SAJ R5-3K-T2-15 User Manual
SAJ R5-3K-T2-15 User Manual

SAJ R5-3K-T2-15 User Manual

Solar inverter

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R5
Series
User Manual
SAJ Solar Inverter
R5-3K/4K/5K/6K/8K/9K/10K/12K-T2-15
R5-3K/4K/5K/6K/8K/9K/10K/12K/13K/15K/17K/20K-T2
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Summary of Contents for SAJ R5-3K-T2-15

  • Page 1 Series User Manual SAJ Solar Inverter R5-3K/4K/5K/6K/8K/9K/10K/12K-T2-15 R5-3K/4K/5K/6K/8K/9K/10K/12K/13K/15K/17K/20K-T2 - 1 -...
  • Page 2 Series Preface Thank you for choosing SAJ solar inverter. 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.
  • Page 3: Table Of Contents

    Series Content PREFACE ........... - 1 - CHAPTER 1 SAFETY PRECAUTIONS ....- 4 - ........- 4 - 1.1 S COPE OF PPLICATION ........- 4 - 1.2 S AFETY NSTRUCTIONS ........... - 5 - 1.3 T ARGET ROUP CHAPTER 2 PREPARATION ......
  • Page 4 PERATION CHAPTER 7 FAULT CODE AND TROUBLESHOOTING. - 49 - CHAPTER 8 RECYCLING AND DISPOSAL .... - 52 - CHAPTER 9 CONTACT SAJ ......- 53 - SAJ WARRANTY POLICY ......- 54 - WARRANTY CARD ......... - 57 -...
  • Page 5: Chapter 1 Safety Precautions

    Series Chapter 1 Safety Precautions 1.1 Scope of Application This User Manual describes instructions and detailed procedures for installing, operating, maintaining, and troubleshooting of the following SAJ on-grid inverters: R5-4K-T2; R5-9K-T2; R5-3K-T2; R5-5K-T2; R5-6K-T2; R5-8K-T2; R5-10K-T2; R5-12K-T2; R5-13K-T2; R5-15K-T2; R5-17K-T2;...
  • Page 6: Target Group

    · Do not stay close to the inverter while there are severe weather conditions including storm, lighting, etc. · Before opening the housing, the SAJ inverter must be disconnected from the grid and PV generator; you must wait for at least five minutes to let the energy storage capacitors completely discharged after disconnecting from power source.
  • Page 7 Series CAUTION · The solar inverter will become hot during operation. Please do not touch the heat sink or peripheral surface during or shortly after operation. · Risk of damage due to improper modifications. NOTICE · Public utility only. · The solar inverter is designed to feed AC power directly to the public utility power grid; do not connect AC output of the inverter to any private AC equipment.
  • Page 8: Explanations Of Symbols

    The inverter complies with the safety instructions from China's Quality Center. No unauthorized operations or modifications Any unauthorized operations or modifications are strictly forbidden, if any defect or damage (device/person) occurs, SAJ shall not take any responsibility for it. - 7 -...
  • Page 9: Chapter 3 Product Information

    Series Chapter 3 Product Information 3.1 Application Scope of Products R5-XK-TX products are grid-tied three phase inverters without transformers, and the inverters are important components of grid-tied solar power systems. The R5 inverter converts the DC generated by solar panels into AC which is in accordance with the requirements of public grid and send the AC into the grid, Figure 3.1 shows the structural diagram of the typical application system of R5 inverter.
  • Page 10: Specification For Product Model

    Series 3.2 Specification for Product Model R5 – XK – T2-15 ○ ① ② ③ ① R5 represents for product name. ② XK represents rated power XkW of inverter, for example 4K means 4kW. ③ T means three phase; 2 represents the inverter has the function of dual MPPT. ○...
  • Page 11 Series Figure 3.3 Dimensions of R5-13K/15K-T2 Figure 3.4 Dimensions of R5-17K/20K-T2 - 10 -...
  • Page 12: Datasheet

