摘要
制冷工艺中,有许多控制回路和联锁环节,采用 PLC 控制后,整个控制系统体积减小,而且 PLC 编程容易、可靠高。本文简单阐述了制冷压缩机的工艺流程,重点介绍了控制系统的 PLC 梯形图,实践表明系统运行效果良好。
In the process of cooling technological,exist many control circuits and interlocks.Its bulk gets smaller,programming easier and more reliable after adopting the system of PLC controlling.The paper makes a brief introduction to the cooling compressor in technological flow.It focuses on the ladder diagram of PLC in the controlling system.The result of practice shows the good effect of the working of the system.
关键词
制冷压缩机
联锁
PLC控制
梯形图
Cooling processor
Interlocking
PLC controlling
Ladder diagram
