oL1 fault in Emotron VSB Drive

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oL1 fault indicates Drive overloaded. This means the inverter is outputting a current higher than its rated capacity for a duration that exceeds its thermal overload limits. Possible Causes: 1: Torque boost is too big under V/f control. 2: Starting frequency is too high. Solutions: 1: Reduce torque boost value. 2: Drop starting frequency.

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