    Series 3.4 Datasheet R5-3K/4K/5K/6K-T2 R5-3K-T2 R5-4K-T2 R5-5K-T2 R5-6K-T2 Type Input (DC) Max. PV Array Power [Wp]@STC 4500 6000 7500 9000 Max. DC Voltage[V] 1100 MPPT Voltage range [V] 160-950 Nominal DC Voltage[V] Start Voltage[V] Min. DC Voltage[V] Max. DC Input Current [A] 12.5/12.5 Max.
  • Page 13 Series Internal Over-voltage Protection Integrated DC Insulation Monitoring Integrated DCI Monitoring Integrated GFCI Monitoring Integrated Grid Monitoring Integrated AC Short Circuit Current Protection Integrated AC Grounding Detection Integrated DC Surge Protection Integrated AC Surge Protection Integrated Thermal Protection Integrated String Current Detection Integrated Anti-island Protection Monitoring Interface...
  • Page 14 Series R5-8K/9K/10K/12K-T2 Type R5-8K-T2 R5-9K-T2 R5-10K-T2 R5-12K-T2 Input (DC) Max. PV Array Power [Wp]@STC 12000 13500 15000 15600 Max. DC Voltage [V] 1100 MPPT Voltage Range [V] 160-950 Nominal DC Voltage [V] Start Voltage [V] Min. DC Voltage [V] Max. DC Input Current [A] 12.5/12.5 Max.
  • Page 15 Series DCI Monitoring Integrated GFCI Monitoring Integrated Grid Monitoring Integrated AC Short Circuit Current Protection Integrated AC Grounding Detection Integrated DC Surge Protection Integrated AC Surge Protection Integrated Thermal Protection Integrated String Current Detection Integrated Anti-island Protection Monitoring Interface AC Connection Plug-in connector DC Connection Human Machine Interface...
  • Page 16 Series R5-13K/15K/17K/20K-T2 Type R5-13K-T2 R5-15K-T2 R5-17K-T2 R5-20K-T2 Input (DC) Max. PV Array Power [Wp]@STC 19500 22500 25500 30000 Max. DC Voltage [V] 1100 MPPT Voltage Range [V] 160-950 180-950 Nominal DC Voltage [V] Start Voltage [V] Min. DC Voltage [V] Max.
  • Page 17 Series Grid Monitoring Integrated AC Short Circuit Current Protection Integrated AC Grounding Detection Integrated DC Surge Protection Integrated AC Surge Protection Integrated Thermal Protection Integrated String Current Detection Integrated Anti-island Protection Monitoring Interface AC Connection Terminal Block DC Connection Human Machine Interface LED+(Bluetooth/Wi-Fi+APP) Communication Port RS232(USB)+RS485(RJ45)
  • Page 18 Series R5-3K/4K/5K/6K-T2-15 R5-3K-T2-15 R5-4K-T2-15 R5-5K-T2-15 R5-6K-T2-15 Type Input (DC) Max. PV Array Power [Wp]@STC 4500 6000 7500 9000 Max. DC Voltage[V] 1100 MPPT Voltage range [V] 160-950 Nominal DC Voltage[V] Start Voltage[V] Min. DC Voltage[V] Max. DC Input Current [A] 15/15 Max.
  • Page 19 Series DC Insulation Monitoring Integrated DCI Monitoring Integrated GFCI Monitoring Integrated Grid Monitoring Integrated AC Short Circuit Current Protection Integrated AC Grounding Detection Integrated DC Surge Protection Integrated AC Surge Protection Integrated Thermal Protection Integrated String Current Detection Integrated Anti-island Protection Monitoring Interface AC Connection Plug-in connector...
  • Page 20 Series R5-8K/9K/10K/12K-T2-15 Type R5-8K-T2-15 R5-9K-T2-15 R5-10K-T2-15 R5-12K-T2-15 Input (DC) Max. PV Array Power [Wp]@STC 12000 13500 15000 15600 Max. DC Voltage [V] 1100 MPPT Voltage Range [V] 160-950 Nominal DC Voltage [V] Start Voltage [V] Min. DC Voltage [V] Max. DC Input Current [A] 15/15 Max.
  • Page 21 Series DCI Monitoring Integrated GFCI Monitoring Integrated Grid Monitoring Integrated AC Short Circuit Current Protection Integrated AC Grounding Detection Integrated DC Surge Protection Integrated AC Surge Protection Integrated Thermal Protection Integrated String Current Detection Integrated Anti-island Protection Monitoring Interface AC Connection Plug-in connector DC Connection Human Machine Interface...
  • Page 22: Chapter 4 Instructions For Installation

