基于plc的电梯控制系统.docxVIP

基于PLC原理的电梯控制系统的设计 摘要 （PLC）是以计算机技术为核心的通用自动控制装置，在各行各业中得到了广泛的应用。在电梯行业中，PLC的作用得到了充分的体现。本文介绍了PLC控制的五层电梯模型的构成、主要功能、PLC的I/O接口分配、PLC的编程方法及对电梯系统的程序设计等。通过对电梯控制系统的程序设计，实现了电梯的开关门控制以及在电梯运行方式下电梯的呼叫显示、上下行、起动、延时关门、平层、停靠开门、信号排队、顺向截梯和报警等控制功能。通过对软件程序的编译、硬件的连接以及电梯模型与PLC控制系统的联调，使得控制系统在电梯模型运行过程中直观的体现出来，实现了对电梯功能的控制。 21世纪将会发展多用途、全功能的塔式建筑，超高速电梯继续成为研究方向。曳引式超高速电梯的研究继续在采用超大容量电动机、高性能的微处理器、减振技术、新式滚轮导靴和安全钳、永磁同步电动机、轿厢气压缓解和噪声抑制系统等方面推进。采用直线电机驱动的电梯也有较大研究空间。未来超高速电梯舒适感会有明显提高。电梯是标志现代物质文明的垂直运输工具、是机—电一体化的复杂运输设备。它涉及电子技术、机械工程、电力电子技术、微机技术、电力拖动系统和土建工程等多个科学领域。目前电梯的生产情况和使用数量已成为一个国家现代化程度的标志之一。关键词：PLC；电梯控制；电梯系统；自动化 PLC based elevator control system principle of designAbstract Programmable Logic Controller (PLC) is a common control device which use computer technology as a core, PLC gets a wide range of applications in all walks of life. In the elevator industry, PLC’s role has been fully expressed. This paper introduces the PLC-controlled model of a five-story elevator，include it’s composition, main function, the I/O interface distribution of the PLC, the PLC’s programming methods and procedures design of the elevator system. With procedures design of the elevator control system can achieve the elevator door’s opening and closing control, and the elevater’s indication under the call, moving from top to bottom, starting-up, delay closed, Ping layer, opening the door, making signals in the queue, close to the escalator and alarming control under the mode of the elevator’s operation mode. Through the process of compiling software, hardware connection and the conjunction of elevator model and the PLC control system, which makes the elevator control system model intuitive reflected in the course of operation and realized the elevater’s functional control. The 21st century will develop multipurpose, full-featured tower building, ultra-high speed elevator continue to become the research direction. Traction type super-fast elevator research continues to super capacity motor, high performance by the microprocessor, dampin