毕业设计（论文）-基于PLC的电梯控制系统的设计精选.doc

基于PLC的电梯控制系统的设计 摘 要电梯是集机电一体的复杂系统，不仅涉及机械传动、电气控制和土建等工程领域，还要考虑可靠性、舒适感和美学等问题。而对现代电梯而言，应具有高度的安全性。事实上，在电梯上已经采用了多项安全保护措施。在设计电梯的时候，对机械零部件和电器元件都采取了很大的安全系数和保险系数。目前由可编程序控制器(PLC)和微机组成的电梯运行逻辑控制系统，正以很快的速度发展着。关键词：Design of elevator control system based on PLC Abstract With the development of society, especially the construction of modern city brought by rapid growth of the high-rise building more violent, elevator also is especially important for the people life in the high-rise building of vertical transportation! In the early, when lift is invented, its control way is relay control way, but this kind of control mode has a fatal flaw-poor safety. With the development of microelectronics technology, computer technology, and automatic control theory, the logic of the elevator control is PLC instead of the original relay control, and it is safety , reliability are improved.In this paper, the design and debugging of PLC system are stated in detail in a storied building six elevator model control system. The core of the system control part is made of Mitsubishi operation cost. So PLC control technology has become a modern elevator control of a hot spot. The elevator is mechanical and electrical integration of the complex system, not only involves the mechanical transmission, electrical control and the civil engineering field, such as to consider issues such as reliability, comfort and aesthetics. And for the modern elevator, should have high security. In fact, have been adopted by a number of safety protection measures on the elevator. In the design of the elevator, the mechanical parts and electrical components are took a large safety coefficient and the coefficient of insurance. Keywords: PLC; elevator; control system目 录摘 要 I Abstract II 概论 1 一、 电梯控制系统的方案设计 4 1.1 电梯的工作原理 4 1.2 电梯的功能要求 4 二、 电梯的硬件设计 5 2.1 PLC的简介 5 2.1.1 PLC的特点 5 2.1.2 PLC在电梯控制中的特点 5 2.1.3 S7-200系列PLC的简介 6 2.1.4 PLC的结构及组成 6 2.1.5 PLC的工作原理 8 2.2 电梯系统硬件的选择及电路图 8 2.2.1曳引电动机主电路电路图设计 9 2.2.2 电器柜布线图 10 2.2.3 控制门电路电路图