1. Introduction
The EPEVER TRIRON series controllers are modular-designed products based on advanced MPPT (Maximum Power Point Tracking) solar charge controller technology. The main unit (Power Module), designated as TRIRON-N, functions as a solar controller and can be integrated with various display and interface modules to meet diverse functional requirements. TRIRON N series controllers automatically identify and load the drivers of different modules, offering flexibility and expandability.
Featuring an advanced MPPT control algorithm, these controllers minimize maximum power point loss rate and time, quickly tracking the maximum power point of the PV array to extract maximum energy from solar modules under all conditions. This can increase energy utilization in solar systems by 20%-30% compared to traditional PWM charging methods.
With an adaptive three-stage charging mode based on a digital control circuit, TRIRON N series controllers effectively prolong battery lifespan, significantly improve system performance, and provide comprehensive electronic protection functions, including overcharging and over-discharging protection. This design minimizes damage to system components from incorrect installation or system failure, ensuring safer and more reliable operation of the solar power supply system for extended service life. These modular solar controllers are suitable for various applications such as communication base stations, household systems, street lighting systems, and field monitoring.
2. Key Features
- Automatic identification and loading of various module drivers.
- Modular design for easy combination and replacement of components.
- Advanced MPPT control algorithm for minimal MPP loss rate and time.
- High MPPT technology efficiency, typically no less than 99.5%.
- Maximum DC/DC conversion efficiency of 98%.
- Ultra-fast tracking speed and guaranteed tracking efficiency.
- Automatic limitation of charging power and current.
- Wide MPP operating voltage range.
- Multiple load work modes for various applications.
- Support for lead-acid and lithium batteries with necessary temperature compensation.
- Real-time energy statistics function.
- Overheating power reduction function to protect the device.
- LCD and indicators to display operating data and system status.
- User-friendly buttons for comfortable and convenient operation.
- Master and slave RS485 communication modules for reading load or inverter operating data.
- Ability to control inverter switch through the relay interface.
- Dual USB output interface (5VDC, Max. 2.2A) for charging electronic devices.
3. Product Components and Interfaces
The TRIRON series controller features a modular design, allowing for customization with different display and interface modules. Key components and their functions are outlined below:
| No. | Item | No. | Item |
|---|---|---|---|
| ① | Mounting Hole Φ5mm | ⑤ | PV Terminals |
| ② | Display Module | ⑥ | Battery Terminals |
| ③ | Interface Module | ⑦ | Load Terminals |
| ④ | RTS® Interface |
Note: If the temperature sensor is short-circuited or damaged, the controller will charge or discharge at the default temperature setting of 25°C.
Display Module (DS2)
The DS2 display module provides a black-light LCD for clear visibility of system parameters and status. It includes intuitive buttons for navigation and settings adjustment.
Interface Module (UCS)
The UCS (USB COM Slave) interface module provides connectivity for external devices, including dual USB ports for charging and an RS485 port for communication with other system components or monitoring devices.
| Module Name | Photo | Self-Consumption | Dimension |
|---|---|---|---|
| DS2 |  |
4mA | 88.5×56×23.1mm |
| UCS | |
6.5mA | 88.5×28×19.2mm |
4. Technical Specifications
| Item | TRIRON1210N | TRIRON2210N | TRIRON3210N | TRIRON4210N |
|---|---|---|---|---|
| System nominal voltage | 12/24VDC Auto | |||
| Rated charge current | 10A | 20A | 30A | 40A |
| Rated discharge current | 10A | 20A | 30A | 40A |
| Battery voltage range | 8-32V | |||
| Max. PV open circuit voltage | 100V | |||
| Max. PV input power | 130W(12V System) 260W(24V System) |
260W(12V System) 520W(24V System) |
390W(12V System) 780W(24V System) |
520W(12V System) 1040W(24V System) |
| Self-consumption | ≤14mA(12V); ≤15mA(24V) | |||
| Discharge circuit voltage drop | ≤0.18V | |||
| Temperature compensate | -3mV/°C/2V (Default) | |||
| Grounding | Common negative | |||
| RS485 interface | 5VDC/100mA | |||
| USB interface | 5VDC/2.2A (Total) | |||
| Relay interface | 30VDC/1A | |||
| Backlight time | Default 60s, Range: 0-999s (0s: the backlight is ON all the time) | |||
| Environmental Parameters | ||||
| Working environment temperature | -25°C ~ +55°C | |||
| Storage temperature range | -20°C ~ +70°C | |||
| Relative humidity | ≤95%, N.C | |||
| Enclosure | IP30 | |||
| Mechanical Parameters | ||||
| Dimension | 135×180.8×47.3mm | 150×216×56.7mm | 158×238.3×62.7mm | 183×256.8×66.7mm |
| Mounting dimension | 126×150mm | 141×170mm | 158×200mm | 174×220mm |
| Mounting hole size | Φ5mm | |||
| Terminal | 12AWG(4mm²) | 6AWG(16mm²) | 6AWG(16mm²) | 6AWG(16mm²) |
| Recommended cable | 12AWG(4mm²) | 10AWG(6mm²) | 8AWG(10mm²) | 6AWG(16mm²) |
5. Installation and Setup
Before installation, ensure all components are present and undamaged. Mount the controller in a well-ventilated area, away from direct sunlight and moisture. Follow the wiring sequence carefully to prevent damage to the controller or other system components.
