1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Axpert VM IV Hybrid Solar Inverter. Please read this manual thoroughly before installation and operation to ensure optimal performance and safety.
2. Safety Information
WARNING: Installation and wiring must be performed by qualified personnel in accordance with all local electrical codes and regulations.
- Ensure the inverter is disconnected from all power sources (PV, utility, battery) before performing any maintenance or wiring.
- Do not attempt to repair the inverter yourself. Refer to qualified service personnel.
- Keep the inverter away from flammable materials, moisture, and direct sunlight.
- Ensure proper ventilation around the inverter to prevent overheating.
- Battery and cable specifications must be in strict accordance with the instructions provided. If in doubt, contact customer service.
3. Product Overview
The Axpert VM IV is a hybrid solar inverter designed for both on-grid and off-grid applications. It features a pure sine wave output, an efficient 120A MPPT solar charger, and dual output capabilities. The inverter includes multiple protection features to ensure safe and reliable operation.
3.1 Key Features
- Removable operating display panel
- Communication ports (RS485, CAN-bus, RS232) for BMS
- Wide PV input voltage range (60VDC-450VDC)
- USB On-The-Go function support
- Dual output for small loads
- Built-in Wi-Fi for mobile monitoring (Android/iOS App available)
- Built-in anti-dusk kit
- RGB light bar and colored LCD for intuitive operation
- Touchable function keys
3.2 Inverter Components
- LCD display
- RGB LED bar
- Touchable function keys
- Power on/off switch
- AC input connectors
- AC output connectors (Load connection) Two circuits Output
- Battery connectors
- PV connectors
- Circuit breaker
- Dry contact
- USB port as USB communication port and USB function port
- RS-232 communication port
- BMS communication port: CAN, RS-485 or RS-232
- Output grounding
3.3 Protection Features
The inverter is equipped with comprehensive protection mechanisms including:
- Overheat protection
- Short circuit protection
- Anti-reverse protection
- Battery protection
- Power failure protection
- Overload protection
- High and low pressure protection
- Overcurrent protection
4. Installation
Proper installation is crucial for the safe and efficient operation of your inverter. Ensure all connections are secure and correctly polarized.
4.1 Wiring Connections
The inverter supports various connection methods, including PV panels, utility grid, dynamo, and battery. The battery and cable specifications must be configured in strict accordance with the instructions. Consult customer service if you have any doubts.
The four primary connection methods are:
- PV panel + Utility grid + Battery + Load
- Battery + Load
- PV panel + Load
- Utility grid + Battery + Load
4.2 AC Output Configuration
The inverter features AC two circuits output, prioritizing power supply to the main circuit.
The diagram illustrates the connection of Master Output and Slave Output, along with AC IN and the Input Breaker. A reserved BMS communication port is available, and lithium batteries are automatically identified for high and low voltage protection points.
5. Operation
The Axpert VM IV inverter is designed for user-friendly operation with an intuitive display and touchable controls.
5.1 Display and Controls
The inverter features a colored LCD and touchable function keys for easy navigation and monitoring. A user-programmable RGB LED bar provides visual feedback for different operation modes.
The RGB LED bar can display various colors to indicate different operational states or modes.
5.2 Operating Modes
The inverter supports multiple operating priorities:
- **Utility First (Default):** Prioritizes power from the utility grid.
- **Solar First:** Prioritizes power from solar PV panels.
- **SBU Priority:** Solar-Battery-Utility priority.
5.3 Mobile Monitoring
Monitor your inverter's performance using the "Solar of Things" application. The inverter has built-in Wi-Fi for convenient mobile monitoring.
Note: The application can only monitor data and cannot change inverter parameters.
To download the "Solar of Things" app, scan the QR code below or search for it in your application market.
5.4 Supported Loads
The inverter can drive various types of loads without interference, including common household and office appliances.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter.
- Keep the inverter clean and free from dust. Use a dry cloth for cleaning.
- Ensure ventilation openings are not blocked.
