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Sinexcel Isuna 8000SO User Manual

Single phase lv off-grid inverter
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Single phase LV Off-grid Inverter
Isuna 8000SO-12000SO
Shenzhen Sinexcel Isuna
Energy Technology Co.,LTD.

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Summary of Contents for Sinexcel Isuna 8000SO

  • Page 1 Single phase LV Off-grid Inverter Isuna 8000SO-12000SO Shenzhen Sinexcel Isuna Energy Technology Co.,LTD.

  • Page 2: Table Of Contents

    Isuna 8000-12000SO Catalogue 1.Overview .......................... 1 1.1 Scope of Application ..................1 1.2 Intended Users ....................1 1.3 Symbols Used in This Manual ..............1 2. Safety Precautions .......................2 2.1 Operation Safety ..................... 2 2.2 PV String Safety ....................2 2.3 Battery Safety ....................3 2.4 Inverter Safety ....................
  • Page 3 Isuna 8000-12000SO 6.1 Electrical System Connection Diagram ..........17 6.2 External Port Wiring Instructions ............19 6.3 Connecting the Battery Cable ..............20 6.4 Connecting AC LOAD、AC GRID .............22 6.5 Connecting PV ....................23 6.7.1 NTC connection for lead acid battery ........26 7.

  • Page 4: Overview

    1.1 Scope of Application This document applies to the inverters of the following models: Model Rated output power Rated output voltage Isuna 8000SO 8000W Isuna 10000SO 10000W 220V，L/N/PE Isuna 12000SO 12000W 1.2 Intended Users...

  • Page 5: Safety Precautions

    Isuna 8000-12000SO Indicates a potentially hazardous situation that, if not avoided, may cause equipment failure or property damage. 2. Safety Precautions The safety precautions contained in this document must be followed when operating the inverter. The inverter has been designed in strict accordance with safety regulations and has ...

  • Page 6: Battery Safety

    Isuna 8000-12000SO Ensure that the assembly frame is properly grounded to the support system.  After connecting DC cables, ensure that the cables are securely connected.  Use a multimeter to check whether the positive and negative DC wiring terminals of the ...

  • Page 7: Personnel Requirements

    Isuna 8000-12000SO Ensure that the voltage and frequency of the grid-connected access point comply with the  inverter grid-connected specifications. A protection device, such as a circuit breaker or fuse, is recommended for the AC side of  the inverter. Ensure that the protection device is greater than 1.25 times the maximum AC output current of the inverter.

  • Page 8: Equipment Inspection And Storage

    Isuna 8000-12000SO surface. It indicates Connect the inverter to ground for grounding grounding protection purpose. terminal. It indicates Please read and understand this manual reading the carefully before installing the inverter. manual. 3.Equipment Inspection and Storage 3.1 Pre-signing Inspection Before signing for the product, please check the following: Check the outer packing for holes, distortions, cracks, or other signs that may cause ...
  • Page 9 Isuna 8000-12000SO Bubble level Parallel communication line M8 hex wrench M4 hex wrench BMS communication line Screw M5*10 8PCS Expansion anchor bolts 4pcs M8*80 User Manual...

  • Page 10: Equipment Storage

    Isuna 8000-12000SO Warranty Card 3.3 Equipment Storage If the inverter is not put into use immediately, store it according to the following requirements: Ensure that the outer packing case is not removed and the desiccant is not lost.  Ensure that the storage environment is clean and within appropriate temperature and ...

  • Page 11: Application Scenario

    Isuna 8000-12000SO 4.2 Application Scenario The photovoltaic system is not suitable for devices that rely on stable power supply, such  as life-sustaining medical devices. Ensure that no personal injury is caused when the system is powered off. Do not use a load with a high starting current in the photovoltaic system. Otherwise, the ...

  • Page 12: Appearance Description

    Isuna 8000-12000SO 4.3 Appearance Description 4.3.1 Appearance Description Please carefully inspect the packaging and accessories of the product before installation.

