Epever Tracer3215BN MPPT Solar Charge Controller User Manual

1. Product Overview

The Epever Tracer-BN series MPPT solar charge controller, including the Tracer3215BN model, is designed for advanced solar power systems. It features a common negative design, an advanced Maximum Power Point Tracking (MPPT) control algorithm, and a durable die-cast aluminum heat dissipation case. The integrated Modbus communication protocol with an RS485 interface allows for extended applications in various settings such as telecommunication base stations, household systems, RV systems, street lighting systems, and field monitoring systems.

2. Key Features

• MPPT tracking efficiency above 99.5%
• Maximum charge conversion efficiency as high as 98%
• Multiple load work modes for diverse applications
• Real-time energy statistics function
• Battery type selection: Sealed, Gel, Flooded, and User-programmable
• Extensive electronic protection mechanisms
• Standard Modbus communication protocol with RS485 interface
• Robust die-cast aluminum case design for durability and heat dissipation

3. Product Components

The Tracer3215BN controller features clearly labeled terminals for PV input, battery connection, and load output, along with a communication port.

4. Technical Specifications (Tracer3215BN)

The following table details the technical specifications for the Tracer3215BN model, part of the Tracer-BN series.

Note: The voltage point is for a 12V system; multiply by 2 for a 24V system.

5. Installation and Setup

5.1 Safety Precautions

• Ensure all wiring is done by qualified personnel.
• Do not remove the cover; there are no user-serviceable parts inside.
• This equipment is designed for DC voltage to DC equipment.
• Always disconnect power sources before making or breaking connections.

5.2 Mounting

• Mount the controller vertically on a wall or other suitable surface.
• Ensure adequate air circulation around the controller for proper heat dissipation. Avoid mounting in enclosed spaces without ventilation.
• Keep the controller away from flammable materials, corrosive gases, and direct sunlight.

5.3 Wiring Sequence

Follow this sequence carefully to avoid damage to the controller or other components:

1. Connect the Battery: Connect the battery to the controller's battery terminals (BATT). Ensure correct polarity (positive to positive, negative to negative). The controller will detect the system voltage (12V or 24V) automatically.
2. Connect the Solar Panel (PV): Connect the solar panel array to the controller's PV terminals. Ensure correct polarity. The controller will begin charging the battery.
3. Connect the DC Load (Optional): Connect the DC load to the controller's load terminals. Ensure correct polarity.
4. Connect Communication Cable (Optional): If using the Modbus communication feature, connect the RS485 (RJ45) cable to the COM port.

WARNING: Never connect the solar panel array to the controller without a battery connected first. This can cause damage to the controller.

6. Operating Instructions

6.1 Initial Power-Up

Once all connections are secure and correctly wired, the controller will power on automatically. Observe the indicator lights for proper operation. The controller will automatically detect the system voltage (12V/24V) and begin the MPPT charging process.

6.2 Battery Type Selection

The Tracer3215BN supports various battery types: Sealed, Gel, Flooded, and User-programmable. Refer to the controller's display or accompanying software (if applicable) to select the appropriate battery type for optimal charging and battery longevity. Incorrect battery type settings can lead to undercharging or overcharging.

6.3 Load Work Modes

The controller offers multiple load work modes to manage the DC output. These modes typically include:

• Manual Control: Turn the load on or off manually.
• Light Control: Load turns on at dusk and off at dawn.
• Light Control + Timer: Load turns on at dusk and stays on for a set duration.
• Dual-Time Control: Allows for two separate timer periods.
• Test Mode: For system testing.

Consult the controller's interface or communication software for detailed instructions on configuring load work modes.

6.4 Real-time Energy Statistics

The controller provides real-time energy statistics, allowing users to monitor power generation from solar panels, battery charge/discharge status, and load consumption. This data can be accessed via the controller's display or through the Modbus communication interface with compatible software.

7. Maintenance

Regular maintenance ensures the longevity and optimal performance of your Tracer3215BN solar charge controller.

• Cleanliness: Periodically clean the exterior of the controller with a dry cloth. Ensure ventilation openings are free from dust and debris.
• Connections: Annually check all wiring connections for tightness and corrosion. Loose connections can lead to power loss or overheating.
• Environment: Ensure the installation environment remains within the specified operating temperature range (-35°C to +55°C) and relative humidity (≤95% N.C.).
• Inspection: Visually inspect the controller for any signs of damage, such as cracks, discoloration, or unusual odors.
• No User Serviceable Parts: As stated in the safety warnings, the controller contains no user-serviceable parts. Do not attempt to open or repair the unit yourself. Refer servicing to qualified service personnel.

8. Troubleshooting

If you encounter issues with your Tracer3215BN controller, consider the following basic troubleshooting steps:

• No Power/Display:
  • Check battery connections and ensure they are secure and have correct polarity.
  • Verify battery voltage is within the acceptable range (8-32V).
• No Charging from PV:
  • Ensure solar panel connections are secure and have correct polarity.
  • Check PV open circuit voltage and ensure it is within the controller's limits (Max. 150V).
  • Verify there is sufficient sunlight reaching the solar panels.
• Load Not Working:
  • Check load connections and polarity.
  • Ensure the battery has sufficient charge. The controller will disconnect the load if battery voltage is too low.
  • Verify the selected load work mode is appropriate (e.g., not in "off" mode).
  • Check for overcurrent protection; if the load draws too much current, the controller may shut off the output.
• Unusual Behavior:
  • Ensure the correct battery type is selected in the controller settings.
  • Check for any error codes or indicators on the controller's display.

For persistent issues or complex problems, please contact Epever customer support or your local dealer.

9. Warranty and Support

The Epever Tracer3215BN MPPT Solar Charge Controller is CE certified, indicating compliance with European safety, health, and environmental protection requirements.

For warranty information, technical support, or service inquiries, please contact the vendor or manufacturer directly. Keep your purchase receipt and product serial number handy when seeking support.