Omron Z4W-V User manual

LED Displacement Sensor Z4W-V
Low-cost LED Displacement Sensor
Offers 10-micron Resolution
Measurement point of 25 mm (0.98 in)
with measurement range of ±4mm
(0.16 in).
Easy-to-use, built-in amplifier.
Fast 5-millisecond response.
Visible beam spot means easy
installation.
Range and stability indicators simplify
set-up and monitoring.
IP66 enclosure rating.
LED light source does not require the
safety precautions of a laser-type light
source.
For signal processing or PLC
communication, use with K3TX or K3TS
intelligent Panel Meter.
Ordering Information
Sensing distance Resolution Part number
25±4mm 10 μmZ4W-V25R
Application Examples
Z4W-V25R LED Displacement Sensor
E3C Gate
Input Sensor
K3TS Intelligent
Digital Panel Meter
Forced Zero
Function Switch
Z4W-
V25R
Sensor
Z4W-V25R
Sensor
Two Z4W-V25R LED Displacement Sensors
E3C Gate
Input Sensor
K3TS Intelligent
Digital Panel Meter
Forced Zero
Function Switch
Z4W-V25R
Sensor
Measuring Height DifferenceChecking a Dimension After Assembly
Authorised Distributors:-
Intech Systems Chennai Pvt. Ltd, Chennai-600 032
Ph: 4353 8888 Mob: [phone] Fax: [phone]
E-mail: [email protected] Website: www.intechchennai.com

Specifications
RATINGS
Measurement range ±4 mm (0.16 in)
Measurement point 25 ±1 mm (0.98 in)
Light source Red LED
Spot diameter 2-mm (0.079 in) dia. at measurement point
External light 3,000 lux (incandescent light)
Resolution 10 microns
The resolution is the peak-to-peak
displacement conversion value of the
analog output. (Conditions: white alumina
ceramic at the measurement point.)
Output
fluctuation
Linearity ±3% FS
Response time 5 ms with a white alumina ceramic
object. Linearity changes according to
object.
Displace-
ment
Analog displacement
output
90
%
10
%
TT
The delays are the 10% to 90% rising
and falling times of the analog output in
response to a sudden change in the
displacement.
rl
Temperature characteristics ±0.3% FS/°C
Warm-up time required 3 minutes (within 1% of stable value)
Indicators Stability Stable range: Green
Operating range: Not lit
Dark: Red
Range In range: Green
Out of range: Red
Outputs Analog output 4to20mA/
±4mm
Load impedance: 300Ωmax.
DARK output NPN open collector
50 mA max., 30 VDC
Residual voltage: 1 V max.
CHARACTERISTICS
Power supply voltage 12 to 24 VDC±10%, max. permissible ripple: 10% peak-to-peak
Current consumption 80 mA max.
Vibration resistance Destruction: 10 to 55 Hz (1.5-mm double amplitude, 30G max.) for 15 minutes each in X, Y,
and Z directions
Shock resistance Destruction: 50G for 3 times each in X, Y, and Z directions
Ambient temperature Operating: --10°to 55°C(14
°to 131°F) with no icing
Ambient humidity 35% to 85% (with no icing)
Enclosure rating IP66
Weight 150 g (5.29 oz.) with 5-m (16.4 ft.) cable; 50 g (1.76 oz.) without cable
Accessories supplied Mounting bracket, mounting screws, resistor (250 Ω,0.5W)
Z4W-V Z4W-V

Engineering Data
LINEARITY CHARACTERISTICS VS.OBJECTS
Linearity characteristic curves are obtained by detecting an object at different positions within the measurement range and plotting the
analog output error resulting from each operation. The LED Displacement Sensor cannot detect an object accurately if the reflection ratio
of the object is extremely small (for example, a black object) or extremely large (for example, an object with a shiny surface).
Inclined Object (Typical Example)
Angle: 0

Angle: --15

Angle: +15

Error (% FS)
White ceramic
Black paper
Rolled steel
plate
Distance from measurement point (mm)
Error (% FS)
White ceramic
Black paper
Rolled steel
plate
Positive
inclination
Negative
inclination
Distance from measurement point (mm)
Error (% FS)
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Distance from measurement point (mm)
Angle: --30

