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1336F-B020-AE-EN交流傳動(dòng)模塊備件

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1336F-B020-AE-EN交流傳動(dòng)模塊備件

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型號(hào):1336F-B020-AE-EN
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主營(yíng)DCS控制系統(tǒng)備件,PLC系統(tǒng)備件及機(jī)器人系統(tǒng)備件,
優(yōu)勢(shì)品牌:Allen Bradley、BentlyNevada、ABB、Emerson Ovation、Honeywell DCS、Rockwell ICS Triplex、FOXBORO、Schneider PLC、GE Fanuc、Motorola、HIMA、TRICONEX、Prosoft等各種進(jìn)口工業(yè)零部件


1336F-B020-AE-EN交流傳動(dòng)模塊備件 1336F-B020-AE-EN交流傳動(dòng)模塊備件 1336F-B020-AE-EN交流傳動(dòng)模塊備件 1336F-B020-AE-EN交流傳動(dòng)模塊備件 1336F-B020-AE-EN交流傳動(dòng)模塊備件

1336F-B020-AE-EN交流傳動(dòng)模塊備件
本系統(tǒng)中選用臺(tái)達(dá)VFD-M和B系列的變頻器。根據(jù)人機(jī)界面上控制的轉(zhuǎn)速設(shè)定,輸出4~20mA的信號(hào)以調(diào)節(jié)電機(jī)的轉(zhuǎn)速,變頻器的運(yùn)行需要和PLC進(jìn)行MODBUS通信來(lái)確定是否啟動(dòng)或停止。
4 控制系統(tǒng)的軟件設(shè)計(jì)
4.1 軟件設(shè)計(jì)的基本要求
操作功能主要是方便操作,需要人機(jī)對(duì)話界面。系統(tǒng)的規(guī)模越大,自動(dòng)化程度越高,要求也越復(fù)雜,比如下拉式菜單設(shè)計(jì)、趨勢(shì)報(bào)警、I/O信息的顯示以及有關(guān)數(shù)據(jù)、表格的更新存儲(chǔ)和輸出等。圖4為設(shè)計(jì)的乳化鍋人機(jī)界面。

圖4 乳化鍋人機(jī)界面
4.2 I/O信號(hào)及數(shù)據(jù)結(jié)構(gòu)分析
工業(yè)現(xiàn)場(chǎng)的檢測(cè)信號(hào)是多種多樣的,有模擬量也有開(kāi)關(guān)量,PLC就以這些現(xiàn)場(chǎng)的數(shù)據(jù)作為對(duì)被控對(duì)象進(jìn)行控制的源信息。通過(guò)對(duì)PLC的工作現(xiàn)場(chǎng)數(shù)據(jù)進(jìn)行分析,確定了每一個(gè)I/O信號(hào)的地址。依據(jù)生產(chǎn)過(guò)程從前至后,I/O點(diǎn)數(shù)由小到大的原則把I/O信號(hào)集中編址。部分I/O信號(hào)的分配見(jiàn)表2。
表2 I/O信號(hào)的分配表

4.3 溫度控制
乳化機(jī)的溫度控制系統(tǒng)是以三個(gè)鍋的溫度為被控制參數(shù),冷卻水流量為控制參數(shù)的回路控制。由于鍋溫系統(tǒng)是具有大滯后和時(shí)變性的系統(tǒng),被調(diào)量不能及時(shí)反映系統(tǒng)受到的擾動(dòng),調(diào)節(jié)器的動(dòng)作需經(jīng)過(guò)一定的滯后時(shí)間才能影響被調(diào)量,經(jīng)常會(huì)引起系統(tǒng)的響應(yīng)超調(diào)過(guò)大或發(fā)生振蕩,導(dǎo)致系統(tǒng)過(guò)渡到其他操作狀態(tài),用常規(guī)PID控制很難得到滿意的控制結(jié)果。
本控制系統(tǒng)采用臺(tái)達(dá)公司的DVP48EH00R系列的PLC為核心部件,實(shí)現(xiàn)恒溫控制,控制系統(tǒng)的原理框圖如圖5所示[5]。PLC根據(jù)采集的信號(hào)計(jì)算出偏差e(t)和偏差變化率ec(t),按照模糊PID的控制規(guī)則計(jì)算控制量u(t),并輸出控制量u(t)。經(jīng)過(guò)PLC的D/A轉(zhuǎn)換,變成4~20mA的電流信號(hào),送到調(diào)節(jié)閥來(lái)調(diào)節(jié)蒸汽或者冷卻水的流量,實(shí)現(xiàn)系統(tǒng)溫度的智能控制。commercial area and public activity area in the core urban area. The first phase of the project is 14.35 kilometers, which was put into trial operation in November 2004 and officially put into operation in June 2005. The second phase of the project is 4.7 kilometers from Dayan village to Xinshan village and began to operate on July 1, 2006. The operation time of the whole line of line 2 is 34 minutes.

Chongqing Light Rail Line 2 is equipped with 15 ground stations, 3 underground stations and a control center (OCC) building. At the initial stage of phase I project, there are 21 trains and 84 vehicles (four cars per train, and up to 8 cars can be added in the long term according to the passenger flow). After the completion of the whole line, the maximum one-way passenger transport capacity of 30000 person times / hour can be formed, the annual passenger transport volume can reach 200 million person times, and the total investment of the whole line project is 4.3 billion yuan.

Different from ordinary light