1. Product Overview
The Y&H MPPT Solar Charge Controller utilizes advanced Maximum Power Point Tracking (MPPT) technology, offering high conversion efficiency up to 97%. It is designed for solar systems and supports various battery types including sealed lead acid, vented gel, and lithium batteries.
Key features include:
- 100% MPPT technology for optimal power harvesting.
- Built-in DSP controller for high performance.
- Easy installation and setup.
- Automatic voltage detection for 12V/24V/36V/48V battery banks.
- 3-stage charging algorithm to optimize battery performance and prolong battery life.
- Comprehensive protection features.
- Troubleshooting promotion function.
- Suitable for various battery types (AGM, Gel, Flooded, Lithium).
- Programmable charging and discharging parameters.
2. Specifications
The Y&H MPPT Solar Charge Controller comes in 20A, 40A, and 60A variants. Detailed technical specifications are provided below:
| Feature | Specification |
|---|---|
| Brand Name | Y&H |
| Model Number | TM |
| Maximum Current | MPPT 20A/40A/60A |
| Application | Charger Controller, Voltage Controller, Lighting Controller, Solar System Controller, Solar Working Station |
| Nominal System Voltage | 12V/24V/36V/48V Auto |
| Max PV Input Voltage | 150VDC |
| Conversion Efficiency | ≤98% |
| MPPT Tracking Efficiency | >99% |
| Operating Temperature Range | -35℃ to +45℃ |
| Protection Class | IP32 |
| Is Smart Device | No |
3. Installation and Setup
Follow these steps for proper installation and setup of your Y&H MPPT Solar Charge Controller. Always ensure all power sources are disconnected before making any connections.
3.1 Connection Order
The correct connection order is crucial for safe and proper operation:
- Connect the battery.
- Connect the solar panel (photovoltaics).
- Connect the load.
When disconnecting the system, reverse the order: first disconnect the load, then the solar panel, and finally the battery.
3.2 Wiring Details
Ensure all cables are tightly connected to the controller. Remove any debris around the controller, leaving a space of approximately 5.91 inches for proper ventilation.
| Models | Copper Wires | AWG | Air Circuit Breakers |
|---|---|---|---|
| MPPT-20A | 6mm² | 10AWG | 43A |
| MPPT-30A | 10mm² | 8AWG | 60A |
| MPPT-40A | 16mm² | 6AWG | 80A |
| MPPT-50A | 25mm² | 4AWG | 100A |
| MPPT-60A | 35mm² | 2AWG | 120A |
For MPPT-30A and MPPT-40A, you can connect one wire to PV+ and another wire to PV-.
3.3 System Connection Video Guide
Watch this video for a visual guide on connecting your Y&H MPPT Solar Charge Controller:
4. Operating Instructions
4.1 Screen Interface Cycle
The controller's screen cycles through various parameters. You can adjust settings using the buttons.
The screen displays information such as PV voltage, battery voltage, load status, and fault indicators. Use the 'PRG ESC' and 'ENTER' buttons along with the up/down arrows to navigate and adjust settings.
Note: When the reading data of PV or Battery is constantly changing, do not worry. The controller is finding the MPPT point. If your PV input power or voltage is insufficient, please contact our technical team for assistance.
4.2 Charging Modes
The controller employs a 3-stage MPPT charging mode to optimize battery life:
- Bulk Charge: The initial stage where the battery is charged at its maximum current until its voltage rises to a set level.
- Constant Charging: The voltage is held constant while the current gradually decreases.
- Float Charge: The battery is maintained at a lower voltage to compensate for self-discharge and keep it fully charged.
Equalized charging, when applicable, reverses the build-up of negative chemical effects, removes sulfate crystals, and increases battery capacity, thereby prolonging battery lifecycle.
5. Protection Features
The Y&H MPPT Solar Charge Controller is equipped with 8 all-around protection mechanisms to ensure system safety and longevity:
- PV over current protection
- Battery over discharge protection
- PV short circuit protection
- Load over current protection
- PV Reverse Polarity protection
- Load short circuit protection
- Battery over voltage protection
- Over temperature protection
6. Troubleshooting
The controller includes a troubleshooting promotion function to assist in diagnosing issues. If you encounter problems, refer to the screen display for error codes or indicators.
Common issues and their potential solutions:
- No display/Power off: Check battery connections and voltage. Ensure the battery is connected first.
- PV not charging: Verify solar panel connections, ensure sufficient sunlight, and check PV input voltage against specifications.
- Load not working: Check load connections, ensure the load operating mode is correctly set, and verify battery charge level.
- Over-temperature warning: Ensure adequate ventilation around the controller. The aluminum alloy base is designed for heat dissipation, but obstructions can cause overheating.
If the issue persists, please contact Y&H customer support for further assistance.
7. Maintenance
To ensure optimal performance and longevity of your solar charge controller, follow these maintenance guidelines:
- Regular Inspection: Periodically check all wiring connections for tightness and corrosion.
- Cleanliness: Keep the controller clean and free from dust, dirt, and debris. Use a dry, soft cloth for cleaning.
- Ventilation: Ensure the area around the controller is well-ventilated to prevent overheating. Do not block the heat dissipation fins.
- Battery Health: Monitor your battery's health and ensure it is within its recommended operating parameters.
- Firmware Updates: Check the manufacturer's website for any available firmware updates to ensure your controller has the latest features and bug fixes.
8. User Tips
- Maximum Input Voltage: The maximum PV input voltage for this controller is 150VDC. Ensure your solar panel array's open-circuit voltage (Voc) does not exceed this limit, especially in cold weather conditions where Voc can increase.
- Battery Type Selection: Always select the correct battery type in the controller settings (e.g., AGM, Gel, Flooded, Lithium) to ensure proper charging algorithms are applied. Incorrect settings can damage your battery.
- USB Charging: The controller features dual USB ports for charging electronic devices. This is a convenient way to power small electronics directly from your solar system.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact Y&H customer service directly. Keep your purchase receipt as proof of purchase.
