![]() ![]() This results in half the basic step angle. Half step excitation mode is a combination of one phase on and two phase on full step modes. Two-phase on provides about 30% to 40% more torque than one phase on, however it requires twice as much power from the driver. This mode provides improved torque and speed performance. In two-phase on - full step, Fig2, the motor is operated with both phases energized at the same time. This mode requires the least amount of power from the driver of any of the excitation modes. In one-phase on - full step, Fig1, the motor is operated with only one phase energized at a time. There are two types of full step excitation modes. If the stepper motor has a 1.8° step resolution, then in order for shaft to rotate one complete revolution, in full step operation, the stepper motor would need to receive 200 pulses, 360° ÷ 1.8 = 200. Each pulse moves the shaft in fixed increments. ![]() These excitation modes have an effect on both the running properties and torque the motor delivers.Ī stepper motor converts electronic signals into mechanical movement each time an incoming pulse is applied to the motor. Stepper drives control how a stepper motor operates, there are three commonly used excitation modes for stepper motors, full step, half step and microstepping. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |