Design of step motor control system
Abstract: The outstanding advantages of step motor are that it can realize speed regulation, quick startup and stop, positive-reverse control, brake and so on by changing the frequency of pulse. In addition, the open-loop system that consisted of the step motor is simple, cheap and reliability. Therefore its application is very extensive in many fields. The design focuses on a high-performance step motor driver and its control system. The system adopts PC as its master computer and the single-chip microprocessor SPCE061A as its slave computer. The speed and direction of the motor is set by the slave computer, and the data signal of the slave computer are displayed and backuped by the master computer. Using serial communication between single-chip and PC, remote and real-time monitoring of the stepping motor is implemented. We design an efficient and energy step motor control system using software to replace annular distributor. The software is designed using the modular design method that is easy to be maintained, and take hardware and software anti-jamming technology to enhance the stability of the system. A lot of experiments show that the performance of the system has reached the designed requirements. Finally, we analyze and summarize our design.
Key word：Single-chip microprocessor, Serial communication, Stepper motor
