1. Увод
The Walfront MPPT Solar Charge Controller is designed to efficiently manage power flow from your solar panels to your battery bank, optimizing charging performance for off-grid solar systems. This manual provides essential information for the safe and effective installation, operation, and maintenance of your 50A MPPT solar charge controller.

Image 1.1: Walfront MPPT Solar Charge Controller 50A. This image shows the front view of the orange and black controller, featuring an LCD screen displaying PV, Battery, and Load information, along with 'ESC' and 'SET' buttons.
2. Кључне карактеристике
- High Efficiency MPPT Tracking: Features MPPT tracking efficiency greater than 99% and a maximum conversion efficiency of up to 98%, maximizing energy harvest from solar panels.
- Wide 180V PV Input and Auto Voltagе-признање: Supports a maximum solar input voltage of 180V (at 25℃) and automatically recognizes 12V, 24V, 36V, and 48V battery systems. Compatible with battery voltagес од 9В до 64В.
- Clear LCD Display and Smart Protection: Built-in LCD provides real-time system data (voltage, current, operating status). Includes temperature compensation and multiple protection features for safe operation.
- Low No-Load Loss and Reliable Performance: No-load loss of ≤0.4W conserves energy. Designed for reliable operation in temperatures from -10℃ to 65℃ and altitudes up to 3000 meters.
- Лако се инсталира и користи: Auto-recognition feature simplifies setup. Compact design allows for straightforward mounting.

Image 2.1: Automatic Voltage Identification. This image highlights the controller's ability to automatically identify 12V, 24V, 36V, and 48V systems, shown with various solar panel application exampлес.
3. Безбедносне информације
Please read all instructions carefully before installation and operation. Failure to follow these safety guidelines may result in personal injury, damage to the controller, or other equipment.
- Ensure all wiring is correctly polarized and securely connected. Loose connections can cause overheating and damage.
- Увек прво повежите батерију, затим соларни панел, и на крају оптерећење. Искључите обрнутим редоследом.
- Do not connect the solar panel array to the controller without a battery connected.
- Уверите се да систем волtage of the solar panel and battery are compatible with the controller's specifications.
- Инсталирајте контролер у добро проветреном простору, даље од запаљивих материјала и директне сунчеве светлости.
- Avoid touching live terminals. Use insulated tools during installation.
- This device is not waterproof. Protect it from moisture and water exposure.
4. Садржај пакета
Проверите да ли су све ставке наведене у наставку укључене у ваш пакет:
- 1 x Walfront MPPT Solar Charge Controller (50A)
- 4 к завртњи
- 4 x експанзионих шрафова
- 1 x Упутство за употребу (овај документ)

Image 4.1: Package Contents. This image displays the solar charge controller alongside the mounting screws and expansion screws provided in the package.
5. Подешавање и инсталација
Follow these steps for proper installation of your solar charge controller.
5.1 Монтажа контролера
- Choose a dry, well-ventilated location, protected from direct sunlight, high temperatures, and moisture.
- Ensure there is sufficient space around the controller for heat dissipation, especially around the cooling fins.
- Mount the controller vertically on a solid surface using the provided screws.
5.2 Ожичење
Refer to the wiring diagrams below for correct connection sequence. Always connect in the following order:
- Повежите батерију: Connect the battery to the controller's battery terminals. Ensure correct polarity (+ to + and - to -). The controller will automatically detect the battery voltage.
- Повежите соларну плочу: Connect the solar panel array to the controller's PV terminals. Ensure correct polarity.
- Повежите једносмерно оптерећење (опционо): Connect the DC load to the controller's load terminals. Ensure correct polarity.
To disconnect the system, follow the reverse order: disconnect load, then solar panel, then battery.

Image 5.1: Basic System Connection Diagram. This diagram illustrates the connection order: 1. Battery Assembly, 2. Solar Panel Assembly, 3. DC Load. It also shows an AC Load and Inverter connected to the Battery Assembly.

