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Speed & abnormal high current - DRV10983

user3613184
Prodigy 20 points
Other Parts Discussed in Thread: DRV10983

I connected the DRV10983 board to USBANY and spent some time tuning it with a HDD Spindle motor.

No matter how I tried I could get the speed beyong 1400rpm. At 12V, the no load current was 0.6A.

Something I missed or any recommendations?

Thank You

  • 0
    TI__Guru** 114905 points
    We will contact our experts on the device and have them comment.

    Can you provide additional information such as the data collected during the tuning operation and the settings used?
  • 0 in reply to Rick Duncan
    TI__Expert 8885 points

    Hello,

    Can you help with below data.

    1.         Motor resistance phase to center tap

    2.         Velocity constant; V/Hz

    3.         Rated voltage sped of motor and rated speed and rated current at this voltage

    4.         Number of pole

    5.         DRV10983 GUI basic & advance page setting, chosen by you

     

    Best Regards

    Milan

  • 0 in reply to Milan Rajne
    Prodigy 20 points

    Hi,

    No matter how I configure the max speed still below 2840rpm
    Motor resistance phase to center tap: 2.9ohm
    Velocity constant; V/Hz: 130
    Rated voltage sped of motor and rated speed and rated current at this voltage: 12V, 0.6A
    Number of pole: 8

  • 0 in reply to user3613184
    TI__Expert 8885 points

    Hello,

    Can you clarify about velocity constant units? 130V/Hz means to run motor 1Hz ~15rpm , 130V is required, this does not make any sense. Also, if I assume it as 0.130V/Hz, means at 12V motor will reach at 92.3Hz ~1384rpm only.

    Best Regards

    Milan- Motor Application Team