PLC在电梯控制系统中的应用
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PLC在电梯控制系统中的应用
摘 要
随着社会的不断发展，楼房越来越高，而电梯成为了高层楼房的必须设备。电梯从手柄开关操纵电梯、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（可编程控制器）作为一种工业控制微型计算机，它以其编程方便、操作简单尤其是它的高可靠性等优点，在工业生产过程中得到了广泛的应用。它应用大规模集成电路，微型机技术和通讯技术的发展成果，逐步形成了具有多种优点和微型，中型，大型，超大型等各种规格的系列产品，应用于从继电器控制系统到监控计算机之间的许多控制领域。
PLC在电梯升降控制上的应用主要体现在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，各种逻辑开关控制与PLC很好的结合，很好的实现了对升降的控制。
本文主要讨论研究利用日本OMRON公司的C系列P型机对电梯的升降进行控制，形成电梯控制系统。
关键词：PLC，工业控制，电梯升降控制，OMRON
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THE APPLICATION OF PLC IN THE
CONTROL SYSTEM OF ELEVATOR
ABSTRACT
As the city continues to develop, more and more high buildings are
built, so elevators become the necessary equipment of high-level
buildings.Elevators develop from the manipulation of the lift, elevator
button control to the group control now,and they makean indelible
contribution for the high-level transport.
PLC(Programmable Logic Controller),as a micro-computer for
industry control, with its programming convenient, easy to operate
particularly for its high-reliability advantages have a wide range of
applications during the process of industrial production.It applies its
large-scale integrated circuits, and microcomputer technology and
communications technology development results,gradually forming a
diverse strengths and micro, medium, large, very large, and so on a
variety of products,and it relay applied in many areas from the
computer control system to monitor the control.
PLC in the movements control of elevators mainly embodied in its
logic switch control. As PLC has functions of logic operation, counting
and timing and data input and output,So in the process of elevator
movements,all logic control and PLC combine well, at the same time
the control of lifting is achieved.
This article focuses on the study of the movements control
of elevator using Japan's OMRON C Series P type PLC and the formation of the control system of elevator.
KEY WORDS:PLC,industry control,5-floor elevator, OMRON III
目 录
前 言 .................................................................................. 1
第1章 绪论........................................................................ 2
§1.1 课题任务的提出 ..................................................... 2
§1.2 国内外同类设计的概况综述 ................................... 3
第2章 PLC概述 ................................................................. 4
§2.1 PLC的产生和发展 ................................................... 4
§2.2 PLC的基本结构 ...................................................... 5
§2.2.1 中央处理器（CPU）.......................................... 5
§2.2.2 存储器 .............................................................. 6
§2.2.3 输入部件 .......................................................... 6
§2.2.4 输出部件 .......................................................... 6
§2.2.5 电源 ................................................................. 7
§2.2.6 编程器 .............................................................. 7
第3章 交流双速电梯的基本工作原理 ............................... 8
§3.1 交流双速电梯的主电路 .......................................... 8
§3.2 电梯的主要电气设备 .............................................. 9
第4章 可编程序控制器的设计 ........................................ 13
§4.1 输入/输出电路的设计 .......................................... 13
§4.1.1 门机电路、抱闸电路、门锁及安全运行电路 13
§4.1.2 PLC输入/输出电路......................................... 13
§4.2 梯形图的设计 ....................................................... 13
§4.2.1 开关门环节 .................................................... 14
§4.2.2 层信号的产生与清除环节............................... 15
§4.2.3 信号的登记与消除环节 .................................. 16
§4.2.4 呼梯信号的登记与消除环节 ........................... 16 IV §4.2.5 电梯的定向环节 ............................................. 17
§4.2.6 自动运行时起动加速和稳定运行环节 ............ 18
§4.2.7 停车制动环节 ................................................. 18
结 论 ................................................................................ 20
参考文献 ........................................................................... 21
致 谢 ................................................................................ 23
附 录 ................................................................................ 24
