CROWN 3099-WQ
CROWN 3099-WQ
CROWN 3099-WQ
CROWN 3099-WQ撤掉直流電源,進行對齊驗證:
1.用示波器觀察旋變的SIN信號和電機的UV線反電勢波形;
2.轉動電機軸,驗證旋變的SIN信號包絡過零點與電機的UV線反電勢波形由低到高的過零點重合。 這個驗證方法,也可以用作對齊方法。
此時SIN信號包絡的過零點與電機電角度相位的-30度點對齊。
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