PLC在泵排污系统中的保护功能应用

Protection function application of PLC in pump blowdown system

介绍了S7-200系列PLC某公司2台泵排污系统中的报警及保护功能应用,根据FT-YK系列浮筒指示液位控制成套装置的特点及运行中存在的问题,通过PLC程序控制,实现了电机自动轮换、故障报警、超时停泵等功能。降低了电机故障率,减少了电能浪费,提高了设备的运行可靠性。

This paper introduces the alarming and protecting function of S 7 -200 series PLC, which is applied in a corporation for pump system. According to the features of the FT-YK series float liquid level indication control assembly devices and the problems in working, the motor rotation, fault alarm, time-out stop pump functions are realized through the PLC program control. Meanwhile, the PLC program can reduce the fault rate of the motor, the electric energy waste and keep high operation reliability of the equipment.