1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your EASUN MPPT Solar Charger Controller. Please read this manual thoroughly before installation and use to ensure optimal performance and safety.
Product Features:
- MPPT Solar Charge Controller (80A/100A models available)
- 12V/24V/48V (Auto-detection); 36V (Manual setting)
- MPPT Efficiency > 99%, Peak Conversion Efficiency > 98%
- High-speed DSP processor technology
- Multi-stage charging mode
- Comprehensive protections: PV array short circuit, PV reverse polarity, battery reverse polarity, overcharge, output short circuit
- Equalization charging function
- Built-in Temperature Sensor (BTS) function
- Supports RS485 communication with Modbus protocol
2. Product Overview
Internal Components:
Smart Fan Design:
The controller features a dual fan design for more uniform heat dissipation. The fan operation is temperature-controlled:
- Temperature < 40°C: Fan does not turn on (saves energy loss).
- Temperature > 45°C: Fan starts to turn on (ensures normal operation of the inverter).
3. Setup and Installation
Connection Diagram:
Follow the diagram below for proper connection of the solar panels, battery, temperature sensor, and PC monitoring.
Initial Configuration:
After connecting, you may need to configure the battery type and system voltage. Refer to the 'Operating Instructions' section for detailed parameter settings.
4. Operating Instructions
LCD Display Introduction:
The LCD provides real-time information about your solar system. Navigate through the menus using the operation keys.
- Menu 1: Battery Voltage & Charge Current
- Menu 2: Battery State of Charge (SOC) & Charge KW
- Menu 3: PV Voltage & Temperature
- Menu 4: Battery Type & System Voltage
- Menu 5: Error & Charge State
Button Introduction:
The controller features four buttons for navigation and setting adjustments.
| Function Key | System Mode | Operation | Operation Indication |
|---|---|---|---|
| ENTER | View Mode | Long Press | Enter SET mode |
| View Mode | Short Press | Screen page down | |
| View Mode | Short Press | Screen page up | |
| ESC | View Mode | Short Press | - |
| ENTER | Setting Mode | Long Press | Exit from setting & saving the present settings data |
| Setting Mode | Short Press | Enter the next setting page | |
| UP Arrow | Setting Mode | Short Press | Adjust the parameter by increase the value |
| DOWN Arrow | Setting Mode | Short Press | Adjust the parameter by decrease the value |
| ESC | Setting Mode | Short Press | Exit SET Mode without saving data |
Parameter Setting:
To enter setting mode, long press the ENTER key from View Mode. Use the UP/DOWN arrows to adjust values and short press ENTER to move to the next setting page. Short press ESC to exit without saving, or long press ENTER to exit and save.
Battery Type Setting (USE):
Battery Type Setting (LI):
Battery Type Setting (GEL/SEL/FLD):
5. Maintenance
To ensure the longevity and optimal performance of your MPPT Solar Charger Controller, regular maintenance is recommended:
- Cleaning: Keep the controller clean and free from dust and debris. Use a dry, soft cloth for cleaning.
- Ventilation: Ensure proper airflow around the unit. Do not block the fan vents. The smart fan system will activate automatically when temperatures exceed 45°C to prevent overheating.
- Connections: Periodically check all wiring connections for tightness and corrosion. Loose connections can lead to power loss or damage.
- Environmental Conditions: Ensure the controller is operated within the specified environmental temperature range (-20°C to +55°C) and stored within (-40°C to +75°C).
6. Troubleshooting
The LCD display can show error codes (Menu 5) to help diagnose issues. Refer to the user manual for a complete list of error codes and their solutions. Common issues and general guidance:
- No Power/Display: Check battery connections and voltage. Ensure solar panels are receiving sunlight.
- No Charging: Verify solar panel connections, voltage, and current. Check if the battery type and system voltage settings are correct.
- Overcharging/Undercharging: Review battery type and charging parameter settings (EQU, BST, FLD voltages).
- Overheating: Ensure adequate ventilation and that the cooling fans are operating correctly when the unit is warm.
For persistent issues, consult the full user manual or contact customer support.
7. Specifications
Detailed technical specifications for the IChanger MPPT 80A and 100A models:
| Item | IChanger MPPT8048 | IChanger MPPT10048 |
|---|---|---|
| Charging Mode | 3-stage: Constant Current (MPPT), Constant Voltage, Float | |
| System Voltage | 12/24/36/48V Auto | |
| Max PV Input Power | 1200W/12V; 2400W/24V; 3600W/36V; 4800W/48V | 1500W/12V; 3000W/24V; 4500W/36V; 6000W/48V |
| Max PV Input Voltage | 150VDC | |
| Battery Voltage Automatic Recognition | 12V System (DC8.7V-DC15.5V), 24V System (DC16V-DC31V), 36V System (DC33V-DC41V), 48V System (DC42V-DC64V) | |
| Overcharging Protection Voltage | 12V System (16V), 24V System (32V), 36V System (48V), 48V System (64V) | |
| Limited Current Protection | 80A | 100A |
| Max Efficiency | ≥98.1% | |
| PV Utilization | ≥99% | |
| Auto Temperature Compensation | -3mV/2V/°C | |
| Protection Function | PV array short circuit, PV reverse polarity, battery reverse polarity, overcharge, output short circuit | |
| Temperature Protection | 80°C | |
| Fan-On Temperature | >45°C | |
| Fan-Off Temperature | <40°C | |
| Enclosure | IP21 | |
| Environmental Temperature | -20°C ~ +55°C | |
| Storage Temperature | -40°C ~ +75°C | |
| Size (mm) | 252*201*80.3 | |
| Net Weight (Kg) | 2.28 | 2.49 |
| Electromagnetic Compatibility | Accord to EN61000, EN55022, EN55024 | |
8. Warranty and Support
All EASUN POWER products typically come with a 1-year warranty from the store. For any product-related inquiries, technical support, or warranty claims, please contact the seller or manufacturer directly. Ensure you have your purchase details and product model number ready.
9. User Tips
- Always ensure correct polarity when connecting solar panels and batteries to prevent damage.
- For optimal performance, place the controller in a well-ventilated area, away from direct sunlight and moisture.
- Regularly monitor the LCD display for system status and any error messages.
- If using a 36V battery system, remember to manually set the system voltage as it is not auto-detected.