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嘉寶和程寶
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樓主  發(fā)表于: 2017-03-24 18:24
我是用的溫控器PID控制電力調整器（可控硅）來(lái)加熱的，客戶(hù)要求加熱管損壞后有指示燈提示。
現在糾結的是，唯一可以想到的辦法就是檢測電流，如果加熱時(shí)沒(méi)電流就認為是斷路了來(lái)燈光提示。但保溫時(shí)同樣沒(méi)有電流，怎么來(lái)區分正常的沒(méi)電流和斷路？
求教各位了，最好發(fā)圖說(shuō)明。
leechonghua
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1樓  發(fā)表于: 2017-03-25 08:51
不知你的電力調功器是過(guò)零觸發(fā)還是移相觸發(fā)。過(guò)零觸發(fā)保溫有電流，移相觸發(fā)保溫可能無(wú)法測電流
樓主留言：
我也不清楚，你是什么思路？說(shuō)一下。

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