The 1797-PS1N is a Power Supply module for the Allen-Bradley FLEX Ex I/O platform, manufactured by Rockwell Automation. It is specifically designed to provide isolated and regulated power to the FLEX Ex I/O modules operating in hazardous (potentially explosive) areas.

English Description

The Allen-Bradley 1797-PS1N is a dedicated Power Supply module for the FLEX Ex I/O system. The FLEX Ex I/O system is part of Rockwell Automation's distributed I/O family, specifically engineered to extend I/O capabilities into hazardous locations (Class 1, Division 2, Zone 2, etc.) where explosive gases, vapors, or dust may be present. The 1797-PS1N ensures safe and reliable power delivery within such environments.

Key features and characteristics of the 1797-PS1N include:

• Manufacturer: Rockwell Automation (Allen-Bradley).

• Product Family: FLEX Ex I/O (1797 Series).

• Function: Provides isolated 24V DC power to the FLEX Ex I/O modules mounted on the FLEX Ex backplane. It converts incoming power to the required voltage while maintaining safety separation.

• Hazardous Location Rating: Designed and certified for use in hazardous areas (e.g., Class I, Division 2, Groups A, B, C, D; Zone 2, Group IIC), complying with stringent international safety standards for explosive atmospheres (e.g., ATEX, IECEx, UL). This is its primary distinguishing feature.

• Input Voltage: Typically accepts a 24V DC input for its operation, which is then regulated and isolated for the I/O modules.

• Isolation: Provides galvanic isolation between the input power source and the FLEX Ex I/O modules, which is critical for safety in hazardous environments.

• Modular Design: It's a key component in the modular FLEX Ex system, slotting into the backplane to power the adjacent I/O modules.

• Diagnostic Indicators: Often includes LED indicators for power status and potential faults, aiding in troubleshooting.

• Robustness: Built for industrial environments, designed to withstand vibration, shock, and temperature variations common in hazardous locations.

• Applications:

• Oil and Gas (upstream, midstream, downstream)

• Chemical and Petrochemical Processing

• Pharmaceuticals

• Food and Beverage (where explosive dusts may be present)

• Any industry requiring automation in potentially explosive atmospheres, enabling safe connectivity of field devices (sensors, actuators) to the control system.

The 1797-PS1N is an essential safety-rated power supply, enabling the deployment of reliable distributed I/O in hazardous industrial areas.

中文描述

1797-PS1N 是 罗克韦尔自动化 (Rockwell Automation) 艾伦-布拉德利 FLEX Ex I/O 平台 的电源模块。它专门设计用于为在危险（潜在爆炸性）区域中运行的 FLEX Ex I/O 模块提供隔离且受调节的电源。

主要特点和功能

艾伦-布拉德利 1797-PS1N 是 FLEX Ex I/O 系统 的专用电源模块。FLEX Ex I/O 系统是罗克韦尔自动化分布式 I/O 系列的一部分，专门设计用于将 I/O 能力扩展到存在爆炸性气体、蒸汽或粉尘的危险场所（如 1 类 2 区、2 区等）。1797-PS1N 确保在此类环境中安全可靠地供电。

1797-PS1N 的主要特点和功能包括：

• 制造商： 罗克韦尔自动化 (艾伦-布拉德利)。

• 产品系列： FLEX Ex I/O (1797 系列)。

• 功能： 为安装在 FLEX Ex 背板上的 FLEX Ex I/O 模块提供隔离的 24V 直流电源。它将输入电源转换为所需电压，同时保持安全隔离。

• 危险场所等级： 专为在危险区域（例如，I 类 2 区，A、B、C、D 组；2 区，IIC 组）使用而设计和认证，符合爆炸性环境的严格国际安全标准（例如 ATEX、IECEx、UL）。这是其主要区别特征。

• 输入电压： 通常接受 24V 直流输入以供其运行，然后该电压会被调节并隔离，供 I/O 模块使用。

• 隔离： 在输入电源和 FLEX Ex I/O 模块之间提供电气隔离，这在危险环境中对于安全至关重要。

• 模块化设计： 它是模块化 FLEX Ex 系统中的一个关键组件，插入背板为相邻的 I/O 模块供电。

• 诊断指示： 通常包括用于电源状态和潜在故障的 LED 指示灯，有助于故障排除。

• 坚固性： 专为工业环境设计，能够承受危险场所中常见的振动、冲击和温度变化。

• 应用：

• 石油和天然气（上游、中游、下游）

• 化工和石化加工

• 制药

• 食品和饮料（可能存在爆炸性粉尘）

• 任何需要将自动化部署在潜在爆炸性环境中的行业，实现现场设备（传感器、执行器）与控制系统的安全连接。

1797-PS1N 是一款重要的安全级电源，可实现危险工业区域中可靠的分布式 I/O 部署。