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PRECAUTIONS FOR CORRECT USE

Please observe the following precautions for safe use of the product:
1.  Do not use the product in environments where it can be exposed to 

inflammable/explosive gas.

2.  Do not disassemble, repair or modify this product.
3.  Be sure to make sure that locking mechanisms are locked before use.
4.  The supply voltage must be within the rated range.
5.  Use the power supply within the rated load.
6.  Dispose of this product as industrial waste.

PRECAUTIONS FOR SAFE USE

INSTRUCTION SHEET

Thank you for selecting OMRON product. This sheet primarily describes 
precautions required in installing and operating the product.
Before operating the product, read the sheet thoroughly to acquire 
sufficient knowledge of the product. For your convenience, keep the 
sheet at your disposal.

© OMRON Corporation  

2016

  All Rights Reserved.

                                                               

Model

 

ZG2-WDC

□□

Smart Sensor
Sensor Controller 
for ZG2-WDS

□□□

(1)  Power supply

This connects the 24 V DC (

±

10%) power supply. When using a Sensor 

Controller with a PNP output, the power supply terminal is also the common I/O 

terminal for all I/O except for the Analog output.

  Supply power from a DC power supply unit that has a countermeasure (safety 

ultra-low voltage circuit) built-in for preventing high voltages from occurring.

  Wire the power supply separately from other devices. Wiring them together 

or placing them in the same duct may cause induction, resulting in 

malfunction or damage.

(2) GND

The GND terminal is the 0V power supply terminal. When using a Sensor 

Controller with an NPN output, the GND terminal is also the common I/O 

terminal for all I/O except for the Analog output.

(3)  OUT0 (ALL PASS output)

This outputs judgment results (ALL PASS).

(4)  OUT1 (NG output)

This outputs judgment results (NG).

(5)  OUT2 (ERROR output)

This turns on when an error is generated.

(6)  OUT3 (ENABLE output)

This turns ON when the sensor is ready for TRIG input.

(7)  OUT4 (GATE output)

This turns ON when the measurement data can be aquired. 

(8)  Analog output

The Analog output outputs a current or voltage in accordance with the measured value.

(9)  Analog GND

The Analog GND terminal is the 0V terminal for the Analog output.

This ground wire must be wired separately from the other ground 

wires.

(10) IN0 (BANK A)
        Bank switching input A.
(11) IN1 (BANK B)
        Bank switching input B.
(12) IN2 (BANK C)
        Bank switching input C.
(13) IN3 (BANK D)
        Bank switching input D.
(14) IN4 (LD-OFF)
        Laser ON/OFF switch input. If this signal is set on,the laser will stop emission.
(15) IN5 (ZERO-RESET)
        Zero reset input.
(16) IN6 (TRIG)
        External Trigger input.
(17) IN7 (HOLD-RESET)
        Hold reset input.

3.  Orientation when Installing the Sensor Controller
 

To improve heat radiation, install the Sensor Controller only in the orientation show 

below.

 

Do not install the Sensor Controller in the following orientations.

4. Cleaning

  Do not use paint thinner, benzene, acetone or kerosene to clean the Sensor 

Controller. Doing so will melt the surface of the Sensor Controller.

  Use commercially available alcohol.

Incorrect

Incorrect

I/O circuit diagrams

  

NPN type (ZG2-WDC11/WDC11A)

Brown

Blue

Red

Green

Black

Pink

Gray

Load

Load

Load

Load

Load

24 V DC

OUT0

OUT1

OUT2

OUT3

OUT4

GND (0V)

24 V DC

Yellow

Light blue

Purple

White

IN0

IN1

IN4

IN5

Yellow green

Yellow/Black

IN2

IN3

IN6

Orange

IN7

White/Black

Internal circuit

40

Ω

Co-axial (black)

Shield

Load

Analog output

Analog GND

Current output: 300 

Ω

 or lower

Voltage output: 10 k

Ω

 or higher

Voltage output

±

10V

Current/voltage 
output switch

Current output
4 to 20mA

  

PNP type (ZG2-WDC41/WDC41A)

40

Ω

Brown

Blue

Red

Green

Black

Pink

Gray

Co-axial (black)

Shield

Load

Load

Load

Load

Load

Load

24 V DC

OUT0

OUT1

OUT2

OUT3

OUT4

GND(0V)

24 V
DC

Yellow

Light blue

IN0

IN1

IN2

IN3

IN4

IN5

IN6

IN7

Analog output

Analog GND

Current output: 300 

Ω

 or lower

Voltage output: 10 k

Ω

 or higher

Voltage output

±

10V

Current/voltage 
output switch

Current output
4 to 20mA

Internal circuit

Purple

White

Yellow green

Yellow/Black

Orange

White/Black

Specifications

1.  Do not install the product in locations subjected to the following conditions:

  Direct sunlight or near heaters

  Condensation caused by high humidity

  Sudden changes in humidity

  Cold conditions that may cause freezing

  Presence of corrosive or flammable gases

  Direct vibration or shock

  Build-up of dust or metal chips

  Spraying by organic solvents, water, oil or other liquids

  Strong magnetic or electric field

  Reflection of intense light (such as other laser beams or electric arc-welding machines)

2.  Power Supply and Wiring

  Reverse connection of power supply is not allowed. Connection to AC power supply 

is also not allowed.

  Open-collector outputs should not be short-circuited.

