The limit switch in elevator is used to slow down and control the stop of the elevator. According to the direction of elevator operation, the elevator first encounters a forced deceleration. If the speed of the elevator is higher, the deceleration switch can be divided into a first level deceleration switch, a second level deceleration switch, or even more. The elevator car will execute a deceleration action when it touches the deceleration switch. The elevator car will immediately stop running upwards or downwards when it touches the upper and lower limit switches, but it can still run downwards or upwards.
The elevator car will immediately cut off the control circuit and stop running when it touches the limit switch. Both up and down cannot operate. The elevator can only operate after the car is moved away by external force and the limit switch is reset. Control the speed of opening and closing the car door. Previously, micro switches were used to control the series resistance to change the speed, and the terminal also used micro switches to disconnect the power supply of the door opening machine. Nowadays, most elevators use variable frequency door motors to control the speed of opening and closing the car door and the limit of automatic door opening and closing. This is just a general principle, and the specific form may vary from manufacturer to manufacturer.
Shanghai Janetec Electric Co., Ltd., as a professional manufacturer of elevator equipment, has been committed to providing users with high-quality Elevator Limit Switch Products and services. The launch of this new Elevator Limit Switch Products once again demonstrates the company's strength and competitiveness in technology research and product innovation, which will undoubtedly bring users a more convenient and safe elevator experience.
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