四层电梯PLC控制系统设计.doc

论文题目: 四层电梯PLC控制系统设计
摘要
本文介绍一种电梯PLC控制系统。电梯是垂直方向的运输设备,是高层建筑中不可缺少的交通运输设备。它靠电力,拖动一个可以载人或物的轿厢,在建筑的井道内导轨上做垂直升降运动,在人们生活中起着举足轻重的作用。而控制电梯运行的PLC系统也要求越来越高,要求达到电梯运行的“稳、准、快”的运行目的。该系统主要由PLC、逻辑控制电路组成。其中包括交流异步电动机、继电器、接触器、行程开关、按钮、发光指示器和变频器组成为一体的控制系统。本机控制单元采用以欧姆龙的可编程控制器PLC对机器进行全过程控制。
整个系统通过PLC、逻辑控制电路对电梯的升降;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控制系统电梯逻辑控制电路变频器
Abstract
This text introduces the control system of a kind of elevator PLC. The elevator is perpendicular directional of the conveyance equipments be indispensable in the high building of transportation equipments. It depends electric power, dragging along to move a car that can carry person or thing and lead a track in the building of the well way up do perpendicularity to ascend and descend sport, there is prominent function in the people's life. And the control elevator circulate of the PLC system also has more and more high request, request to attain the movement purpose of "steady, quasi-, quick" of elevator movement. That system mainly from PLC, logic control the electric circuit constitute. Include an exchanges difference to tread electric motor among them, after the electric appliances, get in touch with a machine, route of travel switch and press button, give out light the indicator constitute and transducer for the control system of integral whole. The this machine control unit adoption carries on whole process a control to the machine by the programmable controller PLC of pany.
The whole system passes PLC, logic control 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 prehension and control.
Key Words:The PLC controls system ,elevator ,The logic controls electric circuit,transduc.
目录
第一章可编程控制器 1
第一节可编程控制器的特点 1
第二节可编程控制器的组成与工作原理 1
1
1
第二章总体设计 3
第一节设计方案与技术指标 3
3
3
3
第三章硬件设计 5
第一节装置结构与工艺要求 5