基于S7—200的变频调速恒压供水系统

Constant Pressure Water Supply System with Changing Frequency and Speed Abilities Base on S7—200

为解决供水压力不稳定的问题,设计了一种基于S7—200的变频调速恒压供水系统。介绍该系统的组成和工作原理,具体说明控制系统中硬件和软件的设计,最后总结该系统的优点。实践证明,该系统可靠性高、经济性强。

In order to solve the instability of the water supply pressure, a kind of constant pressure water supply system with changing frequency and speed abilities base on S7-200 is designed. Its structure and working principle are firstly introduced, the design of the control system＇s hardware and software is then detailed, and the advantages of the system are lastly summed up. The system in practice proves to have hatter reliability and economy.