1756-OB8 分立式输出模块 在直流电压下运行的电气负载

【产品详情】

Allen-Bradley 1756-OB8 是一款 ControlLogix 分立式输出模块。该模块的输出电压范围为 10-30 VDC，标称值为 24VDC。它用于为在直流电压下运行的电气负载以及交流负载供电，与插入电路一起使用。

1756-OB8 是一个单插槽模块，可占用机箱的任何可用插槽，但最左侧的插槽除外，该插槽用于 ControlLogix 处理器或 ControlLogix 通信适配器/扫描器模块。它兼容作为本地 I/O 组件或分布式 I/O 系统的一部分。它可以安装在任何可用的 1756- ControlLogix 机箱上，并沿着标准或电源模块运行。

1756-OB8 在 5.1 VDC 时的背板电流消耗为 165 mA，在 24VDC 时为 2 mA，而背板总功率为 0.89 W，功耗为 2.5 W @ 60 °C （140 °F），散热为 8.53 BTU/hr。该输出模块的每个通道可以提供高达 2 安培 @ 60 °C （140 °F） 和 8 安培 @ 60 °C （140 °F） 每个模块。

该模块使用可拆卸接线端子 （RTB） 将模块的每个通道连接到电气负载。兼容的 RTB 是 1756-TBNH 和 1756-TBSH，而适当的 RTB 键控是用户定义的机械键控。

它被输入到硬件配置中，可以进一步修改模块参数和属性/其中一些参数是请求数据包间隔 （RPI）、过滤时间、模块抑制等。

该模块使用可拆卸接线端子 （RTB），可以是 1756-TBNH 或 1756-TBSH（20 针 RTB）。该模块具有以下可用的通信格式：机架优化、仅侦听 - 机架优化、输出数据、仅侦听输出数据和计划输出数据。1756-OB8 模块也可提供先导工作。

1756-OB8 模块的电压类别为 12/24 伏直流电源，工作范围为 10 至 30 伏直流。其电流消耗在5.1V时为165 mA，在24V时为2 mA。它的背板功率为 0.89 W，在 60 摄氏度（140 华氏度）时的最大功耗为 2.5 W，散热为 8.53 BTU/小时。该模块的最大关断状态泄漏电流为每点 1 mA，在导通状态下，它在 2 A 时的最大压降为 1.2V DC。它还具有 60 摄氏度时每点 2 A 的最大电流和 8 摄氏度时 60 A 的最大电流。其每点浪涌电流为 4 A，持续 10 ms，在 60 摄氏度下每 1 秒可重复一次，最小负载电流为每点 2 mA。该模块的隔离电压在 250V 下连续。该模块还允许您修改每点故障模式下的状态和每点编程模式下的状态。两者的选项都是“保持最后状态”、“打开”或“关闭”，其中“关闭”设置为默认值。1756-OB8 模块运行时的温度范围为 0 至 60 摄氏度，不运行时为 -40 至 85 摄氏度。它还具有 60 摄氏度的最高周围空气温度和 5% 至 95% 的非冷凝相对湿度。

1756-OB8 分立式输出模块 在直流电压下运行的电气负载

【英文介绍】

The Allen-Bradley 1756-OB8 is a ControlLogix discrete output module. The module has an output voltage range of 10-30 VDC and a nominal value of 24VDC. It is used to power electrical loads operating at DC voltage as well as AC loads, in conjunction with plug-in circuits.

The 1756-OB8 is a single-slot module that can occupy any available slot in the case except the leftmost slot, which is used for the ControlLogix processor or the ControlLogix communication adapter/scanner module. It is compatible as a local I/O component or as part of a distributed I/O system. It can be installed on any available 1756-ControlLogix chassis and runs along a standard or PSU.

The 1756-OB8 has a backplane current consumption of 165 mA at 5.1 VDC and 2 mA at 24VDC, while the backplane has a total power of 0.89 W, a power consumption of 2.5 W @ 60 °C (140 °F), and a heat dissipation of 8.53 BTU/hr. The output module can deliver up to 2 amps @ 60 °C (140 °F) per channel and 8 amps @ 60 °C (140 °F) per module.

The module uses detachable terminal blocks (RTB) to connect each channel of the module to the electrical load. The compatible RTBS are 1756-TBNH and 1756-TBSH, while the appropriate RTB keying is user-defined mechanical keying.

It is entered into the hardware configuration and can further modify module parameters and properties/Some of these parameters are request packet Interval (RPI), filter time, module suppression, etc.

The module uses a removable terminal (RTB), which can be 1756-TBNH or 1756-TBSH (20-pin RTB). The module has the following communication formats available: Rack-optimized, Listening-only - Rack-optimized, Output data, Listening-only output data, and scheduled output data. The 1756-OB8 module is also available for pilot work.

The 1756-OB8 module has a voltage class of 12/24 volt DC power supply with an operating range of 10 to 30 volts DC. Its current consumption is 165 mA at 5.1V and 2 mA at 24V. It has a backplane power of 0.89 W, a maximum power consumption of 2.5 W at 60 degrees Celsius (140 degrees Fahrenheit), and a heat dissipation of 8.53 BTU/ hour. The module has A maximum off state leakage current of 1 mA per point, and in the on-state it has a maximum voltage drop of 1.2V DC at 2 A. It also has A maximum current of 2 A per point at 60 degrees Celsius and 60 A at 8 degrees Celsius. It has A surge current of 4 A per point, lasts for 10 ms, can be repeated every 1 second at 60 degrees Celsius, and the minimum load current is 2 mA per point. The isolation voltage of the module is continuous at 250V. The module also allows you to modify the state in each point failure mode and the state in each point programming mode. The options for both are "Keep Last," "On," or "Off," with "Off" set as the default. The 1756-OB8 module has a temperature range of 0 to 60 degrees Celsius when in operation and -40 to 85 degrees Celsius when not in operation. It also has a maximum ambient air temperature of 60 degrees Celsius and a non-condensing relative humidity of 5 to 95 percent.

1756-OB8 分立式输出模块 在直流电压下运行的电气负载

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