Alarm over voltage drives the input voltage is measured with voltmeter, ruled out.
Provide the correct voltage of power supply.
Alarm owe voltage driving the input voltage is measured with voltmeter, rule out the reason, provide the correct voltage of power supply.
Alarm overload A.
For a long time more than the rated load and torque operation to extend the time of acceleration and deceleration slope, reduce the motor load.
Gain setting vibration caused by the unreasonable and jitter, cause abnormal vibration or noise, adjust the gain.