The wiring method of the 4 points of the travel switch is as follows:
1. When installing the travel switch, check whether the stopper collides with the travel switch head when it is in place, and must not collide with the middle or other parts of the travel switch.
2. When installing or checking the travel switch, fix it firmly, and turn the action head of the travel switch by hand, listen carefully to the sound, and check whether there is a “snap” sound. Micro switch screw.
Extension:
The travel switch generally has four contact points, which are divided into two groups. One group is normally open contact, and the other is normally closed contact. In the new city switch, when there is no action, the normally open contact is normally open. There are normally closed contacts, which are normally open contacts when they are not moving, normally open contacts when they are not moving, and normally closed contacts when they are not moving. The travel switch is also called a limit switch or a position switch. It is a control appliance that switches the working state of the circuit according to the stroke position of the moving parts. The action principle of the travel switch is similar to that of the control button, and it is widely used in automation devices such as machine tools, cranes, and lifting devices.
How to use the travel switch
①When installing the travel switch, pay attention to the direction of the rollers and cannot be reversed. The position where it collides with the block iron should meet the requirements of the control circuit, and ensure that it can collide with the block iron reliably.
② Always check whether the movement of the travel switch is flexible or reliable, and whether the screws are loose, and find faults and eliminate them in time.
③ The contacts of the travel switch should be cleaned regularly, grease or dirt should be removed, and worn parts should be replaced in time to avoid accidents caused by misoperation.
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