IS200TREAH2AED燃機(jī)卡件,IS200TREAH2AED使用說(shuō)明
電子單元在用于壁裝的外殼中交付。選擇安裝位置時(shí)，請(qǐng)確保有足夠的空間打開(kāi)完全關(guān)閉外殼蓋。還要檢查機(jī)柜前面是否有足夠的工作空間。外殼配有13個(gè)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(nèi)部邏輯和EMI抗擾度以及電子設(shè)備的射頻發(fā)射。DIN導(dǎo)軌必須與機(jī)柜的PE（保護(hù)接地）良好連接。
IS200TREAH2AED燃機(jī)卡件為了達(dá)到最佳的耐腐蝕性，DIN導(dǎo)軌應(yīng)鍍鉻，以便例如，經(jīng)過(guò)黃鉻處理。將星形墊圈與用于將導(dǎo)軌固定至安裝板的每個(gè)螺釘一起使用。為了將DIN導(dǎo)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(wú)故障運(yùn)行，必須正確接地。注意以下幾點(diǎn)：?如果自由（未屏蔽）長(zhǎng)度超過(guò)0.1 m（4 in.）單個(gè)電源對(duì)信號(hào)導(dǎo)體必須單獨(dú)絞合?外部保護(hù)接地（PE）電纜必須連接到一個(gè)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(zhǎng)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(cè)量系統(tǒng)的信號(hào)接地連接到張力電子裝置是連接到控制系統(tǒng)的高級(jí)系統(tǒng)的輸入不得接地。將測(cè)量系統(tǒng)和實(shí)現(xiàn)最佳功能的優(yōu)越系統(tǒng)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.
