensity.

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Sensitivity setting in C or C + I mode ➞ Go to page 4.
Sensitivity setting in I mode ➞ Go to page 5.

2

1

2
1

2
1

2
1

CH

SET

OFF

N.C

SET

N.O

Output selection switch

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MODE

MODE selection button

CH

SET

• Changes display.

• Shows matching rate.

• Shows setting value.

SET button

N.C

N.O

Sets sensitivity.

Output selection switch

Switches between N.O. and N.C.

Calibration indicator

■FINE/HSPD selection (Using DIP switch 4)

Use HSPD when the detection requires a response speed less than 1
ms.

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■ N.O./N.C. selection

Change the setting to invert the output mode.

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■ Timer OFF/40 ms OFF-delay selection

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.roloc

Change the setting to delay the output timing.

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■1-point/2-point calibration selection1. (Using DIP switch 3)

Change the calibration method.

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1. The setting of DIP switch 3 is effective only in the C and C + I modes.
The setting is unnecessary in I mode.

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3

OPERATING PROCEDURE FOR USING C OR C + I MODE

Setting sensitivity

■ 1-point calibration (Detection of one specified color)

Place a target that is the reference color in the detection area of the
fiber unit. Press the SET button and then release it.

The calibration indicator illuminates momentarily and the reference
color is saved.

CH

OUT

TIM

SET

OFF

DLY.

N.C

Calibration indicator

● To ignore certain color differences

There are two methods for ignoring color differences.

• Perform the sensitivity adjustment after calibration. (➞ See the lower
right part of page 4.)

• Use the quick color difference cancellation function.
In 1-point calibration, hold down the SET button and continue the
calibration with targets of different colors. The CZ Series ignores the
color variation and saves them as the reference color.

CH

OUT

SET

TIM

OFF

DLY.

Calibration indicator
(Illuminates while the
SET button is held down.)

N.C

MODE

SET

N.O

Press this
button once.

MODE

SET

N.O

Hold down the
SET button.

● When calibration/differentiation fails

Check the following points.

• Check whether the fiber unit is mounted properly (detection
distance and detection angle). (See page 7.)

• Perform the sensitivity adjustment. (See below.)

• Select the other differentiation mode and then perform calibration

again. (See page 3.)

LCD display indication

Current value

(Matching rate display)

Channel

CH

Indicates the channel of
the amplifier currently
being monitored.

▲

Mode

“C” indicates that the current
mode is C or C + I. Nothing
appears while in I mode.

▲

CH

When “

nnnnnn

nnn” or “

nnnnnn

Setting value

The setting value
flashes on and off.

VVVVVV

VVV” is displayed

VVVVVV

These displays indicate that the received light is insufficient or
excessive. ➞ See page 7.

● Matching rate display

Displays the matching
degree (matching rate) of
the color of the currently
detected target to the
reference color registered
during calibration.

* Displays a value between 0

and 999. (Higher value
indicates a better match.)

MODE

Press the button once.

● Setting value display

Displays the threshold
value (criteria) of the
matching rate.

■ 2-point calibration (Differentiation of two colors)

1. Place a target that is the reference color in the detection area of the
fiber unit. Press the SET button and then release it.

The calibration indicator illuminates and the reference color is
saved.

MODE

CH

1234

OUT

SET

TIM

OFF

DLY.

N.C

Calibration indicator

2. Place a target that is the color to be differentiated in the detection
area. Press the SET button and then release it.

The calibration indicator goes off. The CZ Series sets the optimal
sensitivity to differentiate the two colors.

CH

OUT

SET

TIM

OFF

DLY.

Calibration indicator

N.C

SET

N.O

Press the
SET button
once.

MODE

SET

N.O

Press the
SET button
once.

Sensitivity adjustment

The tolerance of the detection can be adjusted.

1. Press the MODE button to show the setting value.

MODE

CH

SET

OFF

N.C

2. Press the UP/DOWN button to change the setting value.

CH

A higher value means
precise detection.

Narrow tolerance range

* After the adjustment, press the MODE button to return to the

matching rate display.

SET

N.O

Press

CH

A lower value means

Press

rough detection.

Wide tolerance range

● When “- - -” is displayed:

When the sensitivity difference is insufficient for proper detection, the
LCD display monitor shows “- - -” for 3 seconds after calibration.
In this case, see “When calibration/differentiation fails” on the upper
right part of this page and try the calibration again.