Angle: +30°
Error (% FS)
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Distance from measurement point (mm)
Error (% FS)
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Distance from measurement point (mm)
Obliquely Positioned Object (Typical Example)
Angle: --15

Angle: +15

Error (% FS)
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Distance from measurement point (mm)
Error (% FS)
Distance from measurement point (mm)
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Z4W-V Z4W-V

Obliquely Positioned Object (continued)
When installing the sensor, position the
s
e
n
s
o
r
c
o
r
r
e
c
t
l
y
f
o
r
t
h
e
t
y
p
e
o
f
o
b
j
e
c
t
t
o
Angle: --30

Angle: +30

sensor correctly for the type of object to
be detected. If a shiny object is
positioned at a large oblique angle to
the sensor, detection of the object will
be difficult and may cause an inaccurate
output.
Error (% FS)
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Distance from measurement point (mm)
Error (% FS)
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Distance from measurement point (mm)
SENSING VARIOUS OBJECTS
Offset Error vs. Object Material Offset Error Range (Typical Example)
When detecting a variety of objects
successively, refer to the offset error
graph shown here. The graph illustrates
changes in sensor output
characteristics when black paper is
compared to white paper.
To reduce the offset error value, install
the Sensor so that objects are detected
at (or as close as possible to) the
measurement point.
Offset Error (% FS)
Distance from measurement point (mm)
ANGLE CHARACTERISTICS
The angle characteristics were obtained
by detecting an object with different Inclined Object
(Typical Example) Obliquely Positioned Object (Typical Example)
b
y
d
e
t
e
c
t
i
n
g
a
n
o
b
j
e
c
t
w
i
t
h
d
i
f
f
e
r
e
n
t
angles of inclination at the
measurement point and plotting the
analog output error resulting from each
operation.
The LED Displacement Sensor is
designed to detect the front of an object
facing the sensor. Errors occur when
the object is positioned at a large
oblique angle to the sensor.
Inclination angle (  )
Error (% FS)
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Error (% FS)
Inclination angle (  )
Positive
inclination
Negative
inclination
White ceramic
Black paper
Rolled steel
plate
Z4W-V Z4W-V

Connections
SENSOR CONNECTIONS
Brown (red) 12 to 24 VDC
Power supply
Blue (black)
0VGND
Orange 50 mA max. at 30
VDC DARK output
Shield *
GND
Black (white) 4 to 20 mA
Analog output
* The two ground terminals,
blue (black) and shield are
internally connected. However,
the blue (black) ground must
be used with the brown (red)
terminal for the power supply;
the shield ground must be
used with the black (white)
terminal for the analog output.
Note: IEC wire colors shown first.
SENSOR OUTPUT CIRCUITS
Load power supply
(30 VDC max.)
12 to 24 VDC
4to20mA
0V
Brown
(red)
Signal processor
DARK output (Orange)
Black
(white)
Shield
Blue
(black)
Note: IEC wire colors shown first.
SENSOR TO Z4W-DD1C CONTROLLER SENSOR TO S3A-DAK-US CONTROLLER
Monitor
20
mA
Z4W-DD1C
Gate Sensor
Z4W-V25R
4to20mA Black(white)
0V
+12 V
0V
100 mA,
30 VDC max.
FG
100 to 240 VAC,
50/60Hz
+12 V Brown (red)
DARK output
0 V Blue (black) Shield
Output
12 V Brown (red)
Black (white)
(black)
Blue
Inhibit Trigger
Orange (orange)
4to
Note: IEC wire colors shown first.
0V
100/110
VAC,
50/60 Hz
Shield 0V
4to20mA
0V IN
Black (white)
80 mA, 30 VDC max.
3A, 250 VAC max
S3A-DAK
200/220 VAC,
50/60 Hz
HI MID LOW
HI MID LOW
+12

10% ERROR,
80 mA max.
Z4W-V25R
Blue (black)
Note: IEC wire colors
shown first.
Brown (red) +V
Z4W-V Z4W-V