Stepper motor wiring

[binfordw]

I'm in the process of wiring a control box for my new X3 mill setup, and am unsure how to wire the 23 and 34 stepper motors, they are 8 wire motors.

I found the spec diagrams for the motors, but it shows 4 different methods, and Im not exactly sure which I will be using, normal/unlisted, bipolar parallel, bipolar series and unipolar.

These are the spec sheets for the motors

http://www.kelinginc.net/KL23H286-20-8B.pdf

http://www.kelinginc.net/KL34H295-43-8B.pdf


Thanks

[John Stevenson]

Top right hand corner diagram on both sheets.

[Joel R]

Check on the current your stepper driver circuit can handle. This may very well be your limiting factor as to which you decide on.

The three ways (normal/unlisted isn't a method) you can wire them each have their advantages; in brief:

Unipolar: Lower power than bipolar, but allows for simpler controller. Most modern stepper drivers will handle bipolar, so moving on...
Bipolar Series: Good initial torque, lower current requirement than parallel
Bipolar Parallel: Same initial torque as bipolar series, less torque degradation with speed (via lower inductance, allowing machine to run faster), requires highest current


Most things I've read suggest wiring in bipolar parallel if you stepper driver can support the amperage (agreeing with John on this one, top right corner).

[tumutbound]

What stepper controller(s) are you using?