1. Introduction
Thank you for choosing the EASUN POWER MPPT Solar Charge Controller. This manual provides essential information for the safe and efficient operation of your solar charge controller. Please read it thoroughly before installation and use.
2. Safety Information and Warnings
Warning and Caution:
- Only qualified professionals should install these controllers. Read all manuals before installation.
- Keep the controller away from water. Do not use a wet towel to wipe the controller.
- Ensure wiring is correct; do not reverse polarity. Pay close attention to the terminal wiring sequence.
- Operate the controller within an environmental temperature range of -20℃ to +55℃. Avoid direct sunlight.
- Ensure good heat dissipation around the controller.
- Use pure copper wires for all connections and ensure correct polarity.
- Unless you are a professional, avoid setting parameters as the controller functions optimally in default conditions, except for lithium batteries which require specific configuration.
3. Product Overview
The EASUN POWER MPPT Solar Charge Controller is designed to efficiently manage power from your solar panels to charge your batteries. It features advanced MPPT technology for optimal energy harvesting.
Key Components:
- LCD Display: Shows system status and parameters.
- Operation Keys: For navigation and setting parameters.
- Fan Cooling: Ensures optimal operating temperature.
- RS485 Port: For communication with external devices.
- Temperature Sensor Port: For external temperature monitoring.
- PV+ / PV- Terminals: Connect to solar panels.
- BAT+ / BAT- Terminals: Connect to battery bank.
- LOAD+ / LOAD- Terminals: Connect to DC load.
4. Setup and Installation
Follow these steps carefully to install your MPPT solar charge controller. Ensure all safety precautions are observed.
4.1 Wiring Diagram
Wiring Steps:
- Step 1: Connect batteries. Connect the positive and negative terminals of your battery bank to the BAT+ and BAT- terminals on the controller.
- Step 2: Connect the load. Connect your DC load to the LOAD+ and LOAD- terminals.
- Step 3: Connect the solar panels. Connect your PV array to the PV+ and PV- terminals.
- Step 4: Connect the inverter (optional). If using an inverter, connect it to the battery bank. This step can be ignored if no inverter is used.
Important: Always connect the battery first, then the solar panels, and finally the load. Disconnect in the reverse order.
4.2 Connection Points
5. Operating Instructions
5.1 Button Introduction
| Function Key | System Mode | Operation | Operation Indication |
|---|---|---|---|
| ENTER | Setting Mode | Long Press | Exit from setting & saving the present settings data |
| Short Press | Enter the next setting page | ||
| UP (▲) | Setting Mode | Short Press | Adjust the parameter by increase the value |
| DOWN (▼) | Setting Mode | Short Press | Adjust the parameter by decrease the value |
| ESC | Setting Mode | Short Press | Exit SET Mode without saving data |
In View Mode:
| Function Key | System Mode | Operation | Operation Indication |
|---|---|---|---|
| ENTER | View Mode | Long Press | Enter SET mode |
| UP (▲) | View Mode | Short Press | Screen page down |
| DOWN (▼) | View Mode | Short Press | Screen page up |
| ESC | View Mode | Short Press | - |
5.2 LCD Screen Status Introduction
| Item | ICO | Status |
|---|---|---|
| PV array | Sun icon / Moon icon | Day / Night |
| Sun icon -> MPPT -> Battery icon | Charging | |
| Battery | Battery icon | Uncharged / Battery capacity |
| LiPo / LiFe icons | Battery type | |
| Load | Light bulb icon (on) / Light bulb icon (off) | Load on / Load off |
5.3 LCD Display Navigation
Use the UP and DOWN keys to navigate through the display menus:
- Menu 1: Battery Voltage & Charge Current
- Menu 2: Battery State of Charge (SOC) & Charge Power (KW)
- Menu 3: PV Voltage & Temperature
- Menu 4: Battery Type & System Voltage
- Menu 5: Error & Charge State
5.4 Parameter Setting
To enter setting mode, long press the ENTER key from the View Mode. Use UP/DOWN keys to adjust values and ENTER to confirm or move to the next setting. Use ESC to exit without saving.
