1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your ANENJI Hybrid Solar Inverter/Charger. Please read this manual thoroughly before installation and use, and keep it for future reference.
The ANENJI Hybrid Solar Inverter is a versatile power solution designed for off-grid photovoltaic systems. It features a pure sine wave output, a built-in 100A MPPT solar charger, and supports operation with or without batteries. It is compatible with LiFePO4 batteries and offers Wi-Fi remote monitoring capabilities.
2. Important Safety Warnings
- Shock Hazard: Installation must be performed with care due to high battery voltage in series. All wiring must be performed by qualified personnel.
- Overheating: Do not place anything between the flat part of the inverter terminal. Overheating may occur.
- Terminal Connections: Do not apply anti-oxidant substance on the terminals before terminals are connected tightly. Ensure correct polarity (+ to + and - to -) when making DC connections.
- AC Breaker: Install a separate AC breaker between the inverter and AC input power source for secure disconnection during maintenance and over-current protection.
- Appliance Protection: Appliances like air conditioners require 2-3 minutes to restart. Ensure your appliances have a time-delay function to prevent damage from short power outages.
- Mounting: Mount the unit on a solid, non-combustible surface (e.g., concrete) at eye level for easy LCD reading. Ensure adequate clearance (20cm top/bottom, 50cm sides) for heat dissipation and wiring access.
3. Product Overview
The ANENJI Hybrid Solar Inverter/Charger integrates a solar inverter, AC charger, and solar charger into one unit. Below is an overview of its components and a typical system diagram.
Components:
- LCD display
- Status indicator
- Charging indicator
- Fault indicator
- Function buttons (ESC, UP, DOWN, ENTER)
- Battery input
- RS485 communication port
- Grounding
- WiFi antenna port
- AC input
- AC output
- PV input
- Power on/off switch
- Dry contact port
This diagram illustrates how the solar panel, generator, utility grid, and battery can be connected to the inverter to power various home loads.
4. Installation
4.1 Unpacking and Inspection
Before installation, carefully inspect the unit for any damage. The package should contain:
- Inverter unit x 1
- User manual x 1
- WiFi antenna x 1
4.2 Preparation
Before connecting any wiring, remove the bottom port cover by unscrewing the two screws as shown in the wiring guide video.
4.3 Mounting the Unit
Select a mounting location that is solid, non-combustible, and allows for proper ventilation. The inverter should be mounted vertically at eye level. Ensure a minimum clearance of 20cm at the top and bottom, and 50cm on the sides for heat dissipation and wiring access. Use M4 or M5 screws for mounting.
4.4 Battery Connection
It is crucial to install a separate DC over-current protector or disconnect device between the battery and the inverter. All wiring must be performed by qualified personnel. Use appropriate cable sizes and terminals as specified below:
| Model | Maximum Amperage | Battery Capacity | Wire Size | Cable mm² | Terminal Size (L/W/D mm) | Torque Value |
|---|---|---|---|---|---|---|
| 3KVA | 137A | 200AH | 2AWG | 35 | 37 / 15.3 / 6.4 | 4~6 Nm |
Steps for Battery Connection:
- Prepare battery positive and negative cables according to the recommended specifications.
- Connect all battery packs as required.
- Insert battery cables flatly into the battery connector of the inverter and tighten the bolts with a torque of 4-6 Nm. Ensure correct polarity.
4.5 AC Input/Output Connection
Before connecting to the AC input power source, install a separate AC breaker (recommended 50A) between the inverter and the AC input source. This ensures safe disconnection and over-current protection. There are two terminal blocks: 'IN' for AC input and 'OUT' for AC output. Do NOT mis-connect them.
| Model | Gauge | Torque Value |
|---|---|---|
| 3KVA | 10AWG | 1.4~1.6 Nm |
Steps for AC Input/Output Connection:
- Before making connections, open the DC protector or disconnector.
- Remove 10mm of insulation from the six conductors. Shorten phase L and neutral conductor N by 3mm.
- Insert AC input wires according to polarities (L, N) indicated on the terminal block and tighten screws. Connect the PE protective conductor (ground) first.
- Insert AC output wires according to polarities (L, N) and tighten screws. Connect the PE protective conductor (ground) first.
- Ensure all wires are securely connected.
4.6 PV Connection
Before connecting PV modules, install a separate DC circuit breaker between the inverter and PV modules. All wiring must be performed by qualified personnel. Use appropriate cable sizes and terminals as specified below:
| Model | Typical Amperage | Cable Size | Torque |
|---|---|---|---|
| 3KVA | 27A | 10 AWG | 1.4~1.6 Nm |
PV Module Selection:
- Open circuit Voltage (Voc) of PV modules must not exceed the max. PV array open circuit voltage of the inverter (500VDC).
