2711-K5A20【】2711-K5A20
2711-K5A20目前的經(jīng)濟(jì)性PLC和日系經(jīng)濟(jì)型編碼器很多就是這種“集電極開路信號(hào)”的。
集電極開路信號(hào)除了信號(hào)匹配性需要特別注意以外,由于沒有反相信號(hào)平衡,它的抗干擾能力較差,而對于感應(yīng)到的反向沖擊電壓很容易燒毀電路(例如電機(jī)啟動(dòng)瞬間產(chǎn)生的電磁場沖擊),這種信號(hào)是較低端的信號(hào),一般建議只用在小型加工設(shè)備(固定設(shè)計(jì)環(huán)境)的場合。
3),推挽式放大電路(HTL-3),編碼器特征也是10-30V的ABZ三根線,但是它是將集電極開路的NPN和PNP的放大電路疊加,形成“推拉放大”,因此它可以兼容PNP和NPN的接口,并且沒有上拉電阻的漏電流可能,另外它對于反向沖擊電壓有回路把沖擊能帶走,也不易燒毀電路。具有推挽式(也有叫推拉的,也有叫HTL的)信號(hào)的編碼器可以兼容連接集電極開路的PNP或者NPN接口。~~~~~~~~~~~~~~~~~~~~~~~~~~~~
公司 名稱:廈門泰尼電氣有限公司
固定 電話:0592-6809819
聯(lián) 系 人:張亮
傳 真:0592-6890859【請備注“張亮”收】
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手 機(jī):18030028083
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