Omron ZW-7000 Series User Manual page 259

Error type Phenomenon
Measurement The logical beam is not
error emitted from the Sensor
Head.
The logical beam does
not come out of the
Sensor Controller.
The measured values
fluctuate gradually.
The measured values
differ from the intended
values.
Input error No input signal received.
Output error The judgment result
cannot be output to an
external device.
The analog output is not
correct.
ZW-7000/5000
User's Manual
Cause
The connection between the
Sensor Head and the Sensor
Controller or the connection with
the extension fiber cable is not
normal.
The fiber cable is disconnected.
The LIGHT OFF input line is short-
circuited.
The operating ambient temperature
of Sensor Head or Controller is
fluctuating.
The warm-up time is inadequate.
The scaling has not been done
correctly.
The zero reset value is not correct. Set the zero reset correctly.
The serial numbers of the Sensor
Head and calibration ROM do not
match.
Cables are not connected correctly. Check the input circuit and the wiring
The signal line is disconnected.
Cables are not connected correctly. Check the output circuit and the
The signal line is disconnected.
The signal logic is not correct.
The RESET input line is short-
circuited.
The non-measurement setting is
set to "CLAMP", and measurement
cannot be performed.
Cables are not connected correctly. Check the output circuit and the
The signal line is disconnected.
The voltage and current values are
off the meter.
An oscilloscope or a high-speed A/
D board is being used.
Countermeasure
Check the fiber cable connections.
The Sensor Head needs to be
repaired.
Please contact an OMRON branch or
sales office.
For Sensor Head repair, return as a
set with the Calibration ROM.
Check the wiring.
• Maintain a certain operating ambi-
ent temperature.
• Execute zero reset periodically
using the standard object.
Wait 30 minutes after switching ON
the power before using.
Check the scaling setting.
Confirm the serial numbers match.
for proper connection.
wiring for proper connection.
Check the logic of the signal.
Check the input circuit and the wiring
for proper connection.
Set the non-measurement setting
correctly. By selecting the non-
measurement setting to "KEEP", the
judgment result before measurement
is disabled can be output.
wiring for proper connection.
Set the correct monitor focus based
on the measured value.
Use of these devices may reduce the
resolution. Change the monitor focus
to minimize the effect.
Troubleshooting
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