1. Product Overview
Thank you for choosing the EASUN POWER series of solar charge controllers. This product utilizes an advanced Maximum Power Point Tracking (MPPT) control algorithm to quickly track the maximum power point of your photovoltaic array in any environment. This ensures optimal energy harvesting from your solar panels, significantly improving the energy utilization rate of your solar system.
The controller features an LCD display and supports an optional remote instrument for dual display functionality, offering convenience for users to expand applications and meet various monitoring needs. It is suitable for diverse applications including communication base stations, home power supply systems, traffic signal lights, solar street lamps, and garden lighting systems.
Key Features:
- 60A MPPT solar charge controller with fan cooling.
- MPPT efficiency greater than 99%, with a peak conversion efficiency exceeding 98%.
- DSP processors technology ensures high speed and performance.
- Multi-stage charging mode for optimized battery health.
- Comprehensive protection features: PV array short circuit, PV reverse polarity, battery reverse polarity, overcharging, and output short circuit.
- Equalization charging function.
2. Important Notices and Safety Precautions
Please read these notices carefully before installation and operation to ensure safe and efficient use of the solar charge controller.
- Common Positive Controller: This MPPT series is a common positive controller. The positive poles of the PV array, battery, and load can be grounded simultaneously.
- Inverter/High Current Load Connection: If an inverter or other device with a high starting current is part of your system, connect it directly to the battery. Do NOT connect such devices to the controller's load terminals.
- Lithium Battery Setup: If using lithium batteries, ensure you set the system voltage first, and then configure the corresponding battery type before use. Refer to section 3.9 for detailed instructions.
3. Installation and Wiring
3.1 Mounting the Unit
Consider the following points before selecting where to install the controller:
- Do not mount the inverter on flammable construction materials.
- Mount on a solid surface.
- Install this inverter at eye level to allow the LCD display to be read at all times.
- For proper air circulation to dissipate heat, allow a clearance of approximately 20 cm to the sides and approximately 50 cm above and below the unit.
- The ambient temperature should be between 0°C and 55°C to ensure optimal operation.
- The recommended installation position is to be adhered to the wall vertically.
- Be sure to keep other objects and surfaces as shown in the diagram to guarantee sufficient heat dissipation and to have enough space for removing wires.
CAUTION: SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.
Figure 2: Mounting the Unit with recommended clearances
3.2 Wiring Precautions and Steps
Follow these steps to connect the cables and install the system:
- Connect Batteries: Connect the battery cables to the controller.
- Connect the Load: Connect your DC loads to the controller's load terminals.
- Connect Solar Panels: Connect the solar panel array to the controller's PV input terminals.
- Connect Inverter (Optional): If using an inverter, connect it directly to the battery. This step can be ignored if no inverter is used.
Figure 3: MPPT Solar Charge Controller Connection Diagram
3.3 Battery Connection Diagram
Ensure correct battery connections based on your system voltage:
Figure 4: Battery Connection Diagram (Left: 24VDC System, Right: 48VDC System)
3.4 Product Dimensions
Figure 5: Product Dimensions (ICharger MPPT 12/24/36/48V 60A: 285*217*125mm)
3.5 Installation Video
Video 1: Demonstration of connecting the solar charge controller.
4. Operating Instructions
4.1 LCD Screen and Indicators
The controller features an LCD display to show system status and parameters. LED indicators provide quick visual feedback.
Figure 6: Product Overview with LCD Display and Controls
LCD Display Icons:
Figure 7: LCD Display Interface
Status Introduction:
| Item | Icon | Status |
|---|---|---|
| PV array | ☀️ | Day |
| PV array | 🌙 | Night |
| PV array | ☀️ → MPPT → 🔋 | Charging |
| Battery | 🔋 | Uncharged / Battery capacity |
| Battery | LiPo / LiFe | Battery type |
| Load | 💡 (on) | Load on |
| Load | 💡 (off) | Load off |
LED Indicator Messages:
| LED Indicator | Messages |
|---|---|
| AC / INV (Green Solid On) | Output is powered by utility in Line mode. |
| AC / INV (Green Flashing) | Output is powered by battery or PV in battery mode. |
| CHG (Green Solid On) | Battery is fully charged. |
| CHG (Green Flashing) | Battery is charging. |
| FAULT (Red Solid On) | Fault occurs in the inverter. |
| FAULT (Red Flashing) | Warning condition occurs in the inverter. |
4.2 Button Definition and Navigation
| Button | Description |
|---|---|
| ESC | To exit setting mode |
| UP (▲) | To go to previous selection / Short press to switch up |
| DOWN (▼) | To go to next selection / Short press to switch down |
| ENTER | To confirm the selection in setting mode or enter setting mode |
| MENU | Short press to switch down; long press (3s) to enter next interface. |
| SET | Short press to switch up; long press (3s) to exit without saving. |
Boot Screen:
Upon power-on, the controller will display the starting interface, battery voltage, and software revision. The LCD will automatically switch to the first interface after 15 seconds if no action is taken.
