1. Introduction
This user manual provides essential information for the safe and efficient operation of your Tewaycell All-in-One Solar Power System. This system integrates a 51.2V 628Ah LiFePO4 battery with a 12kW three-phase inverter, offering a robust 32KWH energy storage solution for home energy needs. Please read this manual thoroughly before installation and use to ensure optimal performance and longevity of your system.
2. Safety Information
Always observe the following safety precautions to prevent injury and damage to the equipment:
- Installation must be performed by qualified personnel in accordance with local electrical codes and regulations.
- Do not attempt to open or disassemble the battery or inverter unit. There are no user-serviceable parts inside.
- Ensure proper grounding of the system.
- Keep the system away from water, moisture, and flammable materials.
- Do not expose the system to direct sunlight or extreme temperatures.
- Wear appropriate personal protective equipment (PPE) during installation and maintenance.
- In case of fire, use a Class D fire extinguisher for lithium-ion batteries. Do not use water.
3. Product Overview
3.1 Key Features
- All-in-One design for simplified installation.
- High-capacity 51.2V 628Ah LiFePO4 battery (32KWH).
- Integrated 12kW Three-Phase Inverter.
- Supports 2 output modes of 220V or 380V.
- Max 300A BMS, 15360W output power.
- Discharge Depth of Discharge (DOD) 80%.
- Multiple communication ports: CAN, RS-232, RS485.
- Designed for Home Energy Storage System (HOME ESS) applications.
3.2 Components
The system primarily consists of the integrated inverter and battery unit. Key interfaces are located on the unit's panels.
3.3 Physical Dimensions
4. Specifications
4.1 Battery Technical Specifications
| Parameter | AO-MB51600-AC380V-12KW-EU | AO-MB51400-380VAC-12KW-EU | AO-MB51300-380VAC-12KW-EU |
|---|---|---|---|
| Number of batteries | 1 | 1 | 1 |
| Battery Energy | 30.72kWh | 20.48kWh | 15.36kWh |
| Battery Capacity | 600Ah | 400Ah | 300Ah |
| Weight | 238Kg | 215Kg | 173Kg |
| Dimension Lx Dx H (mm) | 750*500*850mm | 660*500*850mm | 660*470*704mm |
| Battery Type | LiFePO4 | ||
| Battery Rated Voltage | 51.2V | ||
| Battery Working Voltage Range | 44.8 ~ 57.6V | ||
| Maximum Charging Current | 300A | ||
| Maximum Discharging Current | 300A | ||
| DOD | 80% | ||
| Designed Life-span | >6000 Cycles @ 0.2C/25℃ Charging/Discharging at 80% DOD, Until 80% Capacity. | ||
4.2 Inverter Technical Specifications
| Parameter | Value |
|---|---|
| Inverter model | SP1-12K-H3P |
| PV CHARGE | |
| Solar Charge Type | MPPT*2 |
| Maximum Input Power | 9000W/9000W |
| PV Charging Current Range | 22A+22A |
| MPPT Voltage Range | 800Vdc/800Vdc |
| PV Voltage Range | 200-650Vdc |
| AC CHARGE | |
| Frequency Range | 50/60Hz |
| Input Voltage Range | phase voltage 170~280V, line voltage 305~485V |
| Bypass Overload Current | 35A |
| AC OUTPUT | |
| Rated Output Power | 12000W |
| Max. Peak Power | 24000W |
| Rated Output Voltage | 230/400Vac (Three-phase) |
| Load Capacity of Motors | 6HP |
| Rated AC Frequency | 50/60Hz |
| Waveform | Pure Sine Wave |
| Switch Time | 10ms Typical |
| BATTERY INVERTER OUTPUT | |
| Rated Output Power | 12000W |
| Maximum Peak Power | 24000W |
| Power Factor | 1 |
| Rated Output Voltage (Vac) | 230/400Vac (three-phase) |
| Frequency | 50Hz ± 0.3Hz/60Hz ± 0.3Hz |
| Auto Switch Period | <20ms |
| THD | <3% |
| GENERAL DATA | |
| Protection Degree | IP20, Indoor Only |
| Operating Temperature Range | -15~55℃, >45℃ Derated |
| Noise | <60dB |
| Cooling Method | Internal Fan |
| COMMUNICATION | |
| Embedded Interfaces | RS485 / CAN / USB / Dry contact |
| External Modules (Optional) | Wi-Fi / GPRS |
5. Setup & Installation
Before beginning installation, ensure all components are present and undamaged. Refer to the safety information section before proceeding.
