1756-OB16D 直流诊断输出模块 输出数据回波

【产品详情】

Allen-Bradley 1756-OB16D 是一款 ControlLogix 直流诊断输出模块。它有 16 个诊断输出可用，每组 8 个点，并且已按点进行电子融合。您可以将其安装在兼容的 ControlLogix 机箱中的任何可用插槽中。但是，这需要一个 36 位可拆卸接线端子外壳 （RTB）。RTB 可以是 1756-TBCH 或 1756-TBS6H。在使用 RTB 安装模块之前，安装机箱和电源并将其接地非常重要。

该 1756-OB16D 模块与其他输出模块具有以下共同特性：输出数据回波、多个输出点密度、可配置的点级输出状态、电子熔断以及隔离和非隔离的输出模块。它还允许您配置模块的各种功能，特别是空载检测、输出验证检测、故障模式下的输出状态、程序模式下的输出状态、从程序状态到故障状态的转换以及诊断锁存。

1756-OB16D 模块的短途跳闸诊断功能为 8 A（180 ms，最小值）和 10 A（120 ms，最小值）。空载功能仅用于关断状态检测，输出验证仅用于导通状态检测。脉冲测试具有用户可配置的最大脉冲宽度。该模块还允许您配置每个点的故障状态和每个点的程序模式下的状态，其中默认设置“关闭”，其他选项为“打开”和“保持最后状态”。

该输出模块的工作电压范围为 19.2 至 30V DC，电源电压类别为 24V DC。它还具有每点 3 mA 的最小负载电流、每点 1 mA 的最大关断状态泄漏电流和 1.2V DC（最大导通状态压降为 2 A）。其背板电流在24V DC时为140 mA，在5.1V DC时为250 mA，背板总功率为4.64 W。其线性降额输出电流额定值在 30 摄氏度（80 华氏度）时最大为 2 A，在 60 摄氏度（140 华氏度）时最大为 1 A，每个模块的额定值在 30 摄氏度时最大为 8 A，在 60 摄氏度时最大为 4 A。1756-OB16D 模块每点的浪涌电流为 4 A，每个 10 ms，每秒可重复一次。其组与组之间和用户与系统的隔离电压已在 2546V 下测试了 1 秒，两者的最大连续电压均为 250V AC。

其输出延迟时间为 55μs（标称值），从关到开的最大值为 1 ms，标称值为 630μs，从开到关的最大值为 5 ms。工作温度范围为 0 至 60 摄氏度（32 至 140 华氏度），存储温度为 -40 至 85 摄氏度（-40 至 185 华氏度）。

1756-OB16D 直流诊断输出模块 输出数据回波

【英文介绍】

The Allen-Bradley 1756-OB16D is a ControlLogix DC diagnostic output module. It has 16 diagnostic outputs available, each set of 8 points, and has been electronically fused by point. You can install it in any available slot in a compatible ControlLogix chassis. However, this requires a 36-bit detachable terminal housing (RTB). The RTB can be 1756-TBCH or 1756-TBS6H. Before installing a module using RTB, it is important to install the chassis and power supply and ground them.

The 1756-OB16D module shares the following characteristics with other output modules: output data echo, multiple output point density, configurable point-level output states, electronic fusing, and isolated and non-isolated output modules. It also allows you to configure various functions of the module, especially no-load detection, output verification detection, output state in fault mode, output state in program mode, transition from program state to fault state, and diagnostic latches.

The 1756-OB16D module has A short-trip diagnostic function of 8 A (180 ms, minimum) and 10 A (120 ms, minimum). The no-load function is only used for off status detection, and the output verification is only used for on-status detection. The pulse test has a user-configurable maximum pulse width. The module also allows you to configure the failure state of each point and the state in program mode of each point, where the default setting is "off" and the other options are "On" and "Keep Last State".

The output module has an operating voltage range of 19.2 to 30V DC and a supply voltage class of 24V DC. It also has A minimum load current of 3 mA per point, a maximum off state leakage current of 1 mA per point, and 1.2V DC (maximum on-state voltage drop of 2 A). The backplane current is 140 mA at 24V DC, 250 mA at 5.1V DC, and the total backplane power is 4.64W. Its linear derated output current ratings are up to 2 A at 30 ° C (80 ° F), 1 A at 60 ° C (140 ° F), and 8 A at 30 ° C and 4 A at 60 ° C for each module. The 1756-OB16D module has A surge current of 4 A per point, each 10 ms, which can be repeated once per second. The isolation voltage between groups and between users and the system has been tested for 1 second at 2546V, with a maximum continuous voltage of 250V AC for both.

Its output delay time is 55μs (nominal value), the maximum from off to on is 1 ms, the nominal value is 630μs, and the maximum from on to off is 5 ms. Operating temperatures range from 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) and storage temperatures from -40 to 85 degrees Celsius (-40 to 185 degrees Fahrenheit).

1756-OB16D 直流诊断输出模块 输出数据回波

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