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DRV10983: Motor configuration file

na na78
Guru 16770 points
Part Number: DRV10983

Hi

We can not refer configuration file for Runtian motor and teleconotion motor.

According to user guide of EVM, these files should be located in GUI software folder but not found.

How to obtain configuration files for two motor from official web site, or latest software tool?

BestRegards

  • 0
    TI__Intellectual 770 points

    Please skip 5. out-of-the Box Quick Start Guide  step 10, 11, 12, 13, 14, 15 first

    Please reference Tuning Guide http://www.ti.com/lit/pdf/slou395 to evaluate the motor you have in hand.

    Please do feedback to us you if have any questions after following tuning guide. Thank you.

    Thanks again

    Janet

  • 0 in reply to Janet Yi
    Guru 16770 points
    Hi Janet

    Thank you for your reply.

    According to step 10, Runtian EVM motor and Telcomotion EVM motor are introduced.
    We have these motor, so we want to configure them.

    Configuration files to be loaded to device should be located in GUI install folder, but we can not see them.

    Is the user guide old?
    (I'm referring SLOU393C–July 2014–Revised January 2015)

    Where should we obtain these configuration files?

    BestRegards
  • 0 in reply to na na78
    TI__Mastermind 18900 points

    Hello na na78,

    Sorry for the mix up. Yes, SLOU393C–July 2014–Revised January 2015, is the most up to date version of this document. In fact, any pdf you get off ti.com is the most recent version of that document.

    With that said, we have stopped giving out a configuration file for that motor. This is for a lot of reasons but, most importantly, there are a lot ways to tune a motor (fast start, gradual start up, efficiency tuning, etc.). As a result, we'll make sure that document gets changed so it no longer refers to a configuration file. Thank you for pointing it out to us.

    I've provided some generic settings below that will help get the device spinning at least--just change these settings in the GUI. This requires a little more work from you to get it working: namely obtaining the Phase Resistance (Rm) and Motor Torque Velocity Constant (Kt) which is unique to every motor.

    For phase resistance, take a digital multimeter and probe the resistance between two of any of the phases. You are technically measuring the phase to phase resistance so divide by 2 to get the phase resistance. You will need to type this into the GUI later.

    For the Motor Torque Constant, take your motor and manually spin it with your fingers when the driver is turned off. In addition, probe any of the phase voltages in reference to ground. You should see an induced sinusoidal type voltage waveform (known as the Back EMF) appear on the oscilloscope. Then measure the voltage of the waveform, peak to peak, and the frequency of the waveform. Then, using the equation below, you should be able to find Kt.

    Kt = (V_pk-pk/2)*(1/f_BEMF)

    Both of these methods are described in the Tuning Guide Janet was talking about. Please take a look if you want more information to tune the motor.

     


     

    Hope this helps,

    -Cole