Err03 fault in Emotron VS Series Drive

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Err03 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: The output circuit is grounded or short circuited. 2: The voltage is too low. 3: A sudden load is added during operation. 4: The AC drive model is of too small power class. Solutions: 1: Eliminate external faults. 2: Adjust the voltage to normal range. 3: Remove the added load. 4: Select an AC drive of higher power class.

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