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Can 4 pole Induction Motor be reversed

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  • Can 4 pole Induction Motor be reversed

    As title says can this AC treadmill motor be reversed. Click image for larger version

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  • #2
    How many leads come out of the motor?
    If only three, you may have a problem, you need to see four to make it easy.
    Often T.M. motors like this are made uni-directional, they not only require one direction, but frequently the Flywheel is threaded on, this is why you often see one direction specified on the DC motor, because of the threaded flywheel.
    Max.

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    • #3
      I think the issue is not how many poles it has, but what is the starting mechanism, and how accessible is it - i.e., what sort of start windings does it have, and can you easily get at them. A photo of the connections under the end cap might help.
      "A machinist's (WHAP!) best friend (WHAP! WHAP!) is his hammer. (WHAP!)" - Fred Tanner, foreman, Lunenburg Foundry and Engineering machine shop, circa 1979

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      • #4
        Originally posted by MaxHeadRoom View Post
        How many leads come out of the motor?
        If only three, you may have a problem, you need to see four to make it easy.
        Often T.M. motors like this are made uni-directional, they not only require one direction, but frequently the Flywheel is threaded on, this is why you often see one direction specified on the DC motor, because of the threaded flywheel.
        Max.

        Only 2 wires coming from motor,this one is Variable Speed by pulley set up so assuming out of luck with changing motor rotation.

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        • #5
          Originally posted by Tundra Twin Track View Post


          Only 2 wires coming from motor,this one is Variable Speed by pulley set up so assuming out of luck with changing motor rotation.
          Is this apart from the capacitor lead that goes to the motor?
          Sounds like the common for each winding connection is in the motor.
          If made for this particular T.M., there is no reason for reverse.
          Max

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          • #6
            Some motors, like shaded pole motors only run one way. The only way to reverse them is to disassemble and mount the shaft out the other end. There are also some motors with a very low impedance starting winding with a centrifugal switch that don't use a starting capacitor. These motors sometimes have only 3 wires with the other wire of the start winding connected to the center of the main windings. this way you just connect the third wire to one or the other power lead to reverse. Turning the stator around doesn't work on all motors because sometimes the rotor is not centered on the shaft.
            Helder Ferreira
            Setubal, Portugal

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            • #7
              Thanks Guys yes it’s a TM specific motor,did not dig any deeper not sure where the 2 black wires come from.It does have the starting thing that you can hear It engage when power is shut off on end opposite of pto .

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