1. Introduction
This manual describes the assembly, installation, operation, and maintenance of the ANERN FGI-S series hybrid solar inverter. Please read this manual carefully before installation and operation to ensure proper functioning and safety.
The ANERN FGI-S series is a multifunctional solar inverter, integrating an MPPT solar charge controller, a high-frequency pure sine wave inverter, and a UPS function module into a single unit. It is designed for off-grid backup power and self-consumption applications and can operate with or without batteries.
The complete system requires additional components such as PV modules, a generator, or a utility grid. The inverter may include a built-in or plug-and-play WiFi module for monitoring the PV system status via mobile phone or web interface.
2. Safety Instructions
This chapter contains important safety and operating instructions. Read and keep this manual for future reference.
WARNING! A high level of potential danger, which, if not avoided, could result in death or serious injury to personnel.
DANGER: High Voltage! Electrical Hazard! Do not disconnect under load!
- Ensure you select the correct battery system (lithium or lead-acid) to prevent system malfunction.
- Read all instructions and cautionary markings on the unit, batteries, and this manual before use.
- All electrical operations and connections must be performed by a professional electrical or mechanical engineer.
- All electrical installations must comply with local electrical safety standards.
- When installing PV modules during daytime, cover them with opaque materials to avoid high terminal voltage.
- To reduce risk of injury, charge only deep-cycle lead-acid or lithium rechargeable batteries. Other battery types may burst.
- Do not disassemble the unit. Refer servicing to a qualified service center. Incorrect re-assembly poses a risk of electric shock or fire.
- Disconnect all wiring before maintenance or cleaning. Turning off the unit alone does not eliminate this risk.
- NEVER charge a frozen battery.
- Use appropriate cable sizes for optimum inverter operation.
- Exercise caution when working with metal tools near batteries to prevent short circuits or explosions.
- Strictly follow installation procedures when disconnecting AC or DC terminals.
- The inverter must be connected to a permanent grounded wiring system, complying with local regulations.
- NEVER short circuit AC output and DC input. Do NOT connect to mains when DC input is short-circuited.
- Ensure the inverter is completely assembled before operation.
- Start maintaining the INVERTER at least 5 minutes after it has been disconnected from all external power supplies.
- Read instructions carefully before performing any operation on the INVERTER.
- Grounding: The system must be firmly grounded for operator safety.
3. Setup (Installation)
3.1 Unpacking and Inspection
Products are strictly tested before leaving the factory. Inspect the product upon receipt for any damage to the outer packaging or internal equipment. If damaged, contact your local distributor immediately.
3.2 Installation Tools
The following tools are recommended for installation:
| Tool | Purpose |
|---|---|
| Multi-meter | Electrical measurements |
| Protective gloves | Safety |
| Insulated anti-smashing shoes | Safety |
| Safety glasses | Eye protection |
| ESD wrist strap | Electrostatic discharge protection |
| Hammer drill | Drilling mounting holes |
| Electric screwdriver | Fastening screws |
| Cross screwdriver | Fastening screws |
| Rubber mallet | Gentle tapping |
| Spirit level | Ensuring level installation |
| Wire cutter / stripper | Preparing cables |
| Terminal crimping tool | Securing cable terminals |
3.3 Mounting Unit
Consider the following points when selecting an installation location:
- Do not mount the inverter on flammable construction materials.
- Mount on a solid, non-combustible surface (e.g., concrete).
- Install at eye level for easy LCD display readability.
- Maintain an ambient temperature between -10°C and 60°C for optimal operation.
- Adhere to vertical wall mounting.
- Ensure sufficient space (at least 30cm on top, bottom, and sides) for heat dissipation and wiring access.
Installation Steps:
- Use an Ø8 drilling bit to drill holes on the mounting surface. The distance between holes should be 110mm. Insert M6 expansion screw tubes.
- Vertically align the inverter's top screw holes with the installed expansion screw tubes and fix the inverter using screws.
- Before connecting wiring, remove the bottom cover by unscrewing four screws.
3.4 AC Input / Output Connection
CAUTION! Install a separate AC breaker (recommended 80A) between the inverter and AC input power source for maintenance and overcurrent protection.
