EPEVER MPPT Solar Charge Controller Triron4210N User Manual

1. Introduction

The EPEVER MPPT Solar Charge Controller Triron4210N is an advanced Maximum Power Point Tracking (MPPT) controller designed for solar power systems. This 40A controller automatically detects 12V or 24V system voltages and supports a maximum PV input of 100V, handling up to 520W for 12V battery systems or 1040W for 24V battery systems. It features common negative grounding and is an upgraded version (Triron4210N DS2+UCS) compatible with various battery types, including Sealed, Gel (AGM), Flooded, LiFePO4, Li(NiCoMn)O2, and user-defined settings. It offers enhanced electronic protection features and can be integrated with different display and interface modules to meet diverse functional requirements.

2. Safety Instructions

• Always connect the battery first: Ensure the battery is connected to the controller before connecting solar panels or loads.
• Disconnect in reverse order: When disconnecting the system, always disconnect the PV array first, then the load, and finally the battery.
• System Voltage: For lithium battery types, the controller cannot auto-recognize the system voltage. Please confirm the system voltage (12V or 24V) before use.
• Equalize Charging: Equalize charging is not performed when the battery type is set to "lithium battery".
• Operating Environment: The controller is designed for full load operation within its specified working environment temperature range.
• Wiring: Ensure all wiring is correct and secure to prevent damage or hazards.

3. Product Overview

The Triron4210N controller is designed for robust performance and user-friendly operation. It features a clear LCD display, intuitive buttons, and multiple connection ports.

Figure 1: Front view of the EPEVER MPPT Solar Charge Controller Triron4210N, showing the LCD display, control buttons, and USB ports.

Figure 2: Back view of the EPEVER MPPT Solar Charge Controller Triron4210N, highlighting the heat sink for efficient thermal management.

Key Features:

• LCD Display: Provides real-time data on PV voltage/current, battery voltage/current/temperature/capacity, and load status.
• Control Buttons: Five buttons for easy navigation and parameter setting.
• Dual USB Output: Two 5VDC/2.2A USB ports for charging electronic devices.
• Common Negative Grounding: Ensures compatibility with various system configurations.
• Modular Design: The Triron series is modular-designed, allowing integration with different display and interface modules (DS2+UCS included in this model).
• Heat Sink: Integrated heat sink for better heat dissipation.

4. Setup and Installation

Proper installation is crucial for the safe and efficient operation of your solar charge controller. Follow these steps carefully.

Wiring Diagram:

Figure 3: A typical solar system connection diagram showing the MPPT controller, PV panel, battery, DC load, and inverter for AC load. Note the connection order: Battery → Load → PV Array.

Connection Steps:

1. Connect the Battery: Connect the battery to the controller's battery terminals. Ensure correct polarity (+ to + and - to -). This is the first and most critical step.
2. Connect the Load: Connect your DC loads to the controller's load terminals. Ensure correct polarity.
3. Connect the PV Array: Connect the solar panels to the controller's PV terminals. Ensure correct polarity.

Important: For safety, circuit breaker connections are recommended for all connections.

Disconnection Steps:

To disconnect the system, follow the reverse order of connection:

1. Disconnect the PV Array.
2. Disconnect the Load.
3. Disconnect the Battery.

5. Operating Instructions

The Triron4210N controller features an intuitive LCD display and five buttons for easy operation and monitoring.

LCD Display and Buttons:

Figure 4: The controller's browse interface showing various parameters and the steps to set battery types via the LCD.

• PV/+ Button: Used to browse PV parameters or increase values during setting.
• BATT/→ Button: Used to browse battery parameters or move right during setting.
• LOAD/- Button: Used to browse load parameters or decrease values during setting.
• SET Button: Used to enter setting mode or confirm selections.
• ESC Button: Used to exit setting mode or return to the previous menu.

Viewing Parameters:

Press the PV/+, BATT/→, or LOAD/- buttons to cycle through the respective parameters on the LCD display. The display will show real-time values such as voltage, current, power, and temperature.

