1. Introduction
This multi-function inverter/charger combines the functions of an inverter, MPPT solar charger, and battery charger to provide uninterruptible power support. It features a portable design and a comprehensive LCD display for user-configurable settings such as battery charging current, AC/solar charger priority, and acceptable input voltage for various applications.
1.1. Features
- Pure sine wave inverter
- Inverter running without battery
- Built-in MPPT solar controller
- Configurable input voltage range for home appliances and personal computers via LCD setting
- Configurable battery charging current based on applications via LCD setting
- Configurable AC/Solar Charger priority via LCD setting
- Compatible with mains voltage or generator power
- Auto restart while AC is recovering
- Overload/ Over temperature/ short circuit protection
- Smart battery charger design for optimized battery performance
- Cold start function
1.2. Basic System Architecture
The inverter/charger can be integrated into a system with a generator or utility, and optional PV modules. Consult with your system integrator for specific architectural requirements. This inverter is designed to power various home and office appliances, including motor-type appliances like tube lights, fans, refrigerators, and air conditioners.
2. Safety Instructions
WARNING: This chapter contains important safety and operating instructions. Read and keep this manual for future reference.
- Before using the unit, read all instructions and cautionary markings on the unit, the batteries, and all appropriate sections of this manual.
- CAUTION: To reduce risk of injury, charge only deep-cycle lead-acid type rechargeable batteries. Other types of batteries may burst, causing personal injury and damage.
- 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.
- To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
- CAUTION: Only qualified personnel can install this device with battery.
- NEVER charge a frozen battery.
- For optimum operation of this inverter/charger, please follow required specifications to select appropriate cable size. It's very important to correctly operate this inverter/charger.
- 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.
- 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.
- Fuse is provided as over-current protection for the battery supply.
- GROUNDING INSTRUCTIONS: This inverter/charger should be connected to a permanent grounded wiring system. Be sure to comply with local requirements and regulations to install this inverter.
- NEVER cause AC output and DC input short circuits. Do NOT connect to the mains when DC input short circuits.
- Warning!! Only qualified service persons are able to service this device. If errors still persist after following the troubleshooting table, please send this inverter/charger back to the local dealer or service center for maintenance.
3. Product Overview
The ANENJI 11KW Hybrid Solar Inverter/Charger features a robust design with an intuitive LCD display and function buttons for easy operation and monitoring. The unit's ports are located at the bottom for connections.
- LCD display
- Function buttons
- RGB Indicator
- Power on/off switch
- Battery negative/positive outlet hole
- Parallel communication port (only for parallel model)
- RS232 communication port (RJ45)
- RS485 communication port (RJ45)
- RS232 communication port (DB9)
- Dry contact port
- PV1 input
- PV2 input
- AC input
- Grounding
- Main output
- Second output
Note: RS232 communication port (DB9) and RS232 communication port (RJ45) cannot be used simultaneously; only one can be used at the same time.
4. Setup and Installation
4.1. Unpacking and Inspection
Before installation, carefully inspect the unit. Ensure that nothing inside the package is damaged. The package should contain:
- The unit x 1
- User manual x 1
- PV connector x 4
- Battery fuse x 1 (Only 11K model)
4.2. Preparation
Before connecting any wirings, remove the bottom cover by unscrewing the four screws.
4.3. Mounting the Unit
Consider the following points when selecting an installation location:
- Do not mount the inverter on flammable construction materials.
- Mount on a solid surface.
- Install this inverter at eye level to allow the LCD display to be read easily.
- The ambient temperature should be between 0°C and 55°C for optimal operation.
- The recommended installation position is vertically on a wall.
- Ensure sufficient clearance (20cm to sides, 50cm above and below) for heat dissipation and wire access.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.
Install the unit by screwing three M4 or M5 screws into the wall.
