1. Introduction
This manual provides comprehensive instructions for the assembly, installation, operation, and troubleshooting of the DATOUBOSS MPS-VMAX Hybrid Solar Inverter. Please read this manual carefully before installation and operation, and keep it for future reference.
1.1 Purpose and Scope
This inverter/charger unit combines the functions of an inverter, solar charger, and battery charger to provide uninterruptible power support. It features a portable design with a comprehensive LCD display for user-configurable settings such as battery charging current, AC/solar charger priority, and acceptable input voltage ranges for various applications.
1.2 Key Features
- Pure sine wave output.
- Configurable input voltage range for home appliances and personal computers via LCD settings.
- Adjustable battery charging current based on application via LCD settings.
- Configurable AC/Solar Charger priority via LCD settings.
- Compatible with mains voltage or generator power.
- Automatic restart upon AC recovery.
- Integrated overload, over-temperature, and short-circuit protection.
- Smart battery charger design for optimized battery performance.
- Cold start function.
1.3 Basic System Architecture
The inverter/charger can be integrated into a system comprising a generator or utility power source, PV modules, and battery packs to power various home appliances. Consult with your system integrator for specific architectural requirements.
2. Specifications
The DATOUBOSS MPS-VMAX Hybrid Solar Inverter is available in 10.2KW and 11KW models, offering robust performance for various solar power applications. Key specifications are detailed below:
| Feature | Specification (10.2KW Model) | Specification (11KW Model) |
|---|---|---|
| Brand Name | DATOUBOSS | |
| Output Type | SINGLE | |
| Origin | Mainland China | |
| Certification | CE, FCC, UL | |
| Nominal Output Voltage | 220/230/240Vac | |
| Full Load Output Power | 10200W | 11000W |
| PV Array MPPT Voltage Range | 90Vdc-450Vdc | |
| Max PV Input Power | 5400W+5400W | 5500W+5500W |
| Max Solar Charging Current | 160A | 150A |
| Maximum AC Charging Current | 140A | |
| Battery Voltage | 48Vdc | |
| Operating Temperature Range | -10°C to 50°C | |
| Dimensions (10.2KW) | 47cm (L) x 55cm (W) x 14.5cm (H) | N/A |
| Dimensions (11KW) | N/A | 53.3cm (L) x 38.2cm (W) x 13cm (H) |
3. Setup and Installation
3.1 Unpacking and Inspection
Before installation, carefully inspect the unit for any damage that may have occurred during transit. The package should contain the inverter unit and a user manual. If any items are missing or damaged, contact your supplier.
3.2 Mounting the Unit
Select a suitable location for mounting the inverter, keeping the following in mind:
- Do not mount the inverter on flammable construction materials.
- Mount on a solid surface, preferably concrete or other non-combustible material.
- Install the inverter at eye level for easy reading of the LCD display.
- Ensure proper air circulation: allow approximately 20 cm clearance to the sides and 50 cm above and below the unit for heat dissipation.
- The ambient temperature should be between -10°C and 50°C for optimal operation.
- The recommended installation position is vertically on a wall.
To mount, use the provided expansion bolts (M6*80mm for points 1, 2 and M4 or M5 for point 3) to secure the unit to the wall.
3.3 Battery Connection
WARNING: All wiring must be performed by qualified personnel. It is crucial for system safety and efficient operation to use appropriate cables for battery connection. Incorrect wiring can lead to electric shock or fire.
CAUTION: To reduce the risk of injury, charge only deep-cycle lead-acid type rechargeable batteries. Other battery types may burst.
Install a separate DC over-current protector or disconnect device between the battery and inverter. Refer to the table below for recommended cable and terminal sizes.
| Model | Typical Amperage | Battery Capacity | Wire Size | Ring Terminal (D/L mm) | Torque Value |
|---|---|---|---|---|---|
| 8KVA | 183.2A | 250AH | 1*2/0AWG | 8.4/51 | 5Nm |
| 11KVA | 228A | 250AH | 1*3/0AWG | 8.4/54 | 5Nm |
WARNING: Shock Hazard. Installation must be performed with care due to high battery voltage in series.
CAUTION: Before making the final DC connection or closing the DC breaker/disconnector, ensure positive (+) is connected to positive (+) and negative (-) to negative (-).
Steps for battery connection:
- Assemble battery ring terminals based on recommended cable and terminal sizes.
- Insert the battery wires flatly into the inverter's battery connectors and ensure bolts are tightened with a torque of 2 Nm (clockwise). Verify correct polarity at both the battery and inverter.
3.4 AC Input/Output Connection
WARNING: All wiring must be performed by qualified personnel. It is very important to use appropriate cables for AC input connection to reduce risk of injury.
CAUTION: Before connecting to the AC input power source, install a separate AC breaker between the inverter and the AC input source. This protects the inverter from overcurrent and allows disconnection for maintenance.
