西门子MM20变频6SE6420-2UC11-2AA1

6SE6420-2UC11-2AA1

6SE6420-2UC11-2AA1

单相变频器怎么接输入线：

　　三相输入变频器的输入一般是R、S、T三个端子，连接时不分相序。

　　只标注了R、T的变频器，是单相输入变频器，一根接火线，一个接零线，零、火线不作区分，任意接。

　　另外，某些变频器标注了R、S、T三个输入端子，也允许采用单相输入，此时，任意选两个端子接AC220V即可，零、火线不作区分，任意接。

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