基于PLC的变频调速恒压供水系统的设计

Design of Constant Pressure Water Supply System with Changing Frequency and Speed Abilities Base on PLC

以一个生活区的恒压供水系统为例,介绍了应用PLC实现变频恒压供水的方法。详细介绍了系统的硬件结构、工作原理和软件实现,并给出了有关控制软件的流程图和PLC功能图。

This paper takes a constant pressure water supply system of a life area as an example , and introduced the method achieves constant pressure water supply by frequency speed control using PLC. It is detailed to introduce the system's hardware construction, work principle and realizes with software, and give out flow chart concerning control software and PLC function diagram.