文档介绍：毕业设计(论文) 电梯 PLC 控制设计学生姓名系(部) 专业指导教师 2010 年5月毕业设计 I 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三菱公司的可编程控制器 PL C 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毕业设计 II Abstract This text introduces the control system ofa kind of elevator elevator is perpendicular directional of the conveyance equipments be indispensable in the high building of transportation 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 updo perpendicularity to ascend and descend sport, there is prominent function in the people's 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 system mainly from PLC, logic control the electric circuit 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 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 structure is simple and circulate an efficiency, even layer accuracy, be easy prehension and control . Keywords: The PLC controls system elevator The logic controls electric circuit transducer . 毕业设计 III 目录前言...............................................................................................................................