Delta VFD-EL Series Drive
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May 04, 2022 6:17 am
How can resolve problem Lv Low voltage fault in delta VFD EL series drive ?
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May 04, 2022 6:17 am
Low voltage
The AC motor drive detects that the DC bus voltage has fallen below its minimum value.
1. Check whether the input voltage falls within the AC
motor drive rated input voltage range.
2. Check for abnormal load in motor.
3. Check for correct wiring of input power to R-S-T (for 3-
phase models) without phase loss.
Check drive rectifier & IGBT using multimeter.
Check wiring.
Check drive hardware using multimeter.
