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何工    

西门子NCU自检不通过维修，西门子NCU维修故障：
1.西门子840D数控系统西门子NCU开不了机，开机NCU不能启动。
2.西门子840D数控系统的NCU盒7段数码管没有显示，屏幕报警提示NCPLC未连接，（ncu和PCU都有问题）。
3.送电瞬间所有灯都亮，但是数码管无显示，然后所有灯瞬间变暗，POK灯熄灭，数码管不亮
4.NCU板子H1,H2灯全亮的故障
5.840D系统，现报2120号警（NCK风扇报警），更换了一块NCU盒后仍然出现2120报警--ncu坏了
6.840D系统NCU不能启动。西门子840D/DE数控伺服系统NCU主板维修型号：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.维修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
-----------------------------
维修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
------------------------------
维修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

数控控制主板6FC5357-0BB11-0AE0NCU571.2
数控控制主板6FC5357-0BB11-0AE1NCU571.3
数控控制主板6FC5357-0BB12-0AE0NCU571.4
数控控制主板6FC5357-0BB13-0AA0NCU571.3
数控控制主板6FC5357-0BB13-0AA1NCU571.3
数控控制主板6FC5357-0BB14-0AA0NCU571.4
数控控制主板6FC5357-0BB15-0AA0NCU571.5
数控控制主板6FC5357-0BB21-0AE0NCU572.2
数控控制主板6FC5357-0BB21-0AE1NCU572.2
数控控制主板6FC5357-0BB22-0AE0NCU572.3
数控控制主板6FC5357-0BB23-0AA0NCU572.3
数控控制主板6FC5357-0BB23-0AA1NCU572.3
数控控制主板6FC5357-0BB23-0AE0NCU572.4
数控控制主板6FC5357-0BB24-0AA0NCU572.4
数控控制主板6FC5357-0BB25-0AA0NCU572.5
数控控制主板6FC5357-0BB31-0AE0NCU573.2
数控控制主板6FC5357-0BB33-0AA0NCU573.3
数控控制主板6FC5357-0BB33-0AA1NCU573.3
数控控制主板6FC5357-0BB33-0AE0NCU573.2
数控控制主板6FC5357-0BB33-0AE1NCU573.2
数控控制主板6FC5357-0BB33-0AE2NCU573.3
数控控制主板6FC5357-0BB33-0AE3NCU573.3
数控控制主板6FC5357-0BB34-0AA0NCU573.4
数控控制主板6FC5357-0BB34-0AE0NCU573.4
数控控制主板6FC5357-0BB34-0AE1NCU573.4