I am very appreciative of all the comments provided. This has certainly given me many ideas for solving the problem and will be checking these items out on this drive. I have one other confusing input into this issue.
The contractor has installed a second of these panels in a location...
The VFD to Motor cable is a 3 conductor w/o ground and non-shielded. I do not believe the motor cable is in a metal conduit. It is not armored and not shielded. The conductors are exposed for approximately 8 - 10 inches once it enters the enclosure before it enters the drive. The motor is...
I will attempt to state my situation as simply as possible. I am having an RS-485 communication problem when my VFD driven motor is started.
My power supply is a 3ph, 480V generator feeding a pump control panel which is driven by a C-H VFD. My communication link is an operator interface...
