PLCFX5UVerified · sol.ls-electric.com
FX5U LED-PROG-OFF — P RUN LED off
Alarm — operational, inspection needed
CAUSE
Why does it occur?
Program is not in RUN state - stopped due to STOP or an error
REMEDY · Step by step
How to fix it?
Check the STOP/RUN switch position and the error LED at the same time
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Summary based on the official Mitsubishi Electric manual. For accurate and complete information, always consult the official manual.
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