Cause : Over-current during deceleration comes when the current flowing from the motor back to the drive during deceleration (slowing down) has exceeded the set limit.

The ocd error code on your Delta MS300 drive indicates an Over-current During Deceleration condition. This means the current flowing from the motor back to the drive during the deceleration phase has exceeded the set limit.

1. Increase the deceleration time.
2. Increase the deceleration time of S-curve.
3. Set auto-acceleration and auto-deceleration parameter (Pr.01-44).
4. Set over-current stall prevention function (Pr.06-03).
5. Replace the drive with a larger capacity model.