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ZG2

Smart Sensor (2D Measurement Sensor)

ZG2

2D Laser Profile Measurement System. ZG2 debut! Achieving stable measurement through innovative technology.

Sensor Heads

Item ZG2-WDS8T ZG2-WDS22 ZG2-WDS70 ZG2-WDS3VT
Optical system Diffuse
reflective
Regular
reflective
Diffuse
reflective
Regular
reflective
Diffuse
reflective
Regular
reflective
Diffuse
reflective
Meas-
urement
range
Height direction 50
± 3 mm
44
± 2 mm
100
± 12 mm
94
± 10 mm
210 ± 48 mm
(In the high-
precision mode)
22.3
± 0.5 mm
10.6
± 0.4 mm
Width direction *5 8 mm (typical) 22 mm (typical) 70 mm (typical) 3 mm (typical)
Resolution Height direction
*1
1 μm 2.5 μm 6 μm 0.25 μm
Width direction 13 μm
(8 mm/631 pixels)
35 μm
(22 mm/631 pixels)
111 μm
(70 mm/
631 pixels)
5 μm
(3 mm/631 pixels)
Linearity (in the height
direction) *2
± 0.1 %F.S.
Temperature characteristic
*3
0.03 %F.S./℃ 0.02 %F.S./℃ 0.08 %F.S./℃
Light
source
Type Visible semiconductor laser
Wavelength 658 nm 650 nm
Output 5 mW max. output, 1 mW max. exposure
(without using optical instruments)
1 mW max
Laser class Class 2M of EN60825-1/IEC60825-1
Class IIIB of FDA (21CFR 1040.10 and 1040.11)
Class 2 of
EN60825-1/
IEC60825-1
Class II of FDA
(21CFR 1040.10
and 1040.11)
Beam shape (at measurement
center distance) *4
30 μm × 24 mm
(typical)
60 μm × 45 mm
(typical)
120 μm ×
75 mm (typical)
25 μm × 4 mm
(typical)
LED STANDBY: Lights when laser irradiation preparation is complete (indication color:
green)
LD_ON: Lights when the laser is irradiating (indication color: green)
Measurement object Surface of non-transparent/transparent
objects
Surface of non-
transparent
objects
Surface of non-
transparent/
transparent objects
Environ-
mental
resistance
Ambient light
intensity
Illumination on the photo-receiving face 7,000 lx max.: Incandescent lamp
Ambient
temperature
Operating: 0 to 50℃, Storage: -15 to 60℃ (with no icing or condensation)
Ambient humidity Operating and storage: 35 to 85 % (with no condensation)
Degree of
protection *6
IP66(IEC60529) IP67(IEC60529)
Vibration
resistance
(destruction)
10 to 150 Hz with 0.35 mm single amplitude for 80 min each in X, Y, and Z directions
Shock resistance
(destruction)
150 m/s2, 3 times each in 6 directions (up/down, right/left, forward/backward)
Materials Case: Aluminum diecast, Front cover: Glass, Cable insulation: Heat-resistive
polyvinyl chloride (PVC), Connector: Zinc alloy or brass
Cable length 0.5 m, 2 m (flexible cable)
Minimum bending radius 68 mm
Weight Approx. 500 g Approx. 500 g Approx. 650 g Approx. 300 g
Accessories Laser labels (English labels), Ferrite core (2), Instruction manual

*1. Obtained by setting an OMRON standard measurement object at the measurement center distance and determining
       the average height of the beam line.
       The conditions are given in the table below. However, satisfactory resolution cannot e attained in strong
       electromagnetic fields.
       The minimum resolution of the ZG2-WDS8T/WDS3VT is 0.25 μm, even when the average number of operations is
       increased. Resolution does not go any lower.

Model CCD
mode
Average No.
of operations
Measurement object
Regular reflective Diffuse reflective
ZG2-WDS8T/
ZG2-WDS22/
ZG2-WDS70
High-
precision
mode
64 OMRON standard white alumina ceramic obje
ZG2-WDS3VT OMRON standard mirrored object OMRON standard diffuse reflective
object

*2. The tolerance for and ideal straight line obtained by determining the average height of and OMRON standard
       measurement object for the beam line.
       The CCD high-resolution mode is used. Linearity varies depending on the measurement object.

Model CCD
mode
Average No.
of operations
Measurement object
Regular reflective Diffuse reflective
ZG2-WDS8T/
ZG2-WDS22/
ZG2-WDS70
High-
resolution
mode
1 OMRON standard white alumina ceramic object
ZG2-WDS3VT OMRON standard mirrored object OMRON standard diffuse reflective
object

*3. A value attained by using an aluminum jig to secure the distance between the Sensor Head and the measurement
       object. The CCD standard mode is used.
*4. Defined as 1/e2 (13.5%) of the center light intensity.
       This may be influenced when light leakage also exists outside the defined area and the reflectivity of the light around
       the measurement object is higher than that of the measurement object.
*5. A typical value of the measurement range (width direction) near the measurement center distance.
       This is not a guaranteed value.
*6. Protection structure of connector area is IP40.