    4.2 Pre-installation Check 4.2.1 Check the Package Although SAJ’s inverters have surpassed stringent testing and are checked before they leave the factory, it is uncertain that the inverters may suffer damages during transportation. Please check the package for any obvious signs of damage, and if...
  • Page 23: The Determination Of The Installation Method And Position

    Series 4.3 The Determination of the Installation Method and Position 4.3.1 Mounting Method Figure 4.1 Mounting method ① The equipment employs natural convection cooling, and it can be installed indoor or outdoor. ② Please install the equipment under the guidance of Figure 4.1. Vertical installation on floor level is recommended.
  • Page 24: Mounting Procedure

    +60° C (-40° F ~ 140° F) to ensure optimum operation. Choose locations with sufficient air exchange. Ensure additional ventilation, when necessary. To make sure the installation spot is suitably ventilated, if multiple SAJ on-grid solar inverters are installed at the same area, the following safety clearance in Figure 4.2 shall be followed for proper ventilation conditions.
  • Page 25 Series Figure 4.3 Dimensions of rear panel of R5-3K/4K/5K/6K/8K/9K/10K/12K-T2 R5-3K/4K/5K/6K/8K/9K/10K/12K-T2-15 17.6 3-16*8 Figure 4.4 Dimensions of rear panel of R5-13K/15K-T2 17.6 3-16*8 Figure 4.5 Dimensions of rear panel of R5-17K/20K-T2 - 24 -...
  • Page 26 Series 4.4.2 Drill Holes and Place the Expansion Tubes Follow the given guides, drill 3 holes in the wall (in conformity with position marked in Figure 4.6, Figure 4.7 & Figure 4.8), and then place expansion tubes in the holes using a rubber mallet. Figure 4.6 Drill holes’...
  • Page 27 Series 比例 Figure 4.8 Drill holes’ dimensions of R5-17K/20K-T2 4.4.3 Mount the Screws and the Rear Panel The panels should be mounted in the mounting position by screws as shown in Figure 4.9. Figure 4.9 Mount the rear panel 4.4.4 Mount the Inverter Carefully mount the inverter to the rear panel as shown in Figure 4.10 and 4.11, Make sure that the rear part of the equipment is closely mounted to the rear panel.
  • Page 28 Series Figure 4.10 Mount inverter Figure 4.11 Fasten the inverter and hanging panel with screws - 27 -...
  • Page 29 Series 4.4.5 Install Anti-theft Lock As shown in figure 4.12 & figure 4.13, anti-theft lock could be added to the inverter and hanging panel. Diameter of the lock hole is φ6.0mm and anti-theft lock of which the diameter of lock hook is φ5.0mm is recommended. Users should prepare anti-theft lock by themselves.
  • Page 30: Chapter 5 Electrical Connection

    Series Chapter 5 Electrical Connection 5.1 Safety Instruction for Hot-line Job Electrical connection must only be operated on by professional technicians. Please keep in mind that the inverter is a bi-power supply equipment. Before connection, necessary protective equipment must be employed by technicians, including insulating gloves, insulating shoes and safety helmet.
  • Page 31: Specifications For Electrical Interface

    Series 5.2 Specifications for Electrical Interface Figure 5.1 Electrical interface of R5-3K/4K/5K/6K/8K/9K/10K/12K-T2 R5-3K/4K/5K/6K/8K/9K/10K/12K-T2-15 Code Name DC Switch Decompression Valves DC Input RS232 Communication (GPRS/ Wi-Fi /4G) Ground Connection RS485 Communication AC Output Table 5.1 Specifications for interface - 30 -...
  • Page 32 Series Figure 5.2 Electrical interface of R5-13K/15K-T2 Figure 5.3 Electrical interface of R5-17K/20K-T2 Code Name DC Switch Decompression Valves DC Input RS232 Communication (GPRS/ Wi-Fi /4G) RS485 Communication Ground Connection AC Output Table 5.2 Specifications for interface - 31 -...
  • Page 33: Ac Connection

