SAJ H2 Series User Manual

Hybrid inverter

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H2 Series

Series

HYBRID INVERTER

USER MANUAL

H2-(5K-10K)-LS2

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

V1.0

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Page 1 H2 Series Series HYBRID INVERTER USER MANUAL H2-(5K-10K)-LS2 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 V1.0...
Page 2 H2 Series Preface Thank you for choosing SAJ products. We are pleased to provide you first-class products and exceptional service. This manual provides information about installation, operation, maintenance, troubleshooting and safety. Please follow the instructions of this manual so that we can ensure delivery of our professional guidance and whole-hearted service.
Page 3 H2 Series TABLE OF 4.3. Opening the Junction Box of the Inverter............................30 4.4. Assembling the AC-side Electrical Connection..........................31 4.5. Connecting the Battery to the Inverter ............................34 CONTENTS 4.6. Assembling the Communication Connection ..........................35 4.7. Assembling the PV-side Electrical Connection..........................41 4.8.
Page 4 ■ 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. SAJ shall take no responsibility for any personal injuries or property damage caused by improper use.
Page 5 · Do not stay close to the inverter while there are severe weather conditions including storm, lightning, etc. · Before opening the housing, the SAJ inverter must be disconnected from the grid and PV generator; you must wait for at least...
Page 6 H2 Series 1.5. Explanations of Symbols To ensure the safety of people and equipment, follow the safety symbols on the equipment. Symbol Description Dangerous electrical voltage This device is directly connected to public grid, thus all work to the inverter shall only be carried out by qualified personnel.
Page 7 H2 Series 2.1. General Introduction The SAJ H2 series low-voltage inverter is a transformer-less hybrid solar inverter, which is a key component of a complete energy storage system. The inverter contains maximum power point tracking (MPPT), battery charging/discharging circuit and full-bridge inverting circuit.
Page 8 2.3. Dimension 2.4. Bottom View 241mm 380mm E F G H I J K Figure 2.2. Dimension of the H2 series inverter Figure 2.3. Bottom View of the H2 series inverters Callout Silkscreen Description DC SWITCH DC switch Cable gland: For battery cable connection...
Page 9 H2 Series 2.5. Electrical Terminals 2.6. LED Status Indicators Figure 2.4. Terminals in the junction box Figure 2.5. LED status indicators and buttons Callout Silkscreen Description Color LED indicator Status Description Solid on The grid is connected and working properly.
Page 10 H2 Series Button Description Model H2-5K-LS2 H2-6K-LS2 H2-7.6K-LS2 H2-8K-LS2 H2-10K-LS2 < 3% Exit the current operations. Total harmonic distortion [THDi] AC Output [Back-up Mode] Move the screen up one line. Max. Output Power [VA] 5000 6000 7600 8000 10000 Move the screen down one line.
Page 11 H2 Series Model H2-5K-LS2 H2-6K-LS2 H2-7.6K-LS2 H2-8K-LS2 H2-10K-LS2 Wi-Fi, Ethernet, or 4G (optional) Communication General Data Topology Non-isolated -40℃ to +60℃ (-40℉ to 140℉) Operating temperature range [50℃ to 60℃ with derating] Cooling method Intelligent fan cooling Ambient humidity 0%–100% No condensation Altitude 4000m (>3000m Power derating)
Page 12 H2 Series 3.1. Installation Diagram On-Grid Battery Load Figure 3.1. Applicable scenario The following installation examples should be avoided. Any damage caused will not be covered by the warranty policy. INSTALLATION Battery Battery Single battery bank can not be connected to multiple inverters.
Page 13 ■ Outer Packing Generator Although SAJ’s inverters have passed stringent test and are checked before they leave the factory, the inverters may still suffer damages during transportation. 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 14 H2 Series 3.5. Wall Mounting Step 1. Depending on your configurations, choose one of the following manners to mark and drill screw holes on the wall: Note: Reserve enough distance at the inverter bottom for cable connection. ⚫ Configurations without a hole positioning paper: The distance between the upper and the bottom screw holes is 546 mm.
Page 15 H2 Series ⚫ Configurations with a hole positioning paper: The distance between the upper and the bottom screw holes Step 2. Use a rubber mallet to insert four expansion tubes into the holes. Insert four M6*50 expansion bolts into the is 560 mm.
Page 16 Note: For regulation compliance, you can install a battery isolator ≥70A near the inverter, except that you are using the SAJ B2 battery model which has a built-in DC isolator in its low-voltage box unit: B2-5.0-LV1 or B2-5.0-LV2...
Page 17 Earth fault alarm: This inverter complies with IEC 62109-2 clause 13.9 for earth fault alarm monitoring. If an earth fault alarm occurs, an error code <31> can be viewed on the SAJ App Elekeeper. Note: The inverter cannot be used with functionally earthed PV Arrays.
Page 18 H2 Series Opening 4.3. the Junction Box of the Inverter Procedure Connect the grounding cable as shown below: On both sides of the junction box cover, use the Allen Wrench to loosen the screws. Then, remove the cover. Figure 4.1. Installing the grounding cable...
Page 19 H2 Series Assembling 4.4. the AC-side Electrical Connection If needed, you can put an insulation terminal on the cable end, as shown below: For safety and regulation compliance, a circuit breaker is required to be installed between the grid and the inverter.
Page 20 • For battery details, refer to the B2-5.0-(LV1, LV2) User Manual • The H2 series inverter is only compatible with the batteries listed above, using of any other untested battery might cause damage to the inverter and thus void the inverter warranty.
