plc控制电梯毕业论文.doc

学号 20100608050308 密级公开兰州城市学院本科毕业论文基于 PLC 的电梯电气控制系统的设计学院名称: 培黎工程技术学院专业名称:机械设计制造及其自动化学生姓名:侯智峰指导教师:魏万华高级工程师二○一四年五月 BACHELOR'S DEGREE THESIS OF LANZHOU CITY UNIVERSITY Design PLC elevator control system based on electric College : Pei LiC ollege of engineering and technology Subject : Mechanical design manufacturing and automation Name : Hou Zhifeng Directed by: Wei Wanhua Senior Engineer May 2014 郑重声明本人呈交的学位论文,是在导师的指导下,独立进行研究工作所取得的成果,所有数据、图片资料真实可靠。尽我所知,除文中已经注明引用的内容外,本学位论文的研究成果不包含他人享有著作权的内容。对本论文所涉及的研究工作做出贡献的其他个人和集体,均已在文中以明确的方式标明。本学位论文的知识产权归属于培养单位。本人签名: 日期: 1 摘要电梯在国民经济和生活中有着广泛的应用。电梯已成为重要的运输设备之一。国内传统的电梯控制是由继电器、接触器构成的。它不仅存在着可靠性差、成本高、故障率高等缺点,而且在层数增加时,配线变化给制造及安装带来诸多不便。用 PLC 实现对电梯电气系统的控制。大大的提高了系统控制的优越性,降低了成本,减小电气控制系统的的故障率。该课题的设计任务利用可编程控制器( PLC )进行货运电梯的电气控制,该课题的设计思路是采用逻辑控制原理,根据控制的要求和电梯自身的运输规律,响应随机的外部呼叫信号。经过设计分析,选用三菱 FX 2N型 PLC 实现货运电梯电气控制系统的整个程序设计的过程,并主要阐述了三个方面:系统的控制要求、系统配置、软件设计。本系统的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,取得了良好的预期效果。关键词:电梯 PLC 控制系统 2 Abstract Elevator is widely applied in the national economy and life. The elevator has e one of the important transport equipment. Traditional domestic elevator control posed ofa relay, contactor. It isnot only the existence ofpoor reliability, high cost, high failure rate and ings, but also in layers increases, changes to the wiring and installation of manufacturing has brought a lotof inconvenience. To achieve control of the elevator electricalsystem with PLC. Greatly improve the superiority of system control, reduce cost, reduce the fault rate of electric control system. The subject of design tasks using the programmable controller (PLC) for electrical control freight elevator, the subject of design thinking is the logic control principle, according to the transport rule control requirements and its own elevator, in response to random external call signal. Through the designanalysis, selection of Mitsubishi FX2N type PLC electric control system offreight elevators throughout the design