IS200TREAH2AED燃機卡件,IS200TREAH2AED使用說明
電子單元在用于壁裝的外殼中交付。選擇安裝位置時，請確保有足夠的空間打開完全關閉外殼蓋。還要檢查機柜前面是否有足夠的工作空間。外殼配有13個電纜密封套。接地PFEA113-20的金屬底部連接到作為張緊電子接地連接器。這是為了確保內部邏輯和EMI抗擾度以及電子設備的射頻發射。DIN導軌必須與機柜的PE（保護接地）良好連接。
IS200TREAH2AED燃機卡件為了達到最佳的耐腐蝕性，DIN導軌應鍍鉻，以便例如，經過黃鉻處理。將星形墊圈與用于將導軌固定至安裝板的每個螺釘一起使用。為了將DIN導軌固定到安裝板上，最小螺釘直徑為5 mm，并且螺釘之間的最大距離為100 mm。為了無故障運行，必須正確接地。注意以下幾點：?如果自由（未屏蔽）長度超過0.1 m（4 in.）單個電源對信號導體必須單獨絞合?外部保護接地（PE）電纜必須連接到一個接地棒螺釘上夾具。?所有電纜屏蔽必須連接到接地棒和屏蔽長度連接必須小于50毫米（2英寸）。注釋電纜屏蔽層必須僅在一端接地。?由于測量系統的信號接地連接到張力電子裝置是連接到控制系統的高級系統的輸入不得接地。將測量系統和實現最佳功能的優越系統如圖2-6和圖2-7所示。The electronic unit is delivered in an enclosure intended for wall mounting.
When choosing a place for installation, make sure that there is enough space to open the
enclosure lid fully. Also check that there is enough working space in front of the enclosure.
The enclosure is fitted with 13 cable glands.Earthing
The metal bottom of PFEA113-20 connects to the metallic DIN-rail which serves as the
Tension Electronics earth connector.
This is to ensure a good earth connection both for internal logic and for the EMI immunity and
RF emission of the electronics.
The DIN-rail must have a good connection to the PE (Protective Earth) of the cabinet.
To achieve the best possible corrosion resistance, DIN-rails should be chromium plated, for
instance, yellow chromium treated. Use star washers with each screw used to fasten the DINrail to the mounting plate.
To fasten the DIN-rail onto the mounting plate, the minimum screw diameter is 5 mm and the
maximum distance between screws is 100 mm.For trouble free operation, the earthing must be properly done. Note the following:
? If the free (unscreened) length exceeds 0.1 m (4 in.) the individual pairs of power
and signal conductors must be twisted separately
? The external protective earth (PE) cable must be attached to one of the earthbar screw
clamps.
? All the cable screens have to be connected to the earth bar and the length of the screen
connection must be less than 50 mm (2 in.).
NOTE
The cable screens must be earthed at one end only.
? Since the signal earth of the measurement system is connected to the chassis earth of
the tension electronics, the input of a superior system connected to the control system
must not be earthed. The best ways of interconnecting the measurement system and a
superior system to achieve optimal function are shown in Figure 2-6 and Figure 2-7.
