Anern 6500W Hybrid Solar Inverter

1. Introduction

This is a multifunctional solar inverter, integrated with an MPPT solar charge controller, a high frequency pure sine wave inverter and a UPS function module in one machine, which is perfect for off-grid backup power and self-consumption applications. This inverter can work with or without batteries.

The whole system also needs other devices to achieve complete running such as PV modules, generator, or utility grid. Please consult with your system integrator for other possible system architectures depending on your requirements. The WiFi module is built-in or is a plug-and-play monitoring device to be installed on the inverter. With this device, users can monitor the status of the PV system from a mobile phone or from the website anytime anywhere.

Figure 1: Anern Hybrid Inverter AN-FGI-P6500 Overview
This image displays the Anern Hybrid Inverter, model AN-FGI-P6500. Key features highlighted are: 6500W power, Feed-in to Grid, Dual AC Output, 48V Nominal Output Voltage, 120A Maximum Input Current, 500V Maximum DC Voltage. It also notes optional WiFi Mode, 2 Year Warranty, and CE FC RoHS certifications. The inverter is shown with its LCD display.

2. Safety Instructions

1. Please be clear which kind of battery system you want, lithium battery system or lead-acid battery system. If you choose the wrong system, the energy storage system can't work normally.
2. Before using the unit, read all instructions and cautionary markings on the unit, the batteries and all appropriate sections of this manual. The company has the right not to quality assurance if not according to the instructions of this manual for installation and cause equipment damage.
3. All operation and connection must be performed by a professional electrical or mechanical engineer.
4. All electrical installation must comply with the local electrical safety standards.
5. When installing PV modules in the daytime, the installer should cover the PV modules with opaque materials, otherwise it will be dangerous due to the high terminal voltage of modules in the sunshine.
6. CAUTION - To reduce risk of injury, charge only deep-cycle lead-acid type rechargeable batteries and lithium batteries. Other types of batteries may burst, causing personal injury and damage.
7. Do not disassemble the unit. Take it to a qualified service center when service or repair is required. Incorrect re-assembly may result in a risk of electric shock or fire.
8. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
9. NEVER charge a frozen battery.
10. For optimum operation of this inverter, please follow required specifications to select appropriate cable size. It's very important to correctly operate this inverter.
11. Be very cautious when working with metal tools on or around batteries. A potential risk exists to drop a tool to spark or short circuit batteries or other electrical parts and could cause an explosion.
12. Please strictly follow the installation procedure when you want to disconnect AC or DC terminals. Please refer to the INSTALLATION section of this manual for the details.
13. GROUNDING INSTRUCTIONS - This inverter should be connected to a permanent grounded wiring system. Be sure to comply with local requirements and regulations to install this inverter.
14. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input short circuits.
15. Make sure the inverter is completely assembled before operation.

3. Setup and Installation

3.1 Unpacking and Inspection

Products have been strictly tested before leaving the factory. Please sign for them after inspection. If the product is damaged, please contact the local distributor. Please open the box to check whether the outer packaging is intact or damaged, and whether the internal equipment is damaged.

3.1.1 Installation Tools

3.2 Mounting the Inverter

Consider the following points before selecting where to install:

• Do not mount the inverter on flammable construction materials.
• Mount on a solid surface.
• Install this inverter at eye level in order to allow the LCD display to be read at all times.
• The ambient temperature should be between -10°C and 60°C to ensure optimal operation.
• The recommended installation position is to be adhered to the wall vertically.
• Be sure to keep other objects and surfaces as shown in the diagram above to guarantee sufficient heat dissipation and to have enough space for removing wires.

Follow the installation steps:

1. Use Φ8 drilling bit to drill holes on the mounting surface. The distance between 2 holes is 160mm. Then insert the expansion screw tube. M6 expansion screw is suggested.
2. Pick up the inverter vertically and align the screws' holes at the top of the inverter with the expansion screw tube already installed on the wall. Fix the inverter on the mounting surface by screws.
3. Before connecting all wiring, please take off the bottom cover by removing four screws.

3.3 AC Input / Output Connection

Suggestion for AC input wires

Suggestion for AC output wires

Please follow below steps to implement AC input (AC IN) connection:

1. Before making AC connection, be sure to open AC circuit breaker first.
2. Remove insulation sleeve 12mm from the head of cables, shorten the conductor part to 10mm. Insert the cable into the tubular terminal. Then use a terminal crimping tool to make the terminal and cable connected tightly.
3. Insert AC input cables according to polarities indicated on terminal blocks and tighten the terminal screws. Be sure to connect the PE protective cable on the inverter side first. (PE → Protective Earth (yellow-green), L → LINE (brown or black), N → Neutral (blue)).
4. Make sure the cables are securely connected.

