課題三--位置控制與自動(dòng)往返控制線路解析電子教案

1、課題三-位置控制與自動(dòng)往返控制線路解析L1L2L3FU1FU2KM1KM2FRSB1SB2SB3KM1KM2KM1FRUVWQSKM2KM1SQ1SQ2KM2SQ1SQ2M3行車(chē)電路組電路組成分析成分析L1L2L3KM1KM2FRSB1SB2SB3KM1KM2KM1FRUVWKM2KM1SQ1SQ2KM2SQ1SQ2行車(chē)合上電合上電源開(kāi)關(guān)源開(kāi)關(guān)QSFU1FU2QSM3L1L2L3KM1KM2FRSB1SB2SB3KM1KM2KM1FRUVWKM2KM1SQ1SQ2KM2SQ1SQ2行車(chē)按下按下SB1FU1FU2QSM3L1L2L3KM1KM2FRSB1SB2SB3KM1KM2KM1FRUVWK

2、M2KM1SQ1SQ2KM2SQ1SQ2電動(dòng)機(jī)電動(dòng)機(jī)正轉(zhuǎn)正轉(zhuǎn)行車(chē)向前向前FU1FU2QSM3L1L2L3KM1KM2FRSB1SB2SB3KM1KM2KM1FRUVWKM2KM1SQ1SQ2KM2SQ1SQ2松開(kāi)松開(kāi)SB1行車(chē)向前向前FU1FU2QSM3L1L2L3KM1KM2FRSB1SB2SB3KM1KM2KM1FRUVWKM2KM1SQ1SQ2KM2SQ1SQ2擋鐵碰擋鐵碰撞撞SQ1行車(chē)停止停止FU1FU2QSM3L1L2L3KM1KM2FRSB1SB2SB3KM1KM2KM1FRUVWKM2KM1SQ1SQ2KM2SQ1SQ2按下按下SB2向后向后行車(chē)FU1FU2QSM3L1L2L3K

3、M1KM2FRSB1SB2SB3KM1KM2KM1FRUVWKM2KM1SQ1SQ2KM2SQ1SQ2擋鐵碰擋鐵碰撞撞SQ2行車(chē)停止停止FU1FU2QSM3二、自動(dòng)往返控制線路 有些設(shè)備的工作臺(tái)要在一定距離能自動(dòng)循有些設(shè)備的工作臺(tái)要在一定距離能自動(dòng)循環(huán)往返，可用行程開(kāi)關(guān)達(dá)到目的，實(shí)質(zhì)上是用環(huán)往返，可用行程開(kāi)關(guān)達(dá)到目的，實(shí)質(zhì)上是用行程開(kāi)關(guān)控制電動(dòng)機(jī)正反轉(zhuǎn)。行程開(kāi)關(guān)控制電動(dòng)機(jī)正反轉(zhuǎn)。自動(dòng)往返控制線路自動(dòng)往返控制線路L1L2L3KM1KM2FRSB2SB3SB1KM1KM2KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4FU1FU2QSM3L1L2L3KM1KM2F

4、RSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4合上電源開(kāi)關(guān)合上電源開(kāi)關(guān)QSFU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4按下按下SB2， KM1線圈得電線圈得電FU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4KM1動(dòng)合輔助觸頭動(dòng)合輔助觸頭閉合，對(duì)閉合，對(duì)KM1自鎖自鎖動(dòng)合主觸頭閉合動(dòng)合主觸頭閉合電機(jī)正轉(zhuǎn)電機(jī)正轉(zhuǎn)KM1

5、動(dòng)斷觸頭斷開(kāi)動(dòng)斷觸頭斷開(kāi)對(duì)對(duì)KM2聯(lián)鎖聯(lián)鎖FU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4松開(kāi)松開(kāi)SB2電動(dòng)機(jī)繼電動(dòng)機(jī)繼續(xù)正轉(zhuǎn)續(xù)正轉(zhuǎn)FU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4擋鐵碰擋鐵碰SQ1，SQ1動(dòng)斷觸頭斷開(kāi)動(dòng)斷觸頭斷開(kāi)KM1線圈失電線圈失電KM1動(dòng)合主觸頭斷動(dòng)合主觸頭斷開(kāi)，電機(jī)停轉(zhuǎn)開(kāi)，電機(jī)停轉(zhuǎn)KM1動(dòng)合觸頭斷開(kāi)動(dòng)合觸頭斷開(kāi)解除對(duì)解除對(duì)KM1自鎖自鎖KM1動(dòng)斷觸頭

6、閉合動(dòng)斷觸頭閉合解除對(duì)解除對(duì)KM2聯(lián)鎖聯(lián)鎖FU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4SQ1動(dòng)合觸頭閉動(dòng)合觸頭閉合合KM2線圈得電線圈得電FU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4KM2動(dòng)斷觸頭斷開(kāi)動(dòng)斷觸頭斷開(kāi)對(duì)對(duì)KM1聯(lián)鎖聯(lián)鎖KM2動(dòng)合觸頭閉合動(dòng)合觸頭閉合對(duì)對(duì)KM2自鎖自鎖KM2動(dòng)合主觸頭閉動(dòng)合主觸頭閉合，電動(dòng)機(jī)反轉(zhuǎn)合，電動(dòng)機(jī)反轉(zhuǎn)工作向右運(yùn)動(dòng)工作向右運(yùn)動(dòng)FU1F

7、U2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4SQ1復(fù)原復(fù)原工作臺(tái)繼續(xù)向右運(yùn)工作臺(tái)繼續(xù)向右運(yùn)動(dòng)動(dòng)FU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4擋鐵碰擋鐵碰SQ2SQ2動(dòng)斷觸頭斷開(kāi)動(dòng)斷觸頭斷開(kāi)KM2失電失電KM2動(dòng)合主觸頭斷動(dòng)合主觸頭斷開(kāi)，電機(jī)停轉(zhuǎn)開(kāi)，電機(jī)停轉(zhuǎn)KM2動(dòng)合觸頭斷開(kāi)動(dòng)合觸頭斷開(kāi)解除對(duì)解除對(duì)KM2自鎖自鎖KM2動(dòng)斷觸頭閉合動(dòng)斷觸頭閉合解除對(duì)解除對(duì)KM1聯(lián)鎖聯(lián)鎖FU1FU

8、2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4擋鐵碰擋鐵碰SQ2SQ2動(dòng)合觸頭閉合動(dòng)合觸頭閉合KM1線圈得電線圈得電FU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4KM2SQ1SQ2SQ3SQ4KM1動(dòng)合輔助觸頭動(dòng)合輔助觸頭閉合，對(duì)閉合，對(duì)KM1自鎖自鎖KM1動(dòng)合主觸頭閉動(dòng)合主觸頭閉合合,電機(jī)正轉(zhuǎn)電機(jī)正轉(zhuǎn)KM1動(dòng)斷觸頭斷開(kāi)動(dòng)斷觸頭斷開(kāi)對(duì)對(duì)KM2聯(lián)鎖聯(lián)鎖FU1FU2QSSB1KM2M3L1L2L3KM1KM2FRSB2SB3KM1KM1FRUVWKM2KM1SQ1SQ3SQ2SQ4K