5.4.1 Battery Type Setting Overview
5.4.2 Setting for 'USE' Battery Type
5.4.3 Setting for 'Li' (Lithium) Battery Type
5.4.4 Setting for 'SEL/GEL/FLD' Battery Types
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your solar charge controller.
- Cleaning: Periodically clean the exterior of the controller with a dry cloth. Do not use wet cloths or harsh chemicals.
- Connections: Regularly check all wiring connections to ensure they are tight and free from corrosion. Loose connections can cause overheating and damage.
- Ventilation: Ensure that the controller's cooling fins and fan (if present) are free from dust and obstructions to maintain proper heat dissipation.
- Environmental Check: Verify that the operating environment remains within the specified temperature range and is free from excessive moisture or direct sunlight.
7. Troubleshooting
If you encounter issues with your solar charge controller, refer to the following common troubleshooting tips:
- No Display/No Power: Check all power connections, including battery and solar panel inputs. Ensure the battery is adequately charged.
- Charging Issues: Verify solar panel connections and ensure they are receiving sufficient sunlight. Check battery voltage and type settings on the controller.
- Error Codes: If an error code appears on the LCD display (refer to Menu 5: ERROR & Charge State), consult the full product manual or contact support for specific code interpretations. A general 'system problem' might sometimes be resolved by restarting the controller (disconnecting and reconnecting power in the correct sequence).
- Overheating: Ensure the controller has adequate ventilation and is not exposed to direct sunlight. Clean any dust from the cooling fins.
8. Specifications
Below are the technical specifications for the EASUN POWER MPPT Solar Charge Controller models:
| Rated charge current | 20A | 30A | 40A | 60A | 80A | 100A |
|---|---|---|---|---|---|---|
| Solar panel input range | 16.8V-60V (12V) 33.6V-60V (24V) | 16.8V-75V (12V) 33.6V-75V (24V) | 16.8V-100V (12V) 33.6V-100V (24V) | 18V-150V (12V) 37V-150V (24V) 37V-150V (36V) 75V-150V (48V) | ||
| System rated voltage | 12/24V Auto recognized | 12/24V/36/48V Auto recognized | ||||
| Maximum battery voltage | 8V-32V | 12V System (DC8.7V-DC15.5V) 24V System (DC16V-DC31V) 36V System (DC33V-DC41V) 48V System (DC42V-DC64V) | ||||
| Maximum input power | 260W (12V) 520W (24V) | 390W (12V) 780W (24V) | 520W (12V) 1040W (24V) | 780W (12V) 1560W (24V) 2340W (36V) 3120W (48V) | 1200W (12V) 2400W (24V) 3600W (36V) 4800W (48V) | 1500W (12V) 3000W (24V) 4500W (36V) 6000W (48V) |
| Battery type | User default, Sealed, Flooded, GEL, LiFePO4, Li(NiCoMn)O2. | |||||
Product Dimensions:
- Length: 285mm
- Width: 217mm
- Height: 125mm
9. User Tips
Here are some helpful tips for using your EASUN POWER MPPT Solar Charge Controller:
- Battery Compatibility: This controller supports various battery types including Sealed, Flooded, GEL, LiFePO4, and Li(NiCoMn)O2. Ensure you select the correct battery type in the settings for optimal charging and battery longevity.
- Off-Grid Systems: The controller is suitable for off-grid solar systems with stationary lead-acid batteries, providing efficient three-stage charging.
- Wiring Order: Always connect the battery first, then the solar panels, and finally the load. Disconnect in the reverse order to prevent damage.
- Heat Management: Proper ventilation is crucial. Ensure the controller is installed in a location with good airflow and away from direct heat sources to prevent overheating.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.