Omron ZW Series - Page 225

Chapter 7 APPENDIX
Chapter 7
Troubleshooting
7-3
ZW
User’s Manual
Measuremen
t error
Input error
The measured values
fluctuate.
Intense ambient light is
present.
• Shield the ambient light.
• Increase the background
removal level.
Smart
Monitor
ZW
Operation
Manual
Mutual interference is
occurring.
Check the Sensor Head
installation position.
p.1-9
The measured values
fluctuate gradually.
The operating ambient
temperature is fluctuating.
• Maintain a certain operating
ambient temperature.
• Execute zero reset periodi-
cally using the standard
object.
p.2-15
The warm-up time is
inadequate.
Wait 30 minutes after
switching ON the power
before using.
-
The measured values
differ from the
intended values.
The target to measure is
inclined or the position is
offset.
Place the target to measure
correctly in the measuring
range.
p.1-8
The scaling has not been
done correctly.
Check the scaling setting. p.3-21
The zero reset value is not
correct.
Set the zero reset correctly. p.3-37
The Sensor Head has not
been calibrated correctly.
Recalibrate the Sensor Head. p.1-19
Measured values are
output even though
there is no target.
The fiber cable edge or the
lens surface of the Sensor
Head is dirty.
Clean the surface. p.1-16
The connection between the
Sensor Head and the
controller or the connection
with the extension fiber cable
is not normal.
Check the fiber cable
connections.
p.1-15
Intense ambient light is
present.
• Shield the ambient light.
• Increase the background
removal level.
Smart
Monitor
ZW
Operatio
n Manual
Mutual interference is
occurring.
Check the Sensor Head
installation position.
p.1-9
Measurement values
are output even
though the sensor
head's fiber cable is
not connected to the
controller.
The controller side fiber
connector is dirty.
Clean the surface. p.1-16
The logical beam
does not come out of
the Sensor Head.
The connection between the
Sensor Head and the
controller or the connection
with the extension fiber cable
is not normal.
Check the fiber cable
connections.
p.1-15
The fiber cable edge or the
lens surface of the Sensor
Head is dirty.
Clean the surface. p.1-16
The fiber cable is
disconnected.
Replace the fiber cable. p.1-15
The LED_OFF input line is
short-circuited.
Check the wiring. p.4-2
Input error No input signal
received.
Cables are not connected
correctly.
Check the input circuit and the
wiring for proper connection.
p.4-2
The signal line is
disconnected.
Error type Problem Probable cause Possible countermeasure Page