5.1 Solar Panel Connection
Connect your solar panels to the PV input ports on the inverter. Ensure correct polarity (PV1+, PV2+). The system supports two MPPT inputs.
The video below demonstrates the cleaning and connection of solar panels to the system.
5.2 Battery Installation and Connection
The system includes an integrated LiFePO4 battery. Ensure the battery switch (BAT SWITCH) is in the OFF position before making any connections. Connect the battery cables to the designated battery port on the inverter, observing correct polarity (red for positive, black for negative).
5.3 Inverter Connections
Connect the AC input from your utility grid and AC output to your home's electrical panel. Ensure all connections are secure. The system provides three-phase output.
Users can change the output phase mode and output voltage via the setup menu (refer to chapter 6.1.2 Setting in the full manual). The output voltage corresponds to item [38] of the parameter setting, and the output phase voltage can be set within the range of 200V to 240V.
5.4 Communication Ports
The system features various communication ports for monitoring and control:
- Inverter Communication Interface: RS485-1 port, USB-B port, CAN/RS485-2 port, Parallel connection port, Dry contact port.
- Battery Communication Interface: LED Indicators (ON/OFF, RUN, ALM, SOC), RST, ADS, DCT, RS485/CAN (connect to Inverter), RS232 (connect to computer), RS485/RS485 (Parallel connection).
6. Operating Instructions
6.1 System Startup and Monitoring
After all connections are securely made, switch on the BAT SWITCH. Then, power on the inverter using the ON/OFF button on the control panel. The display will show system status, including AC output voltage and frequency.
6.2 Time-Slot Utility Charging/Carrying Function
This function allows you to optimize energy usage based on peak and valley electricity tariffs. Before using, set the local time in parameter items 54 and 55. You can then define up to 3 periods (00:00 to 23:59) for mains charging/carrying. During these periods, if PV energy is available, it will be used first; otherwise, utility energy will supplement.
6.3 Time-Slot Battery Discharging Function
Similar to charging, you can define up to 3 periods (00:00 to 23:59) for battery discharge. During these times, the inverter prioritizes battery power for the load. If battery power is insufficient, the inverter automatically switches to mains power to maintain stable load operation.
7. Maintenance
- Solar Panel Cleaning: Regularly clean solar panels to ensure maximum efficiency. Use a soft cloth and water to remove dust and debris.
- System Inspection: Periodically check all cables and connections for wear, damage, or loose fittings.
- Ventilation: Ensure the inverter's ventilation openings are clear and unobstructed to prevent overheating. The system uses an internal fan for cooling.
- Software Updates: Check for any available firmware updates for the inverter to ensure optimal performance and new features.
8. Troubleshooting
If you encounter issues with your Tewaycell Solar Power System, refer to the following common troubleshooting steps:
- No Power Output:
- Check if the BAT SWITCH is ON.
- Verify that the inverter is powered on.
- Inspect all battery and AC output connections.
- Check the system display for error codes or warnings.
- Low Power Output:
- Ensure solar panels are clean and free from obstructions.
- Check PV input voltage and current on the display.
- Verify battery State of Charge (SOC).
- System Overheating:
- Ensure adequate ventilation around the unit.
- Clear any obstructions from the fan vents.
- Reduce the load if the ambient temperature is high.
For persistent issues, please contact customer support.
9. User Tips
- Utilize the time-slot charging/discharging functions to take advantage of off-peak electricity rates and maximize self-consumption of solar energy.
- Regularly monitor the system's performance through its display or connected communication interfaces to ensure efficient operation.
- Keep a record of your system's performance and any maintenance activities for future reference.
10. Warranty & Support
The Tewaycell Solar Power System comes with a warranty period of 5~10 Years, as specified at the time of purchase. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or service inquiries, please refer to your purchase documentation for specific contact details. Ensure you have your model number and purchase date available when contacting support.
