1. 서론
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. 주요 특징
- 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 Voltage 인정: Supports a maximum solar input voltage of 180V (at 25℃) and automatically recognizes 12V, 24V, 36V, and 48V battery systems. Compatible with battery voltag9V ~ 64V입니다.
- 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.
- 설치 및 사용이 쉽습니다. 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 examp레.
3. 안전 정보
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.
- 배터리를 먼저 연결하고, 그 다음 태양광 패널을 연결한 후, 마지막으로 부하를 연결하십시오. 분리할 때는 역순으로 하십시오.
- Do not connect the solar panel array to the controller without a battery connected.
- 시스템 볼륨을 확인하세요tage of the solar panel and battery are compatible with the controller's specifications.
- 컨트롤러는 통풍이 잘 되는 곳에 설치하고, 가연성 물질과 직사광선을 피하세요.
- 활선 단자를 만지지 마십시오. 설치 시에는 절연 공구를 사용하십시오.
- This device is not waterproof. Protect it from moisture and water exposure.
4. 패키지 내용
아래 나열된 모든 품목이 패키지에 포함되어 있는지 확인하세요.
- 1 x Walfront MPPT Solar Charge Controller (50A)
- 4 x 나사
- 4 x 확장 나사
- 1 x 사용자 매뉴얼(이 문서)

Image 4.1: Package Contents. This image displays the solar charge controller alongside the mounting screws and expansion screws provided in the package.
5. 설정 및 설치
태양광 충전 컨트롤러를 올바르게 설치하려면 다음 단계를 따르십시오.
5.1 컨트롤러 장착
- 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 배선 연결
Refer to the wiring diagrams below for correct connection sequence. Always connect in the following order:
- 배터리를 연결하십시오: Connect the battery to the controller's battery terminals. Ensure correct polarity (+ to + and - to -). The controller will automatically detect the battery voltage.
- 태양광 패널 연결: 태양광 패널 어레이를 컨트롤러의 PV 단자에 연결하십시오. 극성이 올바른지 확인하십시오.
- DC 부하 연결(선택 사항): DC 부하를 컨트롤러의 부하 단자에 연결하십시오. 극성이 올바른지 확인하십시오.
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. 사용 설명서
The controller features an LCD display and control buttons for monitoring and configuration.
6.1 LCD 디스플레이
The LCD screen provides real-time information about your solar system, including:
- PV (Photovoltaic) Status: 입력 볼륨tage, current, and power from solar panels.
- BATT (Battery) Status: 배터리 용량tage, charging current, and state of charge.
- LOAD Status: Output current and power to the DC load.
- 시스템 볼륨tage: Automatically detected battery system voltage (12V/24V/36V/48V).
- 오류 표시기: Displays fault codes or warnings if issues occur.
6.2 제어 버튼
The controller has three buttons: ESC, Up/Down arrows, and SET.
- ESC 버튼: Used to exit current menu or cancel an operation.
- 위/아래 버튼: 메뉴 옵션을 탐색하거나 매개변수 값을 조정하는 데 사용됩니다.
- 설정 버튼: 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. 유지관리
정기적인 유지보수는 태양광 충전 컨트롤러의 최적 성능과 수명 연장을 보장합니다.
- 청소: 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.
- 사이: Check all wiring connections regularly to ensure they are tight and free from corrosion.
- 점검: Inspect the controller for any signs of physical damage, overheating, or unusual odors.
- 환경: 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.
8. 문제 해결
컨트롤러 사용 중 문제가 발생하면 다음의 일반적인 문제 및 해결 방법을 참조하십시오.
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| Controller display is off | 배터리가 연결되지 않았거나 배터리 용량이 부족합니다.tag너무 낮음. | Ensure battery is connected correctly and has sufficient charge (above 9V). |
| 태양광 발전에서 충전 전류가 흐르지 않습니다. | Solar panels not connected, insufficient sunlight, or PV polarity reversed. | 태양광 패널 연결 상태와 극성을 확인하십시오. 충분한 일조량을 확보하십시오. 태양광 패널의 전압을 확인하십시오.tage는 범위 내에 있습니다. |
| 로딩이 작동하지 않습니다 | Load disconnected, load current too high, or load polarity reversed. | Check load connections and polarity. Ensure load current does not exceed controller's rating. |
| 배터리가 완전히 충전되지 않음 | Insufficient solar input, undersized solar array, or battery issues. | Increase solar panel capacity or check for shading. Inspect battery health. |
9. 기술 사양
Below are the technical specifications for the Walfront MPPT Solar Charge Controller 50A.
| 매개변수 | 사양 |
|---|---|
| 시스템 볼륨tage | 12V / 24V / 36V / 48V 자동차 |
| 정격 충전 전류 | 50A |
| No Load Loss | ≤0.4W |
| Solar Maximum Input Voltage | 180V (at 25℃), 150V (at -25℃) |
| 배터리 용량tag및 범위 | 9-64V |
| 최대 파워 포인트 Voltag및 범위 | 배터리 용량tage +2V ~ 150V |
| 변환 효율성 | ≤98% |
| MPPT 추적 효율성 | >99% |
| 온도 보상 계수 | -2mv/℃/2V (default value) |
| 작동 온도 | -10℃ ~ 65℃ |
| 보호 등급 | IP21 |
| 고도 | ≤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 voltag에스.
10. 보증 및 지원
보증 정보 및 기술 지원에 대해서는 구매 시 제공된 설명서를 참조하거나 판매점에 문의하십시오. 구매 영수증은 구매 증빙 자료로 보관하십시오.