CAUTION! Do not mis-connect 'AC IN', 'AC OUT1', 'AC OUT2' terminals. Ensure correct AC cable polarity (L and N wires) to prevent utility short-circuits in parallel operation.
WARNING! All wiring must be performed by qualified personnel. Use appropriate cable sizes for system safety and efficient operation.
Recommended AC Input Wires:
| Gauge | Cable (mm²) |
|---|---|
| 6 AWG | 13.3 |
Recommended AC Output Wires:
| Terminal | Gauge | Cable (mm²) |
|---|---|---|
| AC OUT1 (Max current is 70A) | 6 AWG | 13.3 |
| AC OUT2 (Max current is 40A) | 10 AWG | 5.26 |
WARNING! AC OUT2 terminal cannot be connected with a load current > 40A, or an error will be raised.
WARNING! Ensure AC power is disconnected before connecting to the unit. All operations must comply with local laws and regulations.
AC Input (AC IN) Connection Steps:
- Open the AC circuit breaker before making connections.
- Remove 12mm of insulation from cable ends, shorten conductor to 10mm. Insert into tubular terminal and crimp tightly.
- Insert AC input cables according to polarities (PE: yellow-green, L: brown/black, N: blue) and tighten terminal screws. Connect PE protective cable first.
- Ensure cables are securely connected.
AC Output (OUT1/OUT2) Connection: Follow the same steps as AC input connection for L (LINE) and N (Neutral) cables.
CAUTION! Appliances like air conditioners require a 2-3 minute restart delay. Ensure your air conditioner has a time-delay function to prevent damage from short power interruptions.
3.5 PV Connection
CAUTION! Install a separate DC circuit breaker between the inverter and PV modules.
WARNING! Do not ground positive or negative terminals of PV modules; this can severely damage the inverter. Exposure to sunlight can generate lethal high voltages in PV strings. Connect PV terminals to corresponding ports; reversing polarity can damage the inverter. All wiring must be performed by qualified personnel.
Recommended PV Module Connection Cable:
| Gauge | Cable (mm²) |
|---|---|
| 10AWG | 5.26 |
PV Module Selection Parameters:
- Open circuit Voltage (Voc) of PV modules must not exceed the inverter's max. PV array open circuit voltage (500Vdc).
- Open circuit Voltage (Voc) of PV modules should be higher than the inverter's start-up voltage (80Vdc).
- PV Array MPPT Voltage Range: 60Vdc~450Vdc.
PV Module Connection Steps:
- Open the DC circuit breaker before making PV connections.
- Remove 12mm of insulation from cable ends, shorten conductor to 10mm. Insert into tubular terminal and crimp tightly.
- Use a multi-meter to check for correct polarities.
- Insert PV cables according to polarities (PV+: red, PV-: black) and tighten terminal screws.
- Ensure cables are securely connected.
- PV1 and PV2 can be connected to different panel strings. If connected to the same string, change setting 62 to enable PV parallel mode.
3.6 Battery Connection
CAUTION! Install a separate DC over-current protector or disconnect device (recommended 250A) between the battery and inverter.
WARNING! All wiring must be performed by qualified personnel. Use appropriate cable sizes for battery connection. Ensure AC power is disconnected before connecting to the unit.
Recommended Battery Cable and Terminal Size:
| Gauge | Cable (mm²) |
|---|---|
| 000 AWG | 85 |
Lead-acid Battery Connection Steps:
- Unscrew pre-fixed screws on battery poles. Prepare 2 DT terminals.
- Remove 12mm of insulation from cable ends, shorten conductor to 10mm. Insert into DT terminal and crimp tightly.
- Pass the battery cable through the battery installation hole on the bottom shell and tighten terminal screws. Ensure correct polarity at both the battery and inverter.
- Connect all battery packs as required. A minimum of 200Ah capacity battery is suggested.
WARNING! Shock Hazard! Installation must be performed with care due to high battery voltage in series.
CAUTION! Do not place anything between the inverter terminal and the DT terminal to prevent overheating. Do not apply anti-oxidant substance on terminals before connecting. Ensure positive (+) is connected to positive (+) and negative (-) to negative (-) before final DC connection.
