StF Detection is active during the motor starting phase (acceleration phase). The ATS48 will trigger an STF fault if: the starting time > TLS.
• Parameter setting In lower than the nominal motor current indicated on the rating plate.
• TLS parameter setting too low.
• ILT parameter setting (limiting current) too low.
• Parameters configured incorrectly (ILT, TLI, tq0, LSC parameters).
• ATS48 undersized.
• Parameter setting In lower than the nominal motor current indicated on the rating plate.
• TLS parameter setting too low.
• ILT parameter setting (limiting current) too low.
• Parameters configured incorrectly (ILT, TLI, tq0, LSC parameters).
• ATS48 undersized.
Released for: Schneider Electric India
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