PLCFX5UVerification pending — cross-check with the official manual
FX5U 4006H — Common error
Warning — monitor
CAUSE
Why does it occur?
• Initial communication has failed. • Initialization of serial communication has failed.
REMEDY · Step by step
How to fix it?
• When using serial communication, check with the external device manufacturer for support conditions. • When using serial communication, check the CPU module model name selected in the engineering tool. • When using Ethernet communication, shift the communication start timing.
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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