All three panels are controlled by one ControlLogix L71 processor with remote ControlNet racks in Panel-02 and Panel-03. The Drives are currently in Panel-03 and we are moving them to Panel-01. I just have to add an extra output card to the existing rack in Panel-01 and modify the PLC code...
After physically visit site and measuring the run I found that it is longer than 700 feet. The route of the conduit was absolutely ridiculous and unnecessary. We have opted to move the drive to a closer panel and run new pipe and pull new wires and add a bit of extra IO. This will get us down to...
I should add that after further inspection, I have found that the distance between the drive and the motor is closer to 460 feet. The electricians routed the conduit around existing structures to make installation easier and in doing so added much extra length to the wires.
When testing for...
Three months ago I commissioned A conveyor system and since we have gone through 3 VFDs on the same two motors. It is important to note that these motors are the furthest from the VFDs in the entire system (about 340 feet). Onsite maintenance has installed a load reactor to solve the problem and...