The recommended AC breaker specification is 32A for 3KW models and 50A for 5KW models. There are separate terminal blocks for "IN" and "OUT" connections; do not misconnect them.
| Model | AWG No. | Torque Value |
|---|---|---|
| 8KW | 8AWG | 1.4~1.6Nm |
| 11KW | 8AWG | 1.4~1.6Nm |
Steps for AC input/output connection:
- Before making AC input/output connections, ensure the DC protector or disconnector is open.
- Remove 10mm of insulation from the six conductors. Shorten phase L and neutral conductor N by 3mm.
- Insert AC input wires according to the polarities indicated on the terminal block and tighten the terminal screws. Ensure the PE protective conductor (ground) is connected first.
- Ensure all wires are securely connected.
WARNING: Be sure that AC power source is disconnected before attempting to hardwire it to the unit.
CAUTION: Appliances like air conditioners require a 2-3 minute restart delay. If a power shortage occurs and recovers quickly, it can damage connected appliances. Consider appliances with built-in time-delay functions to prevent damage.
3.5 PV Connection (for models with solar charger)
CAUTION: Before connecting to PV modules, install a separate DC circuit breaker between the inverter and PV modules.
WARNING: All wiring must be performed by qualified personnel. Use appropriate cables for PV module connection.
| Typical Amperage | Gauge | Torque Value |
|---|---|---|
| 30A | 12AWG | 1.4~1.6Nm |
PV module selection considerations:
- The open circuit voltage (Voc) of the PV modules must not exceed the maximum PV array open circuit voltage of the inverter.
- The maximum supply voltage of the PV modules should be close to the optimal PV access voltage range for best performance.
- If a single PV module cannot meet the requirement, connect multiple PV modules in series.
Steps for PV module connection:
- Remove 10mm of insulation from positive and negative conductors.
- Attach bootlace ferrules to the ends of positive and negative wires using a proper crimping tool.
- Fix the wire cover to the inverter with supplied screws.
- Check correct polarity from PV modules and PV input connectors. Connect positive (+) to positive (+) and negative (-) to negative (-). Tighten screws.
3.6 Final Assembly
After connecting all wirings, replace the bottom cover by screwing the two screws back in place.
3.7 Communication Connection
The inverter supports communication via PC and Wi-Fi/GPRS modules for monitoring.
- PC Connection: Use the supplied communication cable to connect the inverter to a PC. Install monitoring software from the bundled CD and follow on-screen instructions.
- Wi-Fi Cloud Communication (Optional): Connect the inverter to a Wi-Fi module using the supplied communication cable. Download and install the APP from the APP store. Refer to the "Wi-Fi Plug Quick Installation Guideline" for network setup and registration. The inverter status can be monitored via the mobile APP or webpage.
- GPRS Cloud Communication (Optional): Connect the inverter to a GPRS module using the supplied communication cable. Apply external power to the GPRS module. Download and install the APP from the APP store. Refer to the "GPRS RTU Quick Installation Guideline" for network setup and registration. The inverter status can be monitored via the mobile APP or webpage.
4. Operation
4.1 Power ON/OFF
Once the unit is properly installed and batteries are connected, press the On/Off switch (located on the button of the case) to turn on the unit.
Steps to Start Up:
- Battery Boot: Connect to the battery. Press the power-on button to establish a working power source. The system will automatically turn on, and after a period, the panel will display "battery mode".
- Mains Power On: Connect to normal AC power. Press the switch. The system will automatically turn on. If AC output power priority is set, after a period, the panel will display "AC mode".
Shutdown Steps:
- When the system is in battery mode or AC mode output, press the On/Off switch again to turn off the system.
4.2 Operation and Display Panel
The front panel of the inverter features an LCD display, three LED indicators, and four function keys for monitoring and control.
| LED Indicator | Color | Status | Message |
|---|---|---|---|
| AC/INV | Green | Solid On | Output powered by utility (Line mode) |
| Flashing | Output powered by battery or PV (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 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 |
4.3 LCD Setting
Press and hold the ENTER button for 3 seconds to enter setting mode. Use UP/DOWN buttons to select programs and ENTER to confirm or ESC to exit.
The LCD display provides various information and allows configuration of operational parameters. Key settings include:
- Output Source Priority: Configure whether solar energy, utility, or a hybrid combination takes priority for powering loads and charging batteries.
- Maximum Charging Current: Set the total charging current for solar and utility chargers.
- AC Input Voltage Range: Define the acceptable AC input voltage range (e.g., for appliances or UPS mode).
- Battery Type: Select AGM, Flooded, or User-Defined battery types.
- Battery Equalization: Enable or disable battery equalization, set equalization voltage, time, and interval.
- Other Settings: Includes time setting, GRID-tie current, dual output settings, and various protection thresholds.
4.4 Parallel Operation
The inverter supports parallel operation in both single-phase and three-phase configurations, allowing for increased output power and system flexibility. Up to 9 units can be operated in parallel.
WARNING: Do not connect the current sharing cable between inverters that are in different phases, as this may damage the units.
Parallel Board Installation:
- Remove the wire cover by unscrewing all screws.
- Remove the communication board by unscrewing two screws and disconnecting 2-pin and 14-pin cables.
- Remove two screws to take out the cover of parallel communication.
