描述
主要产品详情和功能
电源轨供电：PF900-NR的核心功能是为电源轨PR 900-N提供24 V直流电压和最大4 A电流。这确保连接到电源轨的各种I/O和通信模块获得运行所需的电力。
双供电端子设计：它具有双供电端子（8+和11+或9-和12-）。这种设计允许将电源环路最大电流提升至10 A，从而提供布线灵活性，并可能满足电源轨的更高电流需求。
集成故障评估：该模块具有内置功能，可检测系统内部的故障：
短路：它可以识别电源轨上的短路情况。
汇总错误消息：它与系统集成以提供总体错误状态。
故障指示和信号输出：
故障时，继电器闭合（端子7和10）以发出错误信号。
前面板上的红色LED指示灯直观地指示故障。
工作模式（例如，故障继电器的工作方式）通常可以通过插入式跳线进行调整。
总线连接：端子13和15专用于总线连接，该连接仅用于与电源轨PR 900-N进行数据通信。
集体错误消息测量点：端子14用作集体错误消息的测量点，通常用于检查或测试目的，通常不连接到主系统。
冗余供电能力：为了增强可靠性，可以在单个电源轨上使用两个PF900-NR模块，通过反向二极管（“R”）提供冗余电源。即使一个供电模块发生故障，也能确保系统持续运行。
紧凑坚固：专为工业环境设计，紧凑的外形可高效利用面板空间，坚固的结构可确保可靠运行。
符合EMC合规性：其设计符合NAMUR NE 21等电磁兼容性(EMC)标准，确保对其他设备的干扰最小。
主要规格（通用）
供电电压：24 V DC（额定范围通常为20-30 V DC）
最大输出电流：4 A
功率损耗：约2.4 W
故障信号输出：继电器输出，常开(NO)
故障信号触点负载：24 V AC，1 A/24 V DC，1 A
通电/断电延迟：约20 ms
环境温度：-25°C至+50°C
存储温度：-40°C至+85°C
相对湿度：<95%无凝结
污染等级：根据IEC 60664标准，最高2级
安装：专为Power Rail PR 900-N安装而设计。
连接：通过可插拔螺丝端子连接。
原产国：通常是德国。
Key Product Details and Functions
Power Supply to Power Rail:The core function of the PF900-NR is to supply a 24 V DC voltage and a maximum current of 4 A to the Power Rail PR 900-N.This ensures that the various I/O and communication modules connected to the Power Rail receive the necessary power for operation.
Dual Designed Power Feed Terminals:It features dual power feed terminals(8+and 11+or 9-and 12-).This design allows for the looping of the supply up to a maximum of 10 A,providing flexibility in wiring and potentially facilitating higher current demands across the rail.
Integrated Fault Evaluation:The module has built-in capabilities to detect faults within the system:
Short circuits:It can identify short-circuit conditions on the Power Rail.
Collective error messages:It integrates with the system to provide overall error status.
Fault Indication and Signal Output:
In a fault condition,relays switch closed(terminals 7 and 10)to signal the error.
A red LED on the front panel visually indicates a fault.
The mode of operation(e.g.,how the fault relays behave)can often be adjusted with a plug-in jumper.
Bus Connection:Terminals 13 and 15 are specifically for the bus connection,which is used only with the Power Rail PR 900-N for data communication.
Measuring Point for Collective Error Message:Terminal 14 serves as a measuring point for the collective error message,typically used for inspection or testing purposes and not usually wired into the main system.
Redundant Supply Capability:For enhanced reliability,two PF900-NR modules can be used on a single Power Rail to provide a redundant power supply through a reverse diode(“R”).This ensures continuous operation even if one power feed module fails.
Compact and Robust:Designed for industrial environments,it features a compact form factor for efficient panel space utilization and robust construction for reliable operation.
EMC Compliance:It’s designed to comply with electromagnetic compatibility(EMC)standards like NAMUR NE 21,ensuring minimal interference with other equipment.
Key Specifications(General)
Supply Voltage:24 V DC(Rated range typically 20-30 V DC)
Maximum Output Current:4 A
Power Loss:Approximately 2.4 W
Fault Signal Output:Relay output,Normally Open(NO)
Contact Loading for Fault Signal:24 V AC,1 A/24 V DC,1 A
Energized/De-energized Delay:Approximately 20 ms
Ambient Temperature:-25°C to+50°C
Storage Temperature:-40°C to+85°C
Relative Humidity:<95%non-condensing
Degree of Soiling:Max.2,according to IEC 60664
Mounting:Designed for Power Rail PR 900-N mounting.
Connections:Via pluggable screw terminations.
Country of Origin:Often Germany.
ABB Model: GBU72 3BHE055094R0002 Model: 3BHE055094R0002 GBU72 Model: GBU72 Model: 3BHE055094R0002 Model: 3BHE031197R0001 Model: 3BHB030310R0001 Model: 73BHE055094R0002 GBU72 Model: 73BHE055094R0002 Model: GBU72 Model: ABB PCS6000 PRODUCT FAMLIY ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
