The function of a travel switch is to change the movement state of the motor, thereby controlling mechanical actions or enabling program control. There are many travel switches on machine tools, which are used to control the travel of workpiece movement and automatic feeding, preventing collision accidents.
In daily life, travel switches are widely used. For example, the lighting lamp in a refrigerator, as well as the automatic door of an elevator and the speed of door opening and closing, are all controlled by travel switches. In industry, they can be used in conjunction with other equipment to form an automatic control system.
In the control of hoisting machinery, travel switches play a role in protecting terminal limits. Usually, travel switches are used to limit the position and travel of mechanical movement, enabling the mechanical movement to stop automatically, move in reverse, or perform free reciprocating movement according to a certain position and travel.