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DRV10983: How to configure DRV10983 to make motor torque strength up ?

Jossun chou
Prodigy 120 points
Part Number: DRV10983
Other Parts Discussed in Thread: MSP430G2553

Hello,TI-E2E Community:

I use DRV10983 IC to drive BLDC Motor recently for work, The motor is success to active.

but the torque strength is not enough when the motor with load.

It cause the motor stucks sometimes.

How to configure DRV10983 to make motor torque strength up ?

I use MSP430G2553 to connect to DRV10983 ,

G2553 sent PWM to DRV10983 to adjust the motor speed by PWM duty

I adjust the speed up, the torque strength is still not enough.

The motor is work for 24V, 2A, 1000rpm.

Please give some advise foe it, thanks!

  • 0
    TI__Intellectual 2600 points
    Jossun,

    Have you optimized the t control setting? If you don't have the bemf and the phase current aligned the drive strength will be less.

    If you've done that can you share phase U voltage and current right before the failure and at the failure?

    Thanks,
    Brian
  • 0 in reply to Brian Schmidt
    Prodigy 120 points
    Yes,I have optimize the control setting in DRV10983 EEPROM,Here arethe setting:
    0x20: 0x4D
    0x21: 0x0A
    0x22: 0x2A
    0x23: 0x00
    0x24: 0x80
    0x25: 0xFD
    0x26: 0x8B
    0x27: 0xB0
    0x28: 0xDC
    0x29: 0xD7
    0x2A: 0x0D
    0x2B: 0x0E
    sometime the motor will stuck,and the fault code 0x1E is 0x02 or 0x04
    It is Speed abnormal,or kt abnormal, How to fix the error?
  • 0 in reply to Jossun chou
    TI__Intellectual 2600 points

    Jossun,

    Sorry for the delay. When I get abnormal kt fault I look at optimizing t control for the motor. I do this by first making sure that I have programmed the correct value of Kt. Then I look at the display tab and monitor the Motor Velocity Constant that is calculated inside of DRV10983. This value should be very similar to the programmed value. If it isn't I adjust t control until they are close to the same.

    Thanks,

    Brian