电梯控制系统设计设计.docVIP

毕 业 设 计 (论 文) 专 业 班 级 学生姓名 学 号 课 题 基于PLC的建筑设备自动控制系统设计 ——电梯控制系统设计（一） 指导教师  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西门子的可编程控制器PLC对机器进行全过程控制。 为了提高电梯控制系统的可靠性和设备的工作效率，设计了以PLC为核心控制器的电梯控制系统，用来取代以往的较复杂的继电器—接触器控制。本设计控制系统针对的是五层电梯。核心控制部分采用的是软件程序控制，从而在保证电梯正常运行这个要求的情况下，大大的提高了电梯故障检查与维修的方便性和容易性，同时还克服了手动操作所带来的一些人为干扰因素，实现了电梯主机的启动加速与稳定运行、停车制动、呼叫优先响应和开关门等控制功能，取得了良好的预期效果。 关键词：电梯；PLC；梯形图；控制系统 Abstract This text introduces the control system of a kind of elevator PLC. The elevator is perpendicular directional of the conveyance equipments be 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 machine control unit adoption carries on whole process a control to the machine by the programmable controller PLC of Siemens company. In order to improve the reliability of elevator control system and equipment working efficiency, people designed PLC as the core controller in t