摘要
介绍了PLC控制的变频拖动系统在行车中的应用,对系统中PLC与变频器的通信,同步纠偏,安全措施做了详细的说明,并给出联系统的软、硬件组成。
This paper introduces the application to electric controlled system by PLC used for crane. PLC communication to inverter. hoist synchronication and protection are described in detail. the composition of software and hardware in the system are presented.
关键词
电力拖动
变频调速
可编程控制器
Electric drive
Variable frequency adjust speed
PLC
