Fault

PCS-ARM-21

ARM software fault - DC charging overcurrent.

1 Devices that report this code
FLS-ES232LC-SEnergy storage system↗ view on device
PCS-ARM-21ARM software fault - DC charging overcurrent.Fault— level 2
Cause

DC charging current exceeded threshold.

Recommended fix

Reset to restart. Check system power settings do not exceed rated capacity; check actual battery voltage range. More than 3 faults in one day require manual intervention.

Source:FLS-ES232LC-S.pdf

Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.