Page 21 H2 Series Description GND: Ground wire Step 2. Insert the cables through the cable gland BAT and connect the cables to the battery terminals BAT+ and BAT- in the junction box. 485A: 485 communication pin A 485B: 485 communication pin B...
Page 22 H2 Series Step 2. Insert the communication module into the 4G/WIFI port and secure the module by rotating the nut on the module. 1 2 3 4 5 6 7 8 9 10 Figure 4.10. Connecting the communication module 4.6.2. Connecting the Battery Temperature Sensor (Optional) About this task If lead-acid batteries are used, you need to use the battery temperature sensor.
Page 23 H2 Series 4.6.3. Connecting the Communication Cables Insert the prepared communication cables through the COM1 and COM2 cable glands and connect to corresponding RJ45 ports. RJ45 ports Note: To locate the RJ45 communication ports, refer to section 2.5 "Electrical Terminals".
Page 24 H2 Series 4.7. Assembling the PV-side Electrical Connection Step 1. Strip off the insulation (20-mm/0.79-inch length) of the cable ends. User cable ferrules if the cable is of multi- strand type. Cable Recommended cable Recommended torque 25 LB-IN (1.68 N·m)
Page 25 H2 Series 4.8. System Connection 4.9. External CT connection On-grid loads PV array GRID GRID Back-up load BACKUP Load BMS_CAN RJ45 Figure 4.16. With generator BAT- BAT+ Meter GRID GRID R 485 BACKUP Load IA Blue Battery Generator BMS_CAN RJ45 Grid Figure 4.17.
Page 26 H2 Series 4.10. Parallelling Wiring On-grid loads Discrete Load Sharing and Parallel Operation: In the grid-connected mode, the inverters work collaboratively through an intelligent energy management system to balance their respective loads; whereas, in the off-grid mode, each inverter independently carries its connected load.
Page 27 H2 Series 5.1. Startup 5.1.1. Starting the System To start the inverter, perform as follows: Step 1. Open the breaker on the grid side. Step 2. Turn on the DC switch on the inverter. Step 3. Turn on the battery switch on the battery.
Page 28 H2 Series You can tap the setting icon on the top right corner and follow the instructions on the screen to cofnigure the parameters. 5.2. Shutdown To shut down the inverter, perform as follows: Step 1. Close the breaker on the grid side.
Page 29 H2 Series 6.1. Downloading the App The Elekeeper App can be used for both nearby and remote monitoring. Depending on the communication module used, it supports Bluetooth/4G or Bluetooth/Wi-Fi to communicate with your energy storage system (ESS). On your mobile phone, search for “Elekeeper” in the App store and download the App.
Page 30 H2 Series 6.3. Performing the Initialization Settings To apply for a new account, perform as follows: Tap the three-dot icon on the top right corner. Choose the language and network node based on your needs. Prerequisite Tap Register. Choose whether you are an owner or an installer or distributor.
Page 31 H2 Series Complete the initialization settings by following the instructions on the screen. Battery brand and settings Parallel connection settings Configuration Corresponding parallel mode Multiple H2 + B2 (parallelling) Storage on-grid parallel One H2 + B2 + solar inverter (AC-coupling)
Page 32 H2 Series Meter and system schematic Export limitation settings Examples: If you have set Wiring to CT, you need to set CT Transformation Ratio.
Page 33 H2 Series Working mode Country and grid compliance Example of Self-Consumption Mode:...
Page 34 H2 Series 6.4. Configuring the Communication Module Initialization completion About this task If you want to remotely monitor the energy storage system and view the device statistics (for example, when you are away from home), connect the communication module installed on the inverter to the network.
Page 35 H2 Series 6.5. Creating a Plant Apply for an account for the end user. On the Management page, tap the icon on the top right corner. Select Create Plant for Owner.
Page 36 In typical household scenarios, it is no need to change these default parameter values. If you really need to change them, before any modifications, contact SAJ for consultation and ensure that you have necessary electric knowledge and are fully aware of the impact of such modifications.
Page 37 One test will take around 5 minutes. If you have selected All test, all tests will take around 40 minutes. After the self-test is completed, you can save the test report. If the self-test failed, contact SAJ or your inverter supplier. 6.7. Configuring Self-test (For Italy) About this task Italian Standard CEI0-21 requires a self-test function for all inverters connected to the utility grid.
Page 38 H2 Series 6.8. Smart Load Setting ⚫ Voltage control: 45.0 ⚫ SOC control: Smart load Smart load When the battery connected to the inverter is a lead-acid battery, the intelligent load switch control method can choose voltage control or SOC control. When the connected battery is a lithium iron phosphate battery, only SOS control is available.
Page 39 H2 Series For any errors reported as below, contact the after-sales for service support. The operations and maintenance must be performed by authorized technicians. Error code Error message Master Relay Error Master EEPROM Error Master Temperature High Error Master Temperature Low Error Lost Communication M<->S...
Page 40 H2 Series Error code Error message Error code Error message Master Bus Voltage Low Slave Frequency High Master Grid Phase Error Slave Frequency Low Master PV Voltage High DCDC Lost.ConniWarn Master Islanding Error DCDC Device Error Master HW Bus Voltage High Parall CAN Lost Com.
Page 41 Check the product warranty conditions and terms on the SAJ website: https://www.saj-electric.com/ 9.3. Contacting Support Guangzhou Sanjing Electric Co., Ltd. Address: SAJ Innovation Park, No.9, Lizhishan Road, Guangzhou Science City, Guangdong, P.R.China. Postcode: 510663 Website: https://www.saj-electric.com/ Technical Support & Service...

This manual is also suitable for:

H2-5k-ls2 H2-6k-ls2 H2-7.6k-ls2 H2-8k-ls2 H2-10k-ls2