What can cause an SSCr fault code on an ATS22 soft starter?
When given a run command, the display shows SSCr and the soft start will not run the motor.
All models, all serial numbers
Condition results in fault code
This fault code can be the result of several things.
At a run command, the ATS22 expects to see current going to the motor. If not, it will trip SSCr. Check that the motor is electrically connected. Check that the motor windings are not burned open. Also verify the proper motor connections.
Another cause is too much current through the ATS22. A shorted SCR or a welded contact on the internal shorting contactor will both cause SSCr trip. Check the resistance through each pole, L1-T1, L2-T2, L3-T3, for indications of either condition.