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Lun fault in delta VFD-VE series drive

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Posts: 18454
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(@click2electro)
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Joined: 4 years ago

How can resolve problem Lun fault in delta VFD-VE series drive ?

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Posts: 18454
Admin
Topic starter
(@click2electro)
Member
Joined: 4 years ago

DC BUS voltage is less than Pr.06-00 in constant speed

1. Check if the input voltage is normal
2. Check for possible sudden load

Check drive rectifier & IGBT using multimeter.
Check wiring.
Check drive hardware using multimeter.
Check drive hardware.

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