基于PLC的电梯控制系统毕业设计 (2)

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1、 I 基于 PLC 的电梯控制系统设计 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,其拖动技术已经发展到了调频调压调速,其逻辑控制也由 PLC 代替原来的继电器控制。 本文主要的目的是结合 PLC， 介绍了电梯控制系统的构成和工作原 理， 并重点阐述了 PLC 在电梯控制系统中的应用， 并利用三菱 FX2-80MR、 变频器和交流电机来设计六层电梯控制系统。 整个系统通过PLC、逻辑控制电

2、路对电梯的升降；加、减速；平层；起动、制 动控制。其结构简单、运行效率高、平层精度高、易于理解与掌握。 关键词：PLC，电梯，变频器， II Design of PLC-based control system for elevator ABSTRACT along with our countrys high-speed economic development, microelectronics technology, computer technology and automatic control technology also have developed rapidly, ac v

3、ariable-frequency regulating speed technology has entered into a new era, with its used more and more widely. And as a modern high-rise buildings elevator vertical transportation, is closely related to peoples lives, as people to improve its request, elevator obtained fast development, the technolog

4、y have to drag speed, its logic FM surge by PLC control also replace original relay control.The this machine control unit adoption carries on whole process a control to the machine by the programmable controller PLC of Mitsubishi company. The purpose of this paper is a combination of PLC , introduce

5、s the elevator control system structure and working principle, and focuses on the PLC in the elevator control system, and to use the Mitsubishi FX2-80MR PLC, OMRONs 3G2JV frequency devices and two-phase AC motor to design five-story elevator control system. The whole system passes PLC, logic control

6、 the electric circuit is to the rise and fall of elevator;Add, decelerate;Even layer;Start, make to move a control.Its structure is simple and circulate an efficiency, even layer accuracy, be easy to comprehension and control. KEY WORDS: PLC, Elevator, Inverter III 目 录 前 言 1 第 1 章电梯的概论 2 1.1 电梯的概述 2 1.2 电梯的组成部件 2 1.2.1 机房 . 3 1.2.2 桥厢与对重 . 3 1.2.3 厅门 3 1.2.4 井道与设施 . 3 1.3 电梯主要电气设备 4 1.4 电梯的功能要求 6 第 2 章 电梯的硬件设备 7 2.1 电梯的主要部分. 7 2.2 电梯安全保护装置 7 2.3 可编程控制器的选择 7 2.4 电梯控制电路的设计 8 2.5 交流电机主电路 9 2.