PLCFX5UVerification pending — cross-check with the official manual
FX5U 4D47H — Firmware update function error (Via engineering tool)
Warning — monitor
CAUSE
Why does it occur?
• The operation cannot be performed because the firmware update is being performed. • The operation cannot be performed because the CPU module is not reset after the firmware update. • An error occurred during execution of the previous firmware update.
REMEDY · Step by step
How to fix it?
• After the firmware update completes, perform the operation again. • Manually reset the CPU module and perform the firmware update 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.
Open official manual ↗