Lithium Battery Connection Steps:
Check battery compatibility and protocol first. Lithium batteries have two connectors: an RJ45 port for BMS and a power cable.
- Follow section 3.5.1 for power cable connection.
- 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.
- Insert the other end of the RJ45 cable to the battery communication port of the lithium battery.
Lithium Battery Communication and Setting:
- Set battery type to 'Lib' or 'FEL' in Section 4.2.2 Program 17.
- Ensure the lithium battery BMS port connects to the inverter with a Pin-to-Pin cable.
- For parallel systems, connect the BMS communication cable between the battery and one inverter.
3.7 Meter Connection
The inverter can connect to an external meter installed at the grid side for precise grid-tied function. The inverter's RS485A and RS485B in the BMS interface are used for meter connection. Ensure the meter model and communication protocol are supported by the inverter.
3.8 Smart Communication Stick Connection (Optional)
The smart communication stick (WIFI) connects the inverter to a cloud platform. Insert the stick directly into the COM port. For models with built-in WIFI, refer to the solar APP quick configuration guide.
3.9 Final Assembly
After connecting all wiring, reattach the bottom cover by screwing in the four screws mentioned in Section 3.2.
4. Operation
4.1 Power ON/OFF
Once the unit is properly installed and batteries are connected, 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 front panel of the inverter features an operation and display panel, including four indicators, four function keys, and an LCD display for operating status and input/output power information.
4.2.1 LCD Display Icons and LED Indicators
The LCD display provides various information and status indicators:
| Display Area | Description |
|---|---|
| Battery Information (Icon, Type, Voltage, Current) | Indicates battery icon, type (AGM, FLD, USER, Li-ion), charging stages (CC, CV, FLOAT), battery voltage, and charging/discharging current. |
| AC Input Information | Shows AC input icon, UPS/APP input mode, and AC input voltage/frequency. |
| PV Input Information | Displays PV input icon, power, voltage, and current for PV1 and PV2. |
| Output Information | Indicates output voltage, apparent power (VA/kVA), active power (W/kW), and output frequency. |
| Battery Capacity | Indicates current battery capacity. |
| Load Capacity | Indicates load capacity and overload icon. |
| AC OUTPUT2 Information | Shows second AC output icon and AC output 2 voltage. |
| Parameter Query, Function Setting or Fault/Alarm Information | Displays system information, function settings, and fault/alarm codes. |
LED Indicator Messages:
| Indicator | Status | Message |
|---|---|---|
| AC (Green) | Solid On | Mains power is normal and in operation. |
| AC (Green) | Flashing | Mains power is normal but not yet in operation. |
| AC (Green) | Off | Mains power is abnormal. |
| Invert (Yellow) | Solid On | Output powered by battery or PV in battery mode. |
| Invert (Yellow) | Off | Other states. |
| Charging (Yellow) | Solid On | Battery is in float charging. |
| Charging (Yellow) | Flashing | Battery is in constant voltage charging. |
| Charging (Yellow) | Off | Other states. |
| Fault (Red) | Solid On | Fault occurs in the inverter. |
| Fault (Red) | Flashing | Warning condition occurs in the inverter. |
| Fault (Red) | Off | Inverter is working properly. |
4.2.2 LCD Setting
Press and hold the ENTER button for 2 seconds to enter setting mode. Use 'UP' or 'DOWN' to select programs, then 'ENTER' to confirm or 'ESC' to exit.
Key settings include:
- Output Voltage (Program 01): Default 230V, adjustable (220V, 230V, 240V).
- Output Frequency (Program 02): Default 50Hz, adjustable (50Hz, 60Hz).
- Output Source Priority (Program 03): Options include Grid first, Solar first, MKS (Generator priority).
- Input Mode (Program 04): APP (Appliance), UPS (Computer), GEN (Generator).
- Charger Source Priority (Program 05): PNG (PV and Grid), OPV (Only PV), PVF (PV first).
- Grid Charging Current (Program 06): Default 60A, adjustable (2A-160A).