  • Page 13: Size Description

    Isuna 8000-12000SO Table 4-1 Appearance of the inverter PE grounding PV DC input port (PV+/-) WiFi antenna Overload reset button Battery DC input port (BAT+/-) Grid AC wiring port Multifunctional communication Load wiring port interface Battery power button 4.3.2 Size Description...
  • Page 14 Isuna 8000-12000SO...

  • Page 15: Installation

    Isuna 8000-12000SO 5 Installation 5.1 Installation Requirements 5.1.1 Installation Environment Requirements 1) The equipment must not be installed in flammable, explosive, corrosive and other environments. 2) The installation position should be away from water pipes and cables in the wall to avoid danger during drilling.

  • Page 16: Mounting Tools

    Isuna 8000-12000SO 3) When the equipment is running, it will make noise. Do not install it on the carrier with poor sound insulation, so as to avoid the noise emitted by the equipment when it is working, which will cause trouble to residents in the living area. 5.2 Mounting Tools Table 5-1 List of installation tools Series No.

  • Page 17: Inverter Transportation

    Isuna 8000-12000SO Marking pen Drilling mark Tape Measurement distance horizontal Keep inverter horizontal ruler Protective Wear when setting up the gloves inverter Goggles Wear when drilling holes Dust mask Wear when drilling holes 5.3 Inverter Transportation Remove the inverter from the outer packaging and carry it horizontally to the designated mounting position.

  • Page 18: Wall Mounted

    Isuna 8000-12000SO When carrying out the transportation, turnover, and installation, you must comply with the  laws, regulations and related standards of the country or region where you are located. The inverter is heavy. Please keep it balanced during handling to prevent the inverter from ...
  • Page 19 Isuna 8000-12000SO...

  • Page 20: Electrical Connection

    Isuna 8000-12000SO 6. Electrical Connection Before installation and maintenance, ensure that the AC/DC side is not powered on. The capacitors are still powered on for a period of time after the inverter is powered off. Therefore, wait at least five minutes to ensure that the capacitors are fully discharged. single -phase hybrid inverters are used in battery energy storage photovoltaic systems.
  • Page 21 Isuna 8000-12000SO Recommended circuit breaker specifications: DC circuit breaker 250A; AC circuit breaker: 120A. System electrical connection...

  • Page 22: External Port Wiring Instructions

    Isuna 8000-12000SO 6.2 External Port Wiring Instructions Select the cable size applicable to the parameters of the inverter according to its model. Table 6-1 Cable Model and Specification Descriptions Cable Port Definition Cable specification type +: Connect to battery Outdoor positive pole Multi-Core Wire cross sectional...

  • Page 23: Connecting The Battery Cable

    Isuna 8000-12000SO Cable Outdoor Multi-Core Wire cross sectional Copper area: <2.5mm² Cable 6.3 Connecting the Battery Cable Battery short circuit may cause personal injury, and  the instantaneous high current caused by the short circuit may release a large amount of energy, which may cause a fire.
  • Page 24 Isuna 8000-12000SO When wiring, the battery cable should match the  "BAT+" "BAT-" battery terminal completely. If the cable is connected incorrectly, the equipment will be damaged. Please make sure that the wire core is completely  inserted into the terminal wiring hole without being exposed.

  • Page 25: Connecting Ac Load、Ac Grid

    Isuna 8000-12000SO 6.4 Connecting AC LOAD、AC GRID When wiring, the AC wire should fully match the "L", "N"  and grounding ports of the AC terminal. If the cable is connected incorrectly, it will cause equipment damage. Please make sure that the wire core is completely ...

