產(chǎn)品詳情內(nèi)容介紹
ABB 085221-050控制數(shù)據(jù)輸入輸出模塊
模擬輸出可以連接到電壓輸入設(shè)備（例如。圖表記錄器），包括一個與每個回路，并將設(shè)備輸入與電阻器并聯(lián)。即。
使用100歐姆電阻器，并在圖表上選擇2伏的輸入范圍錄音機(jī)有兩個遠(yuǎn)程輸入，分別為RESET和INHIBIT可配置為高激活或低激活操作模式。每個輸入都是四通道控制卡的所有四個通道通用。
檢查隨系統(tǒng)提供的配置表，用于確定工廠配置的操作模式。
可以重新配置操作模式輕松使用連接到工程端口的計算機(jī)。
聯(lián)系Zellweger Analytics或您當(dāng)?shù)氐拇砹私飧嘈畔ⅰ?/p>
遠(yuǎn)程輸入引腳的開關(guān)電平（啟用時）為相對于直流系統(tǒng)0V，約+2V。
輸入需要驅(qū)動電流小于5mA且與內(nèi)部配置無關(guān)降到系統(tǒng)0V。
激活的高遠(yuǎn)程輸入可能未連接或可以連接通過常開觸點(diǎn)至+24V。遠(yuǎn)程輸入將運(yùn)行只要觸點(diǎn)閉合。
有源低電平遠(yuǎn)程輸入可通過正常方式連接至+24V閉合觸點(diǎn)。
遠(yuǎn)程輸入將在觸點(diǎn)打開。
請勿讓低輸入處于活動狀態(tài)，未連接的直流電源通過直流輸入卡端子連接至系統(tǒng)57塊TB1并通過四繼電器接口卡。
直流輸入卡提供二極管隔離，以允許連接兩個獨(dú)立的電源。
例如，電源衍生的直流電源和電池備用直流電源。
注意，電流將從電源中抽出輸入最高電壓，在某些情況下電流將為在兩個輸入之間共享。
兩個輸入端都有雙+24V和0V端子，便于通過電源連接或并聯(lián)輸入源。
保險絲+24V輸出是兩個直流輸入的組合提供用于為輔助設(shè)備供電的獨(dú)立供電控制卡
注：1.在單獨(dú)供電的控制系統(tǒng)中，直流連接是仍需要直流輸入卡，以便為工程卡。
2.每個控制卡的電源必須為外部熔斷器額定值最大2A。
由于兩個原因，可能需要單獨(dú)供電的控制卡：a、 如果當(dāng)?shù)鼗蚱渌ㄒ?guī)要求在以實(shí)現(xiàn)配電的最高完整性。
b、 在人口稠密的機(jī)架中，以減少底板。
f25 System 57 DC Input Card（系統(tǒng)57直流輸入卡）電源在10A時熔斷，以確保系統(tǒng)可靠運(yùn)行，最大持續(xù)電流流入機(jī)架背板應(yīng)小于8A。
在16通道機(jī)架中，大量填充了四通道催化控制卡底板電流可能會超過，特別是在傳感器電纜較長的地方運(yùn)行存在。
因此，一般來說，如果超過8個催化控制卡用在單個機(jī)架中，應(yīng)為其供電使用單獨(dú)供電方案。
REMOTE INPUT CONNECTIONS
The analogue outputs can be connected to voltage input device (eg. chart recorders) by including an external sense resistor in series with each loop and connecting the device input in parallel with the resistor. ie. Use a 100 ohm resistor and select an input range of 2V on the chart recorder.There are two remote inputs, RESET and INHIBIT, which are individually configurable for active high or active low operating modes. Each input is common to all four channels of the Four Channel Control Card. Check the configuration sheet supplied with the system to determine the factory configured operating modes. The operating mode can be reconfigured easily using a computer attached to the Engineering Port. Contact Zellweger Analytics or your local agent for more information. The switching level of the remote input pins (when enabled) is approximately +2V with respect to the dc system 0V. The inputs require less than 5mA drive current and irrespective of configuration are internally pulled down to system 0V. Active high remote inputs may be left unconnected or can be connected to +24V via a normally open contact. The remote input will operate whenever the contact closes. Active low remote inputs may be connected to +24V via a normally closed contact. The remote input will operate whenever the contact opens. Do not leave active low inputs unconnected.
Individually Powered Control Cards
Notes: 1. In individually powered control systems a DC connection is still required to the DC Input Card in order to provide power to the Engineering Card. 2. The supply to each control card must be externally fuse rated at 2A maximum. Individually powered control cards may be required for two reasons: a. Where the local or other regulations dictate individual connections in order to achieve the highest integrity for power distribution. b. In densely populated racks to reduce the current load on the backplane. The System 57 DC Input Card supply is fused at 10A and to ensure reliable operation of the system, the maximum continuous current flow in the rack backplane should be less than 8A. In 16 channel racks, substantially populated with four channel catalytic control cards, this backplane current can be exceeded, especially where long sensor cable runs are present. Therefore, as a general rule, where more than eight catalytic control cards are used in a single rack, these should be powered using the individually powered scheme. DC power is connected to the System 57 via the DC Input Card terminal block TB1 and via the Quad Relay Interface Cards. The DC Input Card provides diode isolation to permit the connection of two separate power supplies. eg. A mains derived dc power supply and battery backup dc supply. Note that current will be drawn from the supply input with the highest voltage and in some circumstances current will be shared between the two inputs. Each of the two inputs have twin +24V and 0V terminals for easy through power connection or paralleling of input sources. A fused +24V output, which is the combination of both dc inputs, is provided for powering ancillary devices
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