Load Switch On/Off:
From the main page, short press the "SET" button to toggle the load on or off. To save settings, long press "MENU" for 3 seconds. To exit without saving, long press "SET" for 3 seconds.
Main Loop Pages:
After power-on, the LCD screen enters the main page. Short press "MENU" or "SET" to navigate through the main loop pages, which include battery temperature, charging current, discharging current, and accumulated charging/discharging AH.
Setting Pages:
From the main page, long press "MENU" for 3 seconds to enter the setting page. Then, short press "MENU" or "SET" to switch between different setting pages.
System Voltage Setting:
In the setting pages, navigate to the system voltage page. Long press "MENU" for 3 seconds until "auto" flashes. Then, short press "MENU" or "SET" to select 12V, 24V, 36V, or 48V. Note: 36V is not automatically identified and must be set manually.
Battery Type Setting:
From the main page, long press "MENU" for 3 seconds to enter the setting page, then short press "MENU" to reach the battery type page (user mode 1). Long press "MENU" for 3 seconds to enter battery type selection, then short press "MENU" or "SET" to choose between Gel, Sealed, Flooded, and Lithium batteries.
For lithium batteries, long press "MENU" for 3 seconds on the lithium battery page to set capacity. The parameters will flash, allowing you to adjust the capacity using "MENU" or "SET". Long press "MENU" for 3 seconds to save.
Load Working Mode:
The controller offers several load working modes:
- LD1 (Regular Mode): Load works normally and can be turned on/off manually.
- LD2 (Light Control Mode): Load automatically opens at dark and closes at dawn.
- LD3 (Light & Time Control Mode): Load works for a set duration after dark and before dawn (automatically identifies dark/light based on local environment).
- LD4 (Reverse Light Control Mode): Load automatically opens at dawn and closes at dark.
PV Voltage Page:
Long press "SET" for 3 seconds to switch between the main page and the PV voltage page.
Equalization Charging Duration:
From the main page, switch to the equalization charge page. Long press "MENU" for 3 seconds when the parameter flashes, then long press again for 3 seconds to enter the duration setting page. Use "MENU" or "SET" to adjust the time.
Absorption Charging Duration:
Similar to equalization charging, navigate to the absorption charge page. Long press "MENU" for 3 seconds when the parameter flashes, then long press again for 3 seconds to enter the duration setting page. Use "MENU" or "SET" to adjust the time.
4.3 Monitoring and Control via SmartESS App (Optional)
The controller supports monitoring and control via the SmartESS App, available for iOS and Android devices. A WIFI/GPRS data acquisition module is required and needs to be purchased separately.
Figure 8: Monitor and Control via SmartESS App (WIFI module optional)
Note: The SMH Inverter model has transitioned to a direct plug WIFI style. Both old (external module) and new (built-in) WIFI styles may be shipped randomly. Please be aware of this variation.
Figure 9: Old Style WIFI Module Connection
Figure 10: New Style WIFI Module Connection
5. Maintenance
To ensure the longevity and optimal performance of your EASUN POWER Solar Charge Controller, regular maintenance is recommended:
- Keep the unit clean and free from dust and debris. Ensure ventilation openings are not blocked.
- Periodically check all wiring connections for tightness and corrosion. Loose connections can lead to power loss or overheating.
- Inspect the unit for any signs of physical damage or overheating.
- Ensure the ambient temperature remains within the specified operating range (0°C to 55°C).
6. Troubleshooting and Fault Management
This section provides guidance on identifying and resolving common issues with your solar charge controller.