To implement AC output connection, follow the same steps as AC input connection for L (LINE) and N (Neutral) cables.

3.4 PV Connection

Suggestion for PV input wires

PV Module Selection

When selecting proper PV modules, please be sure to consider below parameters:

1. Open circuit Voltage (Voc) of PV modules must not exceed the max. PV array open circuit voltage of the inverter.
2. Open circuit Voltage (Voc) of PV modules should be higher than the start-up voltage.

Please follow below steps to implement PV module connection:

1. Before making PV connection, be sure to open the DC circuit breaker first.
2. Remove insulation sleeve 12mm from the head of cables, shorten the conductor part to 10mm. Insert the cable into the tubular terminal. Then use a terminal crimping tool to make the terminal and cable connected tightly.
3. Use a multi-meter to check to ensure the polarities are correct.
4. Insert PV cables according to polarities indicated on the terminal block and tighten the terminal screws. (+ → PV+ (red), - → PV- (black)).
5. Make sure the cables are securely connected.

3.5 Battery Connection

3.5.1 Lead-acid Battery Connection

User can choose a proper capacity lead-acid battery with a nominal voltage at 48V. Also, you need to choose the battery type as 'AGM or FLD (flooded)'.

Recommended battery cable and terminal size:

Note: For lead-acid batteries, the recommended charge current is 0.3C (C ≤ battery capacity).

Please follow below steps to implement battery connection:

1. Unscrew the pre-fixed screws on battery poles. Prepare 2 DT terminals (should fit for AWG2 cables).
2. Remove insulation sleeve 12mm from the head of cables, shorten the conductor part to 10mm. Insert the cable into the DT terminal. Then use a terminal crimping tool to make the terminal and cable connected tightly.
3. Pass the battery cable through the battery installation hole on the bottom shell, and tighten the terminal screws. Make sure polarity at both the battery and the inverter/charger is correctly connected and DT terminals are tightly screwed to the battery terminals.
4. Connect all battery packs as units require. It's suggested to connect at least a 200Ah capacity battery.

3.5.2 Lithium Battery Connection

If choosing a lithium battery for the inverter, please check the compatibility of the protocol first. There are two connectors on the lithium battery: an RJ45 port for BMS and a power cable.

Please follow below steps to implement lithium battery connection:

1. Follow section 3.5.1 to implement the power cable connection.
2. Connect the RJ45 terminal of the battery communication cable to the BMS communication port of the inverter. The communication protocol should be RS485 or CAN.
3. Insert the other end of the RJ45 (battery communication cable) to the battery communication port of the lithium battery.

Note: If choosing a lithium battery, make sure to connect the BMS communication cable between the battery and the inverter.

Lithium battery communication and setting:

In order to communicate with the battery BMS, you should set the battery type to 'LIT' or 'FEL' in Section 4.2.2 Program 17.

Make sure the lithium battery BMS port connects to the inverter is Pin to Pin. The inverter BMS port pin assignment is shown below:

Communicating with battery BMS in parallel system

If you need to use communicate with BMS in a parallel system, you should make sure to connect the BMS communication cable between the battery and one inverter of the parallel system.

3.6 Smart Communication Stick Connection (Optional)

Some models support external WiFi monitoring function; please insert the WiFi stick into the COM port directly, and it can connect to the cloud platform. Some models support built-in WiFi monitoring function; please check the solar APP quick configuration guide.

3.7 Parallel Installation Guide (Optional)

The inverter can be used in parallel with two different operation modes:

1. Parallel operation in single phase with up to 9 units.
2. Maximum 9 units work together to support 3-phase operation, and up to 7 units can be configured for one phase of the three-phase system. In a 3-phase system, it is required that at least 1 inverter is working properly for each phase.

Check the installation instructions from above sections. Be sure to save enough clearance between every 2 inverters. For AC/DC breaker/disconnector, please check the recommended size from the corresponding section and how many units of inverter are mounted, then select the proper model of breaker/disconnector.

3.7.1 Parallel Cable Connection in Single Phase

2-9 inverters in parallel system connection:

Figure 2: Parallel Connection Diagram (Single Phase)
This diagram illustrates how to connect 2 to 9 inverters in parallel for a single-phase system. It shows connections from the grid, loads, battery, and PV (solar panels) to multiple inverters, which are then connected via positive and negative busbars.

3.7.2 Parallel Cable Connection in Three Phase

In a parallel system, at least 1 inverter that is working properly must be maintained for each phase.

Example 1: phase A-3 inverters, phase B-3 inverters, phase C-3 inverters.

