The primary features of stepping motors are the ability to obtain precise positioning and the simplicity of design. They achieve this by rotating and stopping at step angle increments that are determined by the pole structure of the rotor and stator. Rotating in step angle increments, however, also produces changes in rotor speed and resonance at certain speeds that can cause vibration.
Microstep driving provides a finer degree of control of the basic motor step angle by regulating the current sent to the motor coils, resulting in slow speeds, low-vibration and low-noise operation.
● Since the basic motor step angle (0.72 degree/ full step) can be divided into proportions ranging from 1/1 to 1/250, smooth operation in fine increments is possible.
● Technology that changes the motor drive current smoothly suppresses motor vibration and makes operation quieter.