大学毕设论文--基于plc的四层电梯控制系统设计.docVIP

金 华 职 业 技 术 学 院 J I N H U A P O L Y T E C H N I C 毕业教学环节成果 （2016届） 题 目基于PLC的四层电梯控制系统设计 学 院 信息工程学院 专 业 电气自动化技术 班 级 自动化132 学 号 201323010350052 姓 名 王翔 指导教师 张娴 2015年12月30日 基于PLC的四层电梯控制系统设计 信息工程学院电气自动化专业 王翔 摘要 关键词： Design of four layer elevator control system based on PLC Abstract：Elevator, the necessary transportation tool for tall buildings, is used for transferring passengers and commodities vertically. Most traditional elevator control system adopts relay--- contacting machine as its central director. But this system has so many disadvantages such as too many contacting points, high fault rate, heavy repairing work and so on. So if it was replaced by the control system equipped with PLC, the problems will be solved much more easily. This essay explains the application of PLC (Mitsubushi PLC) on elevator，by discussing the construction of elevator control system. It also illustrates the general design project, the design process and construction of the PLC control system for three-story buildings, listing the specific main circuit, trapezia control chart of elevator and repertoires. It also shows the construction of frame chart of the system and process flow chart. Thus the programming method of PLC is brought forward on the basis of analyzing and dealing with the logic relationship of random signs. It also designed a complicated elevator control system. If the project can be accepted, it can solve the problems which can be brought by relay, such as too many contacting points, high fault rate, low reliability, long installation and debugging time, heavy repairing work, complex connection and so on. Key words: elevator, PLC, ladder diagram 第一章 绪论系统硬件设计变频器结构及参数设置由于采用PLC作为逻辑控制部件，故变频器和PLC通讯时采用开关量而不用模拟量。由于61665是通用型变频器，因而用在电梯控制上为了满足运行效率、舒适感、平层精度和安全性的要求，其参数设置比专用型变频器要复杂得多. VS-61665变频器的参数61665变频器共有9组参数，每一组参数的设定