  • Page 26: Connecting Pv

    Isuna 8000-12000SO 6.5 Connecting PV Do not connect the same PV string to multiple  inverters, or the inverter may be damaged. Before connecting the PV strings to the inverter,  please confirm the following information, or it may cause permanent damage to the inverter, and even cause a fire and result in personal and property losses.
  • Page 27 Isuna 8000-12000SO The PV string output does not support grounding.  Before connecting the PV string to the inverter, ensure that the minimum insulation resistance of the PV string to ground meets the minimum insulation resistance requirements. Please make sure that the wire core is completely ...
  • Page 28 Isuna 8000-12000SO 6.7Connecting Communication Cables Multi-function communication port, including BMS communication, RS485 communication and parallel communication. Connect the cable to the communication port on the device. The pin assignment of the RJ45 socket of the communication cable is as follows: Figure 6.4 RJ45Sequence of RJ45 crystal terminals: Orange＆...

  • Page 29: Ntc Connection For Lead Acid Battery

    Isuna 8000-12000SO BMS/CAN/RS485 Communication Connection Definition Fuction Note TEMP_BAT TEMP_BAT CAN_A_H CANH data CAN_A_L CANL data GND_SELV Grounding RS485_A_BMS RS485A RS485_B_BMS RS485B Note：① Communication with lithium batteries requires attention to the communication port order and pin definition of the battery; ②...
  • Page 30 Isuna 8000-12000SO When using the lead battery, insert the completed NTC crystal head into the DRMS interface, and stick the NTC outside the lead battery. ②Do not use NTC connection If the temperature sampling function is not needed when using the lead battery, users need to access a 100KΩ...

  • Page 31: Inverter Operation

    Isuna 8000-12000SO 7. Inverter Operation 7.1 Pre-power-on Inspection Serial Check the entry The inverter is firmly fixed to the mounting bracket on the wall. Cables are bundled according to cable routing requirements, properly distributed, and without damage. PV+/PV-, BAT+/BAT- cables are firmly connected, the polarity is correct, and the voltage is within the accessible range.
  • Page 32 Isuna 8000-12000SO Specific working mode: When the PV is sufficient, the PV priority for supplies power to the load, and excess power  charges the battery. If the PV is insufficient and the battery SOC is more than the minimum SOC, the load is ...

  • Page 33: Timed Charge Mode

    Isuna 8000-12000SO and the grid supply power to the load and the battery standby. If the PV is not working and the battery SOC is less than the minimum SOC, the grid  supplies power to the load and the battery standby. 7.3.2 Timed Charge Mode Function：...
  • Page 34 Isuna 8000-12000SO When the PV is not working, the grid supplies power to the load and battery  out of charge time period: self-use mode.  Note: The charging power is defined as the power of the inverter to charge the battery, and the discharge power is defined as the power of the inverter output.

  • Page 35: Backup Mode/Disaster Recovery Mode

    Isuna 8000-12000SO 7.3.3 Backup mode/disaster recovery mode Function： According to the user's needs, the battery can be set up for power reserve. User’s can charge the battery fully in advance for use by the load in case of a power outage. Battery charging power in this mode is 5kw by default.

  • Page 36: Pv Priority Charging Mode

    Isuna 8000-12000SO 7.3.4 PV priority charging mode Function： The PV energy charges the battery priority according to the user's needs. Specific working mode：  When PV is sufficient, PV supplies power to loads and battery. When the PV is insufficient, the PV supplies power to the battery and the grid supplies ...

  • Page 37: Operating Mode

    Isuna 8000-12000SO 7.4 Operating mode Table 7-1 Explanation of Inverter Operation Modes Operating Description mode Waiting phase after the inverter is powered on.  Waiting When the conditions are met, enter the self check state.  If there is a malfunction, the inverter enters a fault state. ...

  • Page 38: System Testing Introduction

    Isuna 8000-12000SO enabled after switching off the grid, the system will enter the grid connection state. When the power grid is cut off or the grid conditions do  not meet the grid connection requirements, the inverter switches to an off grid state and continues to supply power to the load.
  • Page 39 Isuna 8000-12000SO Power grid phase A Load phase A voltage voltage Load A looks at each other Reservation in power Battery 1 Running status Model input frequency class Reservation Device address Table 8-2 Parameter setting table Parameter Parameter name Option setting Description number Maximum charging...

