肋骨冷弯机PLC控制系统的可靠性设计  

Reliability Design of PLC Control System of Frame Bending Machine with Manipulator

作　　者：周冬生[1] 王呈方[2] 

机构地区：[1]重庆市重庆邮电大学通信工程学院 [2]武汉理工大学交通学院

出　　处：《上海电器技术》2009年第1期35-38,共4页Shanghai Electric Appliance Technology

摘　　要：论述了提高控制系统的抗干扰能力，就可以提高其稳定性和可靠性。通过分析程控机械手肋骨冷弯机的PLC控制系统的内部和外部干扰源，从系统供电、输入输出信号、系统接地及电缆敷设等四个方面提出了抗干扰措施，并以某船厂160t程控机械手肋骨冷弯机的控制系统为例，说明这些措施对提高系统的抗干扰能力和系统的可靠性有着十分重要的作用。In Order to enhance the stability and reliability of the control system, anti - interference capability must be improved in control system. An analysis is made on internal and external interference source of PLC system in the paper. Some concrete anti - interference measures are presented from the aspects of power supply, signal system, earthing system and so on.. For instance, 160tPLC control system of frame bending machine with manipulator controlled by programmable controller of Qingshan shipyard indicates that these measures are very useful for improving anti - interference capability and reliability of PLC control system.

关 键 词：PLC(可编程控制器) 控制系统 可靠性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] U671.3[自动化与计算机技术—控制科学与工程]