信號(hào)隔離器工作原理是什么？首先將PLC接收的信號(hào)，通過(guò)半導(dǎo)體器件調(diào)制變換，然后通過(guò)光感或磁感器件進(jìn)行隔離轉(zhuǎn)換，然后再進(jìn)行解調(diào)變換回隔離前原信號(hào)或不同信號(hào)，同時(shí)對(duì)隔離后信號(hào)的供電電源進(jìn)行隔離處理。保證變換后的信號(hào)、電源、地之間*獨(dú)立。
　　信號(hào)隔離器功能是什么？保護(hù)下級(jí)的控制回路。消弱環(huán)境噪聲對(duì)測(cè)試電路的影響。抑制公共接地、變頻器、電磁閥及不明脈沖對(duì)設(shè)備的*；同時(shí)對(duì)下級(jí)設(shè)備具有限壓、額流的功能是變送器、儀表、變頻器、電磁閥PLC/DCS輸入輸出及通訊接口的忠實(shí)防護(hù)。標(biāo)準(zhǔn)系列導(dǎo)軌結(jié)構(gòu)，易于安裝，可有效的隔離：輸入、輸出和電源及大地之間的電位。能夠克服變頻器噪聲及各種高低頻脈動(dòng)*。

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