6. Battery Type Configuration

The Triron4210N supports various battery types. It is essential to correctly configure the battery type for optimal charging and discharge management.

Setting Battery Type via LCD:

1. From the main display, press the SET button to enter the menu.
2. Navigate to the "Battery Type" option using the arrow buttons.
3. Press SET to select the battery type (e.g., Sealed, Gel, Flooded, LiFePO4, Li(NiCoMn)O2, User).
4. Press SET again to confirm and save your selection.

Note: For LiFePO4 and Li(NiCoMn)O2 batteries, the controller does not automatically identify the system voltage. You must manually select 12V or 24V for your lithium battery system.

Advanced Lithium Battery Parameters:

For detailed parameter settings for lithium batteries, optional accessories are required:

• MT50/MT52 Remote Meter
• WiFi/BLE Adapter via APP (Solar Guardian)
• PC software via RS485 interface (CC-USB-RS485-150U cable)

Figure 5: Reference table for lithium battery parameter settings, including Over Voltage Disconnect, Charging Limit, Boost Charge, and Float Charge voltages.

7. Load Working Mode

The Triron4210N offers multiple load working modes to suit different application needs:

• Manual Control: Turn the load ON or OFF manually.
• Light ON/OFF: Load turns ON at dusk and OFF at dawn.
• Light ON + Timer: Load turns ON at dusk and stays ON for a set duration.
• Time Control: Load operates during specific programmed times.

These modes can be configured using the controller's buttons or through external accessories like the MT50/MT52 remote meter or PC software.

8. Monitoring and Communication

The Triron4210N supports various accessories for real-time monitoring and remote control of your solar system.

Figure 6: Illustration of real-time remote monitoring capabilities using a mobile app via WiFi/Bluetooth adapter and PC software via RS485 or Serial Device Server.

Compatible Accessories:

• MT50/MT52 Remote Meter: Provides a comprehensive display of system parameters and allows for parameter adjustment.
• WiFi/BLE Adapter: Enables wireless monitoring and parameter configuration via a mobile app (Solar Guardian).
• RS485 Communication Cable (CC-USB-RS485-150U): Connects the controller to a PC for monitoring and configuration using EPEVER PC software.
• eLOG01: Data logger for recording system performance.

Video Tutorials:

9. Maintenance

Regular maintenance ensures the longevity and optimal performance of your EPEVER MPPT Solar Charge Controller.

• Visual Inspection: Periodically inspect the controller for any visible damage, loose connections, or corrosion.
• Cleanliness: Keep the controller clean and free from dust and debris. Ensure the heat sink is not obstructed to allow for proper cooling.
• Connection Check: Verify that all wire connections are tight and secure. Loose connections can cause overheating and damage.
• Battery Inspection: Regularly check the battery terminals for corrosion and ensure the battery itself is in good condition.

10. Troubleshooting

If you encounter issues with your Triron4210N controller, refer to the following general troubleshooting tips. For specific error codes or complex problems, consult the full user manual or contact technical support.

• No Display/Power: Check battery connections and ensure the battery voltage is within the operating range (8-32V).
• No Charging: Verify PV panel connections and ensure sufficient sunlight. Check PV open circuit voltage and current.
• Load Not Working: Check load connections, ensure the load is not overloaded, and verify the load working mode settings.
• Error Indicators: Refer to the LED indicators on the controller for specific error conditions (e.g., overvoltage, undervoltage, overheating).

11. Specifications

Technical data for the EPEVER MPPT Solar Charge Controller Triron4210N:

Figure 7: Electrical parameters table for the Triron series, including Triron4210N.

12. Warranty and Support

EPEVER products are backed by comprehensive support to ensure your satisfaction.

• Technical Support: Our US engineer team in Chicago is available to provide free technical support for off-grid solar system questions.
• Authorized Seller: GolandCentury is an official authorized sales agent for the EPEVER brand, offering the latest versions of controllers and accessories.
• Service Centers: GolandCentury has established warehouses and service centers in Chicago (USA), Munich (Germany), Toronto (Canada), and Melbourne (Australia) to provide local support.