What role do gate switches serve in an elevator system?

Gate switches play a critical safety role within elevator systems by preventing car movement. This safety feature is essential for ensuring that the elevator car does not move while the doors are open. When the doors are not securely closed, the gate switches send a signal to the control system, which then prevents the elevator from being operational. This design helps to protect passengers from the dangers associated with entering or exiting the elevator while it is in motion, making gate switches integral to the overall safety mechanism of the elevator.

While other components like power supplies or door movement initiators are essential for the operation of an elevator, gate switches specifically focus on the safety aspect by ensuring that car movement is halted until it is safe for passengers. They detect the position of the doors and correlate that information with the elevator's operation. This function solidifies their position as a pivotal element in ensuring the protection of passengers.