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Summary of Contents for DISCOVER SAJ SBU Series
- Page 1 Smart Backup Unit Series SMART BACKUP UNIT Tel: (86)20 66608588 Fax: (86)20 66608589 Web: www.saj-electric.com GUANGZHOU SANJING ELECTRIC CO.,LTD Add: SAJ Innovation Park,No.9, Lizhishan Road,Science City, Guangzhou High-tech Zone , Guangdong, P.R.China USER MANUAL {=2*{page}-1} V1.0...
- Page 2 Smart Backup Unit Preface Thank you for choosing SAJ Smart Backup Unit. We are pleased to provide you first-class products and exceptional service. This manual includes information for installation, operation, maintenance, trouble shooting and safety. Please follow the instructions of this manual so that we can ensure delivery of our professional guidance and wholehearted service.
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Page 3: Table Of Contents
Smart Backup Unit 4.2 Installation and Position ............................14 TABLE OF 4.2.1 Installation Position and Clearance ................... 14 4.2.2 Mounting Method ........................... 16 4.3 Mounting Procedure ..............................17 CONTENTS 4.3.1 Installation Tools ..........................17 4.3.2 Mounting Procedure ........................17 5. ELECTRICAL CONNECTION ........................21 5.1 Earth Fault Alarm ................................ -
Page 4: Scope Of Application
Smart Backup Unit ■ Before installing, using, and maintaining this equipment, read the safety information and precautions thoroughly, and comply with them during operations. ■ Failure to follow any of the instructions or warnings in this document can result in electrical shock, serious injury, or death, or can damage the equipment, potentially rendering it inoperable. -
Page 5: Safety Instructions
Smart Backup Unit 2.1 Safety Instructions For safety, be sure to read all the safety instructions carefully prior to any works, and please observe the appropriate rules and regulations of the country or region where you installed this product. DANGER ·Please keep the power off prior to any operations. -
Page 6: Explanations Of Symbols
Smart Backup Unit NOTICE ·During installation of the Smart Backup Unit, circuit breaker must be disconnected from the inverter, grid and generator wiring. ·The Smart Backup Unit used as a set with SAJ's H2 high voltage series storage inverter, otherwise it cannot be used normally. -
Page 7: Product Information
Smart Backup Unit 3.1 Application Scope of Products The Smart Backup Unit (SBU-200) controls the switch of the relays to provide power to the load stated as backup unit. Power Supply load in both grid-tied and off-grid conditions. There is a contactor in SBU-200) to provide user a simple connection. -
Page 8: Overview Of Products
Smart Backup Unit 3.2 Specification for Product Model – X.X ① ② ①SBU for product name. ②X.X represents Max. XA load access capacity of Smart Backup Unit, for example, 200 means 200A. Figure 3.3 Dimensions of wall bracket 3.3 Overview of Products 3.4 Cable Holes Callout Name... -
Page 9: Data Sheet
Smart Backup Unit 3.5 Datasheet Model SBU-200 Max. Continuous Power Max. Continuous Power 38400W@240V Grid Nominal AC Voltage 208V,240V Nominal AC Frequency 60Hz Max. Protection current 200A AC 41600W@208V Max. Continuous Power 48000W@240V Load Nominal AC Voltage 208V,240V Nominal AC Frequency 60Hz Max. -
Page 10: Instructions For Installation
Smart Backup Unit 4.1 Unpacking and Inspection 4.1.1 Checking the Package Although SAJ’s SBU have thoroughly tested and checked before delivery, it is uncertain that the SBU may suffer damages during transportation. Please check the package for any obvious signs of damage, and if such evidence is present, do not open the package and contact your dealer as soon as possible. -
Page 11: Mounting Method
Smart Backup Unit 4.2.2 Mounting Method Please reserve enough clearance around the SBU to ensure a good air circulation at the installation area. Because poor air ventilation will affect the working performance of internal electronic components and shorten the service life of the system. Note: The SBU is installed within 5m of the H2 high-voltage energy storage machine. -
Page 12: Mounting Procedure
Smart Backup Unit Wall Mounting • Keep away from children. Make sure that the wall is capable of mounting screws and supporting the weight of the SBU before installation. • Do not install in daily working or living arears, including but not limited to the following areas: bedroom, For safety reason, solid wall is recommended for wall mounting, cavity wall and timber wall are not allowed to lounge, living room, study, toilet, bathroom, theater and attic. - Page 13 Smart Backup Unit Step4: Tighten the screws on both sides of the wall bracket. Step2: Remove the wall mount and drill 4 holes were marked, Drill holes withφ8 drill Depth: at least 55mm. Figure 4.5 Drilling holes for the wall bracket Step3: First knock expansion screw into the hole with Rubber hammer and then place the wall bracket align Figure 4.7 with the marked position on the wall.
