The four wires of the stepper motor are phase A, phase B, phase C and common wire. These wires are used to control the rotation direction and step angle of the motor. Specifically:
Phase A and phase B control the rotation direction of the motor. Usually, phase A and phase C together control the motor to rotate counterclockwise, while phase B and phase C together control the motor to rotate clockwise.
Phase C is mainly used to control the step angle of the motor.
The common wire plays the role of transmitting signals during the motor drive process and plays an important role in the control process of the motor.
In addition, the colors of these wires may be blue, green, red, and yellow, and these colors usually correspond to the connections of A+, A-, B+, and B- inside the driver. This wiring method allows the movement of the stepper motor to be precisely controlled by changing the magnitude and direction of the current, achieving precise position control and efficient performance.