Example 2: phase A-1 inverters, phase B-1 inverters, phase C-7 inverters.

3-9 inverters in parallel system connection:

3.7.3 Communication Cable for Parallel

The connection of parallel communication cables does not require consideration of which phase the inverter is in, nor does it differentiate in order. The communication cable can be inserted into any parallel communication interface of the inverter. It is necessary to ensure a circular connection of the communication cable.

When there are a large number of inverters in a parallel system, it is recommended to connect the inverter communication cable every other inverter, so as to use the standard cables in the accessories to complete it, without the need for a long cable from the end inverter to the beginning inverter.

3.7.4 BMS Cable for Parallel

There are two ways to connect BMS and inverters:

1. All battery BMS are interconnected and then connected to only one inverter.
2. If the number of inverters is the same as the number of batteries, each BMS can be separately connected to one inverter.

Attention: All battery power cables must be connected in parallel. If the number of inverters does not match the number of batteries, connection (1) must be used.

3.7.5 System Setting for Parallel

To perform the system setting, please refer to section 4.2.2 Program 27 and 28 first.

3.7.5.1 Single phase setting

1. Before setting, please check if the wiring is correct. Ensure that all circuit breakers (PV, AC input, AC output battery breaker) are disconnected and that each neutral line of the inverter is connected together.
2. Switch 'ON/OFF' switch to OFF and make sure all inverters are switched to OFF. Connect the battery breaker to power the inverters.
3. If there is a grid in the parallel system, skip directly to step 4. If there is no grid in the parallel system, switch the 'ON/OFF' switch to ON on the inverter, wait until the LCD display is on. Then switch the 'ON/OFF' switch to OFF and the LCD display will last for a while.
4. Set "PAR" in program 27 on the LCD.
5. Follow steps 3 & 4 to set all parallel inverters.
6. Switch the 'ON/OFF' switch to ON on the inverter, then connect all the breakers.

Note:

1. When setting the LCD program, the ON/OFF switch must be OFF. Otherwise, it cannot be set up.
2. The primary and slave devices are generated by competition within the system.
3. After parallel setting, when the parameters of one inverter (unrelated to parallel operation) are changed, other inverters will automatically synchronize the parameters.

3.7.5.2 Three phase setting

Follow the steps of Single phase setting. Most of the steps are the same except 2 points: The first difference is when set in Program 27, it should be 3P1 for the first phase, 3P2 for the second phase, and 3P3 for the third phase. The second difference is to verify whether the three-phase input has the correct phase sequence. The inverter needs to be set to UPS mode. If the screen displays that the power grid cannot be connected to the system, the AC phase sequence of the system input needs to be adjusted. After the power grid is connected normally, the APP or UPS mode can be set according to actual needs.

3.7.6 WiFi connection in parallel system

There are two ways to install WiFi:

1. Only install a WiFi stick on any one inverter, and the entire parallel system will upload data through this WiFi stick.
2. Install WiFi sticks on each inverter, and each inverter will upload its own data through its own WiFi stick.

4. Operation

4.1 Power ON/OFF

Once the unit has been properly installed and the batteries are connected well, simply press the ON/OFF switch (located on the bottom of the case) to turn on the unit.

4.2 Operation and Display Panel

The operation and display panel, shown in the figure below, is on the front panel of the inverter. It includes four indicators, four function keys, and an LCD display, indicating the operating status and input/output power information.

Figure 3: Inverter Parameter Information and Port Layout
This image provides detailed parameter information for the inverter's LCD display and physical ports.
LCD Display Indicators: 1. AC Indicator, 2. Invert Indicator, 3. Charging Indicator, 4. Fault Indicator, 5. LCD Display, 6. RGB Light (White: Standby, Blue: City electricity, Orange: PV mode), 7. ESC Button, 8. Down Button, 9. Enter Button.
Bottom Panel Ports: 1. AC Input, 2. Main/Second Output, 3. BMS Communication Port, 4. Battery Input, 5. Power On/Off Switch, 6. WiFi port, 7. Parallel Connection, 8. PV Input, 9. AC Input Breaker.

LED Indicator Messages

Function Buttons

4.3 LCD Settings

After pressing and holding the ENTER button for 2 seconds, the unit will enter setting mode. Press the 'UP' or 'DOWN' button to select setting programs. Then press the 'ENTER' button to confirm the selection or the ESC button to exit.

Notes:

• Standby mode: Inverter is not allowed to power the load. (Turn output switch to 'OFF' or inverter is abnormal)
• Battery mode: Inverter is allowed to power the load with PV/PV+Battery/Battery, and operates without the grid.
• Grid mode: Inverter is allowed to power the load with PV/PV+Grid/Grid, and operates with the grid.

