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西門子840D系統(tǒng)810004故障報警維修,西門子840D進不了系統(tǒng),NCU紅燈PS亮PF亮維修,西門子NCU數(shù)碼管顯示8,NCU數(shù)碼管跳到3不動,西門子NCU模塊上紅燈,西門子NCU數(shù)碼管顯示0,NCU數(shù)碼管顯示1維修,西門子NCU主板掉數(shù)據(jù),NCU主板風(fēng)扇不轉(zhuǎn)維修,2000PLC運行信息監(jiān)控報警,840D報3000急停故障,西門子840D系統(tǒng)報警120202通訊故障,NCU上電就顯示8,西門子NCU風(fēng)扇不轉(zhuǎn),NCU數(shù)字走到2就顯示108了,NCU顯示3,NCU數(shù)碼管循環(huán)顯示0、1、6 右邊一排燈全亮,第二天無顯示指示燈不亮,NCK風(fēng)扇故障2120,關(guān)機2天程序丟失,數(shù)碼管循環(huán)顯示109,數(shù)碼管不亮,ECU紅燈PLC停止故障,左邊指示燈全亮顯示106,PLC下程序報錯誤清單不能復(fù)位PLC內(nèi)存,840D驅(qū)動控制器顯示0,NCU上面2排燈全亮數(shù)碼管不亮故障,840D系統(tǒng)報故障維修,300500維修,300501故障,300502代碼,510205故障,主軸電機溫度高維修,700144E/R模塊溫度高維修,300613故障SP1驅(qū)動故障維修,西門子840D系統(tǒng)810004故障報警維修