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,

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