I had to turn around and head back to work after I read your message about tapping the motor but sadly, nothing.
After throwing the oscilloscope on the motor side of the FWD/REV contactor cables, then confirming the same thing up on the power TB below the EV-1, I'm convinced there is an issue with the card or an input that I just can't see. A good chunk of the the troubleshooting steps shown in the EV-1 manual are not as they say they should be... mind you I don't have VOM. If I had a way to bench test the EV-1, I'd rock it down to the component level but info isn't exactly spewing out.
Key on, I get 36 volts on one side of REC1 and 18 volts on the other. I'm not sure what is normal.
With the oscilloscope and a power analyzer, I tried reading all of the terminals on the power terminal block as well as the cables on the contactors and could not get any pulse-width readings.
Now, the FWD/REV contactors are needing a bit of help from my foot to get pulled in. I think this machine may be just too tired... or maybe I am. I don' know. Do you have any other ideas of what I should try before I call it quits?
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