1756-IA8D 数字 I/O 模块  现场功率损耗检测

【产品详情】

Allen-Bradley 1756-IA8D 是一款ControlLogix 数字 I/O 模块。

此交流输入模块中有 8 个诊断输入，每组有 4 个可用点。该模块适用于 1756 ControlLogix 机箱，仅与 1756-TNBH 或 1756-TBSH 可拆卸接线端子 （RTB） 兼容。

1756-IA8D 的一个独特功能是现场功率损耗检测。当模块发生现场断电或无法检测到过零时，将向控制器发送点电平故障。这允许控制器找到故障的确切点，因此请确保仅对正在使用的点启用此选项。如果未使用的点激活了现场功率损耗检测，则这些点将在运行期间注册为故障，而不是未使用的点。

1756-IA8D 的其他可配置功能包括状态变化、输入滤波时间、断线检测、诊断锁存和诊断状态变化。

该模块的标称输入电压为 120 伏交流电和 50 至 60 赫兹，与其电压类别相同。背板电流在5.1 V DC时为100 mA，在24 V DC时为3 mA，背板总功率为0.58 W。其工作电压范围为 79 至 132 V AC 和 47 至 63 Hz。5.1 V 时的电流消耗为 100 mA，24 V 时的电流消耗为 3 mA。在 60 摄氏度时，最大功耗为 4.5 W，而其最大散热为 15.35 BTU/小时。在关断状态下，其最大电压为20 V，最大电流为2.5 mA。另一方面，导通电流范围为5 mA（74 V AC）至16 mA（132 V AC）。该模块具有从螺丝到背板的输入延迟时间;从“关”到“开”，硬件延迟最大为 10 ms + 用户可选的滤波时间（1 或 2 ms），而从“开”到“关”，硬件延迟最大为 8 ms + 用户可选滤波时间（9 ms 或 18 ms）。该模块的连续隔离电压为 125 V。

1756-IA8D 数字 I/O 模块  现场功率损耗检测

【英文介绍】

The Allen-Bradley 1756-IA8D is a ControlLogix digital I/O module.

There are 8 diagnostic inputs in this AC input module, with 4 points available in each group. This module is suitable for the 1756 ControlLogix chassis and is only compatible with the 1756-TNBH or 1756-TBSH Detachable Terminal (RTB).

A unique feature of the 1756-IA8D is field power loss detection. A point level failure is sent to the controller when a field power failure occurs in the module or when zero crossing cannot be detected. This allows the controller to find the exact point of failure, so be sure to enable this option only for the point in use. If unused points activate field power loss detection, these points are registered as faults during operation, rather than unused points.

Other configurable features of the 1756-IA8D include state change, input filter time, line break detection, diagnostic latch, and diagnostic state change.

The module has a nominal input voltage of 120 volts AC and 50 to 60 Hertz, the same as its voltage class. The backplane current is 100 mA at 5.1 V DC and 3 mA at 24 V DC, and the total backplane power is 0.58 W. Its operating voltage ranges are 79 to 132 V AC and 47 to 63 Hz. The current consumption is 100 mA at 5.1 V and 3 mA at 24 V. At 60 degrees Celsius, the maximum power consumption is 4.5W, while its maximum heat dissipation is 15.35 BTU/ hour. In the off state, the maximum voltage is 20 V and the maximum current is 2.5 mA. On the other hand, the conduction current ranges from 5 mA (74 V AC) to 16 mA (132 V AC). The module has an input delay time from the screw to the backplane; From "Off" to "On", the hardware delay is up to 10 ms + the user's optional filtering time (1 or 2 ms), and from "On" to "Off", the hardware delay is up to 8 ms + the user's optional filtering time (9 ms or 18 ms). The module has a continuous isolation voltage of 125 V.

1756-IA8D 数字 I/O 模块  现场功率损耗检测

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