SRNE 5000W 48V Hybrid Solar Inverter

1. Introduction

The SRNE HF series is a new hybrid solar charge inverter designed for solar energy storage and AC sine wave output. It features DSP control and an advanced control algorithm, ensuring high response speed, reliability, and adherence to industrial standards. This inverter offers flexible charging and output modes to suit various application requirements.

Key Features:

• Full digital voltage and current double closed-loop control with advanced SPWM technology for pure sine wave output.
• Two output modes: mains bypass and inverter output, providing uninterrupted power supply.
• Four charging modes: Only Solar, Utility Priority, PV Priority, and Utility & Solar hybrid charging.
• Advanced MPPT technology with an efficiency of 99.9% for optimal solar energy harvesting.
• LCD screen and three LED indicators for dynamic display of system data and operating status.
• Manual ON/OFF switch for controlling AC output.
• Power saving mode to reduce empty load loss.
• Intelligent variable speed fan for efficient heat dissipation and extended system life.
• Lithium battery activation via PV solar or mains, supporting both lead-acid and lithium batteries.
• Comprehensive protections including short circuit, over voltage, under voltage, overload, and reverse protection.

2. Package Contents

Upon unpacking, please verify that all items listed below are included and in good condition:

• All-in-one Solar Charge Inverter (HF4850S80-H) x 1
• User Manual x 1
• M5 Screws x 4
• Terminal Blocks x 2

3. Setup and Installation

3.1. Product Overview and Connections

Familiarize yourself with the inverter's physical layout and connection points before installation.

Key Components:

1. Overload protector
2. ON/OFF rocker switch
3. AC input port
4. AC output port
5. Grounding screw hold
6. RS485-2 communication port
7. USB communication port
8. RS485-1 communication port
9. Dry contact port
10. Cooling fan
11. Battery port
12. PV port
13. Touch the key lightly (buttons)
14. Indicator light
15. LCD screen

3.2. General Connection Diagram

The inverter connects to PV panels, an external battery bank, and can draw power from a generator or utility grid to supply household loads. Ensure all connections are secure and follow local electrical codes.

Note: The solar panels must be connected in series! The maximum input current is 40A. This inverter cannot be connected in parallel or stacked.

3.3. Wi-Fi Module Installation and Setup (Optional)

If your model includes Wi-Fi functionality, follow these steps to install and configure the Wi-Fi Plug07 module:

1. Installation: Align the interface of the Wi-Fi Plug07 with the inverter and plug it in lightly. Confirm the status of the LED indicator (a green LED light indicates normal working status).
2. Wireless Router Connection:
   1. Download the SmartESS app (iOS/Android) and register an account.
   2. Scan the QR code from the cover of this guideline and download the app.
   3. Connect your phone to the hotspot of Wi-Fi Plug07 (Initial Password: 12345678).
3. Wi-Fi Config:
   1. Open the app, tap the Wi-Fi Config button to enter this page.
   2. Then tap the Network Setting button.
4. Network Setting: According to the prompts, type in the information for network setting. After the Wi-Fi Plug07 is restarted, reconnect the Wi-Fi which connected by step 2.1.
5. Create Account and Datalogger:
   1. Create Account: Open the app, tap the Register button. According to the prompt information, complete creating an account.
   2. Add Datalogger: Login the account and click the list button on the bottom of the home page. Tap the "+" button on the top-right corner of the list page. Scan the datalogger PN on the Wi-Fi Plug07, or input it manually. According to the prompts, type in the information to finish adding datalogger.

4. Operating Instructions

4.1. Charging Modes

The inverter supports four distinct charging modes, configurable via the system settings:

• Solar Charging ONLY: Prioritizes solar power for charging batteries.
• Electricity Utility Priority: Uses utility power as the primary source for charging, with solar as a supplement.
• Solar Priority: Prioritizes solar power for charging and supplying loads, using utility power only when solar is insufficient.
• Hybrid Charging: Combines solar and utility power for optimal charging.

4.2. Load Output Modes

The inverter offers three load output modes to manage power distribution to your appliances:

• PV Priority: Prioritizes power from PV panels to supply loads.
• Utility Priority: Prioritizes power from the utility grid to supply loads.
• Inverter Mode: Supplies power from the inverter (battery) to loads.

4.3. Battery Compatibility

The inverter is compatible with various 48V battery types, including Lead-Acid (Sealed/AGM/Flooded/Gel) and Lithium batteries. It is crucial to select the correct battery type in the inverter's settings (e.g., setting 09-21) for proper operation and charging. The inverter requires a 48V battery to function.

5. Maintenance

Regular maintenance ensures the longevity and optimal performance of your SRNE Hybrid Solar Inverter.

• Cleaning: Keep the inverter clean and free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
• Ventilation: Ensure that the cooling fans and ventilation openings are not obstructed. The intelligent variable speed fan system requires clear airflow for efficient heat dissipation.
• Connections: Periodically check all electrical connections (PV, battery, AC input/output) for tightness and signs of corrosion.
• Environment: Operate the inverter within its specified temperature and humidity ranges to prevent damage.

6. Troubleshooting

The inverter is equipped with comprehensive protection mechanisms. If an issue occurs, the LCD display and LED indicators may provide diagnostic information.

Common Protections and Actions:

• Overload Protection:
  • (102% < load < 110%) ±10%: Reports error and turns off output after 5 minutes.
  • (110% < load < 125%) ±10%: Reports error and turns off output after 10 seconds.
  • Load > 125% ±10%: Reports error and turns off output after 5 seconds.

  Action: Reduce the connected load to within the inverter's rated capacity and restart the unit.

• Short Circuit Protection: The inverter features output short-circuit protection via a breaker.

  Action: Disconnect the short-circuited load, check wiring, and reset the breaker if tripped.

• Charge Short-Circuit Protection: Protected by a blown fuse.

  Action: Identify and resolve the short circuit in the charging path, then replace the fuse.

• Over Voltage / Under Voltage Protection: The system will protect itself from abnormal voltage levels.

  Action: Check input voltage sources (PV, utility, battery) to ensure they are within the specified operating ranges.

• Reverse Polarity Protection: For wiring.

  Action: Ensure correct polarity for all DC connections (PV and battery) during installation to prevent damage.

• Overcharge Protection (AC): Turns off charge after a 1-minute alarm.

  Action: Verify battery settings and ensure they match the connected battery type.

Important: If the issue persists after attempting these troubleshooting steps, contact qualified service personnel.

7. Specifications (Model: HF4850S80-H)

8. Warranty and Support

The SRNE HF4850S80-H Hybrid Solar Inverter comes with a 2-year warranty.

For technical support, service, or warranty claims, please contact your vendor or the manufacturer directly. Ensure you have your product model number (HF4850S80-H) and purchase details available.

Certifications:

• CE (IEC 62109-1)
• RoHS
• EMC (EN61000)

9. User Tips

• Battery Sizing: The correct battery capacity is crucial for system performance. Ensure your battery bank is appropriately sized for your specific load requirements and application scenarios to avoid insufficient capacity or wasted power generation. Consult the manual's recommendations or a professional if unsure.
• Fan Noise: While the inverter features an intelligent variable speed fan for cooling, some users may find the fan noise noticeable. Ensure adequate ventilation around the unit to allow the fans to operate efficiently without excessive strain.