1. Entwodiksyon
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. Karakteristik kle
- 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 Rekonesans: Supports a maximum solar input voltage of 180V (at 25℃) and automatically recognizes 12V, 24V, 36V, and 48V battery systems. Compatible with battery voltagse soti nan 9V a 64V.
- 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.
- Fasil pou enstale ak itilize: 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 examples.
3. Enfòmasyon sou Sekirite
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.
- Toujou konekte batri a an premye, answit panèl solè a, epi finalman chaj la. Dekonekte nan lòd envès la.
- Do not connect the solar panel array to the controller without a battery connected.
- Asire sistèm voltage of the solar panel and battery are compatible with the controller's specifications.
- Enstale kontwolè a nan yon zòn ki byen ayere, lwen materyèl ki ka pran dife ak limyè solèy dirèk.
- Avoid touching live terminals. Use insulated tools during installation.
- This device is not waterproof. Protect it from moisture and water exposure.
4. Pake kontni
Verifye ke tout atik ki nan lis anba a yo enkli nan pakè ou a:
- 1 x Walfront MPPT Solar Charge Controller (50A)
- 4 x Vis
- 4 x Vis Ekspansyon
- 1 x Manyèl Itilizatè (dokiman sa a)

Image 4.1: Package Contents. This image displays the solar charge controller alongside the mounting screws and expansion screws provided in the package.
5. Enstalasyon ak Enstalasyon
Follow these steps for proper installation of your solar charge controller.
5.1 Monte kontwolè a
- Chwazi yon kote ki sèk, byen ayere, pwoteje kont limyè solèy dirèk, tanperati ki wo ak imidite.
- 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 Koneksyon fil elektrik
Refer to the wiring diagrams below for correct connection sequence. Always connect in the following order:
- Konekte batri a: Connect the battery to the controller's battery terminals. Ensure correct polarity (+ to + and - to -). The controller will automatically detect the battery voltage.
- Konekte panèl solè a: Connect the solar panel array to the controller's PV terminals. Ensure correct polarity.
- Konekte chaj DC a (Si ou vle): 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. Operasyon Enstriksyon
The controller features an LCD display and control buttons for monitoring and configuration.
6.1 LCD Display
The LCD screen provides real-time information about your solar system, including:
- PV (Photovoltaic) Status: Antre voltage, current, and power from solar panels.
- BATT (Battery) Status: Batri voltage, charging current, and state of charge.
- LOAD Status: Output current and power to the DC load.
- Sistèm Voltage: Automatically detected battery system voltage (12V/24V/36V/48V).
- Endikatè erè: Displays fault codes or warnings if issues occur.
6.2 Bouton Kontwòl
The controller has three buttons: ESC, Up/Down arrows, and SET.
- ESC bouton: Used to exit current menu or cancel an operation.
- Bouton monte / desann: Itilize pou navige nan opsyon meni yo oubyen pou ajiste valè paramèt yo.
- SET bouton: 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. Antretyen
Antretyen regilye asire pèfòmans optimal ak lonjevite kontwolè chaj solè ou a.
- Netwayaj: 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.
- Koneksyon: Check all wiring connections regularly to ensure they are tight and free from corrosion.
- Enspeksyon: Inspect the controller for any signs of physical damage, overheating, or unusual odors.
- Anviwònman: Asire w ke anviwònman enstalasyon an rete sèk epi byen ayere.

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.
NAN. Depanaj
Si ou rankontre pwoblèm ak kontwolè ou a, gade pwoblèm ak solisyon komen sa yo:
| Pwoblèm | Kòz posib | Solisyon |
|---|---|---|
| Controller display is off | No battery connected or battery voltage twò ba. | Ensure battery is connected correctly and has sufficient charge (above 9V). |
| Pa gen kouran chaj ki soti nan PV a | Solar panels not connected, insufficient sunlight, or PV polarity reversed. | Check PV connections and polarity. Ensure adequate sunlight. Verify PV voltage se nan ranje. |
| Chaj la pa fonksyone | Load disconnected, load current too high, or load polarity reversed. | Check load connections and polarity. Ensure load current does not exceed controller's rating. |
| Batri pa konplètman chaje | Insufficient solar input, undersized solar array, or battery issues. | Increase solar panel capacity or check for shading. Inspect battery health. |
9. Espesifikasyon teknik
Below are the technical specifications for the Walfront MPPT Solar Charge Controller 50A.
| Paramèt | Spesifikasyon |
|---|---|
| Sistèm Voltage | 12V / 24V / 36V / 48V Oto |
| Rated Chaje Kouran | 50A |
| No Load Loss | ≤0.4W |
| Solar Maximum Input Voltage | 180V (at 25℃), 150V (at -25℃) |
| Batri Voltage Range | 9-64V |
| Maksimòm Power Point Voltage Range | Batri Voltage +2V pou 150V |
| Konvèsyon Efikasite | ≤98% |
| MPPT Tracking Efikasite | >99% |
| Koefisyan Konpansasyon Tanperati | -2mv/℃/2V (default value) |
| Tanperati travay | -10 ℃ pou 65 ℃ |
| Pwoteksyon Klas | IP21 |
| Altitid | ≤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 voltages.
10. Garanti ak sipò
Pou enfòmasyon sou garanti a ak sipò teknik, tanpri gade dokiman yo te bay lè w te achte a oswa kontakte machann ou an. Kenbe resi acha w la kòm prèv acha.