Delta ME300 Series Drive
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Apr 23, 2022 7:25 am
How can resolve problem ocn Over-current during steady operation fault in delta ME300 series drive ?
1 Reply
Apr 23, 2022 7:26 am
Cause : Output current exceeds 2.5 times of the rated current
during constant speed. When ocn occurs, the drive
closes the gate of the output immediately, the motor
runs freely, and the display shows an ocn error.
Short-circuit at motor output due to poor insulation wiring.
The ocn occurs due to short circuit or ground fault at the output side of the drive.
Check for possible short circuits between terminals with the electric meter:
B1 corresponds to U, V, W; DC- corresponds to U, V, W; corresponds to U,
V, W.
