PLCFX5UVerification pending — cross-check with the official manual
FX5U 4D4EH — Firmware update function error (Via engineering tool)
Warning — monitor
CAUSE
Why does it occur?
• The specified operation cannot be performed because the firmware update is being performed. • A remote operation other than remote RESET was executed.
REMEDY · Step by step
How to fix it?
• Reset the CPU module after the completion of the firmware update and perform the specified operation again.
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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