基于plc的电梯控制系统设计（终稿）本科论文 .doc

泰 山 学 院 本科毕业设计 基于PLC的电梯控制设计 所 在 学 院 机械与工程学院 专 业 名 称 机械设计及其制造自动化 年 级 二〇一〇级（3+2） 学生姓名、学号 指导教师姓名、职称 完 成 日 期 二〇一二年五月 摘 要 随着我国科技与经济的进步，电梯逐渐融入我们的日常生活与工作当中。它不仅仅是高层建筑里的必备设施，在多层建筑里也是不可缺少的垂直运输工具。电梯的控制系统已由初期的继电控制向微机控制发展。可编程控制器由于具有可靠性高，功能强大等特点已经成为电梯微机控制系统的核心。本机控制单元采用以三菱公司的可编程控制器PLC对机器进行全过程控制。可编程控制器(PLC)是以计算机技术为核心的通用自动化控制装置。它的功能性强,可靠性高,编程简单,使用方便,体积小巧,将PLC 应用于电梯控制，克服了继电器控制的控制线路复杂、体积大、故障率高、难于维护等缺点，电梯控制系统的安全性、可靠性得到了很大的改善。 整个系统通过PLC、逻辑控制电路对电梯的升降；加、减速；平层、起 动、自动控制。其机构简单、运行效率高、平层精度高，易于理解与掌握 关键词:电梯；控制系统；可编程控制器 ABSTRACT As Chinas technological and economic progress, the elevator gradually integrated into our daily lives and work them. It is not just high-rise building in the necessary facilities, in the multi-storey buildings in the vertical transport is essential. Elevator control system from the initial development of relay control to computer control. Programmable controllers as high reliability, powerful features such as computer control systems have become the core of the elevator. The control unit using the Mitsubishi PLC programmable controller controls the whole process of the machine. Programmable logic controller (PLC) is a general automatic control device as the core of a computer technology, its strong function, high reliability, simple programming, easy to use, small size, applying PLC to elevator control to overcome the elevator control circuit complexity, big volume, difficult to maintain and high defects. it obtained very big improvement to elevator control system of the safety and reliability. The entire system through the PLC, logic control circuit of the elevator lift; acceleration, deceleration; flat layer, starting, automatic control. The organization is simple, high efficiency, high precision leveling, easy to understand and mast Key words: elevator; control system; programmable controller 目 录 1 引 言 1 1.1 电梯的