Delta VFD-EL-W Series Drive
2
Posts
1
Users
0
Reactions
570
Views
May 04, 2022 7:11 am
How can resolve problem ov Over voltage fault in delta VFD EL-W series drive ?
1 Reply
May 04, 2022 7:11 am
Over-voltage
The DC bus voltage exceeds its maximum allowable value.
1. Check if the input voltage is in the rated AC motor
drive input voltage range.
2. Check for possible voltage transients.
3. DC bus over-voltage may also be caused by motor
regeneration. Either increase the Deceleration Time
or add an optional brake resistor (and brake unit).