任務(wù)三--三相異步電動(dòng)機(jī)的正反轉(zhuǎn)控制線路教學(xué)課件

1、黃進(jìn)倉(cāng),三相異步電動(dòng)機(jī)正反轉(zhuǎn)控制線路,彬縣職教黃進(jìn)倉(cāng),黃進(jìn)倉(cāng),在實(shí)際生產(chǎn)中機(jī)床工作臺(tái)需要前進(jìn)與后退；萬(wàn)能銑床的主軸需要正轉(zhuǎn)與反轉(zhuǎn)；起重機(jī)的吊鉤需要上升與下降；正轉(zhuǎn)的控制線路能否滿足這些生產(chǎn)機(jī)械的控制要求？為什么？,黃進(jìn)倉(cāng),三相籠型異步電動(dòng)機(jī)正反轉(zhuǎn) 如何實(shí)現(xiàn),將接至交流電動(dòng)機(jī)的三相交流電源進(jìn)線中任意兩相對(duì)調(diào)，電動(dòng)機(jī)就可以反轉(zhuǎn),改變電源相序,任務(wù)3 正反向啟動(dòng)控制,黃進(jìn)倉(cāng),一、 倒順

2、開(kāi)關(guān)正反轉(zhuǎn)控制線路,倒順開(kāi)關(guān)，又叫可逆轉(zhuǎn)換開(kāi)關(guān)，利用改變電源相序來(lái)實(shí)現(xiàn)電動(dòng)機(jī)手動(dòng)正反轉(zhuǎn)控制。,黃進(jìn)倉(cāng),黃進(jìn)倉(cāng),一、倒順開(kāi)關(guān)正反轉(zhuǎn)控制線路,,,,,,,,,,,,,,,,,,,,,,,,L1 L2 L3,,,,,,,FU,QS,熔斷器,倒順開(kāi)關(guān),電動(dòng)機(jī),U,V,W,,,,,,,,,,M3~,黃進(jìn)倉(cāng),一、倒順開(kāi)關(guān)正反轉(zhuǎn)控制線路,,,,,,,,,,,,,,,,,,,,,,,,L1 L2 L3,,,,,,,FU

3、,QS,電動(dòng)機(jī)正轉(zhuǎn),U,V,W,,,,,,,,U —L1V —L2W—L3,M3~,熔斷器,,,,手柄扳至“順”位置,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,L1 L2 L3,,,,,,,FU,QS,熔斷器,,電動(dòng)機(jī)停轉(zhuǎn),U,V,W,,,,,,,,,,手柄扳至“?！蔽恢?M3~,一、倒順開(kāi)關(guān)正反轉(zhuǎn)控制線路,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,L1 L2 L3,,,,

4、,,,FU,QS,熔斷器,,電動(dòng)機(jī)反轉(zhuǎn),U,V,W,,,,,,,,,,手柄扳至“倒”位置,U —L3V —L2W—L1,M3~,一、倒順開(kāi)關(guān)正反轉(zhuǎn)控制線路,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,L1 L2 L3,,,,,,,FU,QS,熔斷器,,電動(dòng)機(jī)停轉(zhuǎn),U,V,W,,,,,,,,,,手柄扳至“?！蔽恢?M3~,一、倒順開(kāi)關(guān)正反轉(zhuǎn)控制線路,黃進(jìn)倉(cāng),二、接觸器聯(lián)鎖正反轉(zhuǎn)控制線路,利用兩個(gè)交流接觸器

5、交替工作，改變電源接入電動(dòng)機(jī)的相序來(lái)實(shí)現(xiàn)電動(dòng)機(jī)正反轉(zhuǎn)控制。,黃進(jìn)倉(cāng),L1----U L2----VL3----W,L1---WL2---VL3----U,二、接觸器聯(lián)鎖正反轉(zhuǎn)控制線路,利用交流接觸器，改變電源接入電動(dòng)機(jī)的相序來(lái)實(shí)現(xiàn)電動(dòng)機(jī)正反轉(zhuǎn)控制。,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,KH,U,V,W,QS,,,如

6、果KM1和KM2同時(shí)得電會(huì)怎么樣呢,二、接觸器聯(lián)鎖正反轉(zhuǎn)控制線路,主電路電源短路??！,,,,,,,,,,,,,,熔斷器熔斷,,,,黃進(jìn)倉(cāng),為防止兩個(gè)接觸器同時(shí)得電，主電路發(fā)生短路事故在控制電路中分別串接一對(duì)對(duì)方的輔助常閉觸頭,二、接觸器聯(lián)鎖正反轉(zhuǎn)控制線路,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,KH,SB2,SB3,SB1,KM1,KM2,KM1,KM2,KM2,KM1,,聯(lián)鎖觸頭,聯(lián)鎖觸頭,

7、,,當(dāng)一個(gè)接觸器得電動(dòng)作，通過(guò)其輔助常閉觸頭使另一個(gè)接觸器不能得電動(dòng)作，接觸器之間這種互相制約的作用叫做接觸器聯(lián)鎖或互鎖。,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,KH,SB2,SB3,SB1,KM1,KM2,KM1,KM

