PLCFX5UVerification pending — cross-check with the official manual
FX5U 4D41H — Firmware update function error (Via engineering tool)
Warning — monitor
CAUSE
Why does it occur?
• Access to the module to be updated has failed. • The firmware cannot be updated on the target module. • An incorrect firmware update file (a firmware update file not for the module to be updated) has been used. • An invalid firmware update file has been used.
REMEDY · Step by step
How to fix it?
• Check the module to be updated for any hardware failure and perform the firmware update again. • Check that the module to be updated has started up normally and perform the firmware update again. • Check if the firmware can be updated on the target module. • Set the correct firmware update file fo
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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