Walfront Solar Controller 10A: User Manual

1. Introduction

Thank you for choosing the Walfront 10A Solar Controller. This intelligent regulator is designed to efficiently manage your solar panel and battery system, ensuring optimal charging and discharge performance for 12V and 24V setups. This manual provides detailed instructions for installation, operation, and maintenance to help you get the most out of your device.

2. Product Overview

2.1 Key Features

• Automatic System Voltage Adaptation: Compatible with both 12V and 24V systems, automatically detecting the voltage.
• Built-in Industrial Microcontroller: For automated management of solar panels and batteries.
• LCD Display: Provides real-time information on system status, voltage, current, and charge/discharge parameters.
• Dual USB Output: Two 5V 2.5A (maximum) USB ports for charging mobile devices, tablets, or PCs.
• Advanced PWM Charging Management: Features fast charging, large current charging, and floating charging to extend battery life.
• Comprehensive Protection: Includes overcurrent protection, short circuit protection, reverse connection protection, low voltage protection, and overcharge protection.
• Adjustable Parameters: User-adjustable settings for charge and discharge cut-off voltages.

2.2 Controller Components

The Walfront Solar Controller features a clear LCD display and intuitive buttons for easy operation. Refer to the image below for a visual guide to the controller's main components and display elements.

3. Setup and Installation

Proper installation is crucial for the safe and efficient operation of your solar system. Please follow these steps carefully.

3.1 Safety Precautions

• Ensure all connections are tight and secure to prevent loose connections that can cause excessive heat.
• Install the controller in a well-ventilated area, away from direct sunlight and moisture.
• Always connect the battery first, then the solar panel, and finally the load. Disconnect in the reverse order.
• Use appropriate wire gauges for your system's current to avoid overheating.

3.2 Wiring Diagram

Connect the components in the following order: 1. Battery, 2. Solar Panel, 3. DC Load (if applicable). Refer to the diagram below for correct wiring.

1. Connect the Battery: Connect the positive and negative terminals of the battery to the corresponding battery terminals on the solar controller. The controller will automatically detect the battery voltage (12V or 24V).
2. Connect the Solar Panel: Connect the positive and negative terminals of the solar panel to the corresponding solar panel terminals on the controller.
3. Connect the DC Load (Optional): Connect the positive and negative terminals of your DC load to the corresponding load terminals on the controller.

Important: Always ensure correct polarity when making connections. Incorrect polarity can damage the controller and other components.

4. Operating Instructions

The Walfront Solar Controller features an intuitive LCD display and three buttons for easy navigation and parameter adjustment.

4.1 LCD Display Information

The LCD screen displays various system parameters:

• Voltage (V): Current system voltage.
• Current (A): Charging or discharging current.
• Battery State of Charge (%): Visual representation of battery level.
• Solar Panel Charge Indicator: Shows when solar panels are charging the battery.
• Load Indicator: Shows when the load is active.
• Hour: Indicates timer settings for the load.

4.2 Button Functions

• MENU Button: Press to cycle through display modes and enter/exit parameter setting mode.
• UP Button: Used to increase values or navigate upwards in menus.
• DOWN/ON/OFF Button: Used to decrease values, navigate downwards in menus, or toggle the DC load on/off (long press).

4.3 Parameter Settings

To adjust parameters such as discharge cut-off voltage or charging recovery voltage:

1. Press and hold the MENU button for a few seconds until the display starts flashing.
2. Use the UP and DOWN buttons to navigate through the different parameters.
3. Press the MENU button again to select a parameter for adjustment.
4. Use the UP and DOWN buttons to change the value.
5. Press and hold the MENU button again to save the changes and exit the setting mode.

The controller will remember user-set parameters even after battery depletion, eliminating the need for frequent resets.

4.4 USB Output

The two USB ports provide 5V 2.5A (maximum) output for charging compatible electronic devices. These ports are active when the controller is powered.

5. Maintenance

Regular maintenance ensures the longevity and optimal performance of your solar controller.

• Inspect Connections: Periodically check all wiring connections for tightness and corrosion. Loose connections can lead to power loss or overheating.
• Clean the Controller: Keep the controller free from dust and debris. Use a dry, soft cloth to wipe the casing and display. Do not use liquid cleaners.
• Ventilation: Ensure the installation area remains well-ventilated to prevent overheating of the controller.
• Battery Health: Monitor your battery's health and ensure it is properly maintained according to its manufacturer's guidelines.

6. Troubleshooting

If you encounter issues with your Walfront Solar Controller, refer to the following common problems and solutions:

• No Display/No Power:
  • Check battery connections and ensure correct polarity.
  • Verify battery voltage is within the operating range (12V/24V).
• Battery Not Charging:
  • Ensure solar panel connections are secure and have correct polarity.
  • Check if solar panels are receiving sufficient sunlight.
  • Verify solar panel voltage is above the battery voltage.
• Load Not Working:
  • Check load connections and ensure correct polarity.
  • Verify the load is not exceeding the controller's rated current.
  • Check if the battery voltage is above the discharge cut-off voltage.
  • Ensure the load output is enabled (long press DOWN/ON/OFF button).
• Overcharge/Over-discharge Protection Active:
  • The controller automatically protects the battery. Allow the system to recover naturally or adjust parameters if necessary (refer to Section 4.3).

If problems persist, contact customer support for further assistance.

7. Specifications

8. Warranty and Support

For warranty information or technical support, please refer to the documentation provided with your purchase or contact Walfront customer service through your retailer. Ensure you have your product model number (Walfrontfcknxro1w327752-11) and purchase details available when seeking support.