光電隔離器の問題で相談です
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icc212の光電隔離器は入力に6MAの電源があり4.2Vで動作していますが、出力には常にMAが出ません。どうしてでしょうか？抵抗をつなげないといけないのでしょうか？
まずケーブルをすべて外し、信号発生器で信号を送って、アイソレーターが正常に動作しているか確認します。
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