- Maximum Charging Current (Program 07): Default 100A, adjustable (2A-160A). Follows BMS data if connected.
- Menu Default (Program 08): ON (returns to first page after 1 min inactivity), OFF (stays on current page).
- Auto Restart when Overload Occurs (Program 09): ON (default).
- Auto Restart when Over Temperature Occurs (Program 10): ON (default).
- Main Input Cut Warning (Program 11): ON (default, buzzer sounds for 5s if grid input lost), OFF (no buzzer).
- Energy-saving Mode (Program 12): OFF (default). ON (in battery mode, if load < 25W/100VA, system stops output then resumes).
- Overload Transfer to Bypass (Program 13): OFF (default). ON (transfers to bypass mode on overload in PBG/MKS priority).
- Silent Mode Setting (Program 14): OFF (default). ON (buzzer silent for alarms/faults).
- Battery Return to Grid Voltage Point (Program 15): Default 46V (AGM/FLD), 47.6V (LIB/CUS), 49.6V (FEL). Adjustable.
- Switching Back to Battery Mode Voltage Points (Program 16): Default 52V (AGM/FLD), 54.4V (LIB/CUS), 53.2V (FEL). Adjustable.
- Battery Type (Program 17): AGM (default), Flooded, Lithium (Ternary), FEL (Lithium Iron), User-Defined.
- Battery Low Voltage Point (Program 18): Default 44V (AGM/FLD), 47.6V (LIB/CUS), 48V (FEL). Adjustable. Follows BMS if connected.
- Battery Shutdown Voltage Point (Program 19): Default 42V (AGM/FLD), 46V (LIB/CUS), 42V (FEL). Adjustable. Follows BMS if connected.
- Constant Voltage Mode Voltage Point Setting (Program 20): Default 56.4V (AGM), 58V (FLD), 56.4V (LIB/CUS), 55.2V (FEL). Adjustable. Follows BMS if connected.
- Floating Charge Mode Voltage Point Setting (Program 21): Default 54V (AGM/FLD), 55.2V (CUS/LIB), 54.4V (FEL). Adjustable. Follows BMS if connected.
- Grid Low Voltage Point (Program 22): Default 154V (APP/GEN), 185V (UPS). Adjustable.
- Grid High Voltage Point (Program 23): Default 264V (APP/GEN), not changeable (UPS). Adjustable.
- Automatic Turn Off Backlight (Program 24): ON (default, backlight off after 1 min inactivity).
- Inverter Soft Start Setting (Program 25): OFF (default, direct output). ON (gradual output increase).
- Reset Factory Setting (Program 26): Restores all settings to factory defaults.
- Battery Disconnection Alarm (Program 29): OFF (default, no alarm). ON (enables alarm).
- Equalization Voltage Point Setting (Program 31): Default 58.4V, adjustable (48V-60V).
- Equalization Charging Time Setting (Program 32): Default OFF, adjustable (5-900 minutes).
- Equalization Delay Time Setting (Program 33): Default 120 minutes, adjustable (5-900 minutes).
- Equalization Interval Time Setting (Program 34): Default 30 days, adjustable (1-90 days).
- Enable Equalization Immediately (Program 35): OFF (default). ON (activates equalization immediately).
- Grid-tie Inverter Function (Program 36): INT (feeds excess energy to grid), MET (controls feeding power based on meter data).
- Max Grid Tie Power (Program 37): Default 12.0kW, adjustable (0-12.0kW).
- Battery Dual Output Low Voltage Shutdown Point (Program 38): Default 48V, adjustable (44V-60V).
- Battery Dual Output Duration (Program 39): OFF (default). FUL (unlimited output). Adjustable (5-900 minutes).
- Dual Output Battery Mode Cut-off SOC (Program 40): Default 20, adjustable (5-90) and OFF.
- BMS Communication Function (Program 44): OFF (default). ON (enables communication with specific BMS protocols).
- BMS ID (Program 45): Default AtO (auto), adjustable (0-15, A-F for 10-15).
- Low SOC Shutdown (Program 46): Default 20, adjustable (5-50) and OFF.
