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DATAFORTH模擬電壓輸入模塊SCM5B30-03介紹

每個 SCM5B30 和 SCM5B31 電壓輸入模塊均提供單通道模擬輸入，經(jīng)濾波、隔離、放大后轉(zhuǎn)換為高電平模擬電壓輸出。該電壓輸出由邏輯開關(guān)控制，允許這些模塊共享公共模擬總線，無需外部多路復(fù)用器。

SCM5B模塊采用完全隔離的計算機(jī)側(cè)電路設(shè)計，該電路可與電源公共端（引腳 16）浮動至 ±50V。這種完全隔離意味著輸出開關(guān)正常工作時，I/O 公共端和電源公共端之間無需連接。如果需要，只需將引腳 22（讀取使能引腳）連接到 I/O 公共端（引腳 19）即可持續(xù)開啟輸出開關(guān)。

信號濾波采用六極濾波器實現(xiàn)，該濾波器在 60Hz 時提供 95dB 的常模抑制比，在 50Hz 時提供 90dB 的常模抑制比。該濾波器的兩個極點位于隔離柵的現(xiàn)場側(cè)，另外四個極點位于計算機(jī)側(cè)。

輸入信號在經(jīng)過初始現(xiàn)場濾波后，由專有斬波電路進(jìn)行斬波。隔離采用變壓器耦合，同樣采用專有技術(shù)來抑制共模尖峰或浪涌的傳輸。該模塊采用 +5VDC，±5% 的供電。

SCM5B30和 SCM5B31 模塊上的特殊輸入電路可防止意外連接高達(dá) 240VAC 的電源線電壓。

Each SCM5B30 and SCM5B31 voltage input module provides a single channel of analog input which is filtered, isolated, amplified, and converted to a high-level analog voltage output (Figure 1). This voltage output is logic-switch controlled, allowing these modules to share a common analog bus without the requirement of external multiplexers.

The SCM5B modules are designed with a completely isolated computer side circuit which can be floated to ±50V from Power Common, pin 16. This complete isolation means that no connection is required between I/O Common and Power Common for proper operation of the output switch. If desired, the output switch can be turned on continuously by simply connecting pin 22, the Read-Enable pin, to I/O Common, pin 19.

Signal filtering is accomplished with a six-pole filter which provides 95dB of normal-mode rejection at 60Hz and 90dB at 50Hz. Two poles of this filter are on the field side of the isolation barrier, and the other four are on the computer side.

After the initial field-side filtering, the input signal is chopped by a proprietary chopper circuit. Isolation is provided by transformer coupling, again using a proprietary technique to suppress transmission of common mode spikes or surges. The module is powered from +5VDC, ±5%.

A special input circuit on the SCM5B30 and SCM5B31 modules provides protection against accidental connection of power-line voltages up to 240VAC.

DATAFORTH模擬電壓輸入模塊SCM5B30系列其他常用型號：

DATAFORTH SCM5B30-03

DATAFORTH SCM5B30-01

DATAFORTH SCM5B30-01D

DATAFORTH SCM5B30-02

DATAFORTH SCM5B30-02D

DATAFORTH SCM5B30-03D

DATAFORTH SCM5B30-04

DATAFORTH SCM5B30-04D

DATAFORTH SCM5B30-05

DATAFORTH SCM5B30-05D

DATAFORTH SCM5B30-06

DATAFORTH SCM5B30-06D

DATAFORTH Analog Voltage Input Module NEW + ORIGINAL+ ONE YEAR WARRANTY

愛澤工業(yè)成立于2010年，定位于向制造工業(yè)提供高端制造技術(shù)和設(shè)備。代理經(jīng)營世界優(yōu)質(zhì)的電氣自動化、機(jī)械與傳動、流體控制、儀器儀表、工具等產(chǎn)品。作為電氣，液壓以及氣動解決方案的合作伙伴，我們利用我們的全球協(xié)作團(tuán)隊，為客戶提供先進(jìn)解決方案，市場知識以及相關(guān)增值服務(wù)來幫助優(yōu)化客戶的工作效率，提高可靠性和安全性，致力于成為工業(yè)產(chǎn)品和解決方案的優(yōu)質(zhì)渠道。

如果有任何關(guān)于DATAFORTH模擬電壓輸入模塊SCM5B30-03的疑問，請隨時與我們溝通（021-31006702）。我們將盡全力解決您的問題。

If you have any question for DATAFORTH products, please feel free to dial 0086-21-3100 6702/ send request email to [email protected] / browse our website:www.www.jguvm.cn.

DATAFORTH模擬電壓輸入模塊SCM5B30系列SCM5B30-03技術(shù)參數(shù)及介紹