What do the four wires of a stepper motor mean?

The four wires of a stepper motor are usually marked as red, blue, green, and black, and they correspond to the four pins A+, A-, B+, and B- by default.

During actual connection, if you find that the running direction after wiring is not as expected, you can adjust the direction by swapping the pins of phase A and phase B. For example, if you swap A+ and B+, the motor will reverse. To distinguish the same phase, you can short-circuit any two wires and then gently turn the motor. When a load is applied, the two wires that can drive the motor to rotate are in phase.

When performing wiring operations, it is very important to understand these basic principles. Correctly connecting the four wires of a stepper motor can ensure that it runs in the expected direction and speed. If there is a wiring error, the direction problem can be solved by swapping the pins. In addition, shorting any two wires and observing the motor rotation can help quickly determine which two wires are in phase.
In actual applications, it is crucial to ensure that the four wires of a stepper motor are correctly connected. Correct connection ensures that the motor runs in the intended direction and speed. If the wiring is wrong, you can adjust the direction by swapping the pins. Shorting any two wires and observing the rotation of the motor will help quickly determine which are in phase.
It should be noted that correctly connecting the four wires of the stepper motor is essential for the normal operation of the motor. If the wiring is wrong, it may cause the motor to not work in the expected direction and speed. Therefore, when performing wiring operations, be sure to check carefully and ensure correct connections. If you encounter problems, you can adjust the direction by swapping the pins. Shorting any two wires and observing the rotation of the motor will help quickly determine which two wires are in phase.