Introduction
The EASUN POWER 6.2KW Hybrid Solar Inverter is a multi-function inverter/charger designed to provide uninterruptible power support. It integrates the functions of an inverter, an MPPT solar charger, and a battery charger into a compact unit. The comprehensive LCD display allows for user-configurable and easily accessible button operation, enabling adjustments for battery charging current, AC/solar charger priority, and acceptable input voltage based on specific application requirements.
Key Features:
- Pure sine wave output.
- Capable of running without a battery.
- Built-in MPPT solar charge controller.
- Configurable input voltage range for home appliances and personal computers via LCD setting.
- Configurable battery charging current based on applications via LCD setting.
- Configurable AC/Solar Charger priority via LCD setting.
- Compatible with mains voltage or generator power.
- Automatic restart upon AC recovery.
- Overload, over temperature, and short circuit protection.
- Smart battery charger design for optimized battery performance.
- Cold start function.
- Built-in parallel board, supporting parallel operation for up to 12 units.
- Integrated Battery Management System (BMS) function.
Setup and Installation
Proper installation is crucial for the safe and efficient operation of your hybrid solar inverter. Please follow these instructions carefully.
Mounting the Unit:
Consider the following points before selecting where to install the inverter:
- Do not mount the inverter on flammable construction materials.
- Mount on a solid surface.
- Install this inverter at eye level to allow the LCD display to be read at all times.
- The ambient temperature should be between 0°C and 55°C to ensure optimal operation.
- The recommended installation position is to be adhered to the wall vertically.
- Be sure to keep other objects and surfaces as shown in the right diagram to guarantee sufficient heat dissipation and to have enough space for removing wires.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.
Inverter mounting instructions and a diagram showing parallel connection for multiple units.
Wiring Connections:
Refer to the following steps and diagrams for connecting your inverter. Always ensure the inverter is switched off before making any connections.
Video demonstrating the wiring and WiFi connection process for the SMG II 6.2KW inverter.
- **Connect Battery Terminals:** Connect the positive (red) and negative (black) battery cables to the BAT+ and BAT- terminals on the inverter.
- **Connect AC Input:** Connect the ground wire (yellow/green), neutral (blue), and live (brown) wires to the AC IN L, N, and ground terminals respectively.
- **Connect AC Output:** Connect the neutral (blue) and live (red) wires to the AC OUT L and N terminals respectively.
- **Connect PV Input:** Connect the positive (red) and negative (blue) PV input cables to the PV IN + and - terminals respectively.
- **Install WiFi Module:** Plug the WiFi module into the RS232 port. No additional cables are needed for the WiFi module itself.
- **Connect Communication Interface:** Connect the communication cable (e.g., Ethernet cable) between the battery and the inverter to the RS485A CAN port.
- **Power On:** Turn on the battery switch, then turn on the inverter switch (ON/OFF switch on the side) to display normal parameters on the LCD.
Detailed view of the rear panel with labeled ports: 1:AC input, 2:AC output, 3:RS232 communication port, 4:PV input, 5:RS485 communication port, 6:Battery input, 7:Grounding, 8:Parallel communication port (only for parallel model), 9:Power on/off switch.
Illustration of how to plug the WiFi module into the RS232 port.
System Overview:
The hybrid solar inverter can operate in various configurations, integrating solar power, a generator, or utility grid power with battery storage to supply power to your loads.
General system diagram illustrating the flow of power from various sources through the inverter to the load, with monitoring options.
Diagrams showing system operation with a battery connected and without a battery connected, highlighting power flow paths.
PV Connection Guidelines:
When selecting proper PV modules, please ensure the following parameters are considered:
- Open circuit voltage (Voc) of PV modules does not exceed the maximum PV array open circuit voltage of the inverter (500VDC).
- Open circuit voltage (Voc) of PV modules should be higher than the minimum battery voltage.
PV connection diagram showing solar panels connected to the inverter, along with a table of PV module selection parameters.
Battery Connection:
The 6.2KW model supports a 48VDC battery system. Ensure batteries are connected in series to achieve the required 48VDC.
Diagram illustrating the series connection of four 12V batteries to form a 48VDC battery bank for the inverter.
Operation
Once the inverter is properly installed and wired, you can begin operation. The inverter features an LCD display, LED indicators, and function keys for monitoring and configuration.
Front view of the inverter highlighting the LCD display, function keys, and LED indicators.
