西門子840D數(shù)控系列NCU573.3不能啟動維修
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，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：
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西門子840D數(shù)控系列NCU573.3不能啟動維修
NCU 571.2數(shù)控主板 6FC5357-0BB11-0AE0
NCU 571.3 數(shù)控主板6FC5357-0BB11-0AE1
NCU 571.3數(shù)控主板6FC5357-0BB13-0AA0
NCU 571.3數(shù)控主板 6FC5357-0BB13-0AA1
NCU 571.4 數(shù)控主板 6FC5357-0BB14-0AA0
NCU 571.4 數(shù)控主板 6FC5357-0BB12-0AE0
NCU 571.5 數(shù)控主板 6FC5357-0BB15-0AA0
NCU 572.2 數(shù)控主板 6FC5357-0BB21-0AE0
NCU 572.2 數(shù)控主板 6FC5357-0BB21-0AE1
NCU 572.2 數(shù)控主板 6FC5357-0BB52-0AE0
NCU 572.3 數(shù)控主板 6FC5357-0BB22-0AE0
NCU 572.3數(shù)控主板 6FC5357-0BB23-0AA0
NCU 572.3 數(shù)控主板 6FC5357-0BB23-0AA1
NCU 572.4 數(shù)控主板6FC5357-0BB23-0AE0
NCU 572.4 數(shù)控主板 6FC5357-0BB24-0AA0
NCU 572.5 數(shù)控主板 6FC5357-0BB25-0AA0
NCU 573.2數(shù)控主板 6FC5357-0BB31-0AE0
NCU 573.2 數(shù)控主板6FC5357-0BB33-0AE0
NCU 573.2 數(shù)控主板6FC5357-0BB33-0AE1
NCU 573.2數(shù)控主板6FC5357-0BB53-0AE1
NCU 573.3數(shù)控主板6FC5357-0BB33-0AE2
NCU 573.3數(shù)控主板 6FC5357-0BB33-0AE3
NCU 573.3數(shù)控主板6FC5357-0BB33-0AA0
NCU 573.3 數(shù)控主板 6FC5357-0BB33-0AA1
NCU 573.4數(shù)控主板 6FC5357-0BB34-0AA0
NCU 573.4 數(shù)控主板 6FC5357-0BB34-0AE0
NCU 573.4 數(shù)控主板 6FC5357-0BB34-0AE1
NCU 573.5 數(shù)控主板 6FC5357-0BB35-0AA0
NCU 573.5數(shù)控主板 6FC5357-0BB35-0AE0
NCU 561.4數(shù)控主板6FC5356-0BB12-0AE0
NCU 573.5數(shù)控主板 6FC5357-0BB35-0AE0
NCU 561.5 數(shù)控主板6FC5356-0BB15-0AA0
NCU 571.5 數(shù)控主板 6FC5357-0BB15-0AA0
NCU 572.5數(shù)控主板 6FC5357-0BB25-0AA0
NCU 573.5 數(shù)控主板 6FC5357-0BB35-0AA
