{"product_id":"refu-elektronik-sr27000b-2-refusol-inverter-logic-control-communication-board","title":"REFU Elektronik SR27000B.2 – REFUSOL Inverter Logic Control \u0026 Communication Board","description":"\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUsed product.\u003c\/strong\u003e The \u003cstrong\u003eREFU Elektronik SR27000B.2\u003c\/strong\u003e is an industrial \u003cstrong\u003elogic, control, processing and communication board\u003c\/strong\u003e designed for \u003cstrong\u003eREFUSOL photovoltaic inverters\u003c\/strong\u003e. The board is a central part of the inverter control electronics and is used for signal processing, communication with other electronic modules, interface management and monitoring of the system's operating conditions.The board is identified by the marking \u003cstrong\u003eSR27000B.2\u003c\/strong\u003e and code \u003cstrong\u003e100289991\u003c\/strong\u003e. It was manufactured by \u003cstrong\u003eREFU Elektronik\u003c\/strong\u003e and is marked \u003cstrong\u003eMade in Germany\u003c\/strong\u003e.The board features an industrial high-density PCB with numerous SMD integrated circuits, programmable logic devices, power supply circuits and multiple connectors for interfacing with the different sections of the inverter.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e⚙️ Main Functions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eREFUSOL inverter control and management\u003c\/li\u003e\n\u003cli\u003eDigital and analog signal processing\u003c\/li\u003e\n\u003cli\u003eCommunication between electronic modules\u003c\/li\u003e\n\u003cli\u003eCommunication interface management\u003c\/li\u003e\n\u003cli\u003eInput and output management\u003c\/li\u003e\n\u003cli\u003eAcquisition of signals from external sensors\u003c\/li\u003e\n\u003cli\u003eCommunication with the control panel\u003c\/li\u003e\n\u003cli\u003eOperating data management\u003c\/li\u003e\n\u003cli\u003eInverter status monitoring\u003c\/li\u003e\n\u003cli\u003eDiagnostic information management\u003c\/li\u003e\n\u003cli\u003eCommunication with external monitoring systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e🔌 Interfaces \u0026amp; Connections\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSR27000B\u003c\/strong\u003e board family is associated with various interfaces used in REFUSOL inverters, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eEthernet\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRS485\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAnalog inputs\u003c\/li\u003e\n\u003cli\u003eAnalog outputs\u003c\/li\u003e\n\u003cli\u003eDigital inputs\u003c\/li\u003e\n\u003cli\u003eDigital outputs\u003c\/li\u003e\n\u003cli\u003eControl panel connections\u003c\/li\u003e\n\u003cli\u003eConnections to other internal inverter circuits and modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe PCB includes numerous connectors and silkscreen references, including \u003cstrong\u003eX12, X19, X20, X21, X22 and X130\u003c\/strong\u003e, as well as various circuits identified by \u003cstrong\u003eU, N, D, V and L\u003c\/strong\u003e designations.\u003c\/p\u003e\n\u003cp\u003eThe actual interface configuration may vary depending on the REFUSOL inverter model and hardware version.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e🧠 Electronic Architecture\u003c\/h3\u003e\n\u003cp\u003eThe board features a complex industrial electronic architecture including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSMD digital integrated circuits\u003c\/li\u003e\n\u003cli\u003eProgrammable logic devices\u003c\/li\u003e\n\u003cli\u003eProcessing and control circuits\u003c\/li\u003e\n\u003cli\u003eInterface circuits\u003c\/li\u003e\n\u003cli\u003ePower regulators and converters\u003c\/li\u003e\n\u003cli\u003eSignal conditioning circuits\u003c\/li\u003e\n\u003cli\u003eProtection components\u003c\/li\u003e\n\u003cli\u003eInductors\u003c\/li\u003e\n\u003cli\u003eSMD capacitors and resistors\u003c\/li\u003e\n\u003cli\u003eHigh-density multipole connectors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLattice\u003c\/strong\u003e components are also visible on the PCB and are used for programmable logic functions, together with numerous integrated circuits dedicated to signal processing and communication.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e☀️ Use in REFUSOL Inverters\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSR27000B.2\u003c\/strong\u003e is used as a \u003cstrong\u003econtrol and communication unit\u003c\/strong\u003e in REFUSOL inverter systems.\u003c\/p\u003e\n\u003cp\u003eThe board allows the system to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcquire information from measurement circuits\u003c\/li\u003e\n\u003cli\u003eProcess analog and digital signals\u003c\/li\u003e\n\u003cli\u003eCommunicate with the power section\u003c\/li\u003e\n\u003cli\u003eCommunicate with other electronic modules\u003c\/li\u003e\n\u003cli\u003eManage \u003cstrong\u003eRS485 and Ethernet\u003c\/strong\u003e interfaces\u003c\/li\u003e\n\u003cli\u003eInterface with the control panel\u003c\/li\u003e\n\u003cli\u003eManage input and output signals\u003c\/li\u003e\n\u003cli\u003eParticipate in inverter diagnostics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is therefore a specialized component primarily intended for \u003cstrong\u003erepair, maintenance and refurbishment of REFUSOL photovoltaic inverters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e⚠️ Errors \u0026amp; Faults Potentially Associated with the Board\u003c\/h3\u003e\n\u003cp\u003eA malfunction of the control board may contribute to certain inverter errors. Documented REFUSOL error codes include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x40001 – Internal Communication:\u003c\/strong\u003e internal communication error or timeout between the control board and power section.