1： Static

Static state refers to the state when the rotor of the stepping motor is locked instantaneously. Generally speaking, DC current is applied in the control winding of the motor, and the rotor is locked. In this state, the phase current of the motor winding reaches the limit, and the winding can not be replaced, so at this time, the stepper motor can produce uneven heat in the on phase, so this working state is the state of serious heating of the stepper motor.

2： Steady state

The stable synchronous state is also one of the working states of the stepping motor. The stable synchronous state occurs when the control pulse frequency is constant. At this time, the rotor of the stepping motor rotates at a constant speed, so this rotation can also be regarded as periodic fluctuation of the synchronous speed. At present, the steady state of stepping motor can be divided into limit state and non-polar state

3： Transition state

When the frequency of the stepping motor changes from zero to start state, the rotor speed of the motor will accelerate from zero to start at the limit speed. When the control pulse is interrupted suddenly, the stepper motor will decelerate sharply from stable synchronous state to stop and lock. When the motor reverses, the rotor will suddenly change from a stable synchronous turntable in one direction of rotation to another stable synchronous state in the opposite direction, so as to over operate the state.

The main working states of stepping motor are the above three. The combination of these three states can achieve the excellent use advantages of stepping motor. Under the cooperation of these three working states, the stepper motor can operate normally and play an important role in different fields.