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QD75D2N

三菱變頻器通過保護(hù)功能檢測到有異常時，保護(hù)功能進(jìn)行工作，輸出異常輸出信號。但是，在三菱變頻器異常時，檢測電路或輸出電路發(fā)生故障等情況，不能輸出異常輸出信號。作為廠家希望品質(zhì)萬無一失，但是為了不因由于某些原因發(fā)生的三菱變頻器故障而導(dǎo)致設(shè)備受損等事故，采取使用三菱變頻器的各種狀態(tài)輸出信號的互鎖裝置，同時估計三菱變頻器發(fā)生故障時，不通過三菱變頻器，可以考慮在三菱變頻器外部設(shè)置故障自動保險系統(tǒng)。
一、利用三菱變頻器各種狀態(tài)輸出信號的互鎖方法。
配套使用三菱變頻器的各種狀態(tài)輸出信號，按以下方法通過采取連鎖裝置，可以檢測三菱變頻器的異常。
二、在三菱變頻器外部備份方法。
1、 啟動信號和實動作的檢查。
2、 指令速度的實動作速度的檢查。

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