Delta VFD-ED Series Drive
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Jun 04, 2022 11:16 am
How can resolve problem ovn fault in delta VFD-ED series drive ?
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Jun 04, 2022 11:16 am
DC bus over-voltage at constant speed
230V: 405 VDC ; 460V: 810 VDC
corrective action
1. Check if the input voltage falls in the rated AC motor drive input voltage range.
2. Check for possible voltage transients.
3. If DC bus over-voltage due to regenerative voltage, increase the Deceleration Time or add an optional brake resistor.
