1 Topic by fabledkebab

  • fabledkebab
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  • Registered: 2019-09-12
  • Posts: 1

Topic: Stepper motor wire color meaning?

Hi, I am researching DaVinci Jr for replacing the original board with RAMPS or some other board (IDK really what board is the best).
So, I removed the lid and then I saw that the stepper motor wires have 4 different colors (red, blue, yellow, white).
Can someone tell me the meaning of each color?

2 Reply by Tin Falcon

  • Tin Falcon
  • Tin Falcon
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  • From: New Jersey, USA
  • Registered: 2014-08-01
  • Posts: 2,424

Re: Stepper motor wire color meaning?

I would not rely on wire color you need to ohm out the wires to sort the pairs.
There is no color standard and even the labels on spec sheets vary.
the best thing you can do is get a spec sheet.  try googling the motor info.



Typicaly you will have a+ a- b+ b-

there may be labeling on the board as well.
sometimes techs need to be investigators.


as far as boards avoid cheap offshore imports these are the boards that case fires. either go USA built Europe import or at least a reliable importer.

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