silva.foxx
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"Motor (VFD) Testing Tip
With the increase in use of Variable Frequency Drives (VFD's), and increased machine uptime expectations it helps to have a few tricks in the tool box. When confronted with a faulted drive, make your usual visual inspection for obvious defects to the associated equipment if nothing is notable is found disconnect the motor leads from the drive, reset the fault and enable the drive, if the fault reappears with no load the the drive needs to be repaired/ replaced. If the drive ramps up normally then the problem is with the motor or wire run, with the wires disconnected at the drive the drop can be tested quickly. If the drop shows good replace the motor. I have had 100% success with this method."
Is this a good troubleshooting tip?
Will the drive fault without the load connected?
Any views or tips on this?
"Motor (VFD) Testing Tip
With the increase in use of Variable Frequency Drives (VFD's), and increased machine uptime expectations it helps to have a few tricks in the tool box. When confronted with a faulted drive, make your usual visual inspection for obvious defects to the associated equipment if nothing is notable is found disconnect the motor leads from the drive, reset the fault and enable the drive, if the fault reappears with no load the the drive needs to be repaired/ replaced. If the drive ramps up normally then the problem is with the motor or wire run, with the wires disconnected at the drive the drop can be tested quickly. If the drop shows good replace the motor. I have had 100% success with this method."
Is this a good troubleshooting tip?
Will the drive fault without the load connected?
Any views or tips on this?