Protection Functions:
| Protection | Condition | Status |
|---|---|---|
| Solar panel reversed | Solar panel can be reversed if battery is not connected | Controller isn't broken |
| Battery is reversed | Battery can be reversed if PV is unconnected | Controller isn't broken |
| Battery over-voltage | Battery voltage reaches the over-voltage point | Stop charging and discharging |
| Battery over-discharge | Battery voltage drops the under-voltage point | Stop discharging |
| Over-load | The load current is over the rated current | Turn off the output |
Fault Management Table:
| Error Code | Cause | Correction |
|---|---|---|
| PV array indicator is off when sunlight is enough | Solar panel is disconnected | Check whether PV array connection is proper or not |
| No sign on the LCD when connection is right | 1. Battery voltage is less than 8V 2. Voltage of solar panel is less than battery voltage |
1. Check battery voltage (at least 8V to activate the controller) 2. The voltage of PV must be higher than battery voltage. |
| E1 (Ex1) | Battery over discharge | The load will stop automatically and recover when battery voltage reaches 12.6V (LVR) |
| E2 (Ex2) | Battery over voltage | Make sure the settled value of high voltage disconnection voltage is over battery voltage and reconnect PV array. |
| E3 (Ex3) | Over load | Reduce load or check load connection |
| E5 (Ex5) | Controller overheating | The controller will restart after it cools down |
| E6 (Ex6) | Input voltage of solar panel is too high | Check voltage of solar panel and reduce quantities of solar panel in series |
| E7 (Ex7) | Controller will restart after setting system voltage | No operation |
7. Technical Specifications
Detailed technical data for the EASUN POWER ICharger MPPT Solar Charge Controller.
| Parameter | 20A | 30A | 40A | 60A |
|---|---|---|---|---|
| Input | ||||
| 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) |
16.8V-150V(12V) 33.6V-150V(24V) 50.4V-150V(36V) 67.2V-150V(48V) |
| System rated voltage | 12/24V Auto. | 12V/24V/36/48V Auto. | ||
| Maximum input power | 260W(12V) 520W(24V) |
390W(12V) 780W(24V) |
520W(12V) 1040W(24V) |
780W(12V) 1560W(24V) 2340W(36V) 3120W(48V) |
| Output | ||||
| Rated Discharge Current | 20A | 20A | 20A | 30A |
| Battery type | User default, Sealed, Flooded, GEL, LiFePO4, Li(NiCoMn)O2. | |||
| Equalized charging voltage | Maintenance-free lead-acid battery: 14.6V (Duration: 2 hours) GEL: No Lead-acid Flooded battery: 14.8V (Duration: 2 hours) |
|||
| Absorption charging voltage | Maintenance-free lead-acid battery: 14.4V (Duration: 2 hours) GEL: 14.2V Lead-acid Flooded battery: 14.6V (Duration: 2 hours) |
|||
| Float charging voltage | Maintenance-free lead-acid battery, GEL, lead-acid Flooded battery: 13.8V | |||
| Static loss | 24V(<50mA)/48V(<35mA) | |||
| LVR (Low Voltage Reconnect) | Maintenance-free lead-acid battery, GEL, lead-acid Flooded battery: 12.6V | |||
| LVD (Low Voltage Disconnect) | Maintenance-free lead-acid battery, GEL, lead-acid Flooded battery: 10.8V | |||
| Light control voltage | 5V | 10V | 15V | 20V |
| Temperature compensation coefficient | -4mV/°C/2V (25°C) | |||
| Discharge loop voltage drop | ≤0.2V | |||
| Operating temperature | -20°C ~ +55°C | |||
| Storage temperature | -30°C ~ +80°C | |||
| Working humidity | ≤90%, No condensation | |||
| Protection class | IP30 | |||
| Grounded type | Positive grounded | |||
| Aperture for installation | Φ5mm | |||
Note: The preceding parameters are for 12V system at 25°C. For 24V system, multiply by 2; for 36V system, multiply by 3; for 48V system, multiply by 4.
8. User Tips
- MPPT Verification: Some users inquire about the authenticity of the MPPT functionality. Ensure your solar panel voltage is significantly higher than your battery voltage for the MPPT algorithm to operate effectively and show its benefits. Monitor the charging current and voltage to observe the MPPT performance.
- Optimal Performance: For best results, ensure all connections are secure and the unit is mounted in a well-ventilated area to prevent overheating.
9. Warranty and Support
For any quality problems or technical support inquiries regarding your EASUN POWER Solar Charge Controller, please contact our support team.
Support Email: support@easunpower.com
When contacting support, please provide a detailed description of the issue, including any error codes displayed, and if possible, send videos or pictures to assist in diagnosis.
