ov2 fault in Emotron VSB Drive

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ov2 fault indicates Constant-speed overvoltage. This means the inverter's internal DC bus voltage exceeded the safe limit while the motor was operating at a steady, constant speed. Possible Causes: 1: Load variation is too big. 2: Abnormal input voltage. 3: Output short circuit (phase-to-phase short circuit or output ground short circuit). 4: Improper parameter setting of regulator under SVC control. Solutions: 1: Check the load. 2: Check power grid voltage. 3: Check motor connection and output ground impedance. 4: Properly set regulator parameters.

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