1. Introduction
The Sofarsolar WiFi Data Collector is a wireless monitoring module designed to provide real-time data collection and transmission for photovoltaic grid tie inverters. This device allows users to remotely monitor the performance of their solar power system via a dedicated application or web portal, ensuring optimal operation and timely detection of any issues. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your data collector.
2. Safety Information
Please read and understand all safety instructions before installing or operating the device. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the inverter is powered off before connecting or disconnecting the data collector.
- Do not expose the device to water, moisture, or extreme temperatures.
- Do not attempt to open or repair the device. Refer all servicing to qualified personnel.
- Keep the device away from flammable materials and direct sunlight.
- Use only the specified input voltage (DC 5V-12V) for the device.
3. Package Contents
Verify that all items are present and in good condition upon unpacking:
- Sofarsolar WiFi Data Collector (LSW-3 or LSW-3-C)
- Instruction Manual
4. Product Overview
The Sofarsolar WiFi Data Collector comes in two main variants, each compatible with different inverter versions:
- LSW-3 (USB WiFi): Designed for newer versions of Sofarsolar grid tie inverters, featuring a standard USB-A connector.
- LSW-3-C (9 Pin WiFi): Designed for older versions of Sofarsolar grid tie inverters, featuring a 9-pin serial connector.
Important: Please ensure you select the correct model that matches your inverter's communication port (USB or 9-pin) before installation.
Indicator Lights
Both models feature indicator lights to show the device's status:
- PWR (Power): Indicates the device is receiving power.
- COM (Communication): Indicates communication status with the inverter. Blinks during data exchange.
- NET (Network): Indicates WiFi network connection status. Blinks when connected to the network and transmitting data.
- READY/SRV (Service/Ready): Indicates the device's operational readiness or service status.
5. Setup
5.1 Choosing the Correct Model
As noted in the Product Overview, select the data collector that matches your inverter's communication port:
- LSW-3 (USB): For new version Sofarsolar grid tie inverters with a USB port.
- LSW-3-C (9 Pin): For old version Sofarsolar grid tie inverters with a 9-pin serial port.
5.2 Physical Installation
- Power Off Inverter: Ensure your photovoltaic grid tie inverter is completely powered off and isolated from all power sources before proceeding.
- Connect Data Collector:
- For LSW-3-C (9 Pin): Align the 9-pin connector of the data collector with the corresponding 9-pin serial port on your inverter. Gently push until it is securely seated. You may need to tighten any retaining screws if available.
- For LSW-3 (USB): Insert the USB-A connector of the data collector into the USB port on your inverter. Ensure it is fully inserted.
LSW-3-C 9-Pin Connector 
LSW-3 USB Connector - Secure Placement: Ensure the data collector is positioned in a way that does not obstruct ventilation or other components of the inverter.
- Power On Inverter: Restore power to your inverter. The data collector will power on automatically, indicated by the PWR light illuminating.
5.3 WiFi Configuration
After physical installation and power-up, the data collector needs to be connected to your local WiFi network. The exact steps may vary slightly depending on the specific firmware version and accompanying mobile application or web interface provided by Sofarsolar or your inverter manufacturer. Generally, the process involves:
- Initial Power-Up: Once powered, the data collector will typically broadcast its own temporary WiFi network (e.g., 'Solar-WiFi-XXXX').
- Connect to Device WiFi: Using a smartphone or computer, connect to this temporary WiFi network.
- Access Configuration Interface: Open a web browser and navigate to the device's default IP address (often 192.168.1.1 or similar, refer to the specific manual included with your inverter or data collector for the exact address).
- Enter Network Details: In the configuration interface, select your home or facility's WiFi network (SSID) and enter the corresponding password.
- Save and Restart: Save the settings. The device will then attempt to connect to your specified WiFi network. The temporary WiFi network will disappear, and the NET indicator light should begin blinking steadily once connected.
- Download Monitoring App: Download the official monitoring application (e.g., 'Solarman Smart' or similar, as specified by Sofarsolar) from your smartphone's app store, or access the web monitoring portal.
- Register/Log In: Create an account or log in to the monitoring platform.
- Add Device: Follow the app/portal instructions to add your data collector, typically by scanning a QR code on the device or entering its serial number.
6. Operating Instructions
Once the WiFi Data Collector is successfully installed and configured, it will automatically begin collecting data from your inverter and transmitting it to the cloud monitoring platform.
- Monitoring Data: Access your solar system's performance data through the dedicated mobile application or web portal. This typically includes real-time power generation, historical data, energy yield, and operational status.
- Indicator Light Status: Regularly check the indicator lights on the data collector to ensure proper operation:
- PWR: Solid ON indicates power.
- COM: Blinking indicates active communication with the inverter.
- NET: Blinking indicates active connection to the WiFi network and data transmission.
- READY/SRV: Solid ON or blinking indicates the device is ready or performing service functions.
7. Maintenance
- Cleaning: Keep the data collector clean and free from dust. Use a soft, dry cloth for cleaning. Do not use liquid cleaners or solvents.
- Environmental Conditions: Ensure the device operates within its specified environmental conditions (temperature, humidity) to prevent damage.
- Firmware Updates: Periodically check the monitoring application or web portal for any available firmware updates for the data collector. Follow the instructions provided for safe updating.
- Connection Check: Occasionally check the physical connection to the inverter to ensure it remains secure.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| PWR light is off | No power from inverter. | Check if the inverter is powered on. Ensure the data collector is securely connected to the inverter's communication port. |
| COM light is off or not blinking | No communication with inverter. | Verify the data collector is correctly installed in the inverter's communication port. Ensure the inverter is operating correctly. |
| NET light is off or not blinking | No WiFi network connection or data transmission. | Check your local WiFi router's status. Re-configure WiFi settings if necessary (refer to Section 5.3). Ensure the data collector is within range of your WiFi network. |
| Data not appearing in monitoring app/portal | Network issue, device not registered, or server problem. | Check NET light status. Ensure the device is correctly registered in the monitoring app/portal. Check the app/portal for any service outages. |
| Incorrect model selected | USB model used for old inverter or 9-pin model for new inverter. | Ensure you have the correct data collector model (LSW-3 for new USB inverters, LSW-3-C for old 9-pin inverters). The wrong model will not function. |
9. Specifications
| Feature | Specification |
|---|---|
| Model Numbers | LSW-3 (USB), LSW-3-C (9 Pin) |
| Type | Data Collectors |
| Input Voltage | DC 5V-12V |
| Power Consumption | 1.5W |
| Connectivity | WiFi |
| Compatibility | Sofarsolar Grid Tie Inverters (Newer versions for USB, Older versions for 9 Pin) |
| Origin | Mainland China |
| Brand Name (as listed) | Fresh Leaf Energy |
10. User Tips
- Always double-check your inverter's communication port type (USB or 9-pin) before purchasing to ensure compatibility.
- Place your WiFi router as close as possible to the inverter and data collector to ensure a strong and stable WiFi signal.
- Keep a record of your data collector's serial number and your monitoring account login details for future reference.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your original point of purchase or the manufacturer directly. Keep your purchase receipt and the product's serial number handy when contacting support.
