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PLC-based Control System for Constant Pressure Water Supply Inverter Design

TIAN Ya-juan,GUO Li-ying(Guangdong Songshan Vocational Technical Institute,Shaoguan 512126,China)  
Aiming at realizing constant pressure water supply,using the programmable logic controller(PLC) as the master,inverter as the executing agency,the hardware and software was developed for Frequency Constant Pressure Water Supply System.Precise data samplings of pressure on the pipe network were realized,the speed of a pump and pumps more than one input or exit was adjusted automatically to the backbone network of the pressure of the exit tube remained framework of a certain.Water control system inoperation,the various indicators achieve the design requirements to meet the needs of residents and industrial water.
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