Troubleshooting - Omron ZS-L User Manual

Section 6
APPENDIX

Troubleshooting

This section describes countermeasures for temporary hardware problems. Check the
malfunction in this section before sending the hardware for repair.
Problem
Device restarts during operation. • Is the power supply device connected correctly?
Judgments are not output to
external device.
No input signal received
No communications with per-
sonal computer
Strange linear output levels
The main display remains on
[-----].
An abnormal distance is dis-
played when the object is clearly
outside the measuring range.
The measured values fluctuate
and are not stable depending on
day and time.
ZS-L
6-2
User's Manual
Probable cause and possible countermeasure
• Are all cables connected correctly?
• Is the signal line disconnected?
• Are reset inputs short-circuited?
• Are all cables connected correctly?
• Is the signal line disconnected?
• Is the USB cable connected correctly?
• Is the RS-232 cable connected correctly?
• Is the voltage/current switch on the bottom of the Sensor Control-
ler set to the correct position?
• Has the correct selection (voltage/current) been made in the focus
settings? Linear output levels can be fine-tuned.
• Has a timing input been made while the hold function is enabled
and the trigger type has been set to [EXT]?
• If the hold function is enabled and the trigger type is [SELF-UP] or
[SELF-DOWN], has the self-trigger level been set to an appropri-
ate value?
• This problem may occur due to the characteristics of the sen-
sor.Make sure that the distance to the sensing object is appropri-
ate.
• This problem is sometimes rectified by setting the emitted light
amount to a fixed distance.
• This problem may be due to temperature characteristics. Execute
zero reset periodically using the standard object to correct this
problem.
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