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DRV8301-69M-KIT: DRV830x-HC-C2-KIT Issue

Ram babu
Intellectual 260 points

Part Number: DRV8301-69M-KIT

Hello There,

I am running DRV830x-HC-C2-KIT with INSTASPIN-FOC GUI

IN the GUI when we click on "Identify the motor parameter" button, then GUI is showing DRV fault status  RED and Reset DRV fault is not working.

I have set the "Motor identification Parameter" as following:

  • Res Est current (A) : 4.5
  • Ind Est current (A) : -4.5
  • Estimate Freq (Hz) : 20
  • Motor Pole pair ; 21
  • Motor max current(A): 45
  • Motor max freq (Hz) : 1500

BLDC motor parameter :-

  • Max voltage (volt) ; 12S
  • Max current (Amp); 68.6
  • Max RPM: 4123
  • Poles :42

Kindly suggest me what could be the issue and how to resolve it?

  • 0
    TI__Guru** 117220 points

    Any load is adding on the motor when you run the motor identification? You may try to tune the identification variables as below.

    #define USER_MOTOR_RES_EST_CURRENT      (1.0)                               // A -  10-30% of rated current of the motor

    #define USER_MOTOR_IND_EST_CURRENT      (-1.0)                             // A -  10-30% of rated current of the motor,  just enough to enable rotation

    #define USER_MOTOR_MAX_CURRENT            (5.0)                               // A -  30~150%  of rated current of the motor

    #define USER_MOTOR_FLUX_EST_FREQ_Hz     (40.0)                            // Hz - 10~30% rated frequency of the motor

    It's better to follow the lab user's to run the lab02c within CCS, not using the GUI since the motor you used look like a low inductance high speed motor that is not suitable for using the GUI.