Err07 fault in Emotron VS Series Drive

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Err07 fault indicates Bus undervoltage. This means the DC bus voltage has dropped below the minimum threshold required for proper inverter operation. Possible Causes: 1: Instantaneous power failure occurs on the input power supply. 2: The AC drive's input voltage is not within the allowable range. 3: The bus voltage is abnormal. 4: The rectifier bridge and buffer resistor are faulty. 5: The drive board is faulty. 6: The main control board is faulty. Solutions: 1: Reset the fault. 2: Adjust the voltage to normal range. 3: Contact the agent or CG.

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