1769-OF4 是一款紧凑型 I/O 模块

1769-OF4 是一款紧凑型 I/O 模块

Allen-Bradley 1769-OF4 模块是产生电压/电流信号的模拟输出模块。该模块有四 （4） 个单端输出，输出电压范围为 0 至 10 伏和 0-20 mA。该模块的分辨率为 15 位单极性/双极性，在 5.1 V 电压下消耗电流为 120 mA。该模块的zui大散热额定值为 2.86 瓦，zui大转换速率为 3.8 毫秒。1769-OF4 模块的 2.9 毫秒阶跃响应额定值为 63%，电阻率负载为 0 至 600 欧姆电流或 1 KOhms;或更大的电压。1769-OF4 的zui大感性负载为 0.1 mH 电流负载和 1.0 μF 电压负载。它的精度裕度为 0.5%（25 摄氏度时满量程），在 0 至 50 kHz 时输出纹波为 +/- 0.05%。
该模拟输出模块的精度漂移为 +/- 0.0086%（每摄氏度），非线性裕度为 +/- 0.05%。它还具有 +/-0.8% 的模块误差范围（0 至 60 摄氏度），重复性为 +/-0.05%。1769-OF4 模块的输出阻抗为 <1 MOhm（电压输出）和 >1 MOhms 电流输出阻抗。1769-OF4 模块具有高达 40 mA 的电流电路保护和过电压保护。它的上电/断电输出响应小于 1 毫秒，额定工作电压为 30 V DC。它的重量为 280 克（0.61 磅），模块尺寸为 118 x 35 x 87 毫米（4.65 x 1.38 x 3.43 英寸）。

1769-OF4 是一款 Allen-Bradley 可编程自动化控制器 （PAC） 组件，专门用作 MicroLogix 1500 和 CompactLogix 控制器的模拟输出模块。该模拟输出模块设计用于驱动特定控制回路的调节zui终控制元件 （FCE），例如调节阀、变频驱动器 （VFD）、阻尼器、百叶窗和指示设备，例如指示器、记录仪、数据记录器和其他设备。

该模拟输出具有嵌入式四 （4） 个单端输出通道。每个通道可针对信号类型单独配置，例如 0-20mA 和 4-20 mA 电流信号以及 ±10V 直流、0 至 10V 直流、0 至 5V 直流、1 至 5Vdc 电压信号。该模块的输出分辨率为 15 位，可配置为单极性和双极性操作。模拟信号可以用作比例+积分+微分（PID）控制器的控制输出（CO），或将信号重新传输到接收元件，如指示器、记录仪、数据记录器、转换器和其他类似仪器。模拟输出信号也可以通过人机界面 （HMI）、监控和数据采集 （SCADA）、分布式控制系统 （DCS） 和其他基于计算机或基于电气的手动装载机启动。

1769-OF4 支持使用 MicroLogix 1500 控制器或 CompactLogix 控制器进行安装，但是，模块实例会根据额定电源距离而受到限制。对于 1769-OF4，所需的距离为八 （8）。如果需要超过 8 个模块，则可以在 CompactLogix 组件中安装另一个电源以鉴定其他模块。

1769-OF4 是一款紧凑型 I/O 模块

The Allen-Bradley 1769-OF4 module is an analog output module that generates a voltage/current signal. The module has four (4) single-ended outputs with an output voltage range of 0 to 10 volts and 0-20 mA. The module has a 15-bit unipolar/bipolar resolution and consumes 120 mA at 5.1 V voltage. The module has a maximum heat dissipation rating of 2.86 watts and a maximum conversion rate of 3.8 milliseconds. The 1769-OF4 module has a 2.9 ms step response rating of 63% with a resistivity load of 0 to 600 ohms current or 1 KOhms; Or greater voltage. The maximum inductive load of 1769-OF4 is 0.1 mH current load and 1.0 μF voltage load. It has an accuracy margin of 0.5% (full scale at 25 degrees Celsius) and an output ripple of +/ -0.05% at 0 to 50 kHz.
The analog output module has an accuracy drift of +/ -0.0086% (per degree Celsius) and a nonlinearity margin of +/ -0.05%. It also has a module error range of +/-0.8% (0 to 60 degrees Celsius) and a repeatability of +/-0.05%. The output impedance of the 1769-OF4 module is <1 MOhm (voltage output) and >1 MOhms current output impedance. The 1769-OF4 module has current circuit protection up to 40 mA and overvoltage protection. It has a power on/off output response of less than 1 millisecond and a rated operating voltage of 30 V DC. It weighs 280 grams (0.61 lb) and has module dimensions of 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 inches).

The 1769-OF4 is an Allen-Bradley Programmable Automation controller (PAC) assembly designed specifically for use as an analog output module for MicroLogix 1500 and CompactLogix controllers. The analog output module is designed to drive regulatory final control elements (FCE) of a specific control loop, such as regulator valves, variable frequency drivers (VFDS), dampers, shutters and indicating devices, such as indicators, loggers, data loggers and others.

The analog output has an embedded four (4) single-ended output channels. Each channel can be configured individually for signal types, such as 0-20mA and 4-20 mA current signals and ±10V DC, 0 to 10V DC, 0 to 5V DC, and 1 to 5Vdc voltage signals. The module has an output resolution of 15 bits and can be configured for unipolar and bipolar operation. The analog signal can be used as a control output (CO) for a proportional + integral + differential (PID) controller, or to re-transmit the signal to receiving elements such as indicators, loggers, data loggers, converters, and other similar instruments. Analog output signals can also be activated via a human-machine interface (HMI), supervisory control and data acquisition (SCADA), distributed control systems (DCS), and other computer-based or electrically-based manual loaders.

The 1769-OF4 supports installation using either a MicroLogix 1500 controller or a CompactLogix controller, however, module instances are limited based on rated power distance. For 1769-OF4, the required distance is eight (8). If more than 8 modules are required, another power supply can be installed in the CompactLogix assembly to authenticate the other modules.