Delta VFD-VJ Series Drive
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Apr 21, 2022 5:34 am
How can resolve problem ovn DC BUS over-voltage at constant speed fault in delta VJ series Drive ?
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Apr 21, 2022 5:34 am
Cause : DC BUS over-voltage at constant speed.
1. Check if the input voltage is within the
range of voltage rating of Hybrid
Servo Drive and monitor for any
occurrence of surge voltage.
2. The issue can be resolved by
adjusting the software brake action
level in Pr.02-00.
3. When such error occurred at the
beginning, during or at the end of the
pressure/ flow command, adjust
Pr00-29 ~Pr0032 <Ramp up/down
rate of pressure/ flow command> or
Pr00-46 ~Pr00-49 <Pressure/ flow
reference S1/S2 time>
