1. Introduction
The Y&H MPPT Solar Charge Controller is an advanced maximum power point tracking (MPPT) device designed to optimize the power output from your solar panels to efficiently charge your battery bank. It features high tracking efficiency, multiple protection functions, and a user-friendly interface, making it suitable for various solar power applications including charger control, voltage regulation, lighting control, and solar working stations.
2. Safety Information
Please read all instructions and warnings carefully before installation and operation. Improper installation or use can result in serious injury or damage to the controller and other components.
- Ensure all wiring is correctly polarized and securely connected.
- Always connect the battery first, then the solar panel, and finally the load. Disconnect in reverse order.
- 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 flammable materials and direct sunlight.
- Ensure the system voltage and current ratings are within the controller's specifications.
- Wear appropriate personal protective equipment (PPE) during installation.
3. Product Overview
The Y&H MPPT Solar Charge Controller features a robust industrial-style design for durability and ease of use. It incorporates a color LCD screen for clear visuals and intuitive operation, concealed wiring for a clean installation, high-efficiency cooling fans for silent operation, and a metal shell for optimal heat dissipation.
4. Technical Specifications
| Reference Name | Parameter Value |
|---|---|
| Model | QM-50, QM-60, QM-80, QM-100, QM-120 |
| System Voltage | 24V/36V/48V/60V/72V/84V/96V/Auto |
| Battery Type | FLD / GEL / SLD / LI / USER |
| No-load loss | ≤0.4W |
| Max solar input voltage | 480V (25℃), 460V (-25℃) |
| Battery voltage | 20-192V |
| Rated charging current | 50A, 60A, 80A, 100A, 120A |
| Rated load current | 40A |
| Load operating mode | ①Light control ②Light control + time control ③Manual control (default) ④Debug mode ⑤Normally open |
| Max photovoltaic system input power | 1200W/24V, 1440W/24V, 1920W/24V, 2400W/24V, 2880W/24V 1800W/36V, 2160W/36V, 2880W/36V, 3600W/36V, 4320W/36V 2400W/48V, 2880W/48V, 3840W/48V, 4800W/48V, 5760W/48V 3000W/60V, 3600W/60V, 4800W/60V, 6000W/60V, 7200W/60V 3600W/72V, 4320W/72V, 5760W/72V, 7200W/72V, 8640W/72V 4200W/84V, 5040W/84V, 6720W/84V, 8400W/84V, 10080W/84V 4800W/96V, 5760W/96V, 7680W/96V, 9600W/96V, 11520W/96V |
| Conversion efficiency | ≤98% |
| MPPT tracking efficiency | ＞99% |
| Temperature compensation factor | -2mv/℃/2V (default) |
| Operating temperature | -10℃～+65℃ |
| Waterproof grade | IP21 |
| Net weight | 3.85kg (QM-50/60), 4.5kg (QM-80/100), 5.7kg (QM-120) |
| Gross weight | 4.5kg (QM-50/60), 5.2kg (QM-80/100), 6.5kg (QM-120) |
| Electromagnetic compatibility | EN61000, EN55022, EN55024 |
| Communication method | RS485 (optional WiFi) |
| Altitude | ≤3000m |
| Product size | 247x305x106mm (QM-50/60), 286x365x106mm (QM-80/100/120) |
Additional Properties:
- Is Smart Device: Yes
- Customization: Yes
- Certification: CE
5. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your solar charge controller. Follow these steps carefully:
5.1. Mounting the Controller
Mount the controller vertically on a non-flammable surface in a well-ventilated area. Ensure there is sufficient clearance around the unit for proper airflow and cooling. The metal shell is designed for heat dissipation, but good ventilation is still essential.
5.2. Wiring Connections
The controller features large cross-section wiring ports to enhance insulation and ensure secure connections. Always follow the specified connection sequence to prevent damage to the controller or other components.
- Connect the Battery: Connect the positive and negative terminals of your battery bank to the 'BATTERY' terminals on the controller. Ensure correct polarity.
- Connect the Solar Panel: Connect the positive and negative terminals of your solar panel array to the 'SOLAR' terminals on the controller. Ensure correct polarity and that the PV input voltage does not exceed the maximum specified.
- Connect the DC Load: If using a DC load directly from the controller, connect its positive and negative terminals to the 'LOAD' terminals.
The wiring installation adopts a concealed design. Simply remove the bottom cover, connect the wiring, and then tighten the screws and replace the bottom cover upon completion of installation.
6. Operation
6.1. LCD Display and Buttons
The controller features a color LCD screen that provides real-time system information. Use the 'ESC' and 'SET' buttons, along with the up and down arrows, to navigate through menus and adjust settings.
6.2. System Voltage Auto-Recognition
The controller automatically recognizes system voltages including 12V, 24V, 36V, 48V, 60V, 72V, 84V, and 96V. It is compatible with multiple battery types such as Ternary Lithium (LIT1), Lithium Iron Phosphate (LIT2), and Lead-Acid (BAT) batteries.
6.3. Load Operating Modes
The controller supports several load operating modes:
- Light control: Load turns on/off based on ambient light levels.
- Light control + time control: Load turns on/off based on light levels and remains on for a set duration.
- Manual control (default): Load is controlled manually via the controller interface.
- Debug mode: For testing and troubleshooting.
- Normally open: Load is always on.
6.4. WiFi Functionality (Optional)
For models equipped with WiFi, the controller can be monitored and controlled remotely. Refer to the specific WiFi module instructions for connection and setup details.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your solar charge controller:
- Cleanliness: 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 power loss.
- Ventilation: Ensure that the cooling fans and ventilation openings are not obstructed.
- Firmware: Check for any available firmware updates from the manufacturer to ensure optimal performance and bug fixes.
8. Troubleshooting
If you encounter issues with your Y&H MPPT Solar Charge Controller, refer to the following common problems and solutions:
- No Power/Display: Check battery connections and ensure the battery voltage is within the operating range. Verify the main power switch (if applicable) is on.
- No Charging: Ensure solar panels are connected correctly and receiving sufficient sunlight. Check PV input voltage and current. Verify battery type settings are correct.
- Load Not Working: Check load connections and ensure the load operating mode is set correctly (e.g., not in light control mode during the day if you expect it to be on). Check for overload protection activation.
- Error Codes: If the LCD displays an error code, consult the full product manual (if available) or contact customer support with the specific code.
- Overheating: Ensure adequate ventilation around the controller. Check if cooling fans are operating correctly. Reduce load if necessary.
9. User Tips
- WiFi Connection: For models with optional WiFi, ensure you follow the specific instructions provided with the WiFi module for initial setup and connection to your network. This typically involves downloading a dedicated app and pairing the device.
- Battery Type Selection: Always ensure the correct battery type is selected in the controller settings to prevent overcharging or undercharging, which can damage your batteries.
- System Sizing: While the controller supports a wide range of voltages and currents, ensure your solar panel array and battery bank are appropriately sized for your energy needs and the controller's maximum input/output capabilities.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt and product model number handy for faster assistance.