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Chapter 10 Troubleshooting
10-5
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Are the indicator LEDs of
the P000 and P001?
No
Check the P000, P001
terminal voltage with
tester.
Yes
Is the value normal?
Separate the external
wiring switch, then check
the status by forced input.
Is the value normal?
Check the status of
P000 and P001.
Unit replacement
is needed
Check the P000, P001
terminal voltage with
tester.
Is the value normal?
Is the
terminal screw tightened
securely?
Is input wiring correct?
Correct wiring
Retighten the
terminal screw.
Replace the
terminal board
connector.
Unit replacement is
needed
Check from the beginning
Is the condition
of the terminal board connector
appropriate?
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
No
No