4.4. Battery Connection
CAUTION: For safety and regulation compliance, install a separate DC over-current protector or disconnect device between the battery and inverter. Even if a disconnect device is not required in some applications, over-current protection is still necessary.
WARNING! All wiring must be performed by qualified personnel.
WARNING! Use appropriate cables for battery connection to ensure system safety and efficient operation.
Recommended battery cable and terminal sizes:
| Model | Max. Amperage | Battery Capacity | Wire Size | Cable mm² | Torque Value |
|---|---|---|---|---|---|
| 8.5KVA | 180A | 400AH | 4AWG*2 | 25 | 10~12 Nm |
| 11.0KVA | 220A | 600AH | 2AWG*2 | 38 | 10~12 Nm |
Follow these steps for battery connection:
- Make positive and negative cables based on the recommended terminal size.
- Connect all battery packs as required. Use recommended battery capacity.
- Insert battery cables flatly into the inverter's battery connector. Ensure bolts are tightened with a torque of 10-12Nm. Verify correct polarity at both the battery and inverter/charger, and ensure battery cables are tightly screwed to the battery connector.
4.5. AC Input/Output Connection
CAUTION! Before connecting to an AC input power source, install a separate AC breaker between the inverter and the AC input power source. This ensures the inverter can be securely disconnected for maintenance and protected from overcurrent. The recommended AC breaker specification is 63A.
CAUTION! There are two terminal blocks labeled "IN" and "OUT". Do NOT mis-connect input and output connectors.
WARNING! All wiring must be performed by qualified personnel.
WARNING! Use appropriate cables for AC input connection to ensure system safety and efficient operation.
Suggested cable requirement for AC wires:
| Model | Gauge | Torque Value |
|---|---|---|
| All Models | 6 AWG | 1.2~1.4Nm |
Follow these steps for AC input/output connection:
- Before making AC input/output connections, ensure the DC protector or disconnector is open.
- Remove 10mm of insulation sleeve for six conductors. Shorten phase L and neutral conductor N by 3mm.
- Insert AC input wires according to the polarities indicated on the terminal block and tighten the terminal screws. Connect the PE protective conductor (yellow-green) first, then L (brown or black) and N (blue).
WARNING: Ensure the AC power source is disconnected before attempting to hardwire it to the unit.
- Insert AC output wires according to the polarities indicated on the terminal block and tighten the terminal screws. Connect the PE protective conductor (yellow-green) first, then L (brown or black) and N (blue).
CAUTION: Important: Ensure AC wires are connected with correct polarity. If L and N wires are connected reversely, it may cause utility short-circuiting when these inverters operate in dual output mode.
CAUTION: Appliances like air conditioners require 2-3 minutes to restart to balance refrigerant gas. If a power shortage occurs and recovers quickly, it can damage connected appliances. Check if your air conditioner has a time-delay function. Otherwise, the inverter/charger may trigger an overload fault and cut off output to protect the appliance, but internal damage may still occur.
4.6. PV Connection
CAUTION: Before connecting to PV modules, install a separate DC circuit breaker between the inverter and PV modules.
WARNING! All wiring must be performed by qualified personnel.
WARNING! Use appropriate cables for PV module connection to ensure system safety and efficient operation.
PV Module Selection: When selecting PV modules, consider these parameters:
- Open circuit Voltage (Voc) of PV modules must not exceed the max. PV array open circuit voltage of the inverter.
- Open circuit Voltage (Voc) of PV modules should be higher than the min. battery voltage.
Solar Charging Mode Specifications:
| INVERTER MODEL | 8.5KVA | 11.0KVA |
|---|---|---|
| Max. PV Array Open Circuit Voltage | 500VDC | |
| PV Array MPPT Voltage Range | 60VDC~500VDC | |
| Max. PV INPUT CURRENT | 18A*2 | |
PV Module Wire Connection:
- Remove 10mm of insulation sleeve for positive and negative conductors.
