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Original question:

DRV8353RS-EVM: For DRV8353RS-EVM, what causes an automatic stoppage of the motor?

DRV8353RS-EVM: Our motor has been able to run, but the FAULT LED becomes active once the driver gathers torque and starts moving

Robert Uehara
Prodigy 30 points
Part Number: DRV8353RS-EVM

Tool/software:

Hi,

When we get the motor spinning, we are able to accelerate fine, but the FAULT LED is now lit up. Reading the registers during spinning results in none of Fault Status & VGS Status 2 registers having a flag.

  • 0
    TI__Genius 12231 points

    Hi Robert, 

    Thank you for your question. 

    Can you provide the register values read before and after this fault occurs?

    What are the system parameters used in this test? (supply voltage, max motor current, motor speed/power draw, pwm freq)? And can we also measure the motor phase output voltages and currents when this fault triggers to better understand what happens during this occurrence?

    Best Regards,

    -Joshua