西門子系統(tǒng)840D黑屏PCU50未啟動，840D維修，西門子數(shù)控機床840D開機顯示黑屏故障，PCU50也不啟動，風扇也不轉動，840D系統(tǒng)主板死機，840D按鍵全部不靈敏，按不動維修，指示燈也不亮維修，操作液晶屏顯示白屏，程序進不了系統(tǒng)。，一直停留在一個畫面，程序亂碼維修

西門子系統(tǒng)840D黑屏PCU50未啟動

840D維修，西門子數(shù)控機床840D開機顯示黑屏故障，PCU50也不啟動，風扇也不轉動，840D系統(tǒng)主板死機，840D按鍵全部不靈敏，按不動維修，指示燈也不亮維修，操作液晶屏顯示白屏，程序進不了系統(tǒng)。，一直停留在一個畫面，程序亂碼維修

西門子系統(tǒng)840D黑屏PCU50未啟動

西門子ncu維修故障：

1.西門子840d數(shù)控系統(tǒng)西門子ncu開不了機，開機ncu不能啟動。

2.西門子840d數(shù)控系統(tǒng)的ncu盒7段數(shù)碼管沒有顯示，屏幕報警提示nc\plc未連接，（ncu和pcu都有問題）。

3.送電瞬間所有燈都亮，但是數(shù)碼管無顯示，然后所有燈瞬間變暗，pok燈熄滅，數(shù)碼管不亮

4.ncu板子h1，h2燈全亮的故障

5.840d系統(tǒng)，現(xiàn)報2120號警（nck風扇報警），更換了一塊ncu盒后仍然出現(xiàn)2120報警--ncu壞了

6.840d系統(tǒng)ncu不能啟動。西門子840d/de數(shù)控伺服系統(tǒng)ncu主板維修型號：ncu573.5/ncu573.4/ncu573.3/ncu573.2/ncu573.5/ncu572.5/ncu572.4/ncu572.3/ncu572.2/ncu571.5/ncu571.4/ncu571.3/ncu571.2

-----------------------------

ncu571.26fc5357-0bb11-0ae0

ncu571.36fc5357-0bb11-0ae1

ncu571.36fc5357-0bb13-0aa0

ncu571.36fc5357-0bb13-0aa1

-----------------------------

ncu571.46fc5357-0bb14-0aa0

ncu571.46fc5357-0bb12-0ae0

ncu571.56fc5357-0bb15-0aa0

-----------------------------

ncu572.26fc5357-0bb21-0ae0

ncu572.26fc5357-0bb21-0ae1

ncu572.26fc5357-0bb52-0ae0

-----------------------------

ncu572.36fc5357-0bb22-0ae0

ncu572.36fc5357-0bb23-0aa0

ncu572.36fc5357-0bb23-0aa1

-----------------------------

ncu572.46fc5357-0bb23-0ae0

ncu572.46fc5357-0bb24-0aa0

ncu572.56fc5357-0bb25-0aa0

------------------------------

ncu573.26fc5357-0bb31-0ae0

ncu573.26fc5357-0bb33-0ae0

ncu573.26fc5357-0bb33-0ae1

ncu573.26fc5357-0bb53-0ae1

------------------------------

ncu573.36fc5357-0bb33-0ae2

ncu573.36fc5357-0bb33-0ae3

ncu573.36fc5357-0bb33-0aa0

ncu573.36fc5357-0bb33-0aa1

------------------------------

ncu573.46fc5357-0bb34-0aa0

ncu573.46fc5357-0bb34-0ae0

ncu573.46fc5357-0bb34-0ae1

------------------------------

ncu573.56fc5357-0bb35-0aa0

ncu573.56fc5357-0bb35-0ae0

ncu561.46fc5356-0bb12-0ae0

ncu573.56fc5357-0bb35-0ae0

ncu573.46fc5357-0bb34-0aa0

ncu573.46fc5357-0bb34-0ae0

ncu573.46fc5357-0bb34-0ae1

------------------------------

ncu573.36fc5357-0bb33-0ae2

ncu573.36fc5357-0bb33-0ae3

ncu573.36fc5357-0bb33-0aa0

ncu573.36fc5357-0bb33-0aa1

數(shù)控控制主板6fc5357-0bb11-0ae0ncu571.2

數(shù)控控制主板6fc5357-0bb11-0ae1ncu571.3

數(shù)控控制主板6fc5357-0bb12-0ae0ncu571.4

數(shù)控控制主板6fc5357-0bb13-0aa0ncu571.3

數(shù)控控制主板6fc5357-0bb13-0aa1ncu571.3

數(shù)控控制主板6fc5357-0bb14-0aa0ncu571.4

數(shù)控控制主板6fc5357-0bb15-0aa0ncu571.5

數(shù)控控制主板6fc5357-0bb21-0ae0ncu572.2

數(shù)控控制主板6fc5357-0bb21-0ae1ncu572.2

數(shù)控控制主板6fc5357-0bb22-0ae0ncu572.3

數(shù)控控制主板6fc5357-0bb23-0aa0ncu572.3

數(shù)控控制主板6fc5357-0bb23-0aa1ncu572.3

數(shù)控控制主板6fc5357-0bb23-0ae0ncu572.4

數(shù)控控制主板6fc5357-0bb24-0aa0ncu572.4

數(shù)控控制主板6fc5357-0bb25-0aa0ncu572.5

數(shù)控控制主板6fc5357-0bb31-0ae0ncu573.2

數(shù)控控制主板6fc5357-0bb33-0aa0ncu573.3

數(shù)控控制主板6fc5357-0bb33-0aa1ncu573.3

數(shù)控控制主板6fc5357-0bb33-0ae0ncu573.2

數(shù)控控制主板6fc5357-0bb33-0ae1ncu573.2

數(shù)控控制主板6fc5357-0bb33-0ae2ncu573.3

數(shù)控控制主板6fc5357-0bb33-0ae3ncu573.3

數(shù)控控制主板6fc5357-0bb34-0aa0ncu573.4

數(shù)控控制主板6fc5357-0bb34-0ae0ncu573.4

數(shù)控控制主板6fc5357-0bb34-0ae1ncu573.4