Design of Constant Pressure Water Supply System Based on PLC and Inverter
The constant pressure water supply system is designed by combining PLC and inverter,according to the water pressure of the collected pipe network,the A/D conversion is sent to the PLC,and the output signal is output to control the output voltage and frequency of the frequency converter after the PID operation of the PLC,and the speed of the motor is changed to change the water supply,and finally the water pressure value of the pipe network is stabilized at a constant value.Practice has proved that the system is stable and reliable,and also has a good energy-saving effect.
PLCPIDfrequency converterconstant pressure water supply system
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