Re: DC Treadmill motor HELP!
Jumps4,
I don't have a bonifide schematic, per say. I found a reverse engineered hand drawn schematic on the web. I do have a couple of pictures, though,
http://i571.photobucket.com/albums/ss157/chucketn/MC-60 motor controller/spare2.jpg
I just observed what went to where when I stripped out the treadmill.
The black and white wires are the AC input. On my mill, I used the power cord and circuit breaker from the donor treadmill, with some of the other wires to connect them. I mounted the circuit breaker in an aluminum panel to mount on my lathe. The red and black are to the motor via a double pole double throw toggle switch for reverse if needed (did not use on the mill). At the bottom of the picture are the 3 terminals for the 5k pot. H= high, W=wiper, L=low. Connect the wiper of the pot to W, One end of the pot resistance to H and the other to L. On a pot, the center lead of the 3 is the wiper. That is where jster1963 went wrong. He had the wiper connected to H IIRC. If the speed pot seems to work in reverse to convention, Clockwise slower, ccw faster, reverse the H and L connections.
I just took the spare controller back to the cold garage, but I can bring it back and take more pictures if necessary.
Some folks have even re-used the slider control from the donor treadmill console to control the speed.
Notice the white connector on the red and black wires. Same connector used in older computers for hard drives and CD-Rom power connectors. The motor from one treadmill just happened to have that connector on it.
What application are you going to ues your controller/motor for?
Any other questions, don't hesitate to ask.
Chuck