Delta VFD-VJ Series Drive
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Apr 21, 2022 5:38 am
How can resolve problem Lvd DC bus voltage is lower fault in delta VJ series Drive ?
1 Reply
Apr 21, 2022 5:39 am
Cause : DC bus voltage is lower than the setting in Pr02-07 during deceleration.
1. Check if the voltage of input power is
normal.
2. Check if there is any sudden heavy
load.
3. Adjust the low voltage level in
Pr02-07.
4. Lvn often occurs when the motor
drive has a power failure while the
operating signals are still being sent.
