Issue:
ATS48 is showing LRF fault code.

Product Line:
Altistart ATS48 soft starters

Environment:
All

Cause:
Locked motor rotor.

Resolution:
Locked rotor in steady state
This fault is only active in steady state with soft starter bypass contactor. It is detected if the current in a phase is greater than or equal to 5IN (five times the FLA) for more than 0.2 s.
Check the mechanism for wear, mechanical play, lubrication, blockages,

Udgivet til: Schneider Electric Danmark