PLC建筑电梯控制系统中英文对照外文翻译文献Word格式.docx

1、Application of PLC in the Elevator Control System of Intelligence Building Abstract: The paper mainly discusses one subsystem of intelligence building system: the elevator control system. The PLC strong ability in interference and so on makes the elevator industry one after another to apply the PLC

2、to the elevator control system in order to replace the relay being used in traditional elevator control system. The Application of PLC in the Elevator control system reduces the breakdown rate and efficiently improves the operating reliability of the elevator with safety .The structure of system is

3、also simple and tightly packed.The working principle of the elevator control system is: The spot control information is send into the from the customer input devices firstly, then the PLC control cabinet is required to send out the control signal to drive the equipments according to the system deman

4、ds. The elevator can then proceed the homologous action according to the control request .The paper selects companys 200HE series PLC, introducing parts of signal hookup of the elevator control system and explaining the function of the control cabinet. Lastly the automation programming is introduced

5、. Simulated experiments enunciates that the design method is viable. It can make the personnel of the industry management center to long-distance monitor and control the elevator in control center, to connect the elevator control system with intelligence building industry management system by Ethern

6、et or special-purpose network such as Lon Works.The elevator working state can also be timely watched.These not only can realize scientific centralized management of the elevator, but also can lower the elevator maintenance cost etc. It is one of the developing direction of intelligence building ele

7、vator control system. Keywords: PLC; intelligence building; elevator control system; working principle; program design . Introduction In 1980s The first intelligence mansion had been completed in America, then intelligence building has been abroadly taken attentions by the whole world.The concept of

8、 intelligence building has been put different meanings along with the development of society. The early stage intelligence building had been thought that it is equal to the intelligent mansion, but now the intelligence building not only includes the intelligence mansions but also involves intelligen

9、ce residential districts. This paper mainly discusses one subsystem of intelligence building system: the elevator control system. In intelligence residential districts the enterprises information managing system mainly takes charge of the things which related to the daily life, for example supervisi

10、ng the district equipments, managing vehicles, disposing critical situations and so on.The elevator supervising and control system is also necessary to the intelligence residential districts.How to make people feel safe ,stable and comfortable and how to save energy resources and protect environment

11、s and so on are the basic requirements to the elevator control system. PLC is a common industry control device.It is a special industry control computer which has the perfect function and simple frame. The PLC strong ability in interference and so on makes the elevator industry one after another to

12、apply the PLC to the elevator control system, in order to replace the relay being used in traditional elevator control system. The Application of PLC in the elevator control system reduces the breakdown rate and efficiently improves the operating reliability of the elevator with safety. This paper m

13、ainly discusses the elevator control systems working principles, the systems software and hardware realization methods and so on. . The Working Principle of Elevator Control System In Fig. 1 the Hardware Structure Graph of Elevator Control System is presented.Fig. 1 The Hardware Structure Graph of E

14、levator Control SystemThe Working Principles of Elevator Control System are stated as follows: The spot control information is send into the PLC from the customer input devices firstly, then the PLC control cabinet is required to send out the control signal to drive the equipments according to the s

15、ystem demands. The elevator can then perform the homologous action according to the control request. There are velocity feedback devices in system, which adopt measure velocity generators to provide the elevator velocities and generally are installed in the tail of tow motors .So this is a feedback

16、control system, which can improve the systems control precision. . The Hardware Configuration of Control System It is not necessary to do interface circuit in the elevators PLC control system.What we should do is to send the signals to PLC digital input terminals.The signals include inside and outside calling signals ,floor location inspecting signals , limiting location signals ,opening and shutdown the elevato