Sensor Controllers

Item ZG2-WDC11/WDC11A ZG2-WDC41/WDC41A
Input/output type NPN PNP
No. of connectable Sensor Heads 1 per Controller
No. of connectable Controllers 2
Measurement cycle * 16 ms (high-precision mode), 8 ms (standard mode), 5 ms (high-
speed mode)
Min. display unit 10 nm
Display range -999.99999 to 999.99999
Display LCD monitor 1.8-inch TFT color LCD (557 x 234 pixels)
LEDs Judgment indicators for each task (indication color: orange): T1,
T2, T3, T4
Laser indicator (indication color: green): LD_ON
Zero reset indicator (indication color: green): ZERO
Trigger indicators (indication color: green): TRIG
External
interface
Input/
output
signal
lines
Analog outputs Select voltage or current (using the sliding switch on the bottom
surface)
Voltage output: -10 to 10 V, output impedance: 40 Ω
Current output: 4 to 20 mA, maximum load resistance: 300 Ω
Judgment output
(ALL-PASS/NG/ERROR)
NPN open collector
30 VDC, 50 mA max.
Residual voltage: 1.2 V max.
PNP open collector
50 mA max.
Residual voltage: 1.2 V max.
Trigger auxiliary output
(ENABLE/GATE)
Laser stop input
(LD-OFF)
ON: O V short or 1.5 V max.
OFF: Open
(leakage current: 0.1 mA max.)
ON: Power supply voltage
short or power supply
voltage -1.5 V max.
OFF: Open
(leakage current: 0.1 mA max.)
Zero reset input (ZERO)
Measurement trigger
input (TRIG)
Bank switching input
(BANK A to D)
Serial I/O USB2.0 1 port, full speed (12 Mbps), MINI-B
RS-232C 1 port, 115,200 bps max.
Parallel
output
(when
ZG-RPD is
mounted)
Output 18 - terminal
Main functions No. of setting banks 16
Sensitivity adjustment Multi, High-speed multi, Auto, Fixed
Measurement items Height, 2-point Step, 3-point Step, Edge position, Edge width,
Angle, Intersection coordinates, Intersection angle, Sectional
area, Calculations between tasks
(up to eight items can be measured simultaneously)
Auxiliary functions Filter, Laser power adjustment, Position correction (height,
position, lope), Linked operation, Point of inflection measurement
Profiles saved 16 profiles (1 profile per bank)
Trigger modes External trigger/continuous
Ratings Power supply voltage 21.6 to 26.4 VDC (including ripple current)
Current consumption 0.8 A max. (per sensor head)
Insulation resistance 20 MΩ at 250 V between lead wires and Controller case
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between lead wires and Controller
case
Environmental
resistance
Ambient temperature Operating: 0 to 50℃, Storage: -15 to 60℃ (with no icing or
condensation)
Ambient humidity Operating and storage: 35 to 85 % (with no condensation)
Degree of protection IP20 (IEC60529)
Vibration resistance
(destruction)
Vibration frequency: 10 to 150 Hz, single amplitude: 0.35 mm,
acceleration: 50 m/s2
Shock resistance
(destruction)
150 m/s2, 3 times each in 6 directions (up/down, right/left,
forward/backward)
Material Case: Polycarbonate (PC),
Cable insulation: Heat-resistive polyvinyl chloride (PCV)
Cable length 2 m
Minimum bending radius 57 mm
Weight Approx. 300 g (including cable)(Packed state: Approx. 450 g)
Accessories ZG2-WDC_1: Large Ferrite Core (1 piece), Instruction Manual
ZG2-WDC_1A: Large Ferrite Core (1 piece), Small Ferrite Core
(2 pieces), Instruction Manual, Setup Support Software (CD-
ROM), USB cable (1 m)

* The image input periods listed here are for fixed/auto sensitivity. The image input period will be longer for multi-
   sensitivity, high-speed multi-sensitivity, or other settings. When the high-power mode is ON, the shortest image input
   period is 95 ms regardless of the setting of the CCD mode.
   Use the eco monitor in the RUN mode to determine the actual image input period.

Data Storage Unit

Item ZG2-DSU11 ZG2-DSU41
Input/output type NPN PNP
No. of connectable Controllers 2 *1
Connectable Controllers ZG2-WDC11/WDC41
External
interface
Input/
output
signal
lines
Inputting
starting/
terminating
logging
ON: O V short or 1.5 V max.
OFF: Open
(leakage current: 0.1 mA max.)
ON: Power supply voltage short or power
supply voltage -1.5 V max.
OFF: Open (leakage current: 0.1 mA max.)
Judgment output
(HIGH/PASS/
LOW/ERROR)
NPN open collector
30 VDC, 50 mA max.
Residual voltage: 1.2 V max.
PNP open collector
50 mA max.
Residual voltage: 1.2 V max.
Serial
I/O
USB2.0 1 port, full speed (12 Mbps), MINI-B
RS-232C 1 port, 115,200 bps max.
Functions No. of
logged
data
*2
Memory of the
main unit
Profiles saved: 5,120 profiles
Measurement values saved: 65,000 values max. *3
Memory card
(256 MB) *4
Profiles saved: 35,328 profiles max. (256 profiles x 138 files)
Measurement values saved: 7,150,000 values max. (65,000 values x 110 files)
Logging trigger functions External triggers, data triggers (self-triggers), and time triggers
External banks functions 4096
Other functions Alarm output functions
Ratings Power supply voltage 21.6 to 26.4 VDC (including ripple current)
Current consumption 0.5 A max.
Environ-
mental
resistance
Ambient temperature Operating: 0 to 50℃, Storage: 0 to 60℃ (with no icing or condensation)
Ambient humidity Operating and storage: 35 to 85% (with no condensation)
Degree of protection IP20 (IEC60529)
Material Case: Polycarbonate (PC)
Cable length 2 m
Minimum bending radius 52 mm
Weight Approx. 280 g
Accessories Ferrite Core (1 piece), Instruction Manual

*1. The controller link unit is necessary for linking.
*2. Data is saved in the memory of the main unit during logging. The data is automatically saved in a memory card after
       logging is completed.The maximum number of logging differs according to set conditions.
*3. Measurement values for 65,000 measurements can be saved even when two sensor controllers are connected and
       each performs eight tasks.
*4. The value is the maximum number achieved in the following conditions.
        One sensor controller performs one measurement task.
        Either profiles or measurement values are logged.