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User Manual
Version 1.15
DC Arc Fault Detector FR-DCMG-AS4A
Scan the code to learn more
Fonrich (Shanghai) New Energy Technology Co., Ltd.
Add: Room 103, Bldg. 6, Mingpu Plaza, No. 3279 Sanlu Highway, Minhang District, Shanghai
Tel: +86 21 60717303
Fax: +86 21 60717306
Web: www.fonrich.com
Email: sales@fonrich.com
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Table of Contents
Summary of Contents for Fonrich FR-DCMG-AS4A
- Page 1 Version 1.15 DC Arc Fault Detector FR-DCMG-AS4A Scan the code to learn more Fonrich (Shanghai) New Energy Technology Co., Ltd. Add: Room 103, Bldg. 6, Mingpu Plaza, No. 3279 Sanlu Highway, Minhang District, Shanghai Tel: +86 21 60717303 Fax: +86 21 60717306 Web: www.fonrich.com...
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Page 2: Table Of Contents
Table of Content 1 Product Introduction ............................ 3 Main features ..........................3 Document declaration ........................4 Main technical parameters ......................4 Outline Dimensional Drawing ......................5 Definition and Description of Wiring Terminals ................5 DC Arc Fault Detector Cascading schematic diagram ..............6 2 Interface reference circuit .......................... -
Page 3: Product Introduction
Fonrich (Shanghai) New Energy Technology Co., Ltd. 1 Product Introduction FR-DCMG-AS4A DC Arc Fault Detector is mainly used in DC transmission, power distribution and other occasions, such as photovoltaic combiner boxes, DC cabinets, telecommunications rooms, communication base stations, etc., real-time detection faulty arc in DC circuit. -
Page 4: Document Declaration
Fonrich (Shanghai) New Energy Technology Co., Ltd. Document declaration This manual is applicable to model FR-DCMG-AS4A, software version 0x3090 and above. Please refer to page 11 on how to check the software version. Main technical parameters classification project index Maximum channels 4×，maximum 24 channels... -
Page 5: Outline Dimensional Drawing
Fonrich (Shanghai) New Energy Technology Co., Ltd. Outline Dimensional Drawing Figure 2 DC Arc Fault Detector Outline Dimensional Drawing Definition and Description of Wiring Terminals Figure 3 Definition and Description of Wiring Terminals Signal signal pin Pin definition Description Level... -
Page 6: Dc Arc Fault Detector Cascading Schematic Diagram
Fonrich (Shanghai) New Energy Technology Co., Ltd. DC Arc Fault Detector Cascading schematic diagram FR-DCMG-AS4A adopts a cascade mode and supports 4 to 24 channels of DC arc monitoring. Please refer to Figure 4 for specific connection method and instruction (taking... -
Page 7: Interface Reference Circuit
Fonrich (Shanghai) New Energy Technology Co., Ltd.. 2 Interface reference circuit (1) If you want to connect to this sensor through RS485 interface, please use the following reference circuit: Note: 1. The circuit structure is simple, the driving ability is limited, RS-485 bus is not recommended to use the end terminal (120Ω), otherwise it may cause AS4A output level too... - Page 8 Fonrich (Shanghai) New Energy Technology Co., Ltd.. （2）If you want to connect to this sensor through TTL level, please use the following reference circuit: Note: 1.RX,TX is UART signal, if the controller pin function can be compatible with 5V level can be used directly, otherwise please add level converter.
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Page 9: Modbus Protocol Definition
After the modules are cascaded, the Modbus address at the end of the cascaded FR-DCMG-AS4A is 1, and the Modbus address at the front of the cascaded module is the number of cascaded sensors (see Figure 4 for details). Figure 3 shows the Modbus output terminals. -
Page 10: Register Address Specification
Fonrich (Shanghai) New Energy Technology Co., Ltd.. Register address definition Word content Data type Instructions address Status and control information Current value of Channel 1 Real-time current, unit 0x0000 Short channel 1 Current value of Channel 2 Real-time current, unit... - Page 11 Fonrich (Shanghai) New Energy Technology Co., Ltd.. Arc sensor 0x0020 Short Arc sensor Software version Software version Arc sensor 0x0021 Short Arc sensor Hardware version Hardware version Arc sensor 0x0022 Short Arc sensor Hardware serial number Hardware serial number Arc sensor...
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Page 12: Modbus Address Modification Procedure
Fonrich (Shanghai) New Energy Technology Co., Ltd.. Modbus Slave ID modification procedure In this example, change the default Modbus Slave ID 1 to user-defined Slave ID 3: Procedure for modifying Modbus Slave ID loss... -
Page 13: Document Revision Record
Fonrich (Shanghai) New Energy Technology Co., Ltd.. 4 Document revision record Revise Description Time Initial release V1.1 2015-04-14 Modify interface diagram V1.2 2015-04-17 V1.3 Example Modify the interface signal definition 2015-05-14 V1.4 Add interface usage diagram and reference design 2015-06-23... - Page 14 Fonrich (Shanghai) New Energy Technology Co., Ltd.. Appendix 1 DC Arc Fault Detector（FR-DCMG-AS4A）UL1699B Attestation...
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