Cause : Low-voltage during acceleration comes when the DC bus voltage within the drive has fallen below a set limit while the motor is accelerating.

The LvA error code on your Delta MS300 drive indicates a Low-voltage During Acceleration condition. This means the DC bus voltage within the drive has fallen below a set limit while the motor is accelerating.

1. DC bus voltage is lower than Pr.06-00 setting value during acceleration.
2. Improve power supply condition.
3. Adjust voltage to the power range of the drive.
4. Check the power system.
5. Increase the capacity of power equipment.