8、2,,,,,,KH,U,V,W,QS,KM2,KM1,,,,,二、接觸器聯(lián)鎖正反轉(zhuǎn)控制線路,如何實(shí)現(xiàn)電機(jī)“正轉(zhuǎn)—停止—反轉(zhuǎn)”？,低壓器件動(dòng)作過(guò)程如何？,黃進(jìn)倉(cāng),電源開(kāi)關(guān),反向起動(dòng)按鈕,正向起動(dòng)按鈕,停止按鈕,KM2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,FR,二、接觸

9、器聯(lián)鎖的正反轉(zhuǎn)控制線路,電動(dòng)機(jī),熔斷器,黃進(jìn)倉(cāng),,,KM2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,FR,接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,主電路,控制電路,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,

10、L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,黃進(jìn)倉(cāng),,,,,,,,,,,

11、,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,按正轉(zhuǎn)起動(dòng)按鈕SB1,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM

12、1,KM2,KM2,KM2,FR,,,,,正轉(zhuǎn),正轉(zhuǎn)控制,按正轉(zhuǎn)起動(dòng)按鈕SB1,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,,,,,,,,,,,,,正轉(zhuǎn),,按停止按鈕SB3,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

13、,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,,,,按停止按鈕SB3,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,,,

14、,停轉(zhuǎn),按停止按鈕SB3,黃進(jìn)倉(cāng),按停止按鈕SB3,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,停轉(zhuǎn),停轉(zhuǎn),L1,L2,L3,黃進(jìn)倉(cāng),接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,

15、L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,黃進(jìn)倉(cāng),接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,,,,,反轉(zhuǎn),,黃進(jìn)倉(cāng),接觸器聯(lián)鎖的正

16、反轉(zhuǎn)控制線路,KM2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,,,,,,,黃進(jìn)倉(cāng),接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,KM2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,

17、FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,,,,,,黃進(jìn)倉(cāng),接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,KM2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,,,停轉(zhuǎn),黃進(jìn)倉(cāng),接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,KM2,,,,,,,,,,

18、,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,KM2,FR,,,,,,停轉(zhuǎn),黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1,L2,L3,QS,FU,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,

19、KM2,FR,,,停轉(zhuǎn),接觸器聯(lián)鎖的正反轉(zhuǎn)控制線路,黃進(jìn)倉(cāng),正反轉(zhuǎn)控制線路,下圖所示的鼠籠式電動(dòng)機(jī)正反轉(zhuǎn)控制線路中有幾處錯(cuò)誤，請(qǐng)改正之。,,,,,,黃進(jìn)倉(cāng),,,L 1 L2 L3,KM2,,M,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,KM1,KM2,FR,SB3,SB1,SB2,KM1,KM1,KM1,KM2,KM2,FR,實(shí)驗(yàn)線路圖,黃進(jìn)倉(cāng),,

20、,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,電動(dòng)機(jī),熱繼電器,熱繼電器動(dòng)斷觸頭接線柱,,,,,,,,,交流接觸器,線圈,,,,,,按鈕,,L1 L2 L3,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,模擬實(shí)驗(yàn)室連接接觸器聯(lián)鎖正反轉(zhuǎn)控制電路,黃進(jìn)倉(cāng),1.

21、準(zhǔn)備工具和儀表。2.根據(jù)元件明細(xì)表清點(diǎn)各元件的數(shù)量并檢查各元件是否完好無(wú)損。3.根據(jù)原理圖設(shè)計(jì)并畫出安裝接線圖，作為安裝接線的依據(jù)。4.安裝固定元件，按圖接線。5.自檢。6.通電試車。,接觸器聯(lián)鎖正反轉(zhuǎn)電路的安裝步驟,黃進(jìn)倉(cāng),注 意 事 項(xiàng),1.異步電動(dòng)機(jī)和低壓電器的接線要正確，以確保用電安全。2.接線完畢經(jīng)檢查無(wú)誤后方可通電試車。3.通電試車時(shí)必須有老師現(xiàn)場(chǎng)監(jiān)護(hù)。4.安全操作，文明生產(chǎn)。,黃進(jìn)倉(cāng),元件明細(xì)表,黃進(jìn)倉(cāng),接

22、觸器聯(lián)鎖正反轉(zhuǎn)控制線路板,FR,黃進(jìn)倉(cāng),總結(jié),,1、三相籠型異步電機(jī)正反轉(zhuǎn)實(shí)現(xiàn)方法,2、互鎖、聯(lián)鎖的概念及實(shí)現(xiàn)方法,3、倒順開(kāi)關(guān)、接觸器正反轉(zhuǎn)電路,4、元件選擇與檢測(cè)及電路的安裝、調(diào)試,黃進(jìn)倉(cāng),作業(yè)：設(shè)計(jì)一扇電動(dòng)門，要求甲乙丙三個(gè)人同時(shí)在時(shí)才能打開(kāi)和關(guān)閉，但丁一個(gè)人也能打開(kāi)和關(guān)閉。1.畫出電氣原理圖；2.寫出工作過(guò)程。,黃進(jìn)倉(cāng),機(jī)械互鎖:利用復(fù)合按鈕的觸點(diǎn),實(shí)現(xiàn)同一時(shí)間里兩個(gè)接觸器,只允許一個(gè)工作。,,KMF,KMF,SBR,S

