1. પરિચય
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. મુખ્ય લક્ષણો
- 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 Voltagઈ ઓળખ: Supports a maximum solar input voltage of 180V (at 25℃) and automatically recognizes 12V, 24V, 36V, and 48V battery systems. Compatible with battery voltages 9V થી 64V સુધી.
- 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.
- ઇન્સ્ટોલ અને ઉપયોગમાં સરળ: 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 exampલેસ
3. સલામતી માહિતી
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.
- હંમેશા પહેલા બેટરી, પછી સોલર પેનલ અને છેલ્લે લોડ જોડો. વિપરીત ક્રમમાં ડિસ્કનેક્ટ કરો.
- Do not connect the solar panel array to the controller without a battery connected.
- સિસ્ટમ વોલ્યુમની ખાતરી કરોtage of the solar panel and battery are compatible with the controller's specifications.
- કંટ્રોલરને સારી રીતે હવાની અવરજવરવાળા વિસ્તારમાં સ્થાપિત કરો, જ્વલનશીલ પદાર્થો અને સીધા સૂર્યપ્રકાશથી દૂર.
- Avoid touching live terminals. Use insulated tools during installation.
- This device is not waterproof. Protect it from moisture and water exposure.
4. પેકેજ સામગ્રી
ખાતરી કરો કે નીચે સૂચિબદ્ધ બધી વસ્તુઓ તમારા પેકેજમાં શામેલ છે:
- 1 x Walfront MPPT Solar Charge Controller (50A)
- 4 x સ્ક્રૂ
- ૧૦ x વિસ્તરણ સ્ક્રૂ
- ૧ x વપરાશકર્તા માર્ગદર્શિકા (આ દસ્તાવેજ)

Image 4.1: Package Contents. This image displays the solar charge controller alongside the mounting screws and expansion screws provided in the package.
5. સેટઅપ અને ઇન્સ્ટોલેશન
Follow these steps for proper installation of your solar charge controller.
5.1 કંટ્રોલર માઉન્ટ કરવાનું
- 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 વાયરિંગ કનેક્શન્સ
Refer to the wiring diagrams below for correct connection sequence. Always connect in the following order:
- બેટરી કનેક્ટ કરો: Connect the battery to the controller's battery terminals. Ensure correct polarity (+ to + and - to -). The controller will automatically detect the battery voltage.
- સોલાર પેનલ જોડો: Connect the solar panel array to the controller's PV terminals. Ensure correct polarity.
- ડીસી લોડ કનેક્ટ કરો (વૈકલ્પિક): 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. ઓપરેટિંગ સૂચનાઓ
The controller features an LCD display and control buttons for monitoring and configuration.
6.1 એલસીડી ડિસ્પ્લે
The LCD screen provides real-time information about your solar system, including:
- PV (Photovoltaic) Status: ઇનપુટ વોલ્યુમtage, current, and power from solar panels.
- BATT (Battery) Status: બેટરી વોલ્યુમtage, charging current, and state of charge.
- LOAD Status: Output current and power to the DC load.
- સિસ્ટમ વોલ્યુમtage: Automatically detected battery system voltage (12V/24V/36V/48V).
- ભૂલ સૂચકાંકો: Displays fault codes or warnings if issues occur.
6.2 નિયંત્રણ બટનો
The controller has three buttons: ESC, Up/Down arrows, and SET.
- ESC બટન: Used to exit current menu or cancel an operation.
- ઉપર/નીચે બટનો: Used to navigate through menu options or adjust parameter values.
- સેટ બટન: 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. જાળવણી
નિયમિત જાળવણી તમારા સૌર ચાર્જ કંટ્રોલરની શ્રેષ્ઠ કામગીરી અને આયુષ્ય સુનિશ્ચિત કરે છે.
- સફાઈ: 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.
- જોડાણો: Check all wiring connections regularly to ensure they are tight and free from corrosion.
- નિરીક્ષણ: Inspect the controller for any signs of physical damage, overheating, or unusual odors.
- પર્યાવરણ: 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. મુશ્કેલીનિવારણ
If you encounter issues with your controller, refer to the following common problems and solutions:
| સમસ્યા | સંભવિત કારણ | ઉકેલ |
|---|---|---|
| Controller display is off | No battery connected or battery voltage ખૂબ ઓછું. | 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 રેન્જમાં છે. |
| લોડ કામ કરી રહ્યું નથી | Load disconnected, load current too high, or load polarity reversed. | Check load connections and polarity. Ensure load current does not exceed controller's rating. |
| બેટરી સંપૂર્ણ ચાર્જ નથી | Insufficient solar input, undersized solar array, or battery issues. | Increase solar panel capacity or check for shading. Inspect battery health. |
9. ટેકનિકલ વિશિષ્ટતાઓ
Below are the technical specifications for the Walfront MPPT Solar Charge Controller 50A.
| પરિમાણ | સ્પષ્ટીકરણ |
|---|---|
| સિસ્ટમ વોલ્યુમtage | 12V / 24V / 36V / 48V Auto |
| રેટેડ ચાર્જિંગ વર્તમાન | 50A |
| No Load Loss | ≤0.4W |
| Solar Maximum Input Voltage | 180V (at 25℃), 150V (at -25℃) |
| બેટરી વોલ્યુમtage રેન્જ | 9-64V |
| મહત્તમ પાવર પોઈન્ટ વોલ્યુમtage રેન્જ | બેટરી વોલ્યુમtage +2V થી 150V |
| રૂપાંતર કાર્યક્ષમતા | ≤98% |
| MPPT ટ્રેકિંગ કાર્યક્ષમતા | >99% |
| તાપમાન વળતર ગુણાંક | -2mv/℃/2V (default value) |
| કાર્યકારી તાપમાન | -10 ℃ થી 65 ℃ |
| પ્રોટેક્શન ગ્રેડ | IP21 |
| ઊંચાઈ | ≤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. વોરંટી અને સપોર્ટ
વોરંટી માહિતી અને ટેકનિકલ સપોર્ટ માટે, કૃપા કરીને ખરીદી સમયે આપેલા દસ્તાવેજોનો સંદર્ભ લો અથવા તમારા રિટેલરનો સંપર્ક કરો. ખરીદીના પુરાવા તરીકે તમારી ખરીદી રસીદ રાખો.