oC2 fault in Emotron VSB Drive

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oC2 fault indicates Constant-speed overcurrent. This means the inverter's output current has exceeded the safe threshold while the motor was operating at a steady, constant speed. Possible Causes: 1: Output short circuit (phase-to-phase short circuit or output ground short circuit). 2: Overload is too heavy. 3: Power rating of the drive is relatively small. 4: Input voltage is too low. Solutions: 1: Check motor connection and output ground impedance. 2: Reduce the load. 3: Select appropriate drive power rating. 4: Check power grid voltage.

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