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

6.3 Sensorless-FOC Commutation

  1. To spin the motor with sensorless FOC, check the “Run” box again. The motor will spin with sinusoidal current at the speedRef (Hz) value in the GUI, which is automatically set to 20.0 Hz. Use the speedRef (Hz) input to change the current speed of the motor as shown in Figure 6-4. The GUI automatically calculates the current reference speed using the variable speed (Hz) and compares it to the trajectory speed variable speedTraj (Hz) to calculate the Speed Error (Hz) as a percentage.

GUID-20221118-SS0I-L7RP-DLXG-BG7Q1BM6FF5P-low.gifFigure 6-4 Sensorless-FOC commutation using the DRV8317HEVM InstaSPIN GUI