- High SOC to Battery (Program 47): Default 90, adjustable (10-100) and OFF.
- Low SOC to Grid (Program 48): Default 50, adjustable (10-90) and OFF.
- Battery Max. Discharge Current (Program 61): Default OFF, adjustable (10-220A).
- PV Parallel Mode (Program 62): OFF (default, different PV strings). ON (same PV string).
4.2.3 Display Information
The LCD display cycles through various information by pressing 'UP' or 'DOWN'. If idle, it displays daily PV power generation (e.g., 2.5kWh).
Selectable information includes:
- P1: Daily PV power generation.
- P2: Total PV power generation.
- P3: Lithium battery voltage and current (displays ERR if BMS communication fails or function is disabled).
- P4: Lithium battery temperature and SOC (displays ERR if BMS communication fails or function is disabled).
- P5: Lithium battery rated capacity and remaining capacity (displays ERR if BMS communication fails or function is disabled).
- P6: Lithium battery maximum charging voltage and minimum discharging voltage (displays ERR if BMS communication fails or function is disabled).
- P7: Lithium battery maximum charging current and maximum discharging current (displays ERR if BMS communication fails or function is disabled).
- P8: Lithium battery alarm and fault information (displays ERR if BMS communication fails or function is disabled).
- P9: Inverter firmware version.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your ANERN Hybrid Solar Inverter. Always disconnect all power sources (AC, PV, Battery) and wait at least 5 minutes before performing any maintenance.
- Cleaning: Keep the inverter's vents and surfaces clean and free from dust and debris to ensure proper heat dissipation. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
- Connections: Periodically check all electrical connections (AC, PV, Battery) for tightness and signs of corrosion. Loose connections can lead to overheating and system malfunction.
- Battery Inspection: For lead-acid batteries, check electrolyte levels and terminal cleanliness. For lithium batteries, monitor BMS status via the display or monitoring app.
- Environmental Check: Ensure the installation environment remains within specified temperature and humidity ranges.
- Firmware Updates: Check for available firmware updates through the monitoring application or manufacturer's website to ensure optimal performance and access to new features.
- Professional Inspection: It is recommended to have a qualified technician inspect the system annually.
6. Troubleshooting
6.1 Fault Reference Code
When a fault occurs, the fault indicator (red LED) will be solid ON, and the buzzer will sound for 10 seconds then stop. The LCD will display a fault code. The system will attempt to restart automatically. If the machine does not work after six restarts, it will remain in fault status. Power off the unit completely or wait 15 minutes to restart.
| Fault Code | Meaning | Trigger Conditions | Resume Conditions |
|---|---|---|---|
| 1 | Bus boost fail | Grid soft start fails to reach bus voltage. | Restore after 15s at set voltage. |
| 2 | Bus over voltage | Bus voltage higher than set value. | Restore after 15s at set voltage. |
| 3 | Bus below voltage | Bus voltage lower than set value. | Restore after 15s. |
| 4 | Battery over current | Battery current higher than set value. | Cannot restore. |
| 5 | System over temperature | Temperature higher than set value or fan disconnected. | Restore after 15min at lower temp and fan connected. |
| 6 | Battery over voltage | Battery voltage higher than set value. | Restore after 15s at set voltage. |
| 7 | Bus soft start failed | Battery soft start fails to reach bus voltage. | Restore after 15s at set voltage. |
| 8 | Bus short circuit | Bus voltage lower than set value. | Cannot restore. |
| 9 | Inverter soft start failed | Inverter soft start fails to reach output voltage. | Restore after 15s at set voltage. |
| 11 | Inverter under voltage | Inverter voltage lower than set value in battery mode. | Restore after 15s at set voltage. |
| 12 | Inverter short circuit | Inverter voltage low and current high. | Restore after 15s at set value. |
| 13 | Inverter negative power | Inverter power negative and exceeds set value. | Restore after 15s at set value. |
| 14 | Over load | Load current higher than set value. | Restore after 15s at set value. |
| 17 | Program updating | Inverter updating or OTA. | Restore after updating. |
| 18 | PV reverse connection | PV reverse connection. | Restore after 15s of correct connection. |
| 26 | BMS fault | Error code in BMS message. | Restore after BMS fault resolved. |
| 29 | Inverter load abnormal | Abnormal inverter load leads to abnormal voltage. | Restore after 15s of voltage returning normal. |
6.2 Alarm Reference Code
When an alarm occurs, the inverter does not enter fault mode. The red LED flashes, and the LCD displays the alarm code. The buzzer sounds every second for 1 minute, then stops.
