HY = hybrid stepper low inertia
200 = steps/rev
34 = frame size 3.4"
50 = length 5"
700 = winding phase current 7A
A = single shaft
8 = number of leads
I have the same motors. They do have 8 leads but they are slpiced into 4 within the first foot of cable from the motors. My 4 wire motor leads from the inside of the cabinet mounted amphenol connector are as follows-
Black.......A
White......A-
Green......B
Red.........B-
Here's a diagram I found that might help with wiring configurations-
http://home.earthlink.net/~riverpira...ireDiagram.jpg
As Brian mentioned earlier these motors are power hogs. When I first ran mine at anything more than a few inches per minute they tripped the drives (not sure if the 201's will trip or just blow). I could power down and repower to reset them. I ended up adding 270k current set resistors which limited my 203v's output to six amps. This solved the tripping problem and the motors will fly now. I'm sure I lost some torque but on the few projects I have run so far I haven't noticed it, nor has it seemed to have missed any steps yet. When I'm running something dimensionally critical I usually run pretty slow anyway.