23、Bstp,KMR,,,,SBF,,,,,,KMR,,,,,,,,,,,,,,正轉(zhuǎn)按鈕,反轉(zhuǎn)按鈕,正轉(zhuǎn)線圈,反轉(zhuǎn)線圈,SBF,SBR,黃進(jìn)倉(cāng),為克服接觸器聯(lián)鎖正反轉(zhuǎn)控制電路和按鈕聯(lián)鎖正反轉(zhuǎn)控制電路的不足，在按鈕聯(lián)鎖的基礎(chǔ)上，又增加了接觸器聯(lián)鎖，就構(gòu)成按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制電路。,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

24、,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,U ---L1V ---L2W---L3,U ---L3V ---L2W---L1,,,,,,,,,,,,,,,KM2,KM1,M3~,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,黃

25、進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,合上電源開(kāi)關(guān)QS,,,,,,,,,,,,,,,KM2,KM1,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,

26、KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,按下SB2，SB2動(dòng)斷觸頭斷開(kāi),對(duì)KM2聯(lián)鎖SB2動(dòng)合觸頭閉合, KM1線圈得電,,

27、,,,,,,,,,,,,,KM2,KM1,,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W

28、,QS,KM1動(dòng)合輔助觸頭閉合,對(duì)KM1自鎖KM1動(dòng)合主觸頭閉合,電機(jī)正轉(zhuǎn)KM1動(dòng)斷觸頭斷開(kāi)對(duì)KM2聯(lián)鎖,,,,,,,,,,,,,,,KM2,KM1,,,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,

29、FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,松開(kāi)SB2,SB2動(dòng)斷觸頭閉合SB2動(dòng)合觸頭斷開(kāi)電機(jī)繼續(xù)正轉(zhuǎn)運(yùn)行,,,,,,,,,,,,,,,KM2,KM1,,,,,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

30、,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,按下SB1,使KM1線圈失電,各觸頭復(fù)位,,,,,,,,,,,,,,,KM2,KM1,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,

31、,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,松開(kāi)SB1,,,,,,,,,,,,,,,KM2,KM1,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,

32、,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,或按下SB3,SB3動(dòng)斷觸頭斷開(kāi),對(duì)KM1聯(lián)鎖, SB3動(dòng)合觸頭閉合,KM2線圈得電,,,,,,,,,,,,,,,KM2,KM1,,,三、按鈕、接觸器雙重

33、聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,KM2動(dòng)合輔助觸頭閉合,對(duì)KM2自鎖KM2動(dòng)合主觸頭閉

34、合,電機(jī)反轉(zhuǎn)KM2動(dòng)斷觸頭斷開(kāi)對(duì)KM1聯(lián)鎖,,,,,,,,,,,,,,,KM2,KM1,,,,,,,,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,

35、,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,松開(kāi)SB3,,,,,,,,,,,,,,,KM2,KM1,,,,,,,,,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1

36、,KM2,,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,按下SB1,KM2線圈失電，動(dòng)合輔助觸頭斷開(kāi),解除自鎖動(dòng)合主觸頭斷開(kāi)電機(jī)停轉(zhuǎn),,,,,,,,,,,,,,,KM2,KM1,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,黃進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

37、,,,,,,,,,,,,,,,,,,,,,,,,,,,,,L1L2L3,FU1,FU2,KM1,KM2,,,,,,,,,,,,,,SB2,SB3,SB1,KM1,KM2,,,,,,U,V,W,QS,也可直接按下SB3,SB3動(dòng)斷觸頭斷開(kāi),對(duì)KM1聯(lián)鎖,使KM1線圈失電,SB3動(dòng)合觸頭閉合,KM2線圈得電,,,,,,,,,,,,,,,KM2,KM1,,,三、按鈕、接觸器雙重聯(lián)鎖正反轉(zhuǎn)控制線路,FR,KM1,KM2,FR,M3~,,黃

38、進(jìn)倉(cāng),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,電動(dòng)機(jī),熱繼電器,熱繼電器動(dòng)斷觸頭接線柱,,,,,,,,,交流接觸器,線圈,,,,,,按鈕,,L1 L2 L3,,,,,,,模擬實(shí)驗(yàn)室連接按鈕、接觸器雙重聯(lián)鎖正轉(zhuǎn)控制電路,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,復(fù)合按鈕,黃進(jìn)倉(cāng),設(shè)計(jì)一個(gè)電路要求：