5.1 Wiring Diagram
5.2 Connection Steps
- Connect the Battery: Connect the battery to the controller's battery terminals (⑥). Ensure correct polarity. The controller will detect the system voltage (12V or 24V) automatically.
- Connect the Solar Panel: Connect the solar panel to the controller's PV terminals (⑤). Ensure correct polarity.
- Connect the Load: Connect the DC load to the controller's load terminals (⑦). Ensure correct polarity.
- Connect Optional Accessories: If using an external temperature sensor (RTS® Interface ④), connect it to the designated port. Connect any communication modules (e.g., UCS for USB/RS485) or remote meters (e.g., MT50) as per their respective manuals.
Important: Always connect the battery first, then the solar panel, and finally the load. Disconnect in the reverse order: load, then solar panel, then battery.
6. Operating Instructions
The TRIRON controller features an intuitive LCD display and buttons for monitoring and configuration. The display module (DS2) allows you to view real-time data and adjust settings.
6.1 LCD Display and Navigation
The LCD cycles through various screens displaying critical system information such as PV voltage, battery voltage, charging current, load status, and energy statistics. Use the buttons below the display to navigate and adjust settings:
- PV/+ Button: Used to scroll forward through display screens or increase values during setting.
- BATT/- Button: Used to scroll backward through display screens or decrease values during setting.
- LOAD/- Button: Used to turn the load ON/OFF manually or navigate menus.
- SET Button: Used to enter/exit setting mode or confirm selections.
- ON/ESC Button: Used to exit setting mode without saving changes or to turn the controller ON/OFF (if applicable).
6.2 Battery Type Setting
The controller supports various battery types (e.g., Sealed, Gel, Flooded, User-defined). It is crucial to set the correct battery type for optimal charging and battery longevity. Refer to the detailed manual for specific steps on how to enter the battery setting menu and select your battery type.
6.3 Load Control Modes
The TRIRON series offers multiple load work modes, including manual control, light control, light control with timer, and dual-time control. These modes can be configured via the display module to suit your application's needs.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your solar charge controller and overall system.
- Cleaning: Keep the controller clean and free from dust and debris. Use a dry cloth for cleaning.
- Connections: Periodically check all wiring connections for tightness and corrosion. Loose connections can cause overheating and damage.
- Ventilation: Ensure the controller's ventilation openings are not blocked to allow for proper heat dissipation.
- Battery Inspection: Regularly inspect your batteries for any signs of damage, swelling, or leakage. Ensure battery terminals are clean.
- Firmware Updates: Check the EPEVER website for any available firmware updates for your controller model to ensure you have the latest features and bug fixes.
Safety Precaution: Before performing any maintenance, disconnect all power sources (solar panel, battery, and load) from the controller.
8. Troubleshooting
This section provides solutions to common issues you might encounter with your TRIRON solar charge controller.
| Problem | Possible Cause | Solution |
|---|---|---|
| No display/Controller not powering on | Battery not connected or low voltage; reversed polarity; loose connection. | Check battery connections and voltage. Ensure correct polarity. Tighten all connections. |
| Battery not charging | Solar panel not connected; insufficient sunlight; PV voltage too low/high; faulty solar panel. | Check solar panel connections. Ensure adequate sunlight. Verify PV voltage is within range (8-100V). Test solar panel output. |
| Load not working | Load disconnected; load overcurrent; battery low voltage disconnect; load control mode setting. | Check load connections. Reduce load if overcurrent. Check battery voltage. Adjust load control mode settings. |
| Inaccurate temperature reading | External temperature sensor (RTS) not connected or faulty. | Ensure RTS is properly connected. If damaged, replace it. Controller will use default 25°C if RTS is faulty. |
9. User Tips
- Model Differences: The TRIRON series includes models like TRIRON3210N, TRIRON4210N, and TRIRON4215N. The primary difference lies in their rated charge current and maximum PV input power. For example, TRIRON3210N is 30A, while TRIRON4210N and TRIRON4215N are 40A, with varying PV input power capacities for 12V/24V systems. Always select the model that matches your system's current and power requirements.
- Modular Flexibility: Take advantage of the modular design. If you need advanced monitoring, consider adding an MT50 remote meter or an eBox-WIFI-01 module for smartphone app integration.
- Cable Sizing: Use the recommended cable sizes as specified in the technical specifications table (Table 3) to minimize voltage drop and ensure safe operation.
- Battery Compatibility: Ensure your battery type is correctly configured in the controller settings to optimize charging and extend battery life.
10. Warranty and Support
EPEVER products are designed for reliability and performance. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official EPEVER website. Technical support is available through authorized distributors and the manufacturer's customer service channels.
For further assistance, please contact your local dealer or EPEVER customer support with your product model and serial number.