Detailed LCD settings are available in the PDF manual (Section 4.2.2, pages 20-30). Please refer to the official PDF manual for a comprehensive list of all programmable settings.

4.4 Display Information

The LCD display information will be switched in turns by pressing the 'UP' or 'DOWN' key. If there is no operation for a long time, the daily PV power generation will be displayed at the bottom of the screen. For example, the following screen displays 2.5kWh.

The selectable information is switched as below:

5. Maintenance

Regular maintenance ensures the longevity and optimal performance of your Anern Hybrid Solar Inverter. Please follow these guidelines:

• Visual Inspection: Periodically inspect the inverter for any visible damage, loose connections, or signs of overheating (discoloration).
• Cleaning: Keep the inverter's ventilation openings clear of dust and debris to ensure proper airflow and cooling. Use a soft, dry cloth to clean the exterior. Do not use liquid cleaners.
• Connection Checks: Annually, or as needed, check all electrical connections (AC input/output, PV, battery) to ensure they are tight and free from corrosion. Ensure power is disconnected before checking connections.
• Environment: Ensure the inverter is operating within its specified ambient temperature range and that the installation area remains dry and well-ventilated.
• Firmware Updates: If available, check for firmware updates from the manufacturer to ensure your inverter has the latest features and bug fixes.
• Battery Health: For battery-based systems, regularly monitor battery health according to the battery manufacturer's guidelines. Ensure battery equalization is performed as recommended for lead-acid batteries (refer to Section 8 of the PDF manual).

6. Troubleshooting

6.1 Fault Reference Codes

If a fault occurs, the fault indicator flashes and the buzzer sounds every one second for 1 minute, then stops. If a fault persists, the fault indicator is always on, and the buzzer sounds for 10 seconds then stops. The system will attempt to restart automatically. If the machine does not work after six restarts, the machine and LCD display will remain in the fault status. You need to completely power off (off the screen) or wait for 30 minutes to restart the machine. The fault LCD display shows a fault icon. In fault mode, the fault icon is bright; in alarm state, the alarm icon is flashing. Contact the manufacturer to troubleshoot abnormal situations according to the fault information.

Fault: The inverter enters fault mode, with a constant red LED light and LCD displaying a fault code.

Detailed fault codes and their solutions are provided in the official PDF manual (Section 6, pages 40-42). Please refer to the PDF for specific fault codes, meanings, trigger conditions, and resume conditions.

6.2 Alarm Reference Codes

Alarm: The inverter does not enter fault mode, the LED red light flashes, and the LCD displays the Alarm code.

Detailed alarm codes and their solutions are provided in the official PDF manual (Section 7, pages 43-45). Please refer to the PDF for specific alarm codes, meanings, relevant actions, trigger conditions, and resume conditions.

6.3 General Troubleshooting

For common issues and their solutions, refer to the table below. For more detailed troubleshooting, consult the official PDF manual (Section 9, pages 48-49).

7. Specifications

Below are the key specifications for the Anern AN-FGI-P6500 Hybrid Solar Inverter:

8. User Tips

Based on general user experiences with hybrid solar inverters, here are some tips to optimize your system's performance and longevity:

• Proper Sizing: Ensure your PV array and battery bank are appropriately sized for your energy consumption and the inverter's capabilities to maximize efficiency and prevent overloading.
• Monitoring: Utilize the optional WiFi monitoring feature to keep track of your system's performance, identify potential issues early, and optimize energy usage.
• Battery Management: For lead-acid batteries, regular equalization (as described in Section 8 of the PDF manual) is crucial for extending battery life. For lithium batteries, ensure BMS communication is correctly configured.
• Ventilation: Always ensure adequate ventilation around the inverter. Restricting airflow can lead to overheating and reduced performance or lifespan.
• Professional Installation: While this manual provides detailed instructions, consider professional installation for complex setups, especially parallel or three-phase systems, to ensure safety and compliance with local codes.

9. Warranty and Support

The Anern AN-FGI-P6500 Hybrid Solar Inverter typically comes with a 2-year warranty from the date of purchase. Please refer to your purchase documentation or contact your seller for specific warranty terms and conditions, including coverage details and claim procedures.

For technical support, troubleshooting assistance beyond what is covered in this manual, or warranty claims, please contact your authorized dealer or the manufacturer's customer service. When contacting support, please have your product model number (AN-FGI-P6500), serial number, and date of purchase readily available.

For further detailed information, including advanced settings and specific wiring diagrams, please refer to the official PDF user manual available at https://manuals.plus/m/4974969a036ba8479c58ef590f4c8e82abe044ac17fa4f959d2784c599b30164.