| Alarm Code | Meaning | Trigger Conditions | Resume Conditions |
|---|---|---|---|
| 50 | Battery open | Battery disconnected for >10 minutes. | Restore after battery connected for 2 minutes. |
| 51 | Battery under voltage | Battery voltage lower than BAU set value. | Restore after battery voltage exceeds BAU set value by 2V. |
| 52 | Battery low voltage | Battery voltage lower than BAL set value. | Restore after battery voltage exceeds BAL set value by 2V. |
| 53 | Battery charge short circuit | Battery voltage < 24V and charging current exists. | Restore after short circuit eliminated. |
| 56 | BMS loss | Communication failure after BMS function enabled. | Restore after communication function disabled or success. |
| 58 | Fan error | No fan speed signal detected. | Restore after fan speed signal detected. |
| 59 | EEPROM error | EEPROM read/write exception. | Cannot restore. |
| 60 | Overload | Mains current/battery discharge current/load power > rated value. | Restore after current/power < rated value. |
| 62 | PV energy weak | Battery not connected, bus voltage < set value. | Restore after battery/grid connected, or 10 minutes later. |
| 68 | Battery under SOC shutdown | BMS reports SOC lower than BSU set value. | Disable low SOC shutdown, disable BMS communication, or SOC > set value by 5%. |
| 69 | Battery below SOC warning | Lithium battery SOC < set value + 5% (grid/battery mode), or < set value + 10% (standby mode). | Disable low SOC shutdown, disable BMS communication, or SOC > set value by 10%. |
| 72 | Battery cannot startup | During standby, battery voltage < allowed startup voltage. | Restore after battery voltage > allowed startup voltage. |
| 77 | Grid power is unstable | Lost grid power 3 times within 5 minutes. | Restore after 5 minutes. |
| 78 | Meter Loss | Grid power connected, grid-tied inverter function set to Meter, but meter communication disconnected. | Restore after grid disconnected, or detection device not set to Meter, or meter communication restore. |
6.3 General Troubleshooting
| Problem | Fault Event | Trigger Conditions | What to do |
|---|---|---|---|
| LED screen display fault code 5 | Over temperature | PFC temperature exceeds protection threshold for >20s, or Alarm 58 lasts for 5s. | Check fan connection/wiring. If fan not connected for >5min, fault code 5 will be reported. |
| LED screen display fault code 12 | Inverter short circuit | In battery/standby mode, inverter voltage < 80V and current > 30A (responds within 100-120ms). | Check for short circuits at output terminals. Verify inverter voltage and current meet trigger conditions. |
| LED screen display fault code 58 | Fan malfunction | Any fan rotates < 8 times within 2s. | Check fan connection/loose wires. If connected, check fan detection circuit (soldering) or fan damage. |
| Unable to start | Battery | Voltage ≥11.5V/N required to start. Common reasons: improper calibration or insufficient battery voltage. | Check battery voltage sampling/calibration. Measure battery terminal voltage with multimeter. Configure battery voltage according to machine model. |
| Unable to start | Utility power | Check for short circuits at mains terminal. Check for wiring errors (e.g., mains input to output terminals). | |
| Unable to start | PV | Check if PV input voltage is too close to critical threshold. For low voltage versions, check main control software compatibility. | |
| PV not charging | Connecting wrong battery voltage can damage auxiliary power supply on PV side, causing power loss and communication failure. |
7. Battery Equalization
The equalization function in the charge controller reverses negative chemical effects like stratification and removes sulfate crystals, which can reduce battery capacity. It is recommended to equalize batteries periodically. Note: Do not activate this mode when using lithium batteries.
