摘要
作为典型的工控产品,变频器和PLC常配合使用,完成各种控制任务。在应用中,变频器和PLC间的控制信号连接时应注意哪些实际问题?文章分述并总结了三个方面应注意的问题:数字量信号连接应注意的问题;模拟量信号连接应注意的问题;变频器运行时对P L C干扰应注意的问题。
As the typical industrial control products,frequency converter is used together with PLC often finish all kinds of control task.In the application of PLC,frequency converter and the control signal connection between what practical problems should be paid attention to？ Article points from three aspects of and sums up the problems that should be paid attention to： The digital quantity signals connected problems should be paid attention to;Analogue signals connected problems should be paid attention to;Inverter runtime to PLC interference problems should be paid attention to.
出处
《自动化与仪器仪表》
2011年第6期166-167,共2页
Automation & Instrumentation
关键词
变频器
PLC
连接
问题
inverter
PLC
Connection
question