4

OPERATING PROCEDURE FOR USING I MODE

Setting sensitivity

Select the sensitivity setting procedure according to the target condi­tions.

■To set sensitivity using a moving target (Fully-automatic

calibration)

1. Pass a target through the optical
axis while pressing the SET
button (3 seconds or more).

2. Confirm that the calibration
indicator (orange LED) flashes.

3. Release the SET button. The
calibration indicator (orange
LED) goes off.

1234

OUT

SET

TIM

OFF

DLY.

Calibration
indicator

CH

N.C

Press the button
for 3 seconds or
more.

MODE

SET

N.O

LCD display indication

The display is factory-set to show the received light intensity.

Received light
intensity (4 digits)

CH

MODE

Press this
button once.

Channel display:

Indicates the
channel of the
amplifier currently
being monitored.

MODE

Hold this button down
for 3 seconds or more.

Setting value (4 digits)

CH

Excess gain (%)

CH

MODE

Press this button
once.

* The setting value flashes on and off.

■Excess gain display

Received light intensity is converted by
defining the setting value as 100P (%).

CH

■To detect a minute color difference (2-point calibration)

1. With a target in place, press the
SET button and release it. The
calibration indicator (orange
LED) illuminates.

2. With the target removed, press
the SET button and release it.
The calibration indicator (orange
LED) goes off.

OUT

TIM

DLY.

Calibration
indicator

1234

SET

OFF

CH

N.C

1. Press and release
the button with a
target in place.

2. Press and release
the button without
the target.

MODE

SET

N.O

■For target positioning (Positioning calibration)

1. With no target, press the SET
button and release it.
The calibration indicator (orange
LED) illuminates.

2. Place a target in the position
where it is to be stopped.

3. Press the SET button for 3
seconds or more and confirm
that the calibration indicator
(orange LED) flashes.

4. Release the SET button.

1234

OUT

TIM

DLY.

Calibration
indicator

CH

SET

OFF

N.C

Press the button
and release it.

MODE

SET

N.O

■For stable detection unaffected by dust or dirt (Maximum
sensitivity setting)

1. Under the conditions shown in
the figure, press the SET button
for 3 seconds or more until the
calibration indicator (orange
LED) flashes.

With no target

2. Release the SET button.

1234

OUT

SET

TIM

OFF

DLY.

Calibration
indicator

CH

N.C

MODE

SET

N.O

Press the button
for 3 seconds or
more.

• Stable LIGHT status is obtained with 110P (%) or more.

• Stable DARK status is obtained with 90P (%) or less.

This display enables sensitivity adjustment using the UP/DOWN button.

■Received light intensity display

Received light intensity is displayed in 4
digit numbers by defining the maximum
value as approximately 4000.

The maximum/minimum values vary depending on the fiber unit
characteristics.

CH

■Setting value display

The current setting value is displayed.
This display enables sensitivity
adjustment using the UP/DOWN button.

CH

Changing the setting value

You can change the setting value in the “Setting value display” and
“Excess gain display” modes.

In setting value display mode

MODE

increases the sensitivity.

SET

(The setting value is

MODE

decreases the sensitivity.

SET

In excess gain display mode

MODE

increases the sensitivity.

SET

MODE

decreases the sensitivity.

SET

decreased.)

(The setting value is
increased.)

(The excess gain is
increased.)

● When the sensitivity difference is insufficient:

“- - - - -” flashes for 3 seconds on the LCD display monitor after
calibration.

CH

(The excess gain is
decreased.)

Reference: Holding down the UP/DOWN button quickly changes
displayed values.

5

OTHER FUNCTIONS (COMMON TO C, C + I, AND I MODES)

+V

0V

Brown

Blue

Orange/purple

Yellow/purple
Green/purple

Locking the sensitivity setting

* Be sure to hold down the MODE button first when operating the

MODE and UP/DOWN buttons.

● Selecting registered colors (banks) using an external input

The external bank selection cable allows the selection of 8 registered
colors from A through H.

Blown

Hold down the MODE button and press the UP button for 3 seconds.
This locks the operation buttons.

•“Loc” flashes on and off on the LCD display monitor.

• You can still change the display mode and channel when in setting

locked status.

MODE

CH

DRY.