- Open circuit Voltage (Voc) of PV modules should be higher than the min. battery voltage.
| Parameter | 3KVA |
|---|---|
| Max. PV Array Open Circuit Voltage | 500VDC |
| PV Array MPPT Voltage Range | 60VDC~500VDC |
| Max. PV INPUT CURRENT | 27A |
PV Module Wire Connection Steps:
- Remove 6mm of insulation for positive and negative conductors.
- Check correct polarity of connection cable from PV modules and PV input connectors. Connect positive pole (+) to positive pole (+) of PV input connector. Connect negative pole (-) to negative pole (-) of PV input connector.
- Ensure all wires are securely connected.
4.7 Final Assembly
After connecting all wirings, reinstall the bottom port cover by screwing the two screws back into place.
5. Operation
5.1 Power ON/OFF
Once the unit is properly installed and batteries are connected, press the Power ON/OFF switch (located on the side of the unit) to turn on the inverter.
5.2 Operation and Display Panel
The front panel features an LCD display, three indicators (Status, Charging, Fault), and four function buttons (ESC, UP, DOWN, ENTER) to monitor and control the inverter.
| LED Indicator | Color | Status | Message |
|---|---|---|---|
| AC/INV | Green | Solid On | Output is powered by utility in Line mode. |
| Flashing | Output is powered by battery or PV in battery mode. | ||
| CHG | Green | Solid On | Battery is fully charged. |
| Flashing | Battery is charging. | ||
| FAULT | Red | Solid On | Fault occurs in the inverter. |
| Flashing | Warning condition occurs in the inverter. |
| Function Key | Description |
|---|---|
| ESC | To exit setting mode |
| UP | To go to previous selection |
| DOWN | To go to next selection |
| ENTER | To confirm the selection in setting mode or enter setting mode |
5.3 LCD Setting
To enter setting mode, press and hold the ENTER button for 3 seconds. Use UP/DOWN to select programs and ENTER to confirm, or ESC to exit.
Key Settings:
- Program 01: Output source priority (Utility first, Solar first, SBU priority, SUB priority, SUF priority)
- Program 02: Maximum charging current (60A default, configurable)
- Program 03: AC input voltage range (Appliances, UPS, Generator)
- Program 05: Battery type (AGM, User-Defined, Lithium battery without communication)
- Program 06: Auto restart when overload occurs (Restart disable/enable)
- Program 07: Auto restart when over temperature occurs (Restart disable/enable)
- Program 08: Output voltage (110V, 115V, 120V default)
- Program 09: Output frequency (50Hz, 60Hz default)
- Program 10: Auto bypass (manual/auto)
- Program 11: Maximum utility charging current (30A default)
- Program 12: Setting voltage point back to utility source (for SBU/Solar first priority)
- Program 13: Setting voltage point back to battery mode (for SBU/Solar first priority)
- Program 16: Charger source priority (Solar first, Solar and Utility, Only Solar)
- Program 18: Buzzer mode (various modes for audible alerts)
- Program 19: Auto return to default display screen (enable/disable)
- Program 20: Backlight control (on/off)
- Program 23: Overload bypass (enable/disable)
- Program 25: Modbus ID Setting (001-247)
- Program 26: Bulk charging voltage (C.V voltage) (configurable if User-Defined battery type)
- Program 27: Floating charging voltage (configurable if User-Defined battery type)
- Program 29: Low DC cut-off voltage (configurable if User-Defined battery type)
- Program 32: Bulk charging time (C.V stage) (Automatically/5 min/900 min)
- Program 33: Battery equalization (Enable/Disable)
- Program 34: Battery equalization voltage (24V models: 29.2V default, range 24.0V-31.0V)
- Program 35: Battery equalized time (60min default, range 0-900 min)
- Program 36: Battery equalized timeout (120min default, range 0-900 min)
- Program 37: Equalization interval (30 days default, range 1-90 days)
- Program 38: Allow neutral and grounding of AC output (Enable/Disable)
- Program 39: Equalization activated immediately (Enable/Disable)
- Program 41: Automatic activation for lithium battery (Enable/Disable)
- Program 42: Manual activation for lithium battery (Enable/Disable)
- Program 43: Setting SOC point back to utility source (for SBU/Solar first priority)
- Program 44: Setting SOC point back to battery mode (for SBU/Solar first priority)
- Program 45: Low DC cut-off SOC (20% default, range 3%-30%)
- Program 46: Maximum discharge current protection (Only available in Single model)
- Program 48: Lithium battery activation time (6s default, range 6s-300s)
5.4 Setting for Lithium Battery
If using a lithium battery, ensure the BMS communication cable is connected between the battery and the inverter. This cable facilitates information exchange and signal control. The inverter's RS485 port pin assignment is provided in the manual.
