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Chapter6 Troubleshooting
F3SJ-B
User’s Manual
Appendix
Internal error due to power supply
voltage or noise
The internal circuitry may be defective due to power supply voltage or noise.
Check the ambient noise environment.
Make sure that the power supply voltage is 24VDC±20%.
If the indicator still shows this error, replace the F3SJ-B.
Malfunction due to ambient light or
vibration
An instantaneous beam shift may have occurred due to vibration or ambient light.
Check the installation condition.
Take necessary measures against mutual interference according to "Mutual Interference
Prevention" in Chapter 3.
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Description Cause and measures