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Author Topic: Mitsumi M42SP-13NK stepper... 12 or 24VDC?  (Read 392 times)
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Hello all....

I have a salvaged Mitsumi M42SP-13NK stepper and have a pdf of the maker's datasheet.

Trouble is, the datasheet (see snippet below) indicates that there are both 12 and 24 VDC versions of this motor, yet there are no voltage indications on the motor itself.

Now, I don't need this motor to do anything other than run, to experiment with driving it, so I'm not fussed about torque, speed and so on. I have only a 12V supply. I'm guessing if it's a 24V version, and assuming it actually turns at 12V (I'm yet to test) then it's ok to use it like that at least for "demo" no-load purposes?

On the other hand, is there any way of telling if this is a 12 or 24V motor? (If I were to apply 24VDC (not that I have a source) and no smoke is released, for example, could I "deduce" it's a 24V one?)

(As an aside, the datasheet says 4.2 ohm coils; the sticker on mine, and my Fluke, both say 7.5)

* m42sp-13nk.JPG (61.96 KB, 706x348 - viewed 21 times.)
« Last Edit: March 18, 2013, 11:14:29 am by JimboZA » Logged

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