Allen-Bradley 1771-OFE2 是 1771 产品系列的模拟输出模块

Allen-Bradley 1771-OFE2 是 1771 产品系列的模拟输出模块

Allen-Bradley 1771-OFE2 是 1771 产品系列的模拟输出模块。它具有四 （4） 个独立隔离的模拟输出通道，可提供 4-20 mA 输出电流信号。该模块通常用于控制zui终控制元件 （FCE），例如变频驱动器 （VFD）、阻尼器、百叶窗、阀门和其他设备和装置。它还可用于实现比例+积分+微分（PID）控制器的输出，以实现模拟环路的自动控制。此外，该模块还可用于将信号传输到测量、接收和记录元件，如信号隔离器、信号转换器、面板仪表、数据记录仪和其他类似仪器。

1771-OFE2 可安装到任何 1771 I/O 机箱。它可以用作PLC 5控制器的本地和远程I / O模块。它占用机箱的单个插槽，并使用 1771-WC 现场接线臂。每个通道的额定隔离度为 850 VDC，持续 1 秒，而数模转换器 （DAC） 建立时间zui长为 0.8 ms。它的背板电流消耗为 1.50 安培，功耗为 7.9 瓦，热耗散为 26.9 BTU/小时，相邻插槽功率zui大耗散为 10 瓦。将输出设备连接到此模拟输出模块的通道时，请使用绝缘厚度为 12/3 英寸或 64.1 毫米的 2 号绞合或实心线。推荐的电缆是百通8761。在安装到机箱期间，确保模块键控设置为 10 和 12 / 26 和 28。以 7-9 磅/英寸的力拧紧电线端接。

1771-OFE2 模块具有 4 个输出通道，隔离 1000 V 单独隔离差分输出。它需要 1.4A 的 5 伏电源，由 I/O 机箱背板供电，因此不需要外部电源。BCD 的通道更新时间为每 8 个通道 4 毫秒，自然二进制的通道更新时间为每 1 个通道 6.4 毫秒。它的zui大功耗为 7.9 瓦，zui大热耗散为 26.9 BTU/小时。1771-OFE2 包括一个接线臂，用于在不断开电线的情况下更换模块。它可以安装在 1771 I/O 机箱中的任何插槽中，并且必须在引脚 10 到 12 和 26 到 28 之间卡住键控带才能固定该插槽。1771-OFE2 模块可以将原始数据转换为工程单位，例如摄氏度、华氏度、加仑/分钟和磅/平方英寸。对于诊断，它在启动时执行自检。如果发生故障，红色故障指示灯 LED 亮起，绿色电源状态指示灯 LED 保持熄灭。1771-OFE2 具有 1500 伏的光电隔离，可保护系统免受过压影响。

Allen-Bradley 1771-OFE2 是 1771 产品系列的模拟输出模块

Allen-Bradley 1771-OFE2 is an analog output module for the 1771 product family. It features four (4) independently isolated analog output channels that provide a 4-20 mA output current signal. The module is typically used to control final control elements (FCE), such as variable frequency drivers (VFDS), dampers, shutters, valves, and other devices and devices. It can also be used to realize the output of proportional + integral + differential (PID) controllers for automatic control of analog loops. In addition, the module can be used to transmit signals to measuring, receiving and recording elements such as signal isolators, signal converters, panel meters, data loggers and other similar instruments.

The 1771-OFE2 can be installed into any 1771 I/O chassis. It can be used as a local and remote I/O module for a PLC 5 controller. It occupies a single slot in the case and uses a 1771-WC field wiring arm. Each channel is rated at 850 VDC isolation for 1 second, while the digital-to-analog converter (DAC) setup time is up to 0.8 ms. It has a backplane current consumption of 1.50 amps, power consumption of 7.9 watts, heat dissipation of 26.9 BTU/ hour, and a maximum power dissipation of 10 watts in adjacent slots. When connecting the output device to the channel of this analog output module, use a No. 2 twisted or solid wire with an insulation thickness of 12/3 "or 64.1 mm. The recommended cable is Beton 8761. During installation into the chassis, make sure the module keying is set to 10 and 12/26 and 28. Tighten wire terminations with a force of 7-9 LBS/inch.

The 1771-OFE2 module has 4 output channels that isolate 1000 V differential output separately. It requires a 1.4A 5-volt power supply powered by the I/O chassis backplane, so no external power supply is required. The channel update time for BCD is 4 milliseconds per 8 channels, and the channel update time for natural binary is 6.4 milliseconds per 1 channel. It has a maximum power consumption of 7.9 watts and a maximum heat dissipation of 26.9 BTU/ hour. The 1771-OFE2 includes a wiring arm for changing modules in case of constant wiring. It can be installed in any slot in the 1771 I/O case, and the keying tape must be jammed between pins 10 to 12 and 26 to 28 to secure that slot. The 1771-OFE2 module converts raw data into engineering units such as degrees Celsius, degrees Fahrenheit, gallons per minute, and pounds per square inch. For diagnostics, it performs a self-test at startup. If a fault occurs, the red fault indicator LED lights up and the green power status indicator LED remains off. The 1771-OFE2 has a 1500 volt photoelectric isolation to protect the system from overvoltage.

Allen-Bradley 1771-OFE2 是 1771 产品系列的模拟输出模块

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