Ground fault on AC Tech SC450 Drive
Ground fault on AC Tech SC450 Drive
(OP)
Hello,
We are currently using a AC Tech SF450 VFD to drive a 5HP conveyor brush motor. We have been having recurring "UF" faults that basically renders the drives useless. A quick troubleshot suggests the fault is a result of a ground fault. Any thoughts on avoiding ground faults on a VFD Drive? Should we be using a different drive? One that has an inbuilt ground fault protection? Please advice.
We are currently using a AC Tech SF450 VFD to drive a 5HP conveyor brush motor. We have been having recurring "UF" faults that basically renders the drives useless. A quick troubleshot suggests the fault is a result of a ground fault. Any thoughts on avoiding ground faults on a VFD Drive? Should we be using a different drive? One that has an inbuilt ground fault protection? Please advice.
RE: Ground fault on AC Tech SC450 Drive
On that VFD, the "UF" fault code simply means you are giving the drive a Run command before the drive has finished powering up. You must wait at least 2 seconds after applying power to give the VFD a Run command. Some brands of drives allow you to close the Run command prior to applying power, this is not one of those.
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RE: Ground fault on AC Tech SC450 Drive
RE: Ground fault on AC Tech SC450 Drive
Do not power up the drive with the run command active.
Bill
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