Hardware alarm "Aux. Supply" in Micom P122 relay

[devalkansagara-24]

Hardware Alarm "Aux. Supply" continuously showing in Micom P122 relay and not re-setted this alarm. How to resolve this issue?

[Arun-kumar_PS · Accepted solution]

Hello @devalkansagara-24 

This alarm is raised when the P122 relay self-diagnosis function identifies a fault in the auxiliary power supply rails internal to the relay. This fault is classified as a major alarm and the relay cannot perform protection & automation functions . The relay must be repaired to rectify and reset the alarm. Please remove the relay from use and contact the local Schneider office for repair support.