please dont rip this site

Stepper Motor Wiring to a Driver

By trial and error

Also see: other methods if figuring out stepper motor wiring

ALWAYS power down the driver before connecting or disconnecting a motor wire. Failure to do so will very probably fry the driver

For most common 5-wire unipolar motors;

  1. find common "centre tap" using an ohmmeter the resistance between the center and any leg of that coil is 1/2 that from leg to leg. Measuring from one coil to the other will show an open circuit, since the 2 coils are not connected.
  2. common goes to M+ power
  3. other 4 wires are the phases

With 6-wire unipolar motors;

  1. find the 2 common wires
  2. connect these together
  3. connect commons to M+ power
  4. other 4 wires are the phases

Hook up the controller A+, A-, B+, and B- terminals to the phase leads (guess at the phases) and try to step slowly.

If the motor does not turn, try swapping one A wire with one B wire, you may have connected the motor phasing wrong. If you have the phasing wrong, the motor will tend to sit there and "wobble" or "buzz".

If the motor turns, but in the wrong direction, you only need to swap the two A wires with each other.


Motor wiring diagrams (for reference)


file: /Techref/io/stepper/wiresdriver.htm, 3KB, , updated: 2011/2/25 16:31, local time: 2023/12/3 02:00,

 ©2023 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF=""> Stepper Motor wiring to a driver</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.

Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?


Welcome to!


Welcome to!