Over-current during deceleration (ocd)

Output current exceeds 3 times of the rated current during deceleration. When ocd occurs, the drive closes the gate of the output immediately, the motor runs freely, and the display shows an ocd error.

Deceleration time is too short

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.

The load is too large - Check if the output current during the whole working process exceeds the AC motor drive’s rated current. If yes, replace the AC motor drive with a larger capacity model.

The ocd occurs due to short circuit or ground fault at the output side of
the drive.
Check for possible short circuits between terminals with theelectric
meter:
B1 corresponds to U, V, W; DC- corresponds to U, V, W; corresponds
to U, V, W.