Issue:
What causes a STF fault on a ATS22 soft start?
Product Line:
ATS22
Environment:
STF faults
Cause:
n/a
Resolution:
This is starting time detected faults. Make sure the tLS parameter (Set menu) is longer than the ACC (Set menu) parameter.
Would also make sure the In parameter matches the motor FLA and may need to increase the ILT parameter, if possible.
Released for: Schneider Electric Saudi Arabia
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