【正文】
L1L2L3 FU1 FU2 KM1 KM2 SB1 SB2 SB3 KM1 KM2 U V W QS U L1 V L2 WL3 U L3 V L2 WL1 KM2 KM1 M 3~ 接觸器、按鈕雙重聯(lián)鎖正反轉(zhuǎn)控制線路 FR KM1 KM2 FR L1L2L3 FU1 FU2 KM1 KM2 SB1 SB2 SB3 KM1 KM2 U V W QS 合上電源開關(guān) QS KM2 KM1 FR KM1 KM2 FR M 3~ 接觸器、按鈕雙重聯(lián)鎖正反轉(zhuǎn)控制線路 L1L2L3 FU1 FU2 KM1 KM2 SB1 SB2 SB3 KM1 KM2 U V W QS 按下 SB1, SB1動(dòng)斷觸頭斷開 ,對 KM2聯(lián)鎖 SB1動(dòng)合觸頭閉合 , KM1線圈得電 KM2 KM1 FR KM1 KM2 FR M 3~ 接觸器、按鈕雙重聯(lián)鎖正反轉(zhuǎn)控制線路 L1L2L3 FU1 FU2 KM1 KM2 SB1 SB2 SB3 KM1 KM2 U V W QS KM1動(dòng)合輔助觸頭閉合 ,對 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 對 KM2聯(lián)鎖 KM