Intelligent controller used for variable-frequency constant-pressure water-supply water pump and control method for intelligent controller

Abstract

The invention discloses an intelligent controller used for a variable-frequency constant-pressure water-supply water pump and a control method for the intelligent controller. The controller comprises an MCU module, an A / D converter, a D / A converter, a real-time clock module, an operation monitoring module, a fault alarm module, a power supply module, a parameter setting module, a data storage module, a relay output module and a PI regulator, wherein the controller can be used for setting according to number of pumps in practical use; PI regulation can be carried out by acquiring outlet water pressure and a set value; and the purpose of supplying water under constant pressure is achieved by increasing and reducing pumps and regulating output of a frequency converter. Besides, the controller further has a sufficient protection function, and automatically displays a fault signal when the system has low liquid level, an under-pressure condition, a hyperpressure condition, frequency converter faults and the like, so that a user is a clear at a glance of the faults, and the system automatically resumes operation after faults are removed. A water pump variable-frequency constant-pressure water supply technology can guarantee variable-frequency constant-pressure water supply of communities, factories and mines, and the controller is reliable in operation; and moreover, energy consumption is low, manual intervention is not needed and production cost is reduced.

Description

technical field [0001] The invention belongs to the field of intelligent technology, and in particular relates to an intelligent controller and a control method for a variable frequency constant pressure water supply pump. Background technique [0002] With the development of urbanization, there are many high-rise buildings in the community. It is imperative to provide a stable and reliable water supply system for community users. Especially when the water consumption of users changes, it is especially important to provide stable water pressure output. [0003] The existing nixie tube display controller: the operation is complex, the code display is monotonous, and misoperation is prone to occur. [0004] Touch screen PLC controller: rich and beautiful pictures, but expensive, and need separate programming for touch screen and PLC, which requires high technical strength of production equipment manufacturers. Contents of the invention [0005] The present invention is to s...

AI Technical Summary

Problems solved by technology

[0003] Existing digital tube display controller: complex operation, monotonous code display, prone to misoperation

[0004] Touch screen PLC controller: the picture is rich and beautiful, but the price is expensive, and the touch screen and PLC need to be programmed separately, which requires high technical strength of the production equipment manufacturer

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