HONEYWELL 51403427-175模塊,51403427-175中文PDF說明書在線閱讀
屏蔽處理所有GE Fanuc工廠制造的電纜均采用連續(xù)或100%屏蔽。這表示編織電纜屏蔽層連接至連接器的金屬外殼圍繞連接器的整個(gè)周長。這為機(jī)架接地，用于連接到電纜屏蔽上的任何噪聲能量。對(duì)于按圖10-18制作的定制長度電纜，可實(shí)現(xiàn)最佳抗噪性當(dāng)使用與電纜的編織和箔屏蔽和連接器外殼在終端上。僅將排流線焊接到連接器外殼是不夠的。
HONEYWELL 51403427-175模塊它要求電纜屏蔽層在整個(gè)長度上連續(xù)電纜，包括終端。下圖顯示了之前折疊編織屏蔽的推薦方法將電纜插入金屬蓋。對(duì)于典型的工業(yè)應(yīng)用，所有擴(kuò)展和遠(yuǎn)程基板電纜都可以由塑料外殼蓋制成，并應(yīng)按圖10-19所示接線。在任何一個(gè)在這種情況下，針腳1應(yīng)連接到自定義長度電纜和應(yīng)遵循以下所列的建議，對(duì)電纜中的Y形電纜進(jìn)行處理遠(yuǎn)程（IC693CHS392/399）基板。當(dāng)使用100%屏蔽電纜時(shí)，系統(tǒng)中的所有本地（CPU和擴(kuò)展）基板必須牢固地參照同一接地點(diǎn)或兩個(gè)接地點(diǎn)之間的電位差
基板可能會(huì)干擾信號(hào)傳輸。
Shield Treatment
All GE Fanuc factory made cables are made with a continuous, or 100% shield. This
means that the braided cable shield is connected to the metal shell of the connector
around the entire perimeter of the connector. This provides a low impedance path to
frame ground for any noise energy that is coupled onto the cable shield.
For custom length cables made per Figure 10-18, the best noise immunity is achieved
when using a metalized connector cover that makes contact with the cable’s braided and
foil shielding and with the connector shell on the terminating end.
Note
It is not sufficient to only solder the drain wire to the connector shell. It
is required that the cable’s shield be continuous across the entire length
of the cable, including at the terminations. The figure below shows the
recommended method for folding the braided shield back before
inserting the cable into a metallized cover.For typical industrial applications, all expansion and remote baseplate cables can be
made with plastic shell covers and should be wired as shown in Figure 10-19. In either
case, pin 1 should be wired into both ends of the custom length cable and the
recommendations listed below should be followed for the Wye cables treatment in the
remote (IC693CHS392/399) baseplates.
When using 100% shielded cables all local (CPU and expansion) baseplates in the system
must be solidly referenced to the same ground point or a potential difference between
baseplates could disturb signal transmission.
