【正文】 to reduce losses, fire departments responsibility, so the study of efficient large fire pump control system can reduce property losses, and has certain practical values. control system’s work principle, the hardware design and software design. Thus transformed the traditional city watersupply system. Effective settlement the system publishes fault rate high, energy series waste such as these problems. Meanwhile, the system has automatic and manual two kinds of control way. Can be convenient maintain and repairing to the system. Raise the efficiency, realize automation supplies water. In this paper,The author descripts how to use Siemens S7200 PLC to contorl firefighting PLC can simplifiy the system structure,make the system more reliable,and proform fixed period main/backup pump switching and automatic testing that can never be realized before. Daily fire water pumping house control system adopts puter control technology, the core part adopts panasonic Siemens S7200 type of PLC, PLC of pump operation of various parameters on acquisition, processing, realize pump and pump, gate valve closure, and equipment through between set in the pump running PLC in various process parameters for acquisition, processing, realize pump and pump, gate valve closure, and equipment through between located in print, shows fault display centralized management. PC with superior management system and munication with the interface, and ore lans make superior management system to realize the fire water pump in daily monitoring. When missioning, field repair or set control system malfunction, but by in situ button box on button operation. Key words: PLC Fire pump Automatically Control 基于 PLC 的消防給水泵控制系統(tǒng)設(shè)計(jì) IV 目 錄 摘要 ................................................................................................................II Abstract ...................................................................................................... III 目錄 ...............................................................................................................IV 1 緒論 ............................................................................................................ 6 本課題研究設(shè)計(jì)背景和目的 .......................................................... 6 設(shè)計(jì)任務(wù)及內(nèi)容 .............................................................................. 2 設(shè)計(jì)任務(wù) ................................................................................ 2 設(shè)計(jì)內(nèi)容 ................................................................................ 2 2 可編程序控制器（ PLC）的概述 .............................................................. 3 PLC 的定義 ....................................................................................... 3 PLC 的特點(diǎn) ....................................................................................... 3 PLC 的一般組成和基本工作原理 ................................................... 4 PLC 的一般組成 ..................................................................... 4 PLC 的基本工作原理 ............................................................. 4 PLC 的應(yīng)用設(shè)計(jì)步驟 ....................................................................... 5 3 消防給水系統(tǒng)的特性及原理 .................................................................... 6 給水系統(tǒng)基本特性 .......................................................................... 6 給水系統(tǒng)實(shí)現(xiàn)方式 .......................................................................... 7 異步電動(dòng)機(jī)調(diào)速的方法及其原理 .................................................. 7 變極調(diào)速 ................................................................................ 8 變轉(zhuǎn)差調(diào)速 ............................................................................ 8 變頻調(diào)速 ................................................................................ 8 水泵調(diào)速運(yùn)行節(jié)能原理 .................................................................. 9 4 給水泵組及控制要求及控制系統(tǒng) ........................................................... 11 變頻給水泵組 ................................................................................. 11 泵組的控制要求 ............................................................................. 11 控制系統(tǒng)設(shè)計(jì) .................................................................................12 系統(tǒng)主回路 ...........................................................................12 系統(tǒng)的 PLC 的 I/O 接線圖 ...................................................12 系統(tǒng)的二次控制回路 ...........................................................13 控制柜面板指示燈回路 .......................................................13 可編程序控制器 PLC 的輸出輸入信號(hào) ...............................13 變頻器的控制回路 ...............................................................14 5 系統(tǒng)硬件選型 ...........................................................................................14 PLC ...................................................................................................14 變頻器 .............................................................................................15 水壓傳感器 .....................................................................................16 基于 PLC 的消防給水泵控制系統(tǒng)設(shè)計(jì) V 模擬量轉(zhuǎn)換模塊 .............................................................................16 電動(dòng)機(jī) .............................................................................................18 6 變頻器及電動(dòng)機(jī)參數(shù) ...............................................................................18 7 硬件連接 ...................................................................................................20 8 系統(tǒng) PID 設(shè)計(jì) ...........................................................................................21 9 系統(tǒng)程序 ...................................................................................................22 地址分配表 .....................................................................................22 梯形圖 ............................................................................................