PLC电梯控制系统论文.doc

.页眉. 页脚. 江西冶金职业技术学院自学考试毕业设计(论文) 题目: PLC 电梯控制系统系(部): 机电工程系专业名称: 机电一体化姓名: 刘海鸟准考证号: 057010700455 班级名称: 09 机电自考大专(4) 班指导老师: 柳清华提交时间: 2011 年 10月 . 页脚. 目录一、绪论··································································· 1 电梯的应用与发展··················································· 1 电梯的发展现状······················································ 1 研究背景······························································· 1 研究内容······························································· 1 二、 PLC 的简介························································· 2 可编程控制器的概论················································ 2 PLC 的工作原理······················································ 2 PLC 的功能和优点··················································· 2 PLC 扩展模块与系统扩展·········································· 4 三、设计内容····························································· 5 总体概要······························································· 5 程序的设计···························································· 5 电梯控制系统的模拟实验控制面板······························ 6 程序及过程分析······················································ 6 总结········································································· 15 致谢········································································· 16 参考文献··································································· 17 .页眉. 页脚. PLC 电梯控制系统摘要随着科学技术的发展和计算技术的广泛应用,人们对电梯的安全性、可靠性的要求越来越高。 PLC (可编程控制器)作为一种工业控制计算机,它以安全可靠、运行稳定、编程方便、操作简单尤其是它的高可控性等优点,在电梯控制过程中得到了广泛的运用。电梯从电梯手柄快关操纵电梯、按钮控制电梯发展到了现在的群控电梯,为高层运输做出了不可磨灭的贡献。PLC 在电梯升降控制上的应用主要体现它的逻辑开关控制功能。由于 PLC 具有逻辑运算,计数和定时以及数据输入输出的功能。在电梯升降过程中,各种逻辑控制开关与 PLC 很好结合, 很好的实现了对系统的控制。关键词: PLC ;电梯控制系统;. 页脚. 一、绪论 电梯的应用与发展 1854 年,在纽约水晶宫举行的世界博览会上,美国人伊莱沙· 格雷夫斯· 奥的斯第一次向世人展示了他的发明-历史上第一部安全升降梯。从那以后,升降梯在世界范围内得到了广泛应用。以奥的斯的名字而命名的电梯公司也开始了她辉煌的旅程。 150 年以来,她已经发展成为世界、亚洲和中国领先的电梯公司。生活在继续,科技在发展,电梯也在进步。电梯的材质由黑白到彩色,样式由直式到斜式,在操纵控制方面更是步步出新-手柄开关操纵,按钮控制,信号控制,集选控制、人机对话等,多台电梯还出现了并联控制,智能群控;双层轿箱电梯