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x0A0000 – FPGA Firmware:\u003c\/strong\u003e FPGA firmware issue or firmware version incompatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x40010 – System Error 1:\u003c\/strong\u003e system error\/crash.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x090002 – Program CRC Error:\u003c\/strong\u003e program memory integrity check error.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x090004 – RAM Error 1:\u003c\/strong\u003e RAM memory error.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x090005 – MMU Exception:\u003c\/strong\u003e memory management\/protection error.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x0B0001 – System 1:\u003c\/strong\u003e system error-management fault.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x0B0002 – System 2:\u003c\/strong\u003e error memory full.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x0B0003 – System 3:\u003c\/strong\u003e error during error acquisition or management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0x0D0001 – System Error:\u003c\/strong\u003e communication problem with the power section during certain operations, including firmware updates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🔧 Important Diagnostic Note\u003c\/h3\u003e\n\u003cp\u003eThe appearance of one of these error codes \u003cstrong\u003edoes not necessarily mean that the SR27000B.2 board itself is defective\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor example, an internal communication error may be caused by the control board, power section, wiring, connectors or other inverter components.\u003c\/p\u003e\n\u003cp\u003eFor this reason, the board should be diagnosed on a \u003cstrong\u003ecompatible REFUSOL inverter\u003c\/strong\u003e before its functionality can be confirmed.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e🛠 Possible Symptoms of a Board Problem\u003c\/h3\u003e\n\u003cp\u003eDepending on the fault, a malfunctioning control board may result in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInverter failing to complete startup\u003c\/li\u003e\n\u003cli\u003eLoss of internal communication\u003c\/li\u003e\n\u003cli\u003eNo communication with the control panel\u003c\/li\u003e\n\u003cli\u003eSystem errors\u003c\/li\u003e\n\u003cli\u003eRS485\/Ethernet communication problems\u003c\/li\u003e\n\u003cli\u003eFirmware-related errors\u003c\/li\u003e\n\u003cli\u003eMemory errors\u003c\/li\u003e\n\u003cli\u003eLoss of communication with the power section\u003c\/li\u003e\n\u003cli\u003eInverter shutdowns or restarts\u003c\/li\u003e\n\u003cli\u003eFailure to complete the initialization process correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e🔧 Applications\u003c\/h3\u003e\n\u003cp\u003eThis board is primarily suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eREFUSOL inverter repair\u003c\/li\u003e\n\u003cli\u003eReplacement of damaged electronic boards\u003c\/li\u003e\n\u003cli\u003ePhotovoltaic system maintenance\u003c\/li\u003e\n\u003cli\u003eIndustrial inverter refurbishment\u003c\/li\u003e\n\u003cli\u003eREFUSOL equipment recovery\u003c\/li\u003e\n\u003cli\u003eElectronic diagnostics\u003c\/li\u003e\n\u003cli\u003eReplacement parts for specialized technicians\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📋 Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e REFU Elektronik\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e REFUSOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Logic \/ Control \u0026amp; Communication Board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003eSR27000B.2\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e \u003cstrong\u003e100289991\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCB Marking:\u003c\/strong\u003e SR27000B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacture:\u003c\/strong\u003e Made in Germany\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnology:\u003c\/strong\u003e High-density industrial electronic PCB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterfaces:\u003c\/strong\u003e Ethernet, RS485, analog and digital I\/O, internal connections, depending on inverter configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e REFUSOL photovoltaic inverters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📦 Package Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1 × REFU Elektronik SR27000B.2 Logic Control \u0026amp; Communication Board\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eOriginal PCB\u003c\/li\u003e\n\u003cli\u003eIntegrated electronic components and connectors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied exactly as shown in the photographs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e🟢 Product Condition\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUsed product.\u003c\/strong\u003e The board is sold in the condition shown in the photographs and may show normal signs of previous use and handling.\u003c\/p\u003e\n\u003cp\u003eThe components and connectors are visible in the photographs. \u003cstrong\u003eElectronic functionality has not been verified through testing on a compatible inverter\u003c\/strong\u003e. Therefore, without a functional test, the board should be considered \u003cstrong\u003eused and untested\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSold \u003cstrong\u003eexactly as shown in the photographs\u003c\/strong\u003e, without additional accessories or wiring unless specifically stated.\u003c\/p\u003e","brand":"REFU Elektronik","offers":[{"title":"Default Title","offer_id":54628917608781,"sku":null,"price":450.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0802\/3274\/3245\/files\/MG_6602.jpg?v=1788196288","url":"https:\/\/greenenergy-repair.com\/ro\/products\/refu-elektronik-sr27000b-2-refusol-inverter-logic-control-communication-board","provider":"Green Energy","version":"1.0","type":"link"}