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  1. #1
    Join Date
    Feb 2006
    Posts
    24

    Unhappy Stepper motor spec?

    I have MAE stepper motor HY200-2240-290 and cant find any specs
    it sais 2.9A per phase 1.6 ohm, how do i find voltage, can i use any voltage within reason as long as amps are adhered to?

  2. #2
    Join Date
    Mar 2003
    Posts
    35494
    Voltage = amps x ohms, or 4.64Volts. For best performance run them at 10-20 times the rated voltage, or 48V -90V. Provided your drives can handle the voltage. And yes, do not exceed the rated current.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

  3. #3
    Join Date
    Feb 2006
    Posts
    24
    thanks gerry
    i knew it was something simple...
    whats the point in supplying such outrageously higher voltage than motor spec?

  4. #4
    Join Date
    Mar 2003
    Posts
    35494
    Torque drops off rapidly as rpm's increase. Increasing the voltage lets the current flow through the motor faster, maintaining more torque as rpm's increase. Generally, useable speed is proportional to voltage. If you double the voltage, you can roughly double the useable rpm you'll get out of the motor.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

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