- Check correct polarity of connection cables from PV modules and PV input connectors. Connect positive (+) to positive (+) and negative (-) to negative (-).
- Ensure the wires are securely connected.
4.7. Final Assembly
After connecting all wirings, replace the bottom cover by screwing in the four screws.
Video 1: Solar Inverter Wiring Guide. This video demonstrates the steps for connecting the AC output and battery to the inverter, and then turning on the unit.
5. Operation
5.1. 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.
5.2. Operation and Display Panel
The front panel of the inverter features an LCD display, three indicators (RGB), and four function keys to show operating status and input/output power information.
RGB Indicator (Default) and Messages:
| Mode | Color | Status | Messages |
|---|---|---|---|
| Inverter mode | Green | Solid On | Output is powered by battery or PV in battery mode |
| Flashing | Battery is charging with 2s-on and 1s-off | ||
| AC mode | Blue | Solid On | Output is powered by AC or PV in AC mode |
| Flashing | Battery is charging with 2s-on and 1s-off | ||
| Standby mode | Cyan | Solid On | Battery is fully charged or isn't charged |
| Flashing | Battery is charging with 2s-on and 1s-off | ||
| Fault mode | Red | Solid On | Fault occurs in the inverter. |
| Bypass mode | Purple | Solid On | Working in AC mode without charging |
| Charging mode | Yellow | Solid On | Battery is fully charged, when switch is off |
| Flashing | Battery is charging, when switch is off |
Function Keys:
| 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 Display
The LCD display information can be switched by pressing keys. All information is shown in areas 1/2/3/4/5/6.
LCD Display Explanation:
- Area 1: Shows PV data (voltage/current/power).
- Area 2: Shows battery data (voltage/current/power/SOC).
- Area 3: Shows AC output data (voltage/current/power/percentage/frequency).
- Area 4: Shows AC input data (voltage/current/power/percentage/frequency).
- Area 5: Shows setting program code/Eco/buzzer/error/warning.
- Area 6: Shows power generation/time/date.
LCD Data Polling Display Mode:
- Simultaneously polling data: Press “UP” or “DOWN” to show all data from Area 1 to Area 4 simultaneously. All data will update with pressing. Press ESC to return to initial data.
- Independent polling data: Data from Area 1-4 can be polled independently:
- Press "Enter" key, the circle icon of Area 1 will flash. Press "UP" or "DOWN" to display data for Area 1.
- Continue pressing "Enter" to cycle through Areas 2, 3, and 4, using "UP" or "DOWN" to display data for each area.
- After Area 4, pressing "Enter" again will return to Area 1.
LCD Setting Display:
Press and hold the "Enter" key for 3 seconds to enter setting mode. Use "UP" or "DOWN" to select programs, then "ENTER" to confirm or ESC to exit. In setting mode:
- Area 5: Shows setting program code.
- Area 6: Shows setting program meaning.
- Area 1: Shows setting minimum value (if applicable).
- Area 4: Shows setting maximum value (if applicable).
- Area 2: Shows setting program item.
- Area 3: Shows setting current value (editable).
Other Display:
Press and hold the "Down" key on the main menu page to view information in Area 6:
- Software Version
- Model code Version
- CPU type
- Hardware Version
5.4. LCD Setting Programs
The inverter offers various configurable settings accessible via the LCD. These settings are grouped into F0, F1, F2, F3, and F4 programs.
Setting F0 Programs (General Parameters):
| Program | Description | Selectable Option |
|---|---|---|
| 01 | AC input voltage range | Appliances (default): 90-280VAC; UPS: 170-280VAC; Generator: 170-280VAC (compatible with generators) |
| 02 | Power saving mode enable/disable | Saving mode disable (default): Inverter output not affected by low load. Saving mode enable: Inverter output off when load is low. |
| 03 | Overload bypass | Bypass disable (default): Unit transfers to line mode if overload occurs in battery mode. |
| 04 | Auto restart when overