Introduction to limit function
In order to prevent the front or rear of the moving frame from colliding with other objects when moving in parallel, limit switches are installed at appropriate positions at the front and end of the moving track. When the cart moves in parallel and reaches the critical point, it will stop running and play the role of power failure.
After Yunnan crane is connected to the power supply, the whole crane operation is not always in the starting state, but starts and stops repeatedly, which belongs to intermittent operation. Therefore, walking equipment such as lifting mechanism and horizontal moving mechanism, including trolley and electric hoist, need to be equipped with limit switches to prevent all kinds of safety accidents.
The installation of the limit switch and whether the circuit is energized are all programmed as a whole by the owner's circuit, which is the core control part and controls the important components of Yunnan traveling equipment, such as command control, switch buttons, limit switches and so on. Limit switches generally have the advantages of small size, convenient installation, safety and reliability.