What type of stepper motor is this?

Discussion in 'General Electronics Chat' started by crazybuoy, Nov 22, 2015.

  1. crazybuoy

    Thread Starter Active Member

    Sep 19, 2010
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    0
    I have a stepper motor with five wires, I have recognized four winding wires. But the fifth wire does not show any reading on multi-meter with any wire. The fifth wire is only attached to motor body. I would like to ask:

    What is the purpose of 5th wire?
    How to use 5th wire?
    Is it bipolar stepper motor?
     
  2. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
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    Clearly a shield (ground) conductor...

    'Tis Likely:)

    Best regards
    HP
     
  3. PeterCoxSmith

    Member

    Feb 23, 2015
    148
    38
    This is a useful reference document.
    https://learn.adafruit.com/downloads/pdf/all-about-stepper-motors.pdf
    See page 12, there is a type of unipolar motor winding with 5 leads, but a buzz through of the wires should tell you if this is the type of motor you have.

    If fifth wire goes to case, it may be a shield.
     
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  4. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
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    The echoes!!!:D:D:D
     
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  5. PeterCoxSmith

    Member

    Feb 23, 2015
    148
    38
    ...more echoes...
     
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  6. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
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    Yebut -- The OP states that the 'filth lead' shows no continuity to the others -- my guess is he's got hold of a four lead 'bipolar' equipped with a ground/shield lead --- My $.02 and worth about as much:oops::cool:

    Best regards
    HP:)
     
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