How to Apply Equalization Function:
Enable battery equalization in LCD setting Program 32 (by setting time) or Program 35 (immediate equalization). Then, configure the following:
- Set equalization voltage point on Program 31.
- Set equalization charging time on Program 32.
- Set equalization delay time on Program 33.
- Set equalization interval time on Program 34.
- Set immediate equalization mode activation on Program 35.
When to Equalize:
In float stage, when the set equalization interval is reached or immediate equalization is active, the controller will enter the Equalize stage.
Equalize Charging Time and Timeout:
During the Equalize stage, the controller charges the battery until it reaches the equalization voltage, then maintains this voltage. The battery remains in this stage until the set equalized time is reached.
If the battery voltage does not rise to the equalization voltage point by the end of the set time, the charge controller extends the equalized time until the battery achieves the equalization voltage. If the battery voltage is still below the equalization voltage after the extended timeout, the charge controller stops equalization and returns to the float stage.
8. Specifications
| Category | Parameter | Value |
|---|---|---|
| AC Input | Rated Input Voltage (VAC) | 220/230/240; L+N+PE |
| Voltage Range (VAC) | 90~280 (APP mode); 170~280 (UPS mode) | |
| Frequency (Hz) | 50/60 (Auto Adaptive) | |
| AC Output | Rated Capacity (kW) | 12 (Max current of AC output 1 is 70A. Max current of AC output 2 is 40A) |
| Surge Power (kVA) | 24 | |
| Voltage (VAC) | 220/230/240 | |
| Power Factor (PF) | 1 | |
| Frequency (Hz) | 50/60±0.1% | |
| Switch Time (ms) | 10 (APP/UPS mode) / 20 (GEN mode) | |
| WaveForm | Pure Sine Wave | |
| Overload Capacity (Battery Mode) | 1min@ 102%~125% load; 10s@ >125% load | |
| Max. Efficiency (Battery Mode) | 94%@48V | |
| Charger (PV/AC) | Solar Charger Type | MPPT |
| Max PV Input Current/Power | Single PV Input: 27A/9000W; Dual PV Input: 22.5*2A/15000W | |
| MPPT Range@Operating Voltage (VDC) | 60~450 | |
| PV Start-up Voltage | 80Vdc | |
| Max PV Open Circuit Voltage (VDC) | 500 | |
| Max PV Charge Current (A) | 160 | |
| Max AC Charge Current (A) | 160 | |
| Max. Charge Current (PV+AC) (A) | 160 | |
| Battery | Normal Voltage (VDC) | 48 |
| Battery Type | Lithium and Lead-acid | |
| General Data | HMI | LCD |
| Interface | RS232/RS485/CAN | |
| Monitoring | WiFi(Optional) | |
| Ingress Protection | IP21 | |
| Operating Temperature | -10°C~60°C | |
| Relative Humidity | 5%~95% (Non-condensing) | |
| Storage Temperature | -15°C~60°C | |
| Max. Operating Altitude | 4000m (Derating above 1000m) |
Note: Updates to the content and version of this manual will not be notified separately.
For a detailed comparison of models, refer to the following:
9. User Tips
- WiFi Monitoring: While the inverter is generally reliable, some users have reported issues with the WiFi application displaying incorrect parameters. If you encounter this, ensure your app is updated, check inverter settings, or consider alternative monitoring solutions if available. If WiFi is not essential for your setup, models without WiFi are available.
- Fan Operation: The inverter's fans run continuously. They are generally not excessively noisy without load, comparable to a computer power supply. This is normal operation for cooling.
- Grid Feedback: The inverter supports feeding excess energy back into the grid, depending on the 'Grid-tie Inverter Function' setting (Program 36). This allows for managing energy produced but not consumed.
- Parallel Operation: The inverter supports parallel operation. If you intend to use multiple inverters in parallel, ensure proper configuration and consult the manual for specific instructions on connecting multiple units.
- Ease of Setup: Many users find the inverter easy to set up, indicating a straightforward installation process when following the manual.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized ANERN dealer or the point of purchase. Ensure you have your product model and serial number available when seeking support.
A PDF version of the user manual is available for download: User Manual (PDF).