Stepper motor with 4 wires?

[jsimpson001]

Ok, I've looked at the manual, but it indicates that a stepper motor should have 5 wires, not 4, like this one i pulled out of a vcr.

The colours are:

Red, White, Blue/Yellow, Yellow

I am assuming that the red is +12v?

 

[Andrew Cowan]

Each pair should control an electroagnet.

I'm not quite sure how it works, but I drove a motor recently using:
Pair 1: 12V
Pair 2: -12v
wait 1
Pair 1: -12V
Pair 2: 12V
wait 1
repeat cycle.

Try this, and experiment with the wires.

Andrew

 

[eclectic]

JS/AC

Here are two reference sites, which I've just found from searching this forum.

The Jones guide looks like essential reading for potential students.


http://www.cs.uiowa.edu/~jones/step/types.html

http://www.linengineering.com/line/contents/stepmotors/Wiring_Connections.aspx

e.

 

[manuka]

Steppers can have 4,5,6 or 8 wires -use a DMM on Ohms to verify coil pairs. www.picaxe.orconhosting.net.nz/stepdemo.jpg shows insights & code developed for a very low power 4 wire.

N.B. Most larger steppers are power hogs & significant control electronics will be needed.