Stepping Motor Speed Direction Change

Stepper motors are motors whose speed, rotation direction, and position are always known. As the name suggests, these motors move in specific steps. However, it is up to you to determine these steps. The rotation direction can be changed by changing the order of the applied pulses. But how? In this week’s blog post, we will explain this topic to you in a way that has never been explained before.

Stepper Motor Rotation Direction

As the number of steps per revolution of stepper motors increases, their accuracy also increases proportionally. Increased accuracy per revolution also means increased cost. The direction of rotation of the motor is related to the direction of the voltage applied to the phases. In these motors, which move step by step, energizing one of the windings results in only one step of movement. The degree of the steps is related to the motor’s design. A relay is used to change the rotation direction of these motors. Changing the direction of any phase means changing the direction of the rotating magnetic field. There are two options for changing the direction of rotation of the motor. One option is to change the position of the auxiliary winding terminals, and the other is to change the position of the main winding terminals. During this process, the current of the field winding is changed. Thus, the motor starts to rotate in the desired direction.

However, it is important to note that if both current directions are changed, the motor’s direction will not change. To change the motor’s rotation direction, the end of one of the windings must be moved. We have come to the end of our blog post explaining how to control the rotation direction of a stepper motor. This process can be made easier with the help of a driver. You can purchase stepper motors and stepper motor drivers with the assurance of Şahin Rulman. If you have any questions about stepper motors, feel free to contact us.