西门子PLC控制的四层电梯设计

文档编号:ZD208 文档字数:17725,页数:58  附PLC源程序

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。而电梯作为现代高层建筑的垂直交通工具，与人们的生活紧密相关，随着人们对其要求的提高，电梯得到了快速发展，其逻辑控制也由PLC代替原来的继电器控制。本文采用PLC对电梯进行控制，通过合理的选择和设计，提高了电梯的控制水平，并改善了电梯运行的舒适感，使电梯达到了较为理想的控制效果。本文主要介绍了四层电梯的 PLC 控制系统总体设计方案、设计过程、组成，列出了电梯的控制梯形图。并给出了系统组成框图，在分析、处理随机信号逻辑关系的基础上，提出了PLC 的编程方法。

关键词：四层电梯；S7-200PLC；控制系统 , 梯形图

Abstract
Along with our country economy's high speed development, the microelectronic technology, the computer technology and the automatic control technology also obtained the rapidly expand, the exchange frequency conversion velocity modulation technology already entered for one brand-new time, its application was getting more and more broad. But the elevator takes the modern high-rise construction the vertical transportation vehicle, with people's life close related, along with the people to its request's enhancement, the elevator obtained the fast development, its logical control also replaces the original black-white control by PLC. This article uses PLC to carry on the control to the elevator, through the reasonable choice and the design, raised elevator's control level, and improved the elevator movement comfort, enabled the elevator to achieve the more ideal control effect. This article mainly introduced four elevator's PLC control system overall project designs, the design process, the composition, have listed elevator's control trapezoidal chart. And has given the system composition diagram, in the analysis, in the processing random signal logical relation's foundation, proposed the PLC programming method.
key word: Four elevators; S7-200PLC; Control system, trapezoidal chart

目录
摘  要 1
Abstract 2
目录 3
1 绪论 3
1.1 电梯的发展 3
1.2 电梯的分类 4
1.3 电梯的基本规格、型号和主要性能指标 5
1.4 电梯的运行过程简介 8
1.5 PLC在电梯系统中的应用 9
1.6对电梯系统的控制要求 10
2 电梯的机械系统 11
3 电梯的拖动控制系统 13
3.1 电梯电气控制系统的主要环节 13
3.2 电梯电气控制系统的主要部件及器件 18
4 总体方案的设计 20
4.1 系统控制方案的确定 20
4.2 系统对电气控制的要求 21
4.3 电梯主要设备的选型 21
4.4 PLC的选型 23
5 电梯的控制流程及梯形图编制 23
5.1电梯控制流程图 23
5.2 四层电梯运行规则 24
5.3 输入输出地址分配表如下 25
5.4 PLC的外部接线图 26
5.5 PLC完整梯形图 26
5.6 PLC 完整语句表 38
结  论 53
致  谢 55
参考文献 56
附  录 57

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