・ 

Use the Extension Cable ZG2-XC

□□

CR:  length 25m/15m/8m/3m for extending 

the cable between the Sensor Head and Sensor Controller. The total length differs 
according to the Extension cable. 

  High-voltage lines and power lines must be wired separately from this product. 

Wiring them together or placing them in the same duct may cause induction, 
resulting in malfunction or damage.

  When using a commercially available switching regulator, make sure that the FG 

(Frame Ground) terminal is grounded.

  If surge currents are present in the power lines, connect surge absorbers that suit the 

operating environment.

  Before connecting/disconnecting the Sensor Head, make sure that the Sensor 

Controller is turned OFF. The Sensor Controller may break down if it is connected 
or disconnected while the power is ON. 

  Use only the specified combinations of Sensor Head and Sensor Controller.

Item

Model

Output method
No. of mounted Sensors 
Measurement time
Unit of minimum display
Range of display
Display

LCD monitor
LED monitor

External
I/F

Output

Input

Functions

Serial I/O

Analog output

Judgement output
(ALL-PASS/NG/ERROR)
Trigger assistance output     
(ENABLE/GATE)

Laser off input(LD-OFF)
Zero reset input(ZERO-RESET)

Trigger input (TRIG)
Bank setting input
(BANK A/BANK B/BANK C/BANK D)
USB2.0
RS-232C
Bank selection
Sensitivity adjustment

Measurement items

Trigger mode

Power supply voltage
Current consumption
Dialectic strength
Ambient temperature
Ambient humidity
Degree of protection
Vibration resistance (destructive)

Shock resistance (destructive)
Materials
Cord length

Weight
Accessories

ZG2-WDC11/WDC11A
NPN

1 per Sensor Controller
5ms/8ms/16ms

10nm

-999.99999~999.99999
TFT2.2-inch Color LCD (display dots:557

×

234pix)

Judgement result indicator (color:orange):T1/T2/T3/T4                       

Laser on indicator (color:green):LD ON

Zero reset indicator (color:green):ZERO-RESET                                 

Trigger indicator (color:green):TRIG

Selectable from 2types voltage/current output (selected by side switch on base)
    

At voltage output:-10 to +10V,output impedance:40

Ω

    

At current output:4 to 20mA,max.load resistance:300

Ω

NPN open-collector,30VDC,50mA max.,
Residual voltage:1.2V max.

ON:Short-circuited with 0V terminal or 1.5V max.
OFF:Open (leakage current:0.1mA max.)

1 port,FULL-SPEED[max.12Mbps],MINI-B
1 port,max. 115200bps
16banks per Sensor Controller
MULTI/HIGH SPEED MULTI/AUTO/FIXED

Height/2-point step/3-point step/Edge position/Edge width/Angle/Intersection angle/Intersection coordinates/
Cross-sectional area/Calculations between tasks (max. 8 items simultaneously selectable)
External trigger/Continuous
21.6V DC to 26.4V DC(including ripple)

0.8A max.
Across all lead wires and controller case,1000VAC,50/60Hz,1min
Operating:0 to 50

,Storage:-15 to 60

  (with no icing or condensation)

IEC60529,IP20
Destruction:10 to 150Hz,0.35-mm single amplitude,10 times each X,Y,and Z directions for 8min

Destruction:150m/s  ,3 times each 6 directions(up/down,left/right,forward/backward)

Case: Polycarbonate (PC), Cable sheath: heat-resistant PVC
2m

Approx.300g(including cord)

Operating and storage:35% to 85% RH (with no condensation)

ZG2-WDC

1  : ferrite core (large) (1 p’ ce), Insure Lock (1 p’ ce), Instruction Sheet (This sheet)

ZG2-WDC

1A : ferrite core (large) (1 p’ ce), ferrite core (small) (2 p’ ces),

 

  Insure Lock (1 p’ ce), Instruction Sheet (This sheet), Smart Monitor ZG2 (exclusive PC software, CD-ROM), USB cable

ZG2-WDC41/WDC41A
PNP

PNP open-collector,50mA max.,
Residual voltage:1.2V max.

ON:Supply voltage short-circuited or within supply voltage -1.5V max.
OFF:Open (leakage current:0.1mA max.)

2

Correct

External I/O

(1) Power supply(24V)
(2) GND(0V)
(3) OUT0
(4) OUT1
(5) OUT2
(6) OUT3
(7) OUT4
(8) Analog output
(9) Analog GND
(10) IN0
(11) IN1
(12) IN2
(13) IN3
(14) IN4
(15) IN5
(16) IN6
(17) IN7

Brown

Blue

Red

Green

Black

Pink

Gray

Co-axial (black)

Shield

Yellow

Light blue

Yellow green

Yellow/Black

Purple

White

Orange

White/Black

Before communicating with a host device, make sure that the product has started up.
Also, clear the receive buffers on the device in use or perform other measures since 
undetermined signals might be output from the host interface when this product is 
started up.

Communication with a Host Device

The following notice applies only to products that carry the CE mark:

Notice:

This is a class A product. In residential areas it may cause radio 

interference, in which case the user may be required to take adequate 

measures to reduce interference.

Manufacturer:

  OMRON Corporation,

  Shiokoji Horikawa, Shimogyo-ku,

  Kyoto. 600-8530 JAPAN

TRACEABILITY INFORMATION:

Importer in EU:

  OMRON Europe B.V.

  Wegalaan 67-69,

  NL-2132 JD Hoofddorp

  The Netherlands

9309251-6B

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