Delta VFD-ED Series Drive
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Jun 04, 2022 11:35 am
How can resolve problem oH3 fault in delta VFD-ED series drive ?
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Jun 04, 2022 11:36 am
oH3 Motor Over Heat - Motor overheating The AC motor drive internal temperature exceeds the setting in Pr.06-27 (PTC level).
1. Make sure that the motor is not obstructed.
2. Ensure that the ambient temperature falls in the specified temperature range.
3. Change to a higher power motor.
Check drive rectifier & IGBT using multimeter.
Check wiring.
Check drive hardware using multimeter.
