1794-OE12 是一款 Flex IO 模拟量输出模块

1794-OE12 是一款 Flex IO 模拟量输出模块

Allen-Bradley 1794-OE12 是一款高密度模拟输出模块，是 Flex IO 产品系列的一部分。该模块具有十二 （12） 个输出通道，可配置为 0-20mA、4-20 mA 电流信号和 +/- 10VDC 电压信号。该模块的通道是非隔离的，支持单端布线配置。

1794-OE12 与 1794-TB3G 和 1794-TB3GS 等端子底座一起使用，键开关位置为 4。它有一个开放式外壳，这意味着该模块和整个 Flex I/O 组件必须安装在外壳内，以提供足够的工业元素保护。

1794-OE12 配有内部安装的模数电路 （ADC） 转换器。它将数字数据转换为模拟信号，转换分辨率为 16 位，采用 2 补码数据格式。对于电压和电流信号，每个输出通道的绝对精度均为 0.1% 满量程 @ 25 °C，两种信号配置的精度漂移均为 0.004% 满量程/°C。

1794-OE12 的电流消耗为 80 mA，电源电压要求为 10.5-31.2VDC。它的功耗为 7.68 W @ 24V DC，散热为 26.2 BTU/hr @ 24V DC，隔离电压为 50V（连续），基本绝缘型。通道之间没有隔离。它的物理尺寸为 94.0 x 94.0 x 53.3 毫米或 3.7 x 3.7 x 2.1 英寸，并内置组诊断 LED。

1794-OE12 的工作温度为 -20 至 60 °C （-4 至 140 °F），存储温度要求为 -40 至 85 °C （-40 至 185 °F），相对湿度为 5-95%。它的工作冲击和振动额定值分别为 30 g 和 5 g @ 10...500 Hz。

1794-OE12 不需要校准。它的物理尺寸为 3.7 x 3.7 x 2.1 英寸，采用开放式外壳。它可以使用DIN导轨进行安装。1794-OE12 模块的输出为 0 mA，直到配置完成。配置后，输出信号范围为 4-20 mA 和 0-20 mA，两者均可由用户配置，而可配置的输出电压范围为 +/-10V。该模块的 mA 输出电阻负载为 0-750 ？在 24V DC 和最大电压输出电流负载 3 mA 时。其电流分辨率为0.641 μA/cnt，电压分辨率为320 μV/cnt。该模块标称外接直流电源为24V DC，外接直流电源电压范围为10-31.2V DC，包括5%的交流纹波。该模块的外部直流电源电流为 720 mA（10V DC）和 320 mA（24V DC）。1794-OE12 模块还具有 80 mA 的 FlexBus 电流和 50V 的连续隔离电压，该电压已在 850V DC 下测试了 60 秒，尤其是在用户与系统电源之间。电压和电流端子的绝对精度均为0.1%满量程（各为25%），电压和电流端子的精度随温度的变化均为0.004%满量程/摄氏度。该模块的最大功耗在 4V DC 和 10.31V DC 时均为 2W，在 4V DC 时为 3.24 W，在 4V DC 时的最大散热为 7.24 BTU/hr。该模块的工作温度为-20-60摄氏度，存储温度为-40-85摄氏度。它还具有 5-95% 的相对湿度，是非冷凝的。该模块在 30-50 Hz 下还具有 5 g 的工作冲击、10 g 的非工作冲击和 500 g 的工作振动。

1794-OE12 是一款 Flex IO 模拟量输出模块

The Allen-Bradley 1794-OE12 is a high-density analog output module that is part of the Flex IO product family. The module has twelve (12) output channels that can be configured for 0-20mA, 4-20 mA current signals, and +/- 10VDC voltage signals. The module's channels are non-isolated and support a single-ended cabling configuration.

The 1794-OE12 is used with terminal bases such as 1794-TB3G and 1794-TB3GS with key switch position 4. It has an open housing, which means that the module and the entire Flex I/O assembly must be installed inside the housing to provide adequate protection for industrial elements.

The 1794-OE12 is equipped with a built-in analog-to-digital circuit (ADC) converter. It converts digital data into analog signals with a resolution of 16 bits and a 2-complement data format. For both voltage and current signals, the absolute accuracy of each output channel is 0.1% full scale @ 25 °C, with an accuracy drift of 0.004% full scale /°C for both signal configurations.

The current consumption of the 1794-OE12 is 80 mA, and the supply voltage is required to be 10.5-31.2VDC. Its power consumption is 7.68W@24V DC, heat dissipation is 26.2 BTU/ hr@24V DC, isolation voltage is 50V (continuous), basic insulation type. There is no isolation between channels. It has a physical dimension of 94.0 x 94.0 x 53.3 mm or 3.7 x 3.7 x 2.1 inches and has a built-in group diagnostic LED.

The 1794-OE12 has an operating temperature of -20 to 60 °C (-4 to 140 °F), a storage temperature requirement of -40 to 85 °C (-40 to 185 °F), and a relative humidity of 5-95%. Its operating shock and vibration ratings are 30 g and 5 g @ 10... 500 Hz.

1794-OE12 does not require calibration. It has a physical size of 3.7 x 3.7 x 2.1 inches and an open housing. It can be mounted using DIN rails. The output of the 1794-OE12 module is 0 mA until the configuration is complete. After configuration, the output signal range is 4-20 mA and 0-20 mA, both of which can be configured by the user, while the configurable output voltage range is +/-10V. The module's mA output resistance load is 0-750? At 24V DC and maximum voltage output current load 3 mA. The current resolution is 0.641 μA/cnt and the voltage resolution is 320 μV/cnt. The module has a nominal external DC power supply of 24V DC and an external DC power supply voltage range of 10-31.2V DC, including 5% AC ripple. The module's external DC power supply current is 720 mA (10V DC) and 320 mA (24V DC). The 1794-OE12 module also features a FlexBus current of 80 mA and a continuous isolation voltage of 50V, which has been tested at 850V DC for 60 seconds, especially between the user and the system power supply. The absolute accuracy of the voltage and current terminals is 0.1% full scale (25% each), and the accuracy of the voltage and current terminals varies with temperature by 0.004% full scale/Celsius. The module has a maximum power consumption of 2W at both 4V DC and 10.31V DC, a maximum heat dissipation of 3.24W at 4V DC, and a maximum heat dissipation of 7.24 BTU/hr at 4V DC. The module has an operating temperature of -20 to 60 degrees Celsius and a storage temperature of -40 to 85 degrees Celsius. It also has a relative humidity of 5-95% and is non-condensing. The module also has a working shock of 5 g, a non-working shock of 10 g and a working vibration of 500 g at 30-50 Hz.