基于PLC的高层恒压供水自动控制系统设计

The Design of Automatic Control System for High-rise Constant Pressure Water Supply Based on PLC

针对高层恒压供水系统的特点及存在的问题,利用PLC、变频技术、传感技术等完成了对实际高层恒压供水系统的控制,实现了高层的变频恒压二次供水。利用变频—拖X技术实现对供水泵电机的群控;利用PLC的FX2N-2DA特殊功能模块实现对压力传感器的检测及反馈,从而保证了高层供水管网压力的恒定。

The control of the constant pressure water supply system was completed by using PLC based on the characteristics and problems of the constant pressure water supply system, frequency conversion technologyand sensing technology. The variable frequency constant pressure of the upper level is realized and the variable frequency is used to realize the group control of the pump motor. The fx2n-2da special function moduleof PLC is used to realize the detection and feedback of pressure sensors, thus ensuring the constant pressure of The high-rise water supply pipe network.