基于plc和變頻器的花式噴泉的設(shè)計(jì) 畢業(yè)設(shè)計(jì)說明書-全文預(yù)覽
【正文】 PLC 是繼電器邏輯系統(tǒng)發(fā)展而來， 所以它在數(shù)學(xué)處理、順序控制方面具有一定優(yōu)勢(shì)。 1969 年美國(guó)數(shù)字設(shè)備公司（ DEC）研制出了世界上第一臺(tái)可編程控制器，人們把它稱為 PLC(Programmable Logic Controller)即可編程控制器?；ㄊ絿娙梢愿鶕?jù)自己的設(shè)計(jì)，設(shè)計(jì)出各種花樣，加上燈光，能給人們很好的視覺享受。市場(chǎng)的需求推動(dòng)了噴泉行業(yè)的發(fā)展。s responsibility! Fancy fountain is the product of the bination between garden architectural and fancy ornamental. With the rapid development of programmable controller in China , the control requirements of fancy fountain is being more and more strict, so more and more control section should need programmable controller to achieve. Fancy fountain uses a programmable logic controller (PLC) and the frequency converter, using software to control the fancy fountain and it can increase the reliability. The control system is simple and can be easily added .We also can change its control function. It provides functions of automatically detect the faults and alarm ,so it improves operational safety , and is easy to examine and maintain .Owing to its excellent performance ,starting and braking performance ,the fancy fountain can control the height of the water level. PLC programmable logic controller bined with frequency converter technology has bee a feature of the modern fountain industry. Key words PLC（ Programmable Logic Controller） fountain frequency converters trapezoidal diagram controlling pump 0 目次 1 緒論 .................................................................. 1 課題設(shè)計(jì)研究的內(nèi)容 ................................................. 2 課題設(shè)計(jì)研究的目的及意義 ........................................... 3 2 系統(tǒng)控制方案的確定 ................................................... 4 采用 PLC 控制花式噴泉的優(yōu)點(diǎn) ......................................... 5 系統(tǒng)設(shè)計(jì)的基本步 驟 ................................................. 5 系統(tǒng)控制的方案 ..................................................... 5 花式噴泉控制系統(tǒng)的原理圖 ........................................... 7 3 系統(tǒng)硬件軟件設(shè)計(jì) ..................................................... 8 PLC 的概述 ........................................................ 8 PLC 的選型 ........................................................ 8 變頻器的選擇 ...................................................... 10 水泵的選擇 ........................................................ 10 硬件接線圖 ........................................................ 11 I/O 分配表 ......................................................... 11 控制系統(tǒng)軟件設(shè)計(jì)概述 .............................................. 12 新 FX 編程軟件 (GX Developer Version 7)的操作方法 ................. 12 系統(tǒng)工作過程的順序功能圖 ........................................ 13 花式噴泉控制系統(tǒng)程序設(shè)計(jì) .......................................... 13 花式噴泉的第一種花樣 ............................................. 13 花式噴泉的第二種花樣 ............................................. 16 花式噴泉的第三種花樣 ............................................ 18 結(jié)論 .................................................................. 22 致謝 .................................................................. 23 參考文獻(xiàn) .............................................................. 24 附錄 A................................................................. 25 附錄 B................................................................. 26 1 1 緒
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