  • Page 40: Description Of Display And Control System

    Isuna 8000-12000SO 8.2 Description of display and control system LCD display control system includes LCD display, keys and indicators, schematic diagram and physical diagram as shown in the following figure. Operating instructions 8.3.1 System Parameters There are 10 system parameters： Step 1: Press the up or down key.
  • Page 41 Isuna 8000-12000SO Battery temperature ---- load power display diagram PV voltage 1---- photovoltaic power 1 PV voltage 2---- photovoltaic power 2...
  • Page 42 Isuna 8000-12000SO Grid A phase active power - load voltage frequency display diagram Grid Voltage Frequency - Load A Phase Current RMS Display Diagrams Grid Phase A Voltage - Load Phase A Voltage Display Diagram...

  • Page 43: Set System Parameters

    Isuna 8000-12000SO Reserve - Load A Phase Apparent Power Display Diagrams Battery 1 Running status -- Model input frequency level display diagram Reserve - Device Address Display Diagrams 8.3.1 Set system parameters Step 1: Press the SET to enter the setting item, and the setting icon appears in the middle.
  • Page 44 Isuna 8000-12000SO Step 2: Press the UP or DOWN and select the parameter to be set. Step 3: Press ENT to confirm the change, and the left screen flashes. Step 4: Press UP or DOWN to change the parameter and press ENT again to save the changed parameter.
  • Page 45 Isuna 8000-12000SO Maximum discharge current setting display diagram Maximum Discharge Current Setting Successful Display Diagram Battery type Settings display diagram Battery Type Setting Successful Display Diagram...
  • Page 46 Isuna 8000-12000SO Lead battery float voltage setting display diagram Lead battery float voltage setting successful diagram Lead battery average charging voltage setting display diagram...
  • Page 47 Isuna 8000-12000SO Lead battery average charging voltage setting success diagram Lead battery average charging enable setting display diagram Lead battery average charging enable setting success display diagram...
  • Page 48 Isuna 8000-12000SO Battery 1 Capacity Setting Display Diagram Battery 1 Capacity Setting Successful Display Lead battery discharge under voltage setting display diagram Lead battery discharge under voltage setting success display diagram...

  • Page 49: Led Indicator Status

    Isuna 8000-12000SO Note: After the system is successfully set, press the leftmost button to exit the setting screen. In this case, the screen icon is the same as that on the setting screen. 8.4 LED indicator status Note：Input and output relative to product. Table 8-3 Indicator status list Indicator light State...
  • Page 50 Isuna 8000-12000SO Table 8-4 Alarm classification table Alarm/fault name Type Note Grid voltage abnormal Recoverable fault Network frequency anomaly Recoverable fault Power grid voltage reverse Recoverable fault sequence The grid voltage is out of Recoverable fault phase Output voltage anomaly Recoverable fault Output frequency anomaly Recoverable fault...
  • Page 51 Isuna 8000-12000SO Battery 2 Discharge terminates Recoverable fault Battery 2 is reversed Recoverable fault PV 1 is not connected Recoverable fault PV 1 Overvoltage Recoverable fault PV 1 current equalization Recoverable fault anomaly PV 2 is not connected Recoverable fault PV 2 Overvoltage Recoverable fault PV 2 uniform flow anomaly...
  • Page 52 Isuna 8000-12000SO times out Battery 1 is overloaded and Unrecoverable Several locks times out fault Battery 2 is overloaded and Unrecoverable Several locks times out fault The soft startup of the inverter Recoverable fault fails. Procedure Battery 1 Soft startup failed. Recoverable fault Procedure The soft startup of battery 2...
  • Page 53 Isuna 8000-12000SO PV 3 Soft start fails Recoverable fault PV 4 Soft start fails Recoverable fault Balance circuit overload and Recoverable fault timeout PV1 overload timeout Recoverable fault PV 2 overload timeout Recoverable fault PV 3 overload timeout Recoverable fault PV 4 overload timeout Recoverable fault PCB overtemperature...
  • Page 54 Isuna 8000-12000SO charge Lithium battery 1 Do not Recoverable fault discharge Lithium battery 2 Do not Recoverable fault charge Lithium battery 2 Do not Recoverable fault discharge Lithium battery 1 full Recoverable fault Lithium battery 1 Discharge Recoverable fault termination Lithium battery 2 is full Recoverable fault Lithium battery 2 Discharge...
  • Page 55 Isuna 8000-12000SO modules conflict Reserved 4 Reserved 5 Inverter seal pulse Recoverable fault...

