1797-PS2E2额定电源模块FlexEx Power Supply
1797-PS2E2额定电源模块FlexEx Power Supply
1797-PS2E2电源作为Flex Ex和Flex I/O 1797系列的一部分制造。它用于本质安全系统。1797-PS2E2电源用于将所有不安全的输入电源与其所属的控制系统隔离，并将该电源限制在IS-安全额定水平。它设计有防火保护外壳，具有IP 65环境保护等级。1797-PS2E2电源的工作电压范围为18至32伏DC。
FlexEx Power Supply 1797-PS2E2 罗克韦尔自动化宣布，截至2017 . 12 . 31，FlexEx电源停产Allen-Bradley 1797-PS2E2 4-Ex输出DC电源模块采用IP 65/NEMA 7B级防爆外壳交付，该外壳改进了输入和输出的安全终端。输入DC电源压盖为M20x1 5型，可接受直径为6至12毫米的电缆。功率输出压盖（共有4个）为M16x1 5，可接受4至8毫米宽的电缆。通过这些电缆，电力传输到执行器、阀门、传感器或变送器。1797-PS2E2模块支持带电拆卸和插入，这样可以在系统运行时在危险区域进行电缆连接。
1797-PS2E2额定电源模块FlexEx Power Supply
1797-PS2E2模块是由Allen-Bradley设计和制造的FLEX EX I/O系列本质安全IECEX 24伏直流额定电源模块。1797-PS2E2 PSU(电源单元)是本质安全系统中重要的部件之一。其目的是将输入电源电路与相关电气控制电路的危险区域隔离开来，并阻止电路问题从输入端转移到输出端。1797-PS2E2模块的另一项任务是设置可访问能量的限制并将其调整到定义的安全水平。所有4个输出通道都可以独立限制。1797-PS2E2安全IECEX PSU模块为其4个输出通道提供8.5瓦的功率。在爆炸性环境中使用的这种特殊装置提供的额定电压为24伏直流，这是在危险区域连接到FLEX Ex系统的组件所需的电源。24伏直流电压的输入连接器位于端子1、2、4和5。有4个端子覆盖2个电源输入，实现源输入冗余。可接受的输入电压范围为18 ~ 32v直流。
The 1797-PS2E2 module is a FLEX EX I/O series intrinsically safe IECEX 24 Volts DC rated power supply module designed and manufactured by Allen-Bradley. The 1797-PS2E2 PSU (Power Supply Unit) is one of the most important components of an intrinsically safe system. Its purpose is to isolate the incoming power circuit from the hazard zone of the involved electrical control circuits and to disable the transition of the electrical circuit problems from the input side to the output side. The other task for the 1797-PS2E2 module is to set a limit for the accessible energy and adjust it to the defined safe levels. All 4 output channels can be independently IS limited. The 1797-PS2E2 safe IECEX PSU module delivers 8.5 Watts to each of its 4 output channels. The voltage delivered from this special device for use in explosive atmospheres is rated at 24 Volts DC and this is the only power source needed for the components attached to the FLEX Ex system in a hazardous area. The input connectors for 24 Volts DC voltage are located at terminals 1, 2, 4, and 5. There are 4 terminals to cover 2 power inputs for source input redundancy. The acceptable input voltage range is from 18 to 32 Volts DC.
Rockwell Automation announces that as of December 31, 2017, the FlexEx Power Supply will be discontinued and no longer available for sale.
在线客服