Cause : Low-voltage at stop comes when the DC bus voltage within the drive has fallen below a set limit while the motor is not running.

The LvS error code on your Delta MS300 drive indicates a Low-voltage at stop. This means the DC bus voltage is lower than Pr.06-00 setting value at stop.

1. Improve power supply condition.
2. Check if the power specification matches the drive.
3. Adjust voltage to the power range of the drive.
4. Cycle the power after checking the power.