1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Suuonee 60A PWM Solar Charge Controller. This controller is designed for off-grid solar systems, automatically detecting 12V or 24V battery systems. It features an LCD display for monitoring and parameter adjustment, along with a 3-stage PWM charging system to optimize battery life and performance.
2. Safety Information
Please read all instructions carefully before installation and operation. Failure to follow these instructions may result in damage to the unit, personal injury, or property damage.
- Ensure all connections are correct and secure before applying power.
- Connect the battery first, then the solar panel, and finally the load. Disconnect in the reverse order.
- Do not connect the solar panel to an AC power source.
- Install the controller in a well-ventilated area, away from flammable materials and direct sunlight.
- Use appropriate circuit breakers or fuses for all connections.
- This device is for indoor use only. Protect it from water and moisture.
3. Product Features
- Industrial-Grade Construction: Built with an industrial microcontroller for durability and continuous performance in demanding conditions.
- Clear LCD Display: Large LCD screen for real-time monitoring and easy adjustment of parameters, allowing customization for optimal charging.
- Advanced 3-Stage PWM Charging: Maximizes battery life through voltage control during bulk, absorption, and float stages, ensuring efficient energy transfer for various battery types.
- Comprehensive Protections: Includes built-in safeguards against short-circuit, open-circuit, reverse polarity, and overload, protecting both the controller and connected batteries.
- Efficient Heat Management: Features MOSFET reverse current protection to minimize heat generation, enhancing stability and extending the unit's lifespan.
- Dual USB Output: Provides 5V/2A USB ports for charging mobile devices.
4. Package Contents
The package includes:
- 1 x Suuonee 60A PWM Solar Charge Controller
- 1 x User Manual
5. Specifications
| Parameter | Value |
|---|---|
| System Voltage | 12V / 24V Auto |
| Solar Panel Voltage (12V System) | 18V Solar Panel |
| Solar Panel Voltage (24V System) | 36V Solar Panel |
| Rated Charge Current | 60A |
| Rated Discharge Current | 60A |
| Charge Float Voltage | 13.7V (default, adjustable) |
| Discharge Stop Voltage | 10.7V (default, adjustable) |
| Discharge Reconnect Voltage | 12.6V (default, adjustable) |
| Self-Consume | <1mA |
| USB Output | 5V / 2A |
| Item Weight | 3.52 ounces (0.1 Kilograms) |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Display Type | LCD |
6. Installation
Follow these steps for proper installation of the solar charge controller:
- Prepare for Installation: Choose a dry, well-ventilated location for the controller, away from direct sunlight and heat sources. Ensure sufficient space around the controller for air circulation.
- Connect the Battery: Connect the battery to the charge controller first. Ensure correct polarity (+ to + and - to -). The controller will automatically detect the battery voltage (12V or 24V).
- Connect the Solar Panel: Connect the solar panel to the charge controller. Ensure correct polarity. Do not connect the solar panel to an AC power source.
- Connect the Load: Connect the DC load to the charge controller. Ensure correct polarity. Do not exceed the maximum rated current of the controller.
Important: Always connect the battery first, then the solar panel, then the load. Disconnect in the reverse order: load, then solar panel, then battery.
7. Operation
7.1 LCD Display and Buttons
The controller features an LCD display for real-time system status and three buttons for navigation and parameter adjustment:
- Menu Button: Press to enter/exit the menu and cycle through display modes.
- Up Button: Increase values or move up in menu options.
- Down Button: Decrease values or move down in menu options.
7.2 Parameter Settings
To adjust parameters:
- Press the Menu button to enter the setting interface.
- Use the Up and Down buttons to navigate through parameters such as battery type, charge float voltage, discharge stop voltage, and discharge reconnect voltage.
- Long press the Menu button until the value flashes to enter edit mode.
- Use the Up and Down buttons to adjust the value.
- Long press the Menu button again to save the setting and exit edit mode.
7.3 USB Output
The controller provides two 5V/2A USB ports for charging compatible electronic devices. These ports are active when the controller is powered by the battery.
8. 3-Stage PWM Charging
The controller utilizes a 3-stage Pulse Width Modulation (PWM) charging algorithm to efficiently charge batteries and prolong their lifespan:
- Bulk Charge: When the battery is below the float voltage, the controller delivers maximum current to quickly bring the battery up to a higher voltage level.
- Absorption Charge: Once the battery reaches the absorption voltage, the controller maintains this voltage while the current gradually decreases. This stage ensures the battery is fully charged without overcharging.
- Float Charge: After the absorption stage, the controller reduces the voltage to a lower float level. This maintains the battery at full charge and compensates for self-discharge, preventing overcharging.
9. Built-in Protections
The Suuonee 60A PWM Solar Charge Controller incorporates multiple protection features to ensure safe and reliable operation:
- Short-Circuit Protection: Automatically disconnects in case of a short circuit in the solar panel, battery, or load.
- Open-Circuit Protection: Protects the system if the solar panel or battery circuit is open.
- Reverse Polarity Protection: Prevents damage if the battery or solar panel is connected with incorrect polarity.
- Overload Protection: Disconnects the load if the current exceeds the rated capacity.
- Over-Discharge Protection: Prevents the battery from being discharged below a safe voltage level.
- Over-Charge Protection: Stops charging once the battery reaches its full capacity to prevent damage.
10. Troubleshooting
If you encounter issues with your solar charge controller, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Controller not powering on | Battery not connected or reverse polarity. | Check battery connections and ensure correct polarity. |
| Battery not charging | Solar panel not connected, insufficient sunlight, or reverse polarity. | Check solar panel connections, ensure adequate sunlight, verify polarity. |
| Load not working | Load disconnected, overload, or battery voltage too low. | Check load connections, reduce load, or charge battery. |
| LCD display abnormal | Loose connection or internal fault. | Check all connections. If problem persists, contact support. |
11. Maintenance
To ensure optimal performance and longevity of your solar charge controller, follow these maintenance guidelines:
- Regular Inspection: Periodically check all wiring connections for tightness and corrosion.
- Cleaning: Keep the controller clean and free from dust and debris. Use a dry cloth to wipe the surface.
- Ventilation: Ensure the installation area remains well-ventilated to prevent overheating.
- Environmental Conditions: Avoid exposing the controller to extreme temperatures, humidity, or corrosive environments.
12. Product Overview Video
Watch this video for a visual overview of the Suuonee Solar Charge Controller and its features.
Video: A brief demonstration of the Suuonee Solar Charge Controller, showcasing its design and basic functionalities.
13. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact Suuonee customer service directly. Keep your purchase receipt as proof of purchase.