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Is it necessary to setup the Vref for DRV8825 and nema motors?

2024-11-20
2024-11-20
  • Julio Hornos

    Julio Hornos - 2024-11-20

    I am using the PBC DRVBRD_DRV8825 v103 with the Nema motor 14HM11-0404S.
    I have read in different places that it is necessary to adjust the Vref to limit the maximum current to the Nema motor. In my case, the motor accepts 0,4 A per phase.
    For DRV8825 the Vref=Curren_limit/2
    For my motor Vref=0,4/2=0,2 V
    Are any of you doing that? I can't see any reference in myRotator user guide

    Thanks

     

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