LCD Setting for Lithium Battery:
- Select program 05 as 'Lithium battery type'.
- Confirm program 12/13/29/31/41/42 setting values.
If communication is successful, the LCD will display a 'Li' icon, which flashes to indicate charging status or SOC percentage.
PYLON US2000 Lithium Battery Setting:
The inverter supports PYLONTECH US2000 lithium batteries. Dip switches on the battery set the baud rate and battery group address. 'ON' is position '1', 'OFF' is position '0'. Dip 1 'ON' sets baud rate to 9600. Dips 2, 3, and 4 are for battery group address.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter. Keep the unit clean and free from dust. Ensure proper ventilation and check all connections periodically for tightness and corrosion. Refer to the troubleshooting section for common issues.
6.1 Battery Equalization
The inverter includes a battery equalization function to reverse the buildup of negative chemical effects like stratification and sulfation, which can reduce battery capacity. It is recommended to equalize batteries periodically.
How to Apply Equalization:
- Enable battery equalization in LCD setting program 33.
- Set the equalization interval in program 37, or activate immediately in program 39.
The equalization process involves charging the battery to a specific equalization voltage and maintaining it for a set time. If the battery voltage does not reach the target within the timeout, equalization will stop, and the inverter will return to float stage.
7. Troubleshooting
This section provides solutions for common problems encountered with the inverter. Refer to the LCD/LED indicators and fault codes for diagnosis.
| Fault Code | Fault Event |
|---|---|
| 01 | Over temperature of inverter module |
| 02 | Over temperature of DCDC module |
| 03 | Battery voltage is too high |
| 04 | Over temperature of PV module |
| 05 | Output short circuited. |
| 06 | Output voltage is too high. |
| 07 | Overload time out |
| 08 | Bus voltage is too high |
| 09 | Bus soft start failed |
| 10 | PV over current |
| 11 | PV over voltage |
| 12 | DCDC over current |
| 13 | Over current or surge |
| 14 | Bus voltage is too low |
| 15 | Inverter failed (Self-checking) |
| 18 | Op current offset is too high |
| 19 | Inverter current offset is too high |
| 20 | DC/DC current offset is too high |
| 21 | PV current offset is too high |
| 22 | Output voltage is too low |
| 23 | Inverter negative power |
| Warning Code | Warning Event | Audible Alarm |
|---|---|---|
| 02 | Temperature is too High | Beep three times every second |
| 04 | Low battery | Beep once every second |
| 07 | Overload | Beep once every 0.5 second |
| 10 | Output power derating | Beep twice every 3 seconds |
| 14 | Fan blocked | None |
| 15 | PV energy is low | Beep twice every 3 seconds |
| 19 | Lithium Battery communication is failed | Beep once every 0.5 second |
| 21 | Lithium Battery over current | None |
| E9 | Battery equalization | None |
| bP | Battery is not connected | None |
Troubleshooting Steps:
- Unit shuts down automatically during startup: Battery voltage too low. Recharge or replace battery. Check battery wiring.
- No response after power on: Battery voltage too low or polarity reversed. Check battery connections, recharge, or replace battery.
- Mains exist but unit works in battery mode: Insufficient AC power quality or AC breaker tripped. Check AC wires, generator, or input voltage range setting.
- LCD/LEDs flashing repeatedly: Battery disconnected. Check battery wires.
- Fault code 07 (Overload): Reduce connected load.
- Fault code 05 (Output short circuited): Check wiring and remove abnormal load.
- Fault code 02 (Over temperature): Check for blocked airflow or high ambient temperature.
- Fault code 03 (Battery over-charged/voltage too high): Check battery specifications and quantity.
- Fault code 06/22 (Output abnormal): Reduce connected load or return to repair center.
- Fault code 08/09/15 (Internal components failed): Return to repair center.
- Fault code 13 (Over current or surge): Restart unit. If error persists, return to repair center.
- Fault code 14 (Bus voltage too low): Check wiring. If wires are connected well, return to repair center.
8. Specifications
Below are the detailed technical specifications for the ANENJI Hybrid Solar Inverter/Charger (Model: ANJ-3KW-24V-LV-WIFI).
