1. Overview
Thank you for choosing the EPEVER eTracer-BND series MPPT solar charge controller. This series utilizes multiphase synchronous rectification technology (MSRT) and a common positive design, featuring a dual-core processor architecture and an advanced MPPT control algorithm. These controllers offer high response speed, reliability, and adherence to industrial standards.
The MPPT control algorithm ensures fast and accurate tracking of the maximum power point (MPP) of the PV array, maximizing solar energy harvest. MSRT technology guarantees high conversion efficiency across various charge power levels, significantly improving the overall energy efficiency of the solar system.
Equipped with a Modbus communication protocol interface (RS-485, RS-232), the controller allows for expanded applications and monitoring in diverse environments such as telecommunication base stations, household systems, and wilderness monitoring. An all-round electronic fault self-test function and enhanced electronic protection prevent damage to system components from installation errors or system failures.
2. Key Features
- Advanced Maximum Power Point Tracking (MPPT) technology with efficiency no less than 99.5%.
- High-quality components ensuring perfecting system performance, with maximum conversion efficiency of 98% and full load efficiency of 97%.
- MSRT for high conversion efficiency even at low charge power.
- Ultra-fast tracking speed and guaranteed tracking efficiency.
- Accurate recognition and tracking of multiple power points.
- Reliable automatic limit function for maximum PV input power, preventing overload.
- Wide MPP operating voltage range.
- High-speed and high-powered dual-core processor architecture for improved system response and optimized performance.
- Die-cast aluminum case for excellent heat dissipation.
- Automatic identification of 12/24/36/48VDC system voltage or user-defined working voltage.
- Concise human-computer interactive interface with convenient multiple combination keys, dynamically displaying system operating data and working conditions.
- Supports 4 charging options: Sealed, Gel, Flooded, and User-defined.
- Battery temperature compensation function.
- Real-time energy statistics function.
- RS-485 and RS-232 communication bus interfaces with Modbus protocol for various communication requirements.
- Compatible with PC monitoring and external display units (e.g., MT50) for real-time data checking and parameter setting.
- Supports software upgrades.
3. Safety Instructions
Please read all instructions and warnings in this manual before installation and operation. Keep this manual for future reference.
- Ensure proper ventilation around the controller to prevent overheating.
- Install the controller indoors, away from direct sunlight, high temperatures, and moisture.
- Connect the battery first, then the solar panel, and finally the load. Disconnect in the reverse order.
- Use appropriate circuit breakers or fuses for the battery, solar panel, and load circuits.
- Ensure all wiring is securely connected and properly insulated to prevent short circuits.
- Do not attempt to disassemble or repair the controller yourself. Contact qualified personnel for service.
- Wear eye protection when working with batteries.
- Keep children away from the solar power system.
4. Product Components and Interface
Familiarize yourself with the physical components and connection points of your ET6415BND controller.
5. Installation and Setup
5.1 Mounting
Mount the controller vertically on a wall or other suitable surface, ensuring adequate airflow for cooling. Avoid mounting in direct sunlight or areas with high humidity.
5.2 Wiring Sequence
Follow the wiring sequence carefully to prevent damage to the controller and other components:
- Connect the Battery: Connect the battery to the controller's battery terminals (BATT+ and BATT-). Ensure correct polarity.
- Connect the Solar Panel: Connect the solar panel array to the controller's PV terminals (PV+ and PV-). Ensure correct polarity.
- Connect the Load (Optional): If using a DC load directly from the controller, connect it to the load terminals.
WARNING: Disconnect in the reverse order: Load, then Solar Panel, then Battery.
6. Operation
6.1 LCD Display and Buttons
The controller features an LCD display and multiple buttons for navigation and settings. Use the buttons to scroll through menus, view system data, and adjust parameters.
6.2 Setting Battery Type
The controller supports four battery charging options: Sealed, Gel, Flooded, and User-defined. It is crucial to select the correct battery type to ensure optimal charging and prolong battery life. Refer to the detailed manual for specific steps on how to navigate the menu and set the battery type.
6.3 Monitoring System Data
The LCD display provides real-time data on PV voltage, battery voltage, charging current, power, and energy statistics. Use the navigation buttons to cycle through different display screens.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your solar charge controller.
- Check Connections: Periodically inspect all wiring connections for tightness and corrosion.
- Clean the Controller: Keep the controller clean and free from dust and debris. Use a dry cloth for cleaning.
- Inspect for Damage: Check for any physical damage to the casing, wiring, or terminals.
- Verify Ventilation: Ensure that the ventilation openings are not blocked.
8. Troubleshooting
This section covers common issues you might encounter and their potential solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No display/Controller not powering on | Battery not connected or low voltage; reversed polarity; loose connection. | Check battery connections and voltage. Ensure correct polarity. Tighten connections. |
| Battery not charging | PV array not connected or low voltage; reversed PV polarity; shading on panels; incorrect battery type setting. | Check PV connections and voltage. Ensure correct polarity. Clear shading. Verify battery type setting. |
| Overcharging/Undercharging | Incorrect battery type setting; battery temperature sensor fault. | Verify battery type setting. Check battery temperature sensor connection and function. |
| Load not working | Load disconnected; overload; short circuit; low battery voltage cut-off. | Check load connections. Reduce load. Check for short circuits. Charge battery. |
For more complex issues, refer to the full product manual or contact customer support.
9. Specifications
The following table provides the technical specifications for the ET6415BND model, alongside other models in the series for comparison.
ET6415BND Specifics:
| Parameter | Value |
|---|---|
| Nominal System Voltage | 12/24/36/48VDC Auto |
| Nominal Battery Current | 60A |
| Battery Input Voltage Range | 8V ~ 68V |
| Max. PV open circuit voltage | 150V (138V:2) |
| MPP Voltage Range | (VBAT+2V) ~ 108V:3 |
| Maximum Input Power | 800W/12V, 1600W/24V, 2400W/36V, 3200W/48V |
| Self Consumption | 1.4W ~ 2.6W |
| Grounding | Common Negative |
| LCD temperature range | -20°C ~ +70°C |
| Ambient temperature range | -25°C ~ +55°C |
| Storage temperature range | -30°C ~ +85°C |
| Humidity range | ≤95%, N.C. |
| Enclosure | IP20 |
| Altitude | < 5000 m (Derate to operate according to IEC60146 at a height exceeding 1000 m) |
| Overall dimension | 449.1 x 208 x 107 mm |
| Mounting Hole | Φ10 |
| Terminal | 2AWG (35mm²) |
| Net Weight | 5.5 kg |
10. User Tips
- Plan Your Installation: Before mounting, carefully consider the dimensions (height, width, length) of the controller and ensure you have adequate space for installation and ventilation. Refer to the 'Overall dimension' in the specifications.
- Verify Battery Compatibility: Always double-check that your battery type (Sealed, Gel, Flooded, or User-defined) is correctly selected in the controller settings to prevent damage and ensure efficient charging.
- Monitor Performance: Regularly check the LCD display or connect to PC monitoring software to observe system performance and ensure all components are operating within expected parameters.
11. Warranty and Support
The EPEVER ET6415BND MPPT Solar Charge Controller comes with a 2-year warranty from the date of purchase, covering defects in materials and workmanship under normal use.
For technical support, warranty claims, or service inquiries, please contact your authorized dealer or the manufacturer directly. Ensure you have your product model and purchase information ready when contacting support.
