This is what I was thinking, or the wiring to the motor. This leg of the drive system has not worked since I started with the company. First the Drive would fault on Armature Over current. Then they removed the motors to replace two failed motors on the other three legs. We just got those motors...
The machine is a rail crane with 4 legs moving a crane on rails. It has two motor per leg.
I thought that they were moving slower and we're generating on that leg, so I uncoupled the motors from the wheels and the reduction gears are free Wheeling.
There are 4 drives, 1 per leg. Each drive has...
This is interesting, but why would it only happen on one motor set? If I power the other three of the four it doesn't happen. Only when I power this one. If I switch the leads and power this motor set with the other drives it happens on that drive, too.
A friend of mine said I might have my...
Hello,
I have an issue where I have a set of DC motors that are causing my line voltage to increase. I don't have a meter that can test it, but two of my AB PF 700 show DC bus voltage climbing and steadying at 780 V. One of them, a frame 2 trips on over voltage when I run this set.
I have 4 of...
