基于PLCS7-200三层小型升降梯电气控制设计港口_毕业设计（论文）.doc

专科毕业设计（论文） 设计题目： 基于PLCS7-200三层小型升降梯电气控制设计 系 部： 电气工程系 专 业： 港口电气技术 2013年3月 南京 摘 要 随着我国经济的高速发展，微电子技术、计算机技术和自动控制技术也得到了迅速发展，交流变频调速技术已经进入一个崭新的时代，其应用越来越广。本文在已有的通变频器的基础上采用PLC对升降梯进行控制，通过合理的选择和设计，提高了升降梯的控制水平，并改善了升降梯运行的舒适感，使升降梯达到了较为理想的控制效果。 用可编程控制器（PLC）取代微机实现信号集选控制其优势在于生产规模较小，自己设计和制造微机控制装置成本较高；而PLC可靠性高，程序设计方便灵活，抗干扰能力强、运行稳定、可靠性高等特点，所以现在的升降梯控制系统广泛采用可编程控制器（PLC）来实现。系统中，采用PLC构成的系统，具有可靠性高，故障率低，维修方便等优点。本系统设计就是采用西门子s7-200作为升降梯教学模型的控制装置。 关键词： PLC S7-200 升降梯 Abstract With the rapid development of Chinese economy, microelectronic technology, computer technology and automatic control technology also obtained the rapid development, AC variable frequency speed control technology has entered a new era, its application more and more widely. PLC to control the elevator based on the general frequency converter on existing, through the rational selection and design, improve the level of the elevator control. The good operation of the elevator comfort, so that the lift to reach a more satisfactory control effect. Programmable controller with second control mode (PLC) to replace the computer control signal sets the election. the smaller scale of production, design and manufacture of high cost of computer control devices; and PLC high reliability, convenient and flexible program design, strong anti-interference ability, stable operation, high reliability, so the elevator control system is now widely used in programmable logic controller (PLC) to achieve. System, the form of the PLC system, and has the advantages of high reliability, low failure rate, the advantages of convenient repair. This system is designed by using Siemens S7-200 as the control device of elevator teaching model. Keywords: PLC S7-200 elevator 目 录 TOC \o 1-2 \h \z \u 1 引言 5 2 升降机设计 6 2.1 升降机基本结构介绍 6 2.2 设计的任务 7 2.3 设计的基本要求 8 3 PLC 总体设计 8 3.1 PLC选型 8 3.2 PLC端子接线 8