- Periodically check all wiring connections for tightness and signs of corrosion.
- Monitor the inverter's display for any error codes or unusual behavior.
7. Troubleshooting
If you encounter issues with your inverter, refer to the following common problems and solutions. For complex issues or persistent errors, contact technical support.
- **Inverter not powering on:** Check the power on/off switch, AC input connections, and battery connections.
- **Error Code 09:** This may indicate an internal connection issue. Disconnect all power, open the lid, and carefully check and reconnect internal connectors as specified by the manufacturer or technical support.
- **No output power:** Verify load connections, check for overload conditions, and ensure the inverter is in an active operating mode.
- **Overheat warning:** Ensure adequate ventilation and clear any obstructions from the cooling fins.
- **Battery voltage incorrect:** Verify battery connections and ensure the battery type settings are correct in the inverter's configuration.
8. Specifications
Detailed technical specifications for the Axpert VM IV Hybrid Solar Inverter (TWIN 4K and TWIN 6K models).
| Category | Parameter | TWIN 4K | TWIN 6K |
|---|---|---|---|
| Model | 4000VA/4000W | 6000VA/6000W | |
| AC Input | Voltage | 230VAC | 230VAC |
| Voltage range | 170-280Vac (PC) / 90-280Vac (Household) | 170-280Vac (PC) / 90-280Vac (Household) | |
| Frequency | 50/60Hz (Auto sensing) | 50/60Hz (Auto sensing) | |
| Output | Output voltage range | 230VAC ±5% | 230VAC ±5% |
| Power surge | 8000VA | 12000VA | |
| Efficiency | 93% | 93% | |
| Conversion time | 10ms (Computer) / 20ms (Household) | 10ms (Computer) / 20ms (Household) | |
| Wave form | Pure sine wave | Pure sine wave | |
| Battery | Battery voltage | 24V | 48V |
| Float charging pressure | 27V | 54V | |
| Overcharge protection | 33VDC | 63VDC | |
| PV Charging & Communication | MPPT | MPPT | |
| Maximum photovoltaic array power | 5000W | 6000W | |
| MPPT working voltage range | 60-450VDC | 60-450VDC | |
| Open circuit voltage, the largest photovoltaic array | 500VDC | 500VDC | |
| The rated voltage | 320V | 360V | |
| The largest PV input current | 27A | 27A | |
| Maximum charging current communication | 120A | 120A | |
| Physical | Size (D/W/H) | 470x305x125mm | 470x305x125mm |
| Net weight (KG) | 9 | 10 | |
| Communication interface | USB/RS232/RS485/WiFi/Dry contact | USB/RS232/RS485/WiFi/Dry contact | |
| Working Environment | Relative humidity | 5% to 95% Relative humidity (no condensation) | 5% to 95% Relative humidity (no condensation) |
| Working temperature | -10°C to 50°C | -10°C to 50°C | |
| Storage temperature | -15°C to 60°C | -15°C to 60°C | |
| Standard | Safety regulation | CE | CE |
9. User Tips
- **Initial Setup Check:** If you encounter an error code (e.g., Error 09) upon initial power-on, it might be due to a loose internal connector. Disconnect all power sources and carefully check and re-secure any internal connections. If unsure, consult technical support.
- **Battery Voltage Display:** The inverter's display should accurately show battery voltage. Regularly verify this against an external tester for consistency.
- **Reliability:** With proper installation and care, the inverter is designed for reliable long-term operation.
10. Warranty and Support
10.1 Warranty
The Axpert VM IV Hybrid Solar Inverter comes with a 1-year warranty. Please retain your proof of purchase for warranty claims.
10.2 Technical Support
For technical assistance, troubleshooting, or warranty inquiries, please contact our support team:
- Email: 1962233699@qq.com
- WhatsApp: +8613807408738
11. Certifications
This product complies with the following standards:
- CE
- IEC
12. Product Video
Watch this video to see the Axpert VM IV Hybrid Solar Inverter in operation, demonstrating its display and user interface interaction.