Mitsubishi Q172CPU User Manual page 184

6 INSPECTION AND MAINTENANCE
NO
(c) Flowchart for when "RUN" LED is turned off.
The following shows the flowchart when the "RUN" LED is turned off during
operation.
"RUN" LED is turned off.
Is "ERR." LED
turned on/flickered?
NO
Reset the PLC CPU module
of the CPU No.1 with RESET/ L.CLR
switch.
"RUN" LED turned off
Set the RUN/STOP switch to STOP
and write the servo setting data to the
Motion CPU module with the GSV P.
Is "RUN" LED
turned on?
YES
Completion
(d)
YES
"Flowchart for when "ERR." LED
is turned on/flickered."
"RUN" LED
turned on
1) Motion CPU parts/connection
fault
2) By excessive noise
Explain the error symptom and get
advice from our sales representative.
Specify the noise source, and remove
it.
6 - 17
For the case of 1) For the case of 2)