1746-NO4I 电源模块 PLC模块CPU

1746-NO4I 电源模块 PLC模块CPU

Allen-Bradley 1746-NO4I 模块是属于 SLC 500 产品平台的可编程逻辑控制器 （PLC） 模拟输出模块。该模块与上述平台一起使用，并与两 （2） 个控制器变体兼容，例如模块化硬件样式的固定硬件。

该模块能够产生 0 至 20 mA 的输出电流范围，可用于驱动调制仪器和设备。典型的模拟输出连接到控制器的控制命令。如果与比例-积分-微分控制器一起使用，则分配模拟输出以表示PID控制器的控制输出（CO）。对于手动装载站，模拟输出表示操作员输入的手动命令。它还可用于将重要信号重新传输到单个或多个设备。这可能用于指示、数据记录和信号转换。

通过修改模块属性来分配适当的信号。该模块还安装了嵌入式选择开关，以允许选择电源。可以选择内部电源，这意味着模块将使用背板的电源，而外部电源是指规格为24 ±10%的外部电源，最大电流为195 mA。

Allen-Bradley 1746-NO4I是一款SLC 500四（4）通道模拟输出模块，使用16位2的互补二进制格式。它具有 4 个电流输出，输出范围为 0 至 +20 mA，满量程电流输出为 21 mA。该模块的背板电流消耗在55 VDC时为5 mA，在195 VDC时为24 mA，而超量程容量为5%（0至21 mA和1 LSB）。其电源电压额定值为 24 伏直流 +/- 10%，最大电流为 195 mA，背板隔离为 500 伏直流电。请注意，当 SLC 电源流出的功率不足时，某些应用需要 21.6 至 26.4 伏直流电源。

1746-NO4I 还具有 512 μs 的更新响应时间，适用于所有并联通道。该模块的输入阶跃响应在 2% 时为 5.95 毫秒。其工作温度为0至60摄氏度;储存温度为-40至85摄氏度，其非冷凝环境相对湿度为5%至95%。此工厂校准的输出模块具有开放式外壳，仅与 1746 机箱兼容。该模块中还存在 LED 状态指示灯。1746-NO4I 的负载范围为 0 至 500 欧姆，最大负载电抗为 100 μH，通过 R-14R 梯形转换方法的转换器分辨率为 2 位。1746-NO4I 的最大整体精度漂移为满量程精度的 +/- 70 ppm/ 摄氏度。

接线此模块时，请使用屏蔽通信电缆，例如百通 8761 或长度尽可能短的同等电缆。为了方便接线，该模块配有可拆卸端子，以简化接线并轻松更换模块。

1746-NO4I 电源模块 PLC模块CPU

The Allen-Bradley 1746-NO4I module is a Programmable logic controller (PLC) analog output module for the SLC 500 product platform. The module is used with the above platform and is compatible with two (2) controller variants, such as modular hardware style fixed hardware.

The module is capable of producing an output current range of 0 to 20 mA and can be used to drive modulation instruments and devices. A typical analog output is a control command connected to a controller. If used with a proportional-integral-differential controller, the analog output is assigned to represent the control output (CO) of the PID controller. For manual loading stations, the analog output represents the manual commands entered by the operator. It can also be used to retransmit important signals to a single or multiple devices. This may be used for indication, data recording, and signal conversion.

Assign the appropriate signal by modifying the module properties. The module is also fitted with an embedded selector switch to allow power supply selection. An internal power supply can be selected, which means that the module will use the power supply from the backplane, while an external power supply means an external power supply with a specification of 24 ±10% and a maximum current of 195 mA.

Allen-Bradley 1746-NO4I is an SLC 500 four (4) channel analog output module that uses a 16-bit 2 complementary binary format. It has 4 current outputs ranging from 0 to +20 mA and a full scale current output of 21 mA. The backplane current consumption of the module is 5 mA at 55 VDC and 24 mA at 195 VDC, while the overrange capacity is 5% (0 to 21 mA and 1 LSB). Its supply voltage rating is 24 volts DC +/ -10%, maximum current is 195 mA, and the backplane is isolated to 500 volts DC. Note that some applications require a 21.6 to 26.4 volt DC power supply when insufficient power is flowing from the SLC supply.

The 1746-NO4I also has an update response time of 512 μs for all parallel channels. The input step response of the module is 5.95 ms at 2%. Its operating temperature is 0 to 60 degrees Celsius; The storage temperature is -40 to 85 degrees Celsius and its non-condensing ambient relative humidity is 5% to 95%. This factory-calibrated output module has an open housing and is only compatible with the 1746 case. There are also LED status indicators in the module. The 1746-NO4I has a load range of 0 to 500 ohms, a maximum load reaction of 100 μH, and a 2-bit converter resolution via the R-14R ladder conversion method. The 1746-NO4I has a maximum overall accuracy drift of +/- 70 ppm/ C for full scale accuracy.

When wiring this module, use a shielded communication cable, such as a Belton 8761 or an equivalent cable of the shortest possible length. For easy wiring, the module is equipped with detachable terminals to simplify wiring and easily change modules.

1746-NO4I 电源模块 PLC模块CPU

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