【正文】
3~ KM1動合輔助觸頭閉合 ,對 KM1自鎖 KM1動合主觸頭閉合 ,電機正轉(zhuǎn) KM1動斷觸頭斷開對 KM2聯(lián)鎖 L1L2L3 FU1 FU2 KM1 KM2 SB2 SB3 SB1 KM1 KM2 U V W QS KM2 KM1 FR KM1 KM2 FR M 3~ 松開 SB2 SB2動斷觸頭閉合 SB2動合觸頭斷開電機繼續(xù)正轉(zhuǎn)運行 L1L2L3 FU1 FU2 KM1 KM2 SB2 SB3 SB1 KM1 KM2 U V W QS KM2 KM1 按下 SB1,使 KM1線圈失電 ,各觸頭復(fù)位 FR KM1 KM2 FR M 3~ L1L2L3 FU1 FU2 KM1 KM2 SB2 SB3 SB1 KM1 KM2 U V W QS KM2 KM1 松開 SB1 FR KM1 KM2 FR M 3~ L1L2L3 FU1 FU2 KM1 KM2 SB2 SB3 SB1 KM1 KM2 U V W QS KM2 KM1 按下 SB3 SB3動斷觸頭斷開 ,對 KM1聯(lián)鎖 , SB3動合觸頭閉合 ,KM2線圈