6FX1127-3AD00+-+6FX1127-3AD00

6FX1127-3AD00+-+6FX1127-3AD00

為防止PLC和變頻器之間的控制信號線受空間電磁場的干擾，可在這些控制信號線的外層接屏蔽線，以提高系統(tǒng)的抗干擾能力。此種接線一定要注意，對屏蔽的接地點只能選取一點。不管是在PLC一邊，還是在變頻器的一邊。一般選在信號接收端，即變頻器一邊。這樣，可提高系統(tǒng)的抗干擾能力。如果屏蔽線在兩端都接地，會使屏蔽線上有電流流過，不但不能提高系統(tǒng)的抗干擾的能力，反而會加重外界對PLC的干擾。

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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】
商 務(wù) Q  Q： 2314094943
手      機：18030028083
Q Q 郵  箱：2314094943@qq.com
需要可以聯(lián)系絕對給你滿意的價格
公司地址：廈門市海滄區(qū)海滄街道濱湖一里7號2008室
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屏蔽線的接法遵守下面的原則
⒈ 屏蔽線盡量靠盡電勢低的一端，可以這么理解，一般我們認(rèn)為地電勢為“0”，而在事實情況下，如有兩個接地端，某一時刻兩個接地端會存在電勢差， 在兩個接電線之間將會有電流經(jīng)過，這也是一種干擾。
⒉ 在實際應(yīng)用中如果控制電纜經(jīng)過的場所比較復(fù)雜需要多端接地的時候,我們一般采取割斷屏蔽層,再不同的地方接地.較廠的控制設(shè)備通訊電纜屏蔽層接地也常采取這種方式。

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