1756-OF4 是 Allen-Bradley(羅克韋爾自動化)生產(chǎn)的 ControlLogix 系列的一個模擬輸出模塊。這個模塊提供 4 路電壓或電流輸出,具有高分辨率和精確的輸出信號控制能力。
以下是該模塊的一些關(guān)鍵特點:
輸出類型:提供 4 路電壓或電流輸出。
電流分辨率:15 位,21 mA 輸出時為 650 nA/位。
電壓分辨率:16 位,10.5V 輸出時為 320 μV/位。
兼容的可拆卸端子塊:需要一個 20 針的 RTB(可移動接線板),兼容的 RTB 型號為 1756-TBSH 和 1756-TBNH。
功耗:在 5.1V 直流電壓下工作時電流消耗為 150 mA,在 24V 直流電壓下工作時電流消耗為 120 mA。
熱性能:具有良好的散熱性能,熱耗散額定值為 10.91 BTU/hr。
負載能力:能夠驅(qū)動高達 2000 歐姆的電阻負載和 0 至 750 歐姆的電流負載。
精度:在 25 攝氏度時的滿量程精度裕量為 0.5%,輸出紋波在 0 至 50 千赫范圍內(nèi)為 +/-0.05%。
1756-OF4 模塊適用于多種工業(yè)自動化應用,如驅(qū)動變頻器、控制閥門、風門、百葉窗等執(zhí)行器,或用于轉(zhuǎn)發(fā)信號給記錄器、指示器、數(shù)據(jù)記錄器和外部控制器。它也可用于實現(xiàn)用戶程序中配置的控制輸出或命令,包括 PID 控制器、數(shù)學計算、手動輸入界面、移動和類似模擬處理指令。
該模塊要求每 12 個月校準一次,校準精度優(yōu)于 4 至 21 毫安,-10.4 至 10.4 伏范圍的 0.05%。它已經(jīng)在 1350 伏交流電下進行了 2 秒鐘的常規(guī)測試,并具有 250 伏的持續(xù)隔離電壓。模塊的電壓驅(qū)動能力大于 2000 歐姆,電流驅(qū)動能力為 0 至 750 歐姆。
The 1756-OF4 is an analog output module in the ControlLogix series produced by Allen-Bradley (Rockwell Automation). This module provides 4 voltage or current outputs with high resolution and precise output signal control.
Here are some of the key features of the module:
Output type: Provides four voltage or current outputs.
Current resolution: 15 bits, 650 nA/ bit at 21 mA output.
Voltage resolution: 16 bit, 320 μV/ bit at 10.5V output.
Compatible detachable terminal block: A 20-pin RTB (removable patch board) is required, and compatible RTB models are 1756-TBSH and 1756-TBNH.
Power consumption: The current consumption is 150 mA when operating at 5.1V DC voltage and 120 mA when operating at 24V DC voltage.
Thermal performance: Has good heat dissipation performance, heat dissipation rating of 10.91 BTU/hr.
Load capacity: Capable of driving resistance loads up to 2000 ohms and current loads from 0 to 750 ohms.
Accuracy: Full scale accuracy margin of 0.5% at 25 degrees Celsius and output ripple of +/-0.05% in the 0 to 50 KHZ range.
The 1756-OF4 module is suitable for a variety of industrial automation applications, such as driving actuators such as inverters, controlling valves, valves, shutters, or for forwarding signals to loggers, indicators, data loggers and external controllers. It can also be used to implement control outputs or commands configured in user programs, including PID controllers, mathematical calculations, manual input interfaces, movement, and similar analog processing instructions.
The module is required to be calibrated every 12 months with a calibration accuracy better than 0.05% of the range of 4 to 21 MA, -10.4 to 10.4 volts. It has been routinely tested for 2 seconds at 1350 volts AC and has a sustained isolation voltage of 250 volts. The module has a voltage drive capability greater than 2000 ohms and a current drive capability of 0 to 750 ohms.
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