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IndustryArena Forum > MetalWorking Machines > Tormach Personal CNC Mill > just installed teh new motor drive, but??

Thread: just installed teh new motor drive, but??

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  1. 02-07-2009, 01:46 AM #1
    johnh
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    just installed teh new motor drive, but??

    The spindle rotation is backwards now per the m3 m4 functions.

    double checked wiring, can't find anything there.

    is there a tweak I'm unaware of?

    thanks, john h
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  2. 02-07-2009, 01:55 AM #2
    zephyr9900
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    John, since the spindle motor is 3-phase, you should be able to just swap any two of its leads going to the VFD to change the direction of rotation.

    Randy
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  3. 02-07-2009, 02:42 AM #3
    johnh
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    thanks for the easy fix, worked like a charm!!!


    john h
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  4. 02-07-2009, 05:13 AM #4
    zephyr9900
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    You're welcome, John. Just for trivia, you can also change the rotation of a stepper motor by swapping the leads of one of its two coils...

    Randy
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