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海洋一舟
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樓主  發(fā)表于: 2011-03-06 10:01
請教大家,我要用變頻器控制一個(gè)一匹的電機正反轉,正反轉間隔的時(shí)間大概是30秒,我想從變頻器輸出端接兩個(gè)接觸器改變相序來(lái)達到正反轉,這樣做要接剎車(chē)電阻嗎,加減速兩秒鐘這樣,謝謝
龐樹(shù)恒
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1樓  發(fā)表于: 2011-03-06 11:24
一般都有正反轉的端子，沒(méi)有的話(huà)你就轉換速度指令的電壓方向。如果制動(dòng)要求不高，可以不接電阻

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