Aramox 12V/24V 30A Intelligent Solar Charge Controller User Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Aramox 12V/24V 30A Intelligent Solar Charge Controller. This device is designed to manage power flow from your solar panel to your battery, ensuring efficient charging and protecting your battery from overcharge and over-discharge. It features an LCD display, dual USB ports, and automatic system voltage identification.

Figure 1: Front view of the Aramox 12V/24V 30A Intelligent Solar Charge Controller, showing the LCD screen, control buttons, USB ports, and connection terminals.

2. Safety Information

• Ensure all connections are correct and secure before powering on the system.
• Do not attempt to disassemble or repair the controller yourself. Contact qualified personnel for service.
• Install the controller in a well-ventilated area, away from direct sunlight, high temperatures, and moisture.
• The controller is designed for 12V/24V systems. Verify your battery and solar panel voltage compatibility.
• Observe correct polarity when connecting solar panels, battery, and load to prevent damage.

3. Product Features

• Automatic Identification: Automatically recognizes 12V/24V system voltage.
• LCD Display: Humanized LCD interface for displaying system parameters.
• 3-Stage Charging: High-efficiency intelligent charging mode.
• Dual USB Ports: Provides 2.4A *2 USB output for charging external devices.
• Load Control: Selectable load control modes and timer function for applications like street lighting.
• Temperature Compensation: Automatically corrects charging and discharging voltage based on temperature.
• Protection Features: Includes over-voltage, short-circuit, over-load, overcharge, and over-discharge protection.
• Data Storage: Records total run time, error timers, and full charge cycles.

4. Setup and Installation

4.1 Connection Method

Follow the connection sequence below to ensure proper and safe installation. Connect components in the order specified:

1. Connect the battery to the controller's battery terminals (marked with a battery symbol). Ensure correct polarity (+ to + and - to -).
2. Connect the solar panel to the controller's solar panel terminals (marked with a solar panel symbol). Ensure correct polarity.
3. Connect the load to the controller's load terminals (marked with a light bulb symbol). Ensure correct polarity.

Important: Always connect the battery first, then the solar panel, and finally the load. Disconnect in the reverse order.

Figure 2: Connection diagram illustrating how to connect the solar panel, battery, and load to the controller's terminals.

4.2 Physical Dimensions

Figure 3: Diagram showing the physical dimensions of the controller: 17.5cm (6.9in) length, 14cm (5.5in) width, and 4cm (1.6in) thickness.

5. Operating Instructions

5.1 LCD Display and Buttons

The controller features an LCD display that shows various system parameters such as voltage, current, and charge status. It has two control buttons for navigation and setting adjustments.

Figure 4: The controller's dual USB ports, capable of 2.4A Max output, suitable for charging mobile phones, driving recorders, cameras, and tablets.

5.2 Adjusting Voltage Settings

If you encounter issues or need to adjust the recovery discharge voltage (e.g., to 13.7V), follow these steps:

1. Press and hold the MCU control button (usually the left button) for approximately 3-4 seconds. This will bring up the management interface on the screen.
2. Press the 'add' button (usually the right button) repeatedly until the desired voltage, such as 13.7V, is displayed.
3. Press the MCU control button again. The display will stop flickering, indicating that the new setting has been saved.

5.3 Load Control Mode

The controller allows selection of different load control modes, including a timer function for night-time operation, useful for applications like street lights. Refer to the on-screen menu for specific options and adjustments.

6. Maintenance

• Regularly check all wiring connections for tightness and corrosion.
• Keep the controller clean and free from dust and debris. Use a dry cloth for cleaning.
• Ensure adequate ventilation around the controller to prevent overheating.
• Monitor the LCD display periodically to ensure the system is operating within normal parameters.

7. Troubleshooting

7.1 No Output / Battery Voltage Too Low

If the battery voltage is too low, the controller will stop the output to protect the battery. The output will resume once the solar panel has charged the battery to 12.6V (recovery discharge voltage).

• Check Battery Voltage: Verify the battery voltage using a multimeter.
• Check Solar Panel Connection: Ensure the solar panel is properly connected and receiving sunlight.
• Adjust Voltage Settings: If the recovery voltage is set too low, you may need to adjust it as described in Section 5.2. The normal operating voltage range for the controller is 10.7V to 13.7V.

7.2 Error Messages

The controller records errors during operation. If an error message appears on the LCD, consult the manual's specific error code section (if available) or contact customer support. Common issues include:

• Over-voltage protection
• Short-circuit protection
• Over-load protection
• Overcharge protection
• Over-discharge protection
• Reverse polarity connection

8. Specifications

9. Warranty and Support

For warranty information or technical support, please contact Aramox customer service through their official channels. You can visit the Aramox Store on Amazon for more information or to reach out for assistance.