What minimum power of motor could be operated with ATS22 soft starter.
ATS22 is having inbuilt bypass contactor and its switching takes place only when Imotor (Actual Motor current) < 120 %
of In (Motor rated current set with SET menu) along with motor voltage becomes equal to line voltage.
Minimum possible setting of In is 0.7 times Icl (rated starter current). Check whether motor rated current is above this value or not.
If motor with current less than 0.7 x Icl of ATS22 is used than there could be possibility that due to not enough load current, bypass
contactor switching is sacrificed.So, to ensure proper running of motor as well ATS22 soft-starter check whether I motor > = (0.7 x IcL) or not.