Delta VFD-B Series Drive
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May 18, 2022 10:01 am
How can resolve problem ocA fault in delta VFD-B series drive ?
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May 18, 2022 10:02 am
Over-current during acceleration
1. Short-circuit at motor output: Check for possible poor insulation at the output lines.
2. Torque boost too high: Decrease the torque compensation setting in Pr.7-02.
3. Acceleration Time too short: Increase the Acceleration Time.
4. AC motor drive output power is too small: Replace the AC motor drive with the next higher power model.
Check drive rectifier & IGBT using multimeter.
Check wiring.
Check drive hardware using multimeter.
