Delta MH300 Series Drive
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Apr 28, 2022 4:56 am
How can resolve problem GFF Ground fault fault in delta MH300 drive ?
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Apr 28, 2022 4:57 am
Ground fault (GFF)
When the drive detects grounding short circuit on the output terminals (U/V/W), the drive closes the gate of the output immediately, the motor runs freely, and the display shows a GFF error.
Check earthing and check drive IGBT using multimeter.
