Delta VFD-M Series Drive
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May 16, 2022 11:54 am
How can resolve problem GFF Ground fault in delta VFD-M series drive ?
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May 16, 2022 11:55 am
Ground fault :
The AC drive output is abnormal.
When the output terminal is grounded (short circuit current is 50% more than the AC drive rated current), the AC drive power module may be damaged.
The short circuit protection is provided for AC drive protection, not user protection.
Ground fault :
1. Check whether the IGBT power module is damaged.
2. Check for possible poor insulation at the output line.
