24.8. STEP MOTOR FOC

24.8.1. Overview

The step motor foc project description Stepper motor control using vector modulation. - Use the FOC control algorithm

  • Trapezoidal acceleration and deceleration curves

  • The current waveform is as follows, a sine wave with a phase difference of 90 degrees

24.8.2. Configurations

  • 42 Stepper Motor, 24v, 50 Pair of Poles.

  • Stepper motor driver board 24V_STEP_NONE_2A .

    • plug J2 and J4

    • connect M1 to motor

  • Plugged into the driver board via the motor interface

24.8.3. Running the demo

The stepper motor switches forward and reverse speed without stopping, and the serial port prints speed information.

The serial console message is as follows:

step motor demo.
speed: 1 r/s.
speed: -2 r/s.
speed: 3 r/s.
speed: -4 r/s.
speed: 5 r/s.
speed: -6 r/s.
speed: 1 r/s.
speed: -2 r/s.
speed: 3 r/s.
speed: -4 r/s.
speed: 5 r/s.
speed: -6 r/s.
speed: 1 r/s.
speed: -2 r/s.
speed: 3 r/s.

Warning

  • Pay attention to the current size, when abnormalities occur, please cut off the power at any time

  • Pay attention to the temperature of the stepper motor in long-term operation.