    Series 5.3 AC Connection Cross-sectional area of cables(mm² ) External diameter(mm) Scope Recommended value 6.0-10.0 5.3~6.7 Table 5.3 Recommended power grid connecting cable specification If the grid-connection distance is too far, please select an AC cable with larger diameter as per the actual condition. 5.3.1 R5-3K~12K-T2 &...
  • Page 34 Series 3. Connect the cables according to connection marks of L1,L2,L3, N and PE. Figure 5.6 Connect cable 4. Screw all parts of the AC connector. Figure 5.7 Screw the connector 5. Connect the AC connector to the equipment securely, ensuring the pins are connected directly.
  • Page 35 Series 5.3.2 R5-13K~20K-T2 AC side electrical connection of the inverter. After penetrating the external hex head screw through OT Ground terminal of the grounding line, screw in the grounding port of inverter enclosure in clockwise direction and make sure it’s screwed up tightly. Figure 5.9 Inverter ground protection 2.
  • Page 36: Dc Side Connection

    Series AC waterproof nut. Figure 5.11 Tighten up AC interface protective cover and the locker 5.4 DC Side Connection Cross-sectional area of cables(mm² ) Outside diameter of the cables (mm) Scope Recommended value 4.0-6.0 4.2~5.3 Table 5.4 Recommended specifications of DC cables DC connector is made up of positive connector and the negative connector Figure 5.12 Positive connector 1.
  • Page 37 Series Figure 5.13 Negative connector 1. Insulated enclosure 2. Lock screw 3. Negative connector NOTICE · Please place the connector separately after unpacking in order to avoid confusion for connection of cables. · Please connect the positive connector to the positive side of the solar panels, and connect the negative connector to the negative side of the solar side.
  • Page 38 Series 3. Feed the positive and negative cables into corresponding lock screws. 4. Insert the positive and negative connectors into positive cable and negative cable whose insulated enclosure has been stripped off, and crimp them tightly with a wire crimper. Make sure that the withdrawal force of the pressed cable is bigger than 400N.
  • Page 39: Communication Connection

    Series 5.5 Communication Connection R5 inverter is standardly equipped with a RS485 interface and a RS232 interface. Figure 5.16 RS485 pin Pin Number Description Function GND_W Ground wire +7V_W Power supply RS485-A Transmission RS485 RS485-B differential signal Table 5.5 RS485 pin port definition - 38 -...
  • Page 40 Table 5.6 USB pin port definition 1. USB interface could be externally connected with eSolar GPRS/4G module, for operation in details please refer to eSolar GPRS/4G module Quick Installation https://www.saj-electric.com/ Guide in 2. USB interface could be externally connected with eSolar WiFi module, for operation in details please refer to eSolar WiFi module Quick Installation Guide in https://www.saj-electric.com/.
  • Page 41: Chapter 6 Debugging Instructions

    Series Chapter 6 Debugging Instructions 6.1 Introduction of Human-computer Interface Figure 6.1 Human-computer interface A-Power indicator light B-System status light C-Communication lamp Indicator Description LED lamps state lamp Yellow Always light on The inverter is just on power. Flicker: 1 s/time The inverter is in the initialization or waiting state. Green Always light on The inverter is in normal on-grid state.
  • Page 42: Monitoring Operation

    Account---Please use the installer account to login. Note: For the end user, please download and install the “eSolar Air” APP and log in to the APP or SAJ official website to register your account. 6.2.2 Nearby monitoring Connecting way 1 — Bluetooth connection After installing the eSolar GPRS/4G module (with built-in Bluetooh) the mobile phone could be directly connected with the inverter via Bluetooth.
  • Page 43 Series Connection setting iOS system operation steps 1. Choose “setting” →choose “Bluetooth””→ open 2. Log in APP → choose “My” interface → choose “Bluetooth” “Remote control” → choose connection way as “Bluetooth ” 3.Choose “next step” → search for equipment → 4.
  • Page 44 Series Connection setting Android system operation steps 1. Choose “setting” → choose “Bluetooth”→ open 2. Log in APP → choose “My” interface → choose “Bluetooth” “Remote control” → choose connection way as “Bluetooth ” 3.Choose “next step” → search for equipment → 4.
  • Page 45 Series Equipment information Connection way, running state, basic information, running information, Power information and events information of the communication of the inverter could be checked. 1. Click “Basic info” Inverter model, Module SN code, Module firmware version, Communication board firmware version, Main board firmware version, Slave board firmware version could be checked.
  • Page 46 Series Figure. 6.4 Running information 2. Click “Power info” Current power, today energy, monthly energy, yearly energy, total energy could be checked. Basic info Running info Power info Event info Read More Figure. 6.5 Power information - 45 -...
  • Page 47 Series 3. Click “Event info” Time of the events, events sequence number (referring to fault codes details in Chapter 7 Fault Codes and Common Troubleshooting) and events content of the faults of the inverter could be checked. Figure. 6.6 Events information Connecting way 2 —...
  • Page 48 Series Connection setting Please refer to the eSolar WiFi module operating manual for more details in operation. Equipment information Connection way, running state, basic information, running information, Power information and events information of the communication of the inverter could be checked.
  • Page 49 Series 6.2.3 Remote monitoring 1. Connect the internet via the eSolar GPRS/4G module, and upload the inverter data onto the server and customers could monitor running information of the inverter remotely via the eSolar Web Portal or their mobile customer terminals. 2.
  • Page 50: Chapter 7 Fault Code And Troubleshooting

