PLCXGI-CPUVerification pending — cross-check with the official manual
XGI-CPU 502 — Low Battery Voltage
Warning — monitor
CAUSE
Why does it occur?
Battery voltage is low.
REMEDY · Step by step
How to fix it?
Change battery while power is on.
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
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