安川变频器676H5、656DC5 故障灯对应功率单元

1、H5或DC5报UV、UNBC故障时，可通过观察主控板上五盏指示灯的组合来判断对应的功率单元。

2、ex)- If the 3rd power module form the left has fault DS1 : ON, DS2 : OFF, DS4 : ON- If the 1st power module form the left has fault DS1 : ON, DS2 : OFF,