- Install the new parallel board with two screws.
- Reconnect the 2-pin and 14-pin cables to their original positions.
Parallel Connection Diagrams:
For detailed wiring instructions for various parallel configurations (e.g., one inverter per phase, two inverters in two phases, three inverters in one phase), refer to the "Appendix I: Parallel function" section in the full user manual (PDF).
5. Maintenance
To ensure optimal performance and longevity of your DATOUBOSS Hybrid Solar Inverter, regular maintenance is recommended:
- Cleaning: Periodically clean the exterior of the inverter to prevent dust buildup. Ensure ventilation openings are clear and unobstructed.
- Ventilation: Always ensure adequate air circulation around the unit as specified in the mounting instructions to prevent overheating.
- Wiring Inspection: Regularly check all wiring connections (battery, AC input/output, PV) for tightness and signs of wear or corrosion.
- Battery Health: Monitor battery voltage and performance. Ensure battery equalization is performed periodically if using compatible battery types.
- Professional Service: If any errors persist after troubleshooting or if internal service is required, contact qualified service personnel or your local dealer. Do not attempt to disassemble the unit yourself.
6. Troubleshooting
This section provides guidance for common issues and their solutions. The inverter's LCD display will show fault codes and warning messages to help diagnose problems.
6.1 Fault Codes and Solutions
When a fault occurs, the red LED will be solid on, and the LCD will display a fault code. Refer to the table below for common fault codes and their remedies.
| Problem | Fault Code | Explanation/Possible Cause | What to Do |
|---|---|---|---|
| Unit shuts down automatically during startup process | N/A | Battery voltage too low (<1.91V/Cell) | Re-charge battery; Replace battery. |
| No response after power on | N/A | Battery voltage too low (<1.4V/Cell); Internal fuse tripped. | Contact repair center for fuse replacement; Re-charge battery; Replace battery. |
| Mains exist but unit works in battery mode | N/A | Input protector tripped; Insufficient quality of AC power. | Check AC breaker/wiring; Check AC wires (too thin/long); Check generator/input voltage range setting. |
| Internal relay switched on/off repeatedly | N/A | Battery is disconnected. | Check battery wires. |
| Buzzer beeps continuously, red LED on | 07 | Overload error (105% overload, time up). | Reduce connected load. |
| 05 | Output short circuited. | Check wiring, remove abnormal load. | |
| 02, 03 | Over temperature (internal component >120°C). | Check air flow, ambient temperature. | |
| 01 | Battery over-charged / voltage too high. | Check battery specifications and quantity. | |
| 51, 52, 55, 59 | Various internal errors (e.g., over current, bus voltage too low, output voltage unbalanced, PV input voltage over limitation). | Restart unit; if error persists, return to repair center. |
6.2 Warning Descriptions
When a warning occurs, the red LED flashes, and the LCD displays an alarm code. The inverter does not enter fault mode during a warning.
| Warning Code | Warning Event | Audible Alarm |
|---|---|---|
| 01 | Fan is locked when inverter is on. | Beep three times every second. |
| 02 | Over temperature. | None. |
| 03 | Battery is over-charged. | Beep once every second. |
| 04 | Low battery. | Beep once every second. |
| 07 | Overload. | Beep once every 0.5 second. |
| 10 | Output power derating. | Beep twice every 3 seconds. |
| 15 | PV energy is low. | Beep twice every 3 seconds. |
| 16 | High AC input (>280VAC) during BUS soft start. | None. |
| EQ | Battery equalization. | None. |
| 6P | Battery is not connected. | None. |
7. User Tips
- Cable Sizing is Critical: Always use the recommended cable sizes for battery, AC, and PV connections. Undersized cables can lead to efficiency loss, overheating, and potential hazards.
- Proper Ventilation: Ensure the inverter has ample clearance (20cm sides, 50cm top/bottom) and is mounted on a non-combustible surface to prevent overheating and ensure optimal performance.
- Battery Compatibility: Use only deep-cycle lead-acid batteries or compatible lithium batteries. Ensure correct battery type settings in the LCD menu for proper charging and discharge cycles.
- Parallel Operation: When setting up multiple inverters in parallel, ensure all battery cables are of the same length and that current sharing cables are correctly connected within the same phase.
- AC Appliance Protection: Be aware of the restart delay for certain AC appliances (like air conditioners) after a power outage. Consider appliances with built-in time-delay functions to prevent damage.
- Regular Checks: Periodically inspect all connections and the inverter's display for any fault or warning codes. Early detection can prevent more serious issues.
8. Warranty and Support
The DATOUBOSS Hybrid Solar Inverter is designed for reliable operation. For any issues not resolved by the troubleshooting guide, please contact qualified service personnel.
- Professional Service: Only qualified service personnel should attempt repairs or internal maintenance. Incorrect re-assembly can lead to electric shock or fire.
- Contact Support: If errors persist after following the troubleshooting steps, please contact your local dealer or service center for maintenance and support.
- User Manual (PDF): A detailed user manual in PDF format is available for download. This document provides additional in-depth information and diagrams. View User Manual (PDF)
