Growatt 5KW Off-Grid Solar Inverter Instruction Manual

1. Introduction

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Growatt SPF 5000ES 5KW Off-Grid Solar Inverter. This inverter is designed to provide reliable power for home use, converting DC power from solar panels and batteries into AC power for your appliances. Please read this manual thoroughly before installation and operation.

2. Product Overview and Components

The Growatt SPF 5000ES is a robust off-grid inverter system. Familiarize yourself with its components and interfaces.

Figure 1: Growatt SPF 5000ES Inverter with included accessories (user manual, communication cables, monitoring CD).

Figure 2: Key specifications and dimensions of the 5KW SPF 5000ES off-grid inverter. Weight: 12kg, Dimension: 330x485x135mm (H/W/D), Battery Voltage: 48V, Max. PV Array Power: 6000W, Warranty: 10 years.

Front Panel and Interface Description

Figure 3: Front panel LCD display and bottom interface ports of the Growatt SPF 5000ES inverter.

Front Panel (Refer to Figure 3, top right):

1. LCD display: Shows system status and operating parameters.
2. Status indicator: Indicates the current operational status.
3. Charging indicator: Shows battery charging status.
4. Fault indicator: Illuminates in case of a system fault.
5. Function buttons: ESC, UP, DOWN, ENTER for navigation and settings.

Bottom Interface (Refer to Figure 3, bottom):

6. AC input: Connection for grid or generator AC power.
7. WiFi/GPRS communication port: For remote monitoring and communication.
8. USB communication port: For local data transfer and firmware updates.
9. CAN communication port: For battery communication.
10. RS485 communication port: For communication with external devices.
11. Dry contact: Programmable relay for external control.
12. PV input: Connections for solar panel array.
13. Power on/off switch: Main power control for the inverter.
14. Battery input: Connections for the 48V battery bank.
15. Parallel communication ports: For connecting multiple inverters in parallel.
16. Current sharing ports: For current balancing in parallel systems.
17. AC output: Connection for household loads.
18. Circuit breaker: Overcurrent protection for the AC output.

3. Setup and Installation

Proper installation is crucial for the safety and performance of your inverter. It should only be performed by qualified personnel.

Safety Precautions

• Ensure the inverter is installed in a well-ventilated area, away from flammable materials.
• Do not expose the inverter to rain, snow, or liquids.
• Verify all wiring connections are secure and correctly polarized.
• Always disconnect all power sources (PV, battery, AC input) before performing any wiring or maintenance.
• Wear appropriate personal protective equipment (PPE).

Mounting

Mount the inverter vertically on a sturdy wall or rack, ensuring adequate clearance for ventilation. The unit should be installed indoors, protected from direct sunlight and moisture.

Figure 4: Example of multiple Growatt inverters installed.

Wiring Connections

Follow the wiring diagram carefully. All wiring must comply with local and national electrical codes.

Figure 5: Parallel operation wiring diagram for up to 6 units (only with battery connected).

1. Battery Connection: Connect the 48V battery bank to the Battery Input terminals (14) on the inverter. Ensure correct polarity (positive to positive, negative to negative).
2. PV Input Connection: Connect the solar panel array to the PV Input terminals (12). Observe correct polarity and ensure the PV array voltage is within the specified MPPT range (120VDC~430VDC) and does not exceed the maximum open circuit voltage (450VDC).
3. AC Input Connection (Optional): If connecting to a utility grid or generator, connect the AC input source to the AC Input terminals (6).
4. AC Output Connection: Connect your household loads to the AC Output terminals (17).
5. Parallel Connection (if applicable): For parallel operation of up to 6 units, connect the Parallel Communication Ports (15) and Current Sharing Ports (16) between the inverters as shown in Figure 5. This configuration requires a battery connection.
6. Communication Ports: Connect WiFi/GPRS (7), USB (8), CAN (9), or RS485 (10) communication cables as needed for monitoring or external control.
7. Grounding: Ensure the inverter is properly grounded according to local electrical codes.

4. Operating Instructions

Once all connections are secure, you can power on and operate the inverter.

Powering On/Off

1. Power On: First, switch on the battery breaker, then the PV array breaker (if applicable), and finally the AC input breaker (if applicable). Turn on the inverter's Power On/Off switch (13). The LCD display will light up, and the inverter will begin its startup sequence.
2. Power Off: Reverse the power-on sequence. First, turn off the inverter's Power On/Off switch (13). Then, turn off the AC input breaker, followed by the PV array breaker, and finally the battery breaker.

LCD Display and Navigation

The LCD display (1) provides real-time system information. Use the function buttons (5) to navigate through the menus and adjust settings:

• ESC: Exit current menu or return to the previous screen.
• UP/DOWN: Scroll through menu options or adjust values.
• ENTER: Confirm selection or enter a submenu.

The display shows various parameters such as AC input/output voltage, battery voltage, charging current, PV input power, and fault codes.

5. Maintenance

Regular maintenance ensures the longevity and optimal performance of your inverter.

• Cleaning: Periodically clean the inverter's exterior with a dry cloth. Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners.
• Connection Checks: Annually inspect all electrical connections (PV, battery, AC input/output) for tightness and signs of corrosion.
• Environmental Conditions: Ensure the operating environment maintains specified humidity (5% to 95% non-condensing) and temperature (0°C - 55°C) to prevent damage.
• Firmware Updates: Check the manufacturer's website for any available firmware updates to ensure your inverter has the latest features and bug fixes.

6. Troubleshooting

This section provides guidance for common issues. For complex problems, contact technical support.

• No Power Output: Check all circuit breakers (AC output, battery, PV). Verify battery voltage is sufficient. Ensure the inverter is powered on.
• Fault Indicator Lit: Refer to the LCD display for specific fault codes. Common faults include over-voltage, under-voltage, over-temperature, or short circuit. Consult the full user manual for detailed fault code explanations.
• No Charging from PV: Check PV array connections and ensure solar panels are receiving adequate sunlight. Verify PV input voltage is within the MPPT range.
• Inverter Overheating: Ensure adequate ventilation around the inverter. Clear any obstructions from air vents. Reduce load if necessary.

7. Specifications (SPF 5000ES)

8. User Tips

• Regular Monitoring: Utilize the communication ports (WiFi/GPRS, USB, CAN, RS485) to monitor your system's performance regularly. This helps in identifying potential issues early and optimizing energy usage.
• Battery Compatibility: Ensure your 48V battery bank is compatible with the inverter's charging parameters, especially if using lithium batteries, to maximize battery life and system efficiency.
• Load Management: Be mindful of your total load to avoid exceeding the inverter's rated power (5000W) or surge power (10000VA) capacity, especially when starting high-power appliances.

9. Warranty and Support

The Growatt SPF 5000ES inverter comes with a 5-year warranty, as indicated in the product specifications.

For technical assistance, warranty claims, or further inquiries, please contact the seller directly:

• Whatsapp: +86 18900786512
• Email: 3509534322@qq.com
• WeChat: +8618900786512