Mitsubishi MELESEC-ST User Manual page 136

12 TROUBLESHOOTING
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(b) When ERR. LED is on
ERR. LED is on.
Change the output
module whose ERR.
LED is on.
Has the ERR. NO
LED turned
off?
YES
Completed
Please contact your local
Mitsubishi service center or
representative, explaining a
detailed description of the
problem.
MELSEC-ST
12 - 11