My apologies for the delay in updating fellas, I've been a bit under the weather and layed up with the flu then pneumonia. Just getting back up and stirring around again.
I'm not highly skilled with the workings of speed controllers but here's what I have so far. The treadmill is a Nordictrack exp1000. Turns out there is a problem with the current controls the speed was not working correctly, in fact when I first tried It I only ran it on the slowest speed and did not realize there was a problem. Now It will not work at all, but It does not have a potentiometer. It uses a electronic keypad overlay, and I believe that or the board up top that It plugs into is the only problem.
I ran some tests, first off, I put 18 volts straight to the motor, and got a few MPH worth of speed from It, so after figuring out the motor is good, I researched the controller, It's a MC-60 speed controller. Even though It uses the electronic keypad, It would seem that It is still a PWM controller, uses the same three wires just like one with a manual potentiometer, so I decided to test the controller by jumping the white and red wires on the speed controller board. Motor fires right up, and runs strong, so the good news is It looks like the controller is good. It seemed to want to go up to full power but I just touched the jumpers and did not let It wind up that high. Will test that more when I get a potentiometer to hook up to It.
I still need to work out some details but It should be usable. still need to get a 5k pot as I mentioned, and not yet sure if the motor can be reversed or not.
One other thing I need to work out is that there are actually 2 boards, the MC-60 which runs the motor, and another power board that runs the incline motor, and gets the signal from the digital panel. These boards are wired together so I need to figure out how to rewire in order to eliminate the power board. I found some info that shows running 110v straight into the speed board, so apparently this can be done. There is some kind of inverter or something that I need to wire into the mix. as well as a breaker and switch.
On The motor label is- P.M. D.C., 18.0 amps, 6700rpm, CW rotation, OPEN CONST., 1.5HP CONT. DUTY @ 95VDC but It also says 2.5HP on the label. There are four wires coming out of It, a red wire on one side black on the other and 2 blue wires side by side coming out of the middle.
Anyhow as I mentioned this is not a strong area as far as My knowledge being limited. I just started researching This, and I need to find some more info before I go taking any guesses on the rewiring but this is where I am at right now.
I appreciate all the info.
Greg