Image 5.2: Detailed System Wiring Diagram. This diagram provides a more comprehensive view of a solar power system, including solar panels, battery, inverter (AC Output/Input), and various AC loads like laptops, lights, air conditioners, televisions, and fans.
6. Упутство за употребу
The controller features an LCD display and control buttons for monitoring and configuration.
КСНУМКС ЛЦД екран
The LCD screen provides real-time information about your solar system, including:
- PV (Photovoltaic) Status: Инпут волtage, current, and power from solar panels.
- BATT (Battery) Status: Баттери волtage, charging current, and state of charge.
- LOAD Status: Output current and power to the DC load.
- Систем Волtage: Automatically detected battery system voltagе (12V/24V/36V/48V).
- Индикатори грешке: Displays fault codes or warnings if issues occur.
6.2 Контролна дугмад
The controller has three buttons: ESC, Up/Down arrows, and SET.
- ЕСЦ дугме: Used to exit current menu or cancel an operation.
- Дугмад за горе/доле: Used to navigate through menu options or adjust parameter values.
- СЕТ дугме: Used to enter a menu, confirm a selection, or save changes to parameters.

Image 6.1: Control Buttons. This close-up image shows the 'ESC', 'Up arrow', 'Down arrow', and 'SET' buttons on the controller's front panel.
7. Одржавање
Regular maintenance ensures optimal performance and longevity of your solar charge controller.
- Чишћење: Periodically clean the controller's exterior with a dry cloth. Ensure the cooling fins are free from dust and debris to maintain proper heat dissipation.
- Везе: Check all wiring connections regularly to ensure they are tight and free from corrosion.
- инспекција: Inspect the controller for any signs of physical damage, overheating, or unusual odors.
- Окружење: Ensure the installation environment remains dry and well-ventilated.

Image 7.1: Cooling Fins. This close-up shows the cooling fins on the top of the controller, which are crucial for heat dissipation and require regular cleaning.
КСНУМКС. Решавање проблема
If you encounter issues with your controller, refer to the following common problems and solutions:
| Проблем | Могући узрок | Решење |
|---|---|---|
| Екран контролера је искључен | Није повезана батерија или је батерија напуњенаtagе прениско. | Ensure battery is connected correctly and has sufficient charge (above 9V). |
| No charging current from PV | Solar panels not connected, insufficient sunlight, or PV polarity reversed. | Check PV connections and polarity. Ensure adequate sunlight. Verify PV voltagе је у домету. |
| Учитавање не ради | Load disconnected, load current too high, or load polarity reversed. | Check load connections and polarity. Ensure load current does not exceed controller's rating. |
| Батерија није потпуно напуњена | Insufficient solar input, undersized solar array, or battery issues. | Increase solar panel capacity or check for shading. Inspect battery health. |
9. Техничке спецификације
Below are the technical specifications for the Walfront MPPT Solar Charge Controller 50A.
| Параметар | Спецификација |
|---|---|
| Систем Волtage | 12V / 24V / 36V / 48V Auto |
| Називна струја пуњења | 50А |
| No Load Loss | ≤0.4В |
| Solar Maximum Input Voltage | 180V (at 25℃), 150V (at -25℃) |
| Баттери Волtagе Распон | 9-64В |
| Макимум Повер Поинт Волtagе Распон | Баттери Волtagе +2В до 150В |
| Ефикасност конверзије | ≤98% |
| МППТ ефикасност праћења | >99% |
| Коефицијент температурне компензације | -2mv/℃/2V (default value) |
| Радна температура | -10℃ до 65℃ |
| Степен заштите | ИП21 |
| Висина | ≤3000 Meter / 9842.5ft |

Image 9.1: Model Comparison Table. This table provides a comparison of rated charging current and solar panel maximum input power for CM-50 (50A) and CM-60 (60A) models across different system voltagес.
10. Гаранција и подршка
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your purchase receipt as proof of purchase.