Delta VFD-L Series Drive
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May 16, 2022 12:49 pm
How can resolve problem ou fault in delta VFD-L series drive ?
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May 16, 2022 12:50 pm
The AC drive detects that the DC bus voltage has exceeded its maximum allowable
1. Check whether the input voltage falls within the rated AC drive input voltage.
2. Check for possible voltage transients.
3. Bus over-voltage may also be caused by motor regeneration. Either increase the decel time or add an optional braking resistor.
4. Check whether the required braking power is within the specified limits.
Check drive rectifier & IGBT using multimeter.
Check wiring.
Check drive hardware using multimeter.
