FA284569
06 November 2022
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,