  • Page 56: Troubleshooting And Maintenance

    Isuna 8000-12000SO Troubleshooting and Maintenance This section will help users identify the possible causes of malfunction issues. Alarm and solution Error Solution Please ensure that the inverter is installed in a  High ambient temperature place without direct sunlight. Make sure the inverter is installed in a ...
  • Page 57 Isuna 8000-12000SO 请检查光伏 1 是否连接正确或者电压是否异常，确  PV1 not connected 认无误后，告警自动清除或者发送故障清除命令。 Please check whether the connection of PV1 is  PV1 over-voltage correct or whether the voltage is abnormal. Once confirmed it is correct, the alarm will be automatically cleared or a fault clearing command PV1 current sharing will be sent.
  • Page 58 Isuna 8000-12000SO correct or whether the voltage is abnormal. Once confirmed it is correct, the alarm will be automatically cleared or a fault clearing command will be sent. Check whether the PV series voltage is higher  than the maximum input voltage of the inverter. If PV4 over-voltage yes, adjust the number of PV modules in and reduce the PV string voltage to fit the input...
  • Page 59 Isuna 8000-12000SO failure communication is normal. This alarm will be automatically cleared after  Inverter abnormal other faults are cleared. PV1 soft start failure Inverter internal failure, turn off the inverter, wait PV2 soft start failure  for 5 minutes and then turn on the inverter, send PV3 soft start failure the fault clear command for soft start PV4 soft start failure...

  • Page 60: Regular Maintenance

    Isuna 8000-12000SO 9.2 Regular maintenance Make sure that the inverter is disconnected from power.  Wear personal protective equipment when operating the inverter.  Maintain Maintenance Maintenance methods content Cycle System Check for foreign objects and dust on the heat sink and Once/Half a cleaning air inlet/outlet.

  • Page 61: Technical Parameter

    Isuna 8000-12000SO Technical Parameter Model Isuna 8000SO Isuna 10000SO Isuna 12000SO Battery parameters Battery input number Battery type Lithium/lead-acid Rated battery voltage Battery voltage range 42V-58V Max voltage Rated charging and 10kW 12kW discharging power Max charging and 200A discharging current...
  • Page 62 Isuna 8000-12000SO Rated input voltage 360V MPPT number MPPT string MPPT Max input current 18A/18A MPPT max short circuit 22A/22A current Grid Input parameter Max input current 100A Rated grid voltage 220Vac grid voltage range 176-264V Rated grid frequency 50/60Hz THDi <3% Off grid parameter...
  • Page 63 Isuna 8000-12000SO efficiency European efficiency 97.2% 97.3% 97.3% Maximum efficiency 97.4% 97.5% 97.5% Maximum battery charging/discharging efficiency Protection Insulation impedance Integration testing Residual current monitoring Integration Input reverse protection Integration Anti islanding protection Integration Overvoltage and overload Integration protection AC short circuit protection Integration General Parameters Installation method...
  • Page 64 Isuna 8000-12000SO Standby power loss ≤10W Temperature range -25℃~+60℃ Humidity range <95% Allowable altitude <4000m Cooling method Air cooling IP Grade IP20 Monitoring LCD /LED/APP/WIFI/Bluetooth Communication port RS485/CAN Performance and Certification Warranty 5 years CE-LVD EN 62109-2:2011 EN 62109-1:2010 CE-EMC EN61000-6-1, EN61000-6-2...

This manual is also suitable for:

Isuna 10000soIsuna 12000so

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