LCD Display Information:
The LCD provides detailed information about the inverter's status and parameters. Here's a breakdown of the icons and their descriptions:
| Icon | Function Description |
|---|---|
| AC | Indicates the AC input. |
| PV | Indicates the PV input. |
| INPUTBATT | Indicates input voltage, input frequency, PV voltage, battery voltage, and charger current. |
| Configuration Program | Indicates the setting programs. |
| Fault Information | Indicates the warning and fault codes. |
| Warning | Flashing with warning code. |
| Fault | Lighting with fault code. |
| OUTPUTBATTLOAD | Indicates output voltage, output frequency, load percent, load in VA, load in Watt, and discharging current. |
| Battery Information | Indicates battery level by 0-24%, 25-49%, 50-74%, and 75-100% in battery mode and charging status in line mode. |
| Mode Operation Information | |
| Mains Icon | Indicates unit connects to the mains. |
| PV Panel Icon | Indicates unit connects to the PV panel. |
| Bypass Icon | Indicates load is supplied by utility power. |
| Utility Charger Icon | Indicates the utility charger circuit is working. |
| DC/AC Inverter Icon | Indicates the DC/AC inverter circuit is working. |
LED Indicators:
The inverter features LED indicators to quickly convey its operational status:
| LED Indicator | Color | Messages |
|---|---|---|
| AC / INV | Green | Solid On: Output is powered by utility in Line mode. Flashing: Output is powered by battery or PV in battery mode. |
| CHG | Green | Solid On: Battery is fully charged. Flashing: Battery is charging. |
| FAULT | Red | Solid On: Fault occurs in the inverter. Flashing: Warning condition occurs in the inverter. |
Function Keys:
The function keys below the LCD display allow for navigation and configuration:
| Function Key | Description |
|---|---|
| ESC | To exit setting mode. |
| UP | To go to previous selection. |
| DOWN | To go to next selection. |
| ENTER | To confirm the selection in setting mode or enter setting mode. |
Specifications
| Category | Parameter | Value |
|---|---|---|
| General | Model | ISolar SMG II 6.2KP WiFi |
| Capacity | 6.2KVA/6.2KW | |
| Parallel Capability | YES, up to 12 Units | |
| Input | Nominal Voltage | 230VAC |
| Acceptable Voltage Range | 170-280VAC (for Personal Computer); 90-280Vac (for Home Appliances) | |
| Frequency | 50/60 Hz (Auto sensing) | |
| Output | Nominal Voltage | 220/230/240VAC±5% |
| Surge Power | 12400VA | |
| Frequency | 50/60Hz | |
| Waveform | Pure Sine wave | |
| Peak Efficiency (PV to INV) | 96% | |
| Peak Efficiency (Battery to INV) | 93% | |
| Crest Factor | 3:1 | |
| Battery | Battery Voltage | 48VDC |
| Floating Charge Voltage | 54VDC | |
| Overcharge Protection | 63VDC | |
| Charging Method | CC / CV | |
| Solar & AC Charger | Max. PV Array Power | 6500W |
| Max. PV Array Open Circuit Voltage | 500VDC | |
| PV Array MPPT Voltage Range | 60VDC~450VDC | |
| Max. Solar Input Current | 27A | |
| Max. Solar Charge Current | 120A | |
| Max. AC Charge Current | 100A | |
| Max. Charge Current (Total) | 120A | |
| Physical & Other | Dimensions (D x W x H) | 450 x 300 x 130 mm |
| Net Weight | 12 KG | |
| Communication Interface | RS232 / RS485 | |
| Certifications | CE, RoHS, WEEE |
Maintenance
To ensure the longevity and optimal performance of your EASUN POWER Hybrid Solar Inverter, regular maintenance is recommended:
- **Cleaning:** Periodically clean the exterior of the inverter with a dry cloth. Ensure ventilation openings are free from dust and debris to prevent overheating.
- **Connections:** Annually check all electrical connections (battery, AC input/output, PV input) for tightness and signs of corrosion. Loose connections can lead to power loss or overheating.
- **Environment:** Ensure the installation environment remains within the specified temperature and humidity ranges. Avoid exposing the inverter to direct sunlight, rain, or excessive dust.
- **Battery Health:** If using batteries, monitor their health and charge levels regularly. Follow the battery manufacturer's maintenance guidelines.
Troubleshooting
If you encounter issues with your inverter, refer to the LCD display and LED indicators for diagnostic information. Common issues and basic troubleshooting steps are outlined below:
- **No Power/Display Off:** Check the main power switch and battery connections. Ensure the battery is charged.
- **Fault LED Solid Red:** A fault has occurred. Check the LCD for a specific fault code and refer to the inverter's detailed fault code list (if available in a separate document) for resolution.
- **Fault LED Flashing Red:** A warning condition exists. Check the LCD for a specific warning code. This might indicate a non-critical issue that needs attention, such as high temperature or low battery.
- **No AC Output:** Verify AC input is present and within acceptable voltage range. Check for overload conditions.
- **No PV Charging:** Ensure solar panels are connected correctly and receiving sufficient sunlight. Check PV input voltage and current on the LCD.
- **WiFi Connection Issues:** Ensure the WiFi module is correctly installed in the RS232 port. Check network settings and router connectivity.
For persistent issues or complex problems, contact qualified technical support.
User Tips
- **Optimal Performance:** For best results, ensure your solar panel array voltage falls within the MPPT voltage range (60VDC~450VDC) to maximize solar energy harvesting.
- **Load Management:** Monitor your power consumption via the LCD display to avoid overloading the inverter, especially when running multiple appliances.
- **Parallel Operation:** If utilizing the parallel function, ensure all inverters are configured correctly and connected according to the parallel wiring diagram for stable and synchronized operation.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official EASUN POWER website or contact your authorized dealer. Keep your purchase receipt and product serial number handy for any support requests.
