What is the safety contact of the elevator? Where is the safety contact? What is the use? How does it work More
The safety of the elevator contacts in all possible dangerous places will be from the top floor of the machine room through the hoistway, car doors, floor doors and so on to the bottom pit, these points are in series together, when these points are closed, When disconnected, as long as there is a group of contacts can not be closed elevator can not run.
Safe circuit, the normal state is through. All the places involving safety will have a contact, the engine room, the pit, the car door, each elevator door, all contacts in series together, any point off, the elevator can not move
You are talking about the security circuit, from the engine room to the pit have, from the security effect. Normal when the muscle pedicle can Li Ji pad snow ear grinding some of the Unicom, the fault was broken, the elevator did not go.
Safe circuit, the normal state is through. All the places involved in the safety of the body can be Li Jiu pad mattress will have a contact, the engine room, the pit, the car door, each elevator door, all contacts in series, any point off, the elevator It can not move.
