Fuses Blowing on VFD

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iaov

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Rhinelander WI
Actually, the fuses do not prevent any of these items from occurring. The fuses limit additional damage to the drive, after a fault happens. Usually the fuses are there to remove a faulted drive from the 'power grid', and to prevent it from failing 'violently'.
Exactly! The fault parameters are programable in the Power Flex drives. If your fuses on the input are opening you may very well have a bad drive.
 
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