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Page 14: Electrical Connection
Smart Backup Unit 5.1 Earth Fault Alarm This inverter complies with IEC 62109-2 clause 13.9 for earth fault alarm monitoring. If an earth Fault Alarm Installation finished Installation finished occurs, the second LED indicator will be lit up until the error being solved and inverter functioning properly. Note: The inverter cannot be used with functionally earthed PV Arrays. -
Page 15: Sbu Diagram Of Wiring
Smart Backup Unit 5.3 SBU Diagram of Wiring 2. Cable description. Conductor Cross Recommended Cable Type sectional Source cable Area Range 1.Use cables that can withstand L1, L2: 250MCM~6 AWG L1, L2: 0AWG 90°C (194°F) or 105°C (221°F). Purchased by LOAD N: 250KCMIL~6AWG N: 4AWG*2... -
Page 16: Load Connection
Smart Backup Unit 5.4 LOAD Connection 5.5 GRID Connection Step 1: Use the screwdriver to loosen screws in positions L1 and L2 at the contactor's “LOAD” inputs. Step 1: Use the screwdriver to loosen screws in positions L1 and L2 at the contactor's “GRID” inputs. Step 2: Insert L1 (Black) and L2 (Red) of the “LOAD”... -
Page 17: Inv Connection
Smart Backup Unit 5.6 INV Connection 12V power cables connection: Step 1: Insert the 12 V power cables (red and black) through cable hole D. For cable hole location, see section Conductor connection: 3.4 “Cable holes”. Step 1: Use the screwdriver to loosen screws in positions L1 and L2 at the contactor's “INV” inputs. Step 2: Connect the 12V power cables from positions 1 and 4 in the SBU to positions 9 and 10 of the high- Step 2: Insert L1(Black) and L2(Red) of the “INV”conductors in to the “INV”... - Page 18 Smart Backup Unit Non-parallel situation: Communication cable connection parallel situation: Communication cable connection Step 1: Communication Cable connection: H2-CAN connected to the inverter GATEWAY_CAN connection. Step 1: Communication Cable connection: H2-CAN connected to the inverter GATEWAY_CAN connection. Step 2: The communication cable is connected through the COM port at the bottom of the SBU. Step 2: Communication Cable connection: H2-RS485 connected to the inverter SBU-485 connection.
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Page 19: Gen Connection
Smart Backup Unit 5.7 GEN Connection Communication Interface: Notes: 1) The communication cable is one end crimped, this crimped end is for SBU side connection. The other Step 1: Use the screwdriver to loosen screws in positions L1 and L2 at the contactor's “GEN” inputs. end is for inverter side connection. -
Page 20: Wi-Fi Connection
Smart Backup Unit 5.8 4G /Wi-Fi Connection LED Indicators: Serial Port Definition: SBU has an RS232 communication port integrated, located at the bottom of the wiring compartment and with Pin Number LED Indicator Description the appearance of USB port. This port is used to connect the monitoring devices such as Wi-Fi module, etc. Off: Power off ON: Startup normal Pin Number... - Page 21 Smart Backup Unit 5.9 CT Connection Step 2: Connecting the CT on L1: Connect the white cables of the CT to position 1 on the SBU terminal, and the blue Step 1: The CT contactor input terminals of the SBU include GEN-CT, MAIN-CT, GRID-CT, and mini-INV, and cables to position 2 on the SBU terminal.
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Page 22: System Connection
Smart Backup Unit 5.10 System Connection 5.10.2 Partial-Home Backup 5.10.1 Whole-Home Backup The Pg_CT4 is used to monitoring the power of total house loads. They are connected to the contactor input terminals on the SBU internal communication board. The name is‘MAIN-CT’. 1.Whole-Home backup loads are connected to ‘LOAD’... -
Page 23: Recyling&Disposal
Smart Backup Unit 6.1 Recycling and Disposal The device should not be disposed as residential waste. The SBU that has reached the end of its life and is not required to be returned to your dealer, it must be disposed carefully by an approved collection and recycling facility in your area. -
Page 24: Troubleshooting
Smart Backup Unit Troubleshooting Error Description Explanation Solution 1.Power off, check whether the load is short-circuited. 2.Check whether the load power exceeds the rated output Load Overload Load power is too high power of the SBU. 3.Contact the local SAJ technical support service center or supplier. -
Page 25: Warranty
Smart Backup Unit Error Description Explanation Solution Error Description Explanation Solution The status check of the 1.Turn off the power, plug and unplug the wire of the grid 1.Power off, check if the wiring of the grid is correct. The frequency of grid Grid Relay grid-connected control relay again to eliminate the problem of poor contact.
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