    Series Chapter 7 Fault Code and Troubleshooting Error Code Explanation Relay Error Master Storer Error Master High Temperature Master Low Temperature Master Interior Communication Error Master GFCI Devices Error Master DCI Devices Error Master Current Sensor Error Master L1/L2/L3 Over Voltage Master 09/11/13 L1/L2L3 Low Voltage Master 10/12/14...
  • Page 51 Check whether the radiator is blocked, whether the inverter is High Temperature in too high or too low temperature, if the above mentioned is Error in normal, please contact your distributor or call SAJ technical support. If this error occurs frequently, please contact your distributor GFCI Device Error or call SAJ technical support.
  • Page 52 Error inverter and the grid, if the above mentioned are in normal, please contact your distributor or call SAJ technical support. Check the insulation resistance of the positive side and negative side of the solar panel; check whether the inverter is GFCI Error in wet environment;...
  • Page 53: Chapter 8 Recycling And Disposal

    Series Fault Information Troubleshooting Check the settings of the solar panel. SAJ designer can help Over Bus Voltage you. If the above mentioned are in normal, please contact your distributor or call SAJ technical support. If this error always exists, please contact your distributor or Overcurrent call SAJ technical support.
  • Page 54: Chapter 9 Contact Saj

    Series Chapter 9 Contact SAJ Guangzhou Sanjing Electric Co., Ltd. SAJ Innovation Park, No.9, Lizhishan Road, Guangzhou Science City, Guangdong, P.R.China. Web: http: //www.saj-electric.com Technical Support & Service Tel:+86 20 6660 8588 Fax:+86 20 6660 8589 E-mail: service@saj-electric.com International Sales...
  • Page 55: Saj Warranty Policy

    Series SAJ Warranty Policy 1.1 Standard Warranty Period Starting from the date of shipment from SAJ factory or 60 months (5 years) starting from the date of purchased invoice marked (whichever is longer). 1.2 Extension of Warranty The purchaser of SAJ inverters should extend the warranty period in 18 months from the date of settlement or 30 months from the date of shipment from SAJ by providing the serial number of the unit and purchased receipt (whichever is shorter).
  • Page 56 SAJ Service Center by packing in its original package if possible. 1.5 Service after Warranty Expiration If the inverters for maintenance are out of warranty, SAJ charges an on-site service fee, parts, labor cost and logistic fee to end-user. Detailed standard refers to the listed table.
  • Page 57 (hardware or software) and debugging the faulty product. ■ Logistic fee: Cost of delivery, tariff and other derived expense when defective products are sent from user to SAJ or/and repaired products are sent from SAJ to user. 1.6 Exclusion of Liability Any defect caused by the following circumstances will not be covered by the manufacturer’s warranty (the Dealers or Distributors are responsible and authorized...
  • Page 58: Warranty Card

    Series Warranty Card The installer should fill in the second form while installing the inverter. For warranty claim, please complete the below forms and send this page to SAJ attached with the Customer’s invoice. For customer to fill in Name:...
  • Page 59 Series For installer to fill in Modules used: Modules per string: No. of string: Installation company: Contractor license number: Company: City: Country: Zip: Tel: Fax: E-mail: Signature: Date: - 58 -...
  • Page 60 Series V2.0 - 59 -...

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