OUT

1234

TIM

SET

2 1

OFF

N.C

SET

➞

N.O

● To cancel the locked status

Repeat the procedure above while in setting
locked status. “UnL” flashes on and off on
the LCD display monitor.

Setting sensitivity using an external input
(External calibration function)

1. Lock the sensitivity setting using the
procedure above. (If “UnL” is displayed,
repeat the same procedure.)

2. Connect the pink cable to a switch or a PLC.
The minimum input time is 20 ms.

NPN

Brown

Blue

+V

0 V

Blue

Orange/purple
Yellow/purple

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rolocelbaC

knaB

A XXX
B
C X
D
E XX
F
G X
H

elprup

●

●●

●

●●●

/wolleY

elprup

XX

●

X

●●

/neerG

elprup

X
X

●

●

Green/purple

●:
X:

■Controlling expansion units (FS-T2, FS-V12, PS-T2)

1. When “CH” is displayed, hold down the MODE button and momentar-
ily press the UP/DOWN button. You can change the channel of the
amplifier being controlled. Select the channel of the desired expan­sion unit.

• The number of channels varies depending on the connected
expansion units. Up to 16 expansion units can be connected.

• The channel number starts at 2, which is the number of the expan­sion unit next to the main unit, and it increases to 3 through to 17.

CH

MODE

+

3. The external calibration procedure is the same as using the SET

Pink

button. (➞ All the setting procedures on pages 4 and 5 are available
with the external input.)

Selecting CH display

The CZ-V1 can internally store 8 colors (banks). The banks can be
selected using the buttons or an external input.

● Selecting registered colors (banks) using the buttons

1. Hold down the MODE button*
and press the DOWN button for 3
seconds.
“CH” appears and flashes on the
LCD display.

DRY.

OUT

TIM

2. Hold down the MODE button*
and momentarily press the UP/
DOWN button. The banks are
changed each time the UP/
DOWN button is pressed.
There are 8 banks from A
through H.

MODE

+

MODE

+

DRY.

OUT

1234

TIM

3. To finish the selection, hold down the MODE button and press the
DOWN button for 3 seconds.
“CH” stops flashing and remains illuminated.

MODE

SET

1

N.O

➞

DRY.

OUT

1234

SET

TIM

OFF

CH

N.C

2

1234

SET

OFF

SET

OFF

CH

CH

N.O

N.C

2

CH

N.O

N.C

2

MODE

SET

MODE

SET

Channel

Main unit Expansion unit

MODE

+

CH2 CH3 CH4 CH17

Channel number

CH

indication

1

1-line expansion units

2. You can use the CZ-V1 to operate the selected expansion unit, for
example to change the monitor display or sensitivity setting.

* The red and green color of the LCD display represents the ON/OFF

condition of the selected expansion unit.

1

Note 1:The FS-M2 cannot be controlled using the CZ-V1.
Note 2: When the channel of the FS-M2 is selected, “- - - -” appears on

the LCD display. (The red or green color of the LCD display represents
the ON/OFF condition of the FS-M2.)

■External synchronization function

When the external synchronization input cable (purple) receives a
signal (connected to 0 V), the control output retains the condition at that
exact moment.

Detection
condition

External
synchronization
input

Control output

6

Match

Mismatch

ON

OFF

ON

OFF

This output
condition is
retained.

This output condition
is retained.

HINTS ON CORRECT USE

Mounting amplifier

• If the amplifier cable is placed together with power lines or high
voltage lines in the same conduit, detection errors may occur due to
noise interference. Isolate the amplifier cable from these lines.

• If there are several colors in a single beam spot, the CZ-V1 deter­mines the color by averaging those colors. Therefore, it may produce
an output even though the color is different from the registered color.

• To extend the cable length, use a cable with at least a 0.3 mm
nominal cross-section area. Limit the length of cable extension to
100 m or less. (To connect several units, contact Keyence for further
information.)

• When using a commercially available switching regulator, ground the
frame ground terminal and ground terminal.

• Do not use the CZ-V1 outdoors.

• Even when the same color is detected, the displayed value may vary

depending on the characteristics of each amplifier, the length of the
fiber cable and the location.

• When any of the external inputs (calibration, synchronization or bank
selection) are not used, cut the appropriate input cables (pink, purple,
orange/purple, yellow/purple or green/purple) at the root or connect
them to the “+” terminal of the power supply.

