Manual

13: TROUBLESHOOTING
13-12 WEB SERVER CPU MODULE USER’S MANUAL FC9Y-B1278
Troubleshooting Diagram 4
Are wiring and
operation of external
devices correct?
Is the input terminal
powered correctly?
Is the input wiring correct?
Input does not operate normally.
Are input device
addresses correct?
Correct the external
device wiring.
Is the input LED on?
Correct the program.
Correct the input wiring.
Supply the rated voltage to the input
terminal.
Input voltage range
All-in-one CPU, input, mixed I/O modules: 20.4 to 28.8V DC
Slim type CPU modules: 20.4 to 26.4V DC
AC input module: 85 to 132V AC
NO
NO
NO
YES
YES
NO
YES
YES
NO
END
Call IDEC for assistance.
YES