A micro switch is a quick switch that is actuated by pressure, also known as a sensitive switch. Its working principle is: the external mechanical force acts on the action reed through the transmission element, and after the energy is accumulated to the critical point, an instantaneous action is generated, so that the moving contact and the fixed contact at the end of the action reed are quickly connected or disconnected. open. When the force on the transmission element is removed, the action reed produces a reverse action force. When the reverse stroke of the transmission element reaches the critical point of the action of the reed, the reverse action is completed instantaneously. The contact distance of the micro switch is very small, and it has the characteristics of short action stroke, small pressing power, and rapid on-off.

In the elevator brake action state, the micro switch means that a few seconds before the elevator reaches the designated floor, there will be a corresponding sensing device to give the system a deceleration and braking command, the brake acts, and at the same time, the micro switch you mentioned also has a corresponding action, normally open The point is closed, the normally closed point is disconnected, and a signal is given to the system, indicating that the brake is good and working, otherwise, the system will start the corresponding program, such as: alarm, the backup brake device is activated, etc. Among them, the micro switch also has corresponding actions, the normally open point is closed, the normally closed point is disconnected, and a signal is given to the system, indicating that the brake is good and working, otherwise, the system will have a corresponding program to start.

Will the elevator go if the micro switch is shorted?

If the micro switch is short-circuited, the communication system of the elevator will have a corresponding program to start. Therefore, what will happen when the micro switch is shorted is that the protection function of the elevator will fail. Then the elevator won’t go. Rapid declines may also occur.

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