基于 PLC 的运料传送带的控制系统设计 摘 要针对中小型皮带运输机的控制系统采用继电器控制，致使生产效率低，生产成本高，企业的竞争能力差，本文利用三菱 FX2N系列 PLC 控制皮带输煤机，有手动控制和自动控制两种控制方式，实现了软件与硬件相结合的控制方法，是皮带运输机自动化控制系统改善和提高的一条有效途径，用四条皮带运输机的传送系统，分别用四台电动机带动，具有较高的应用推广价值。该系统用可编程序控制器（PLC）作为控制核心，结合电动装置、称重传感技术的自动运输。在软件设计中，给出了程序流程图，并设计出梯形图程序，出现故障时可及时发出警报信息。此外，研究了 MCGS 在皮带运输机控制系统中的应用。利用组态软件 MCGS 设计了皮带运输机控制系统监控界面，进而为维修和故障诊断提供了多方面的可能性，充分提高了系统的工作效率。关键词：三菱 PLC，皮带输送机，自动化IAbstractAccording to the control system of small and medium sized belt conveyor with relay control, resulting in low production efficiency, high production cost, the enterprise competition ability, this paper makes use of the MITSUBISHI FX2N series PLC control of belt conveyer, a manual control and automatic control two control mode, control method realizes the combination of software and hardware, is a belt conveyor an effective way to improve the automation control system, transmission system with four belt conveyer, respectively with four motor drive, has a higher application value. The system uses programmable logic controller (PLC) as the control core, and combines pneumatic technology, sensing technology and position control technology to control the automatic transportation of products on-site. In the software design, the program flow chart is given, and the ladder diagram program is designed. When the failure occurs, the alarm information can be sent out in time. In addition, the application of MCGS in the control system of belt conveyer is studied. The monitor...
