NAiS FP Series User Manual page 245

Self - Diagnostic and Troubleshooting
12.2.4 If Outputting does not Occur as Desired
Proceed from the check of the output side to the check of the input side.
Check of output condition 1: Output indicator LEDs are on
Procedure 1
Check the wiring of the loads.
Procedure 2
Check if the power is properly supplied to the loads.
- If the power is properly supplied to the load, there is probably an abnormality in the
load. Check the load again.
- If the power is not supplied to the load, there is probably an abnormality in the output
section. Please contact your dealer.
Check of output condition 2: Output indicator LEDs are off
Procedure 1
Monitor the output condition using a programming tool.
- If the output monitored is turned on, there is probably a duplicated output error.
Procedure 2
Forcing on the output using forcing input/output function.
- If the output indicator LED is turned on, go to input condition check.
- If the output indicator LED remains off, there is probably an abnormality in the
output unit. Please contact your dealer.
Check of input condition 3: Input indicator LEDs are off
Procedure 1
Check the wiring of the input devices.
Procedure 2
Check that the power is properly supplied to the input terminals.
- If the power is properly supplied to the input terminal, there is probably an
abnormality in the input unit. Please contact your dealer.
- If the power is not supplied to the input terminal, there is probably an abnormality
in the input device or input power supply. Check the input device and input power
supply.
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FPΣ