PLCFX5UVerification pending — cross-check with the official manual
FX5U 4C1EH — CPU module backup/restoration function error
Warning — monitor
CAUSE
Why does it occur?
• When the SFC program specified a continuation start, the status of the SFC program changed during backup execution, such as changing the step active state or establishing transition conditions.
REMEDY · Step by step
How to fix it?
• Do not allow the status of the SFC program to change while the backup is in progress, and then re-execute.
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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