8.1 Line Mode Specifications (Table 1)
| Parameter | 3KVA |
|---|---|
| Input Voltage Waveform | Sinusoidal (utility or generator) |
| Nominal Input Voltage | 120Vac |
| Low Loss Voltage | 95Vac±7V (UPS); 70Vac±7V (Appliances) |
| Low Loss Return Voltage | 100Vac±7V (UPS); 75Vac±7V (Appliances) |
| High Loss Voltage | 140Vac±7V |
| High Loss Return Voltage | 135Vac±7V |
| Max AC Input Voltage | 150Vac |
| Nominal Input Frequency | 50Hz / 60Hz (Auto detection) |
| Low Loss Frequency | 40±1Hz |
| Low Loss Return Frequency | 42±1Hz |
| High Loss Frequency | 65±1Hz |
| High Loss Return Frequency | 63±1Hz |
| Output Short Circuit Protection | Battery mode: Electronic Circuits |
| Efficiency (Line Mode) | >95% (Rated R load, battery full charged) |
| Transfer Time | 10ms typical (UPS); 20ms typical (Appliances) |
8.2 Inverter Mode Specifications (Table 2)
| Parameter | 3KVA |
|---|---|
| Rated Output Power | 3.0KVA/3.0KW |
| Output Voltage Waveform | Pure Sine Wave |
| Output Voltage Regulation | 120Vac±5% |
| Output Frequency | 50Hz or 60Hz |
| Peak Efficiency | 94% |
| Surge Capacity | 2* rated power for 5 seconds |
| Nominal DC Input Voltage | 24Vdc |
| Cold Start Voltage | 23.0Vdc |
| No Load Power Consumption | <55W |
| Low DC Warning Voltage (AGM/Flooded) | @load < 20%: 22.0Vdc; @20% ≤ load < 50%: 21.4Vdc; @load ≥ 50%: 20.4Vdc |
| Low DC Warning Return Voltage (AGM/Flooded) | @load < 20%: 23.0Vdc; @20% ≤ load < 50%: 22.4Vdc; @load ≥ 50%: 21.2Vdc |
| Low DC Cut-off Voltage (AGM/Flooded) | @load < 20%: 21.0Vdc; @20% ≤ load < 50%: 20.4Vdc; @load ≥ 50%: 19.2Vdc |
8.3 Charge Mode Specifications (Table 3)
| Parameter | 3KVA |
|---|---|
| Max Charging Current (PV+AC) | 100Amp |
| Max Charging Current (AC) | 60Amp |
| Bulk Charging Voltage (Flooded) | 29.2Vdc |
| Bulk Charging Voltage (AGM / Gel Battery) | 28.2Vdc |
| Floating Charging Voltage | 27Vdc |
| Overcharge Protection | 32Vdc |
| Charging Algorithm | 3-Step |
8.4 Solar Input Specifications
| Parameter | 3KVA |
|---|---|
| Rated Power | 4000W |
| Max. PV Array Open Circuit Voltage | 500Vdc |
| PV Array MPPT Voltage Range | 60Vdc~500Vdc |
| Max. Input Current | 27A |
| Max. Charging Current(PV) | 100A |
8.5 General Specifications (Table 4)
| Parameter | 3KVA |
|---|---|
| Operating Temperature Range | -10°C to 55°C |
| Storage temperature | -15°C~60°C |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) |
| Dimension(D*W*H), mm | 350x312x110 |
| Net Weight, kg | 6.9 |
9. Wi-Fi Plug Pro Quick Installation Guideline
The inverter includes a built-in Wi-Fi module for remote monitoring. Follow these steps to set up the Wi-Fi connection.
9.1 Install the Wireless Antenna
Attach the wireless antenna to the designated port on the inverter. Refer to the schematic diagram for proper placement.
9.2 Add Datalogger via App
- Login to the SmartESS app and click the 'Datalogger' button. Tap the '+' button in the top-right corner.
- Follow the prompts to enter the necessary information to add the datalogger. The PN number is located next to the machine appliance label. The initial password is 12345678.
9.3 Download the SmartESS App
- Scan the QR code provided in the manual (or search 'SmartESS' in your app store) to download the app.
- Open the app, click 'Registration', and select 'Mobile phone Registration' or 'Email Registration'.
- Turn on Bluetooth or Wi-Fi as needed on your mobile device.
9.4 Bluetooth Connection to Digital Collector
- In the app, click 'Toolbox' and select 'BLE network' or 'Wi-Fi network'.
- If 'Bluetooth distribution network' is chosen, the app will scan for nearby devices. Find the PN corresponding to your digital collector and click 'Connect'.
9.5 Networking Settings
- Select the corresponding 2.4G Wi-Fi network, enter the password, and click 'Start Connecting to the Network'.
10. User Tips
- For optimal performance, ensure all wiring connections are tight and secure to prevent power loss and potential hazards.
- Regularly check the LCD display for any warning indicators or fault codes to address issues promptly.
- When configuring settings, it's advisable to complete all desired changes before turning on the inverter output to avoid unexpected behavior.
- If using lithium batteries, ensure proper communication setup and verify the correct battery type is selected in the LCD settings for accurate charging and discharge management.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized dealer or the manufacturer directly. Keep your purchase receipt and product serial number handy for faster service.