1. Rhagymadrodd
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. Nodweddion Allweddol
- 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 VoltagCydnabyddiaeth e: Supports a maximum solar input voltage of 180V (at 25℃) and automatically recognizes 12V, 24V, 36V, and 48V battery systems. Compatible with battery voltages o 9V i 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.
- Hawdd i'w Gosod a'i Ddefnyddio: 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. Gwybodaeth Diogelwch
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.
- Cysylltwch y batri yn gyntaf bob amser, yna'r panel solar, ac yn olaf y llwyth. Datgysylltwch yn y drefn wrthdro.
- Do not connect the solar panel array to the controller without a battery connected.
- Sicrhau bod y system cyftage of the solar panel and battery are compatible with the controller's specifications.
- Gosodwch y rheolydd mewn ardal sydd wedi'i hawyru'n dda, i ffwrdd o ddeunyddiau fflamadwy a golau haul uniongyrchol.
- Avoid touching live terminals. Use insulated tools during installation.
- This device is not waterproof. Protect it from moisture and water exposure.
4. Cynnwys Pecyn
Gwiriwch fod yr holl eitemau a restrir isod wedi'u cynnwys yn eich pecyn:
- 1 x Walfront MPPT Solar Charge Controller (50A)
- 4 x Sgriwiau
- 4 x Sgriwiau Ehangu
- 1 x Llawlyfr Defnyddiwr (y ddogfen hon)

Image 4.1: Package Contents. This image displays the solar charge controller alongside the mounting screws and expansion screws provided in the package.
5. Gosod a Gosod
Follow these steps for proper installation of your solar charge controller.
5.1 Gosod y Rheolydd
- 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 Gwifro Cysylltiadau
Refer to the wiring diagrams below for correct connection sequence. Always connect in the following order:
- Cysylltwch y Batri: Connect the battery to the controller's battery terminals. Ensure correct polarity (+ to + and - to -). The controller will automatically detect the battery voltage.
- Cysylltwch y Panel Solar: Connect the solar panel array to the controller's PV terminals. Ensure correct polarity.
- Cysylltwch y Llwyth DC (Dewisol): 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. Cyfarwyddiadau Gweithredu
The controller features an LCD display and control buttons for monitoring and configuration.
Arddangosfa 6.1 LCD
The LCD screen provides real-time information about your solar system, including:
- PV (Photovoltaic) Status: Mewnbwn cyftage, current, and power from solar panels.
- BATT (Battery) Status: Batri cyftage, charging current, and state of charge.
- LOAD Status: Output current and power to the DC load.
- Systemtage: Automatically detected battery system voltage (12V/24V/36V/48V).
- Dangosyddion Gwall: Displays fault codes or warnings if issues occur.
6.2 Botwm Rheoli
The controller has three buttons: ESC, Up/Down arrows, and SET.
- Botwm ESC: Used to exit current menu or cancel an operation.
- Botymau Up / Down: Used to navigate through menu options or adjust parameter values.
- Botwm SET: 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. cynnal
Mae cynnal a chadw rheolaidd yn sicrhau perfformiad a hirhoedledd gorau posibl eich rheolydd gwefr solar.
- Glanhau: 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.
- Cysylltiadau: Check all wiring connections regularly to ensure they are tight and free from corrosion.
- Arolygiad: Inspect the controller for any signs of physical damage, overheating, or unusual odors.
- Amgylchedd: 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. Datrys Problemau
If you encounter issues with your controller, refer to the following common problems and solutions:
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Mae arddangosfa'r rheolydd i ffwrdd | Dim batri wedi'i gysylltu na chyfaint batritage rhy isel. | 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 voltage o fewn ystod. |
| Llwyth ddim yn gweithio | 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 heb ei wefru'n llawn | Insufficient solar input, undersized solar array, or battery issues. | Increase solar panel capacity or check for shading. Inspect battery health. |
9. Manylebau Technegol
Below are the technical specifications for the Walfront MPPT Solar Charge Controller 50A.
| Paramedr | Manyleb |
|---|---|
| Systemtage | 12V / 24V / 36V / 48V Auto |
| Codi Tâl Graddedig Cyfredol | 50A |
| No Load Loss | ≤0.4W |
| Solar Maximum Input Voltage | 180V (at 25℃), 150V (at -25℃) |
| Batri Cyftage Ystod | 9-64V |
| Uchafswm Power Point Voltage Ystod | Batri Cyftage +2V i 150V |
| Effeithlonrwydd Trosi | ≤98% |
| Effeithlonrwydd Olrhain MPPT | >99% |
| Cyfernod Iawndal Tymheredd | -2mv/℃/2V (default value) |
| Tymheredd Gweithio | -10 ℃ i 65 ℃ |
| Gradd Amddiffyn | IP21 |
| Uchder | ≤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. Gwarant a Chefnogaeth
Am wybodaeth am warant a chymorth technegol, cyfeiriwch at y ddogfennaeth a ddarparwyd ar adeg y pryniant neu cysylltwch â'ch manwerthwr. Cadwch eich derbynneb prynu fel prawf o brynu.