基于PLC的自动门控制系统设计

基于 PLC 的自动门控制系统设计摘 要随着科学技术的不断进展，自动门系统已开始应用于大型公司、科研所、政府机关等保密性较强的单位。为增强自动门运行的可靠性，本设计提出了一种FX232MR 可编程控制器（PLC）与变频器控制的自动门控制系统，设计中采纳两个感应探测器(门内和门外）、一些开关及传感器作为此系统的输入设备，变频器用来调节门体速度,并分析了该控制系统的工作原理及系统的硬件组成,分析了人体感应探测、自动门运行位置检测、门运行障碍检测等控制电路的工作过程，对PLC 的选型、变频器的选型、I/O 点的确定及自动门的动作过程等方面进行了详细阐述。结合 PLC 的运行特点,对控制系统的工作流程作了合理的优化。在此基础上，给出了控制系统软件设计的程序流程图、顺序功能图、外部端子接线图及PLC 控制梯形图等.本设计介绍应用可编程控制器取代传统的继电器、接触器控制系统,实现自动门控制的过程。关键词:自动门，可控制编程器，梯形图,变频控制Design of Automatic Door Control System Based on PLCABSTRACTWith the continuous development of science and technology ， automatic door system has been applied to large companies ， research institutes ， government agencies and other units are highly confidential. To enhance the reliability of automatic door operation ， this design presents a FX2 —32MR programmable logic controller (PLC ） and the inverter control automatic door control system， the design uses two sensor probes (door and door outside）， some switches and sensors as the system input device， the drive door is used to adjust the speed ， and analyzes the working principle of the control system hardware components and systems, analysis of the human body detection sensors, automatic door operation position detection, the door obstacle detection and other control circuit to run the working process ， the selection of the PLC, inverter selection, I / O points of the action to identify and automatic doors and other aspects of the process in detail...