电子电力电气专业（毕业论文）三层楼电梯PLC控制系统设计与调试.doc

三层楼电梯PLC控制系统设计与调试 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 peoples 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 Mitsubishi company. 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 to comprehension and control. KEY WORDS: The PLC controls system elevator The logic controls electric circuit 目 录 中文摘要…………………………………………………………4 Abstract…………………………………………………………5 目 录…………………………………………………………6 绪 论…………………………………………………………7 第一章 总体设计方案…………………………………………8 1.1 总体方案的确定………………………………………………….8 1.2 电梯PLC控制系统的构建………………………………………9 1.3 可行性论证………………………………………………………10 1.4 设计的整体布局及其选型………………………………………11 第二章 可编程序控制器的结构与工作原理………….14 2.1 PLC的体系结构………………………………………………14 2.2 可编程序控制器的基本结构…………………………………14 2.3 开关量I/O模块………………………………………………16 2.4 可编程序控制器的工作原理…………………………………17