LS Industrial Systems GLOFA G7M-DR30U - Page 340

Chapter 11. Troubleshooting
11-6
Continue
A
re the indicator LED of the
switch 1 and 2 on?
No
Check the status of the
switch 1and 2
YES
Is input wiring correct?
Separate the external wiring, and then
check the status of input by I/O forced.
Correct the wiring
Check the status of the
switch 1and 2
Unit replacement is
needed
Check the status of the
switch 1and 2
Is input wiring correct?
Is the
terminal screw tighten
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
NO
YES
NO
YES
YES
NO
YES
NO
NO