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【单选题】
变频器的几个关键参数设置如下:P0700=1,P1000=1,P0701=17,P0702=17,P0703=17,P1001=18,P1002=28,P1003=38,那么同时拨动5脚和6脚:A.
输出18HZ频率
B.
输出28HZ频率
C.
输出38HZ频率
D.
变频器无频率输出
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