Mitsumi m42sp-7

Hello all,

This stepper motor has only 4 wires, when from what I have seen I should expect four. I guess the four wires would be for each phase, but where does the common go?

If anyone has any ideas I would like to hear them!

Thanks

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Johnny
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Comments

  • 7 Comments sorted by Votes Date Added
  • Chris SavageChris Savage Parallax Engineering
    edited February 2005 Posts: 0Vote Up0Vote Down
    That would appear to be 2-phase bi-polar...See attached pic.



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    Chris Savage
    Engineering Tech, Parallax Inc.
    (916) 624-8333 x3005
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  • edited February 2005 Posts: 96Vote Up0Vote Down
    When I check out the specs on the motor (http://www.mitsumi.co.jp/Catalog/compo/motor/m42sp/7/text01e.pdf) it says the Excitation Method is 2-2 Phase excitation (Unipolar driving).

    I really don't know a whole lot about these but to me that says its a unipolar, please correct me if I am wrong. I'm hoping its unipolar [noparse]:)[/noparse]

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    Johnny
  • Chris SavageChris Savage Parallax Engineering
    edited February 2005 Posts: 0Vote Up0Vote Down
    Hmmm, dunno then.· That was the best I could find.· Did you scour the GOOGLE results?· wink.gif

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    --==<{Chris}>==--
    Chris Savage
    Engineering Tech, Parallax Inc.
    (916) 624-8333 x3005
    Website / Twitter / Google+
  • edited February 2005 Posts: 96Vote Up0Vote Down
    while doing some googling, I found this: http://info.hobbyengineering.com/specs/PX-27964.pdf

    Its a pdf originally from Parallax describing how to control one of these motors, All that is fine, I just dont understand where "10 Brown" actually connects to the motor, from what I can see there is no connection available for it on the motor, unless it just goes to the case of the motor? Is that posssible? Can you distinctly see four wires coming from the motor depicted in that image? I thought I did but sometimes my vision decives me.

    Anyway, let me know what ya think.

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    Johnny
  • edited February 2005 Posts: 96Vote Up0Vote Down
    Yeah well after a bunch of research this must be a bi-polar motor, appologies for challenging your knowledge Chris! Now I know it requires more hardware to opperate a bi-polar, and I'm all setup to operate a unipolar. Need to disect some more printers etc lol

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    Johnny
  • Chris SavageChris Savage Parallax Engineering
    edited February 2005 Posts: 0Vote Up0Vote Down
    No need to be sorry.· Good luck on your experimenting!



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    --==<{Chris}>==--
    Chris Savage
    Engineering Tech, Parallax Inc.
    (916) 624-8333 x3005
    Website / Twitter / Google+
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