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How to set stepper current on PRO V-3 controller?

Discussion in 'CNC Mills/Routers' started by F Kaylor, Jun 9, 2019.

  1. F Kaylor

    F Kaylor New
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    Check my thinking here: Using the ProV3 controller, NEMA 23 steppers and 24VDC power supply. Stepper Motor data says the rated current/phase is 2.8A and the resistance/phase is .9 ohms. The resultant voltage (I X R =E) is 2.52volts. So do I adjust the trim pot to approximately that voltage to achieve the rated current to the stepper motor?
    Thanks!
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    As the XPRO only has 2.5A Max drivers, which suffer thermal issues around 2.1A already, best to adjust to 'not running so hot it cuts out' and install a fan blowing on the board. You wont get optimal torque with this setup, but should be good enough for most uses except really heavy use cases
     
  3. F Kaylor

    F Kaylor New
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    Thanks Peter. I do have a fan directly on the drivers. But how do I set it to 'not running so hot it cuts out"? Since it seems to me that this would be a trial and error method...the trial might be OK but the Error might result in a burned out driver...
    FK
     
  4. sharmstr

    sharmstr OpenBuilds Team
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  5. F Kaylor

    F Kaylor New
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    Ah...the "Official Way" Followed the link...thanks...and that is just what I was lookin for!
    Thanks
    Frank
     
    sharmstr likes this.

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