SLVUCL3 December   2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Cautions and Warnings
  4. 2Introduction
  5. 3Quick Start Guide
  6. 4Hardware and Software Overview
    1. 4.1 Hardware Connections Overview – DRV8317HEVM + LAUNCHXL-F280049C
    2. 4.2 Connection Details
    3. 4.3 LED Lights
    4. 4.4 DRV8317HEVM Configurability – Jumpers and Resistors
      1. 4.4.1 DRV8317H Compatibility
      2. 4.4.2 DRV8317S Compatibility
      3. 4.4.3 MCU Power Options
      4. 4.4.4 Interfacing DRV8317HEVM and LAUNCHXL-F280049C LaunchPad
  7. 5Hardware Setup
  8. 6Firmware and GUI Application
    1. 6.1 C2000 InstaSPIN Universal GUI
    2. 6.2 Motor Identification
    3. 6.3 Sensorless-FOC Commutation
    4. 6.4 Torque Control, Speed Control, and Advanced Modulation Techniques
    5. 6.5 SPI Communication (DRV8317S only)
  9. 7Schematics
    1. 7.1 Main Supply
    2. 7.2 DRV8317H/S
    3. 7.3 3.3V Buck Regulator and VREF
    4. 7.4 26
    5. 7.5 LaunchPad Connections
    6. 7.6 Connectors & Interface
    7. 7.7 Status LEDs, Voltage Sense, and Protection
  10. 8Revision History

Motor Identification

  1. Check the “Enable System” box to enable the InstaSPIN algorithm and run preset calibrations. Wait for the “OffsetCalc” button to uncheck automatically to finish calibrating board offsets.

  2. Check the “Run” box to begin the motor identification algorithm as shown in Figure 6-2. The motor will begin to spin and stop as it goes through many states to calculate and identify useful motor parameters for sensorless Field-oriented control. This should take no more than a few minutes.

  3. Once the motor identification process is complete, the “Motor Identified” indicator will light up, the “Run” box will be automatically unchecked, and the values Rs, Rs Online, Ls-d, Ls-q, Flux, and Rr will update for that motor as shown in Figure 6-3. These values will be automatically used for Field-oriented control.

GUID-20221118-SS0I-TJQD-CMVF-L61SNMXQQ1GH-low.gifFigure 6-2 C2000 InstaSPIN Universal GUI Running motor identification

GUID-20221118-SS0I-NL3N-JF5V-8NKFRQDSVQRL-low.gifFigure 6-3 Motor identification complete using the DRV8317HEVM InstaSPIN GUI