基于PLC的自动扶梯控制系统的设计(附PCL程序,电路图)

基于PLC的自动扶梯控制系统的设计(附PCL程序,电路图)(毕业论文11500字,PLC程序,CAD电路图)
摘  要
自动扶梯被广泛应用于酒店，商场，地铁，火车站，写字楼，机场等场所，在广大客户的便利性，提高服务质量起到了非常重要的作用。本设计采用PLC控制系统可靠性高，稳定性好，编程简单，使用方便，便于维修和保养等显著优势。 PLC的应用到自动扶梯，可以大大提高自动扶梯的控制水平，自动扶梯达到控制效果更理想。与继电器相比控制自动扶梯有一个质的飞跃。它使电脑控制的自动扶梯，自动扶梯更智能。自动扶梯由伺服驱动，Y-Δ切换启动。从安全要求和检验要求运行电梯出发，并考虑到了电梯操作的便利性，该方案主要目的是实现三个操作状态：自动操作，手动操作，维护操作。在正常情况下，自动扶梯进入自动运行;当一个特定的情况时，自动扶梯的外部手动信号的作用下，进入手动运行状态，当系统维护，大修将墨盒插入维护状态发生。电气系统部件之后，以达到最佳的控制，控制程序需要精心准备的PLC的。在PLC控制程序需要被处理过的第一和最重要的安全电路的逻辑信号的检测信号，由这些信号的处理，给予适当的运行状态的显示和报警信号。
  关键词：PLC    变频器    星三角换接启动 

Abstract
    Escalators are widely used in hotels, shopping malls, subways, train stations, office buildings, airports and other places, in the convenience of our customers and improve service quality has played a very important role. The design uses a PLC control system with high reliability, good stability, programming is simple, easy to use, easy to repair and maintenance and other significant advantages. The PLC is applied to the escalator, can greatly improve the level of control of the escalator, escalator reached the control effect is more ideal. Compared with relay control escalators have a qualitative leap. It enables computerized control of the escalator, escalator more intelligent. Escalators by servo drive, Y-Δ switching activation. From the safety requirements and inspection requirements to run the elevator starting, taking into account the convenience of the elevator operation, the program primarily designed to achieve three operating states: automatic operation, manual operation, maintenance operation. Under normal circumstances, the escalator into the automatic operation; when a particular situation occurs when the escalator in the role of external hand signals, enter manually run the state, when the system maintenance, overhaul insert the cartridge into the maintenance state. After the electrical system components, in order to achieve optimal control, the control program needs careful preparation of the PLC. In the PLC control program needs to be treated first and foremost safety circuit logic signal detection signal, by processing of these signals, given the appropriate operating status display and alarm signals
Key Words:     PLC     Drive  Delta change-start
 

目   录
1. 引言…………………………………………………………………………1
1.1背景介绍……………………………………………2
1.2产品介绍……………………………………………2
1.3发展前景……………………………………………2
2. 系统方案设计……………………………………………………………9
2.1控制原理设计…………………………………………………………9
2.2 电路图原理设计…………………………………………………9
2.2.1 PLC cpu部分设计……………………………………………………10
2.2.2 PLC模拟量模块设计…………………………………………………12
2.3输送带电机设计…………………………………………14
3. 系统元件的选型……………………………………………………………9
2.1PLC cpu模块的选型…………………………………………………………9
2.2 三相交流电机的选型…………………………………………………9
4. 软件流程设计……………………………………………………………9
2.1程序流程设计…………………………………………………………9
2.2 主程序设计…………………………………………………9
参考文献