Mounting fiber unit

• A detection error may occur when the target is subjected to direct or
reflected light from high-frequency lighting equipment such as an
inverter fluorescent lamp. In such a case, apply a light shield plate or
change the location of the fiber unit.

Inverter fluorescent lamp, etc.

Light shield
plate

2

• Target movement and fiber unit orientation

To stabilize the sensor output at a border, mount the fiber unit parallel to
the border line as much as possible.

Incorrect

Target movement
direction

Correct

Target movement
direction

Fiber unit

• Prevent any objects from bumping the sensing surface.

• Do not pull the fiber cable using a strength greater than 0.3 N.

ERROR INDICATIONS

The following indications on the LCD display show the error events.
Correct the problem using the following countermeasures.

rorrE

noitacidni

nnn

vvv

----

esuaCserusaemretnuoC

thgildevieceR

siytisnetni

.tneiciffusni

thgildevieceR

siytisnetni

.evissecxe

ni(ecnereffidroloC

➞ /noitarbilacnehW“eeS

ecnereffid“,edomI

si)”ytisnetnithgilni

otllamsoot

srolocetaitnereffid

tniop-2gnirud

.noitarbilac

sitinurebifehtrehtehwkcehC

gnitceteddeificepsehttadellatsni

.xorppa(oglliwtisarafsatinurebif

.)mm41

51ot01.xorppaybtinurebifehttliT

(.seerged ➞ ”tinurebifgnitnuoM“eeS

).egapsihtfotraptfelehtno

dna4egapno”sliafnoitaitnereffid

.tnemtsujdaytivitisnesehtyrter

ehtotnielbacrebifehttresnI.ecnatsid

• When detecting a metal surface or glossy target

When a target has a metal or glossy surface, the calibration/differentia­tion may fail. To detect such a target, tilt the fiber unit by approximately
10 to 15 degrees.

10° to 15°

7

DIMENSIONS

CZ-V1

When mounted to DIN rail

Brown, blue, Black, Pink,
Purple: 0.45 mm

ø5.2 x

Orange/purple, green/purple,
yellow/purple: 0.25 mm

Cable length: 2 m

2

2

When mounting bracket is attached

1.1

CZ-40

10.7

24

78

5.8

36.5

16

5

11.6

1518.5

24 min.

2 - ø3.2

8

Amplifier mounting bracket (accessory)

15

28.5

2 - (4.4 x 3.4)

Stainless steel

6.7

6.5

8.4

35.4

53.5

24 min.

(12.7)

22

CZ-41

Slot (Note)

ø3.3

(Mounting hole)

25.5

13

11.814

28

200033

(Free-cut)

ø2.2 x 2

2 - ø3.3

(Mounting hole)

27

28.5

13

17.5 11.5
32

37 2000

(Free-cut)

ø3.3 x 2

0.5 11.5
(Note) Detail of slot

Fiber unit mounting bracket
(accessory)

Detail of slot

3.5

5

14.5

3.6

3.6

9.5

8

11.518

11.5

18.7

4

3.5

33

t = 1.2

Stainless steel

6

2 x M3 screw

17.5

11.5

t = 1.5

(32)

When mounting bracket is
attached to CZ-40

45

The fiber unit angle can be changed
by a maximum of 45 degrees upward
and downward.

8

Worldwide Headquarters
KEYENCE CORPORATION

1-3-14, Higashi-Nakajima, Higashi-Yodogawa-ku,
Osaka, 533-8555, Japan
PHONE: [phone] FAX: [phone]

KEYENCE CORPORATION OF AMERICA

PHONE: [phone] FAX: [phone]

KEYENCE (UK) LIMITED

PHONE: [phone] FAX: [phone]

KEYENCE DEUTSCHLAND GmbH

PHONE: [phone] FAX: [phone]

KEYENCE FRANCE S.A.

PHONE: [phone] FAX: [phone]

KEYENCE SINGAPORE PTE LTD

PHONE: [phone] FAX: [phone]

KEYENCE (MALAYSIA) SDN BHD

PHONE: [phone] FAX: [phone]

KEYENCE (THAILAND) CO., LTD

PHONE: [phone] FAX: [phone]

KEYENCE KOREA CORPORATION

PHONE: [phone] FAX: [phone]

© KEYENCE CORPORATION, 1998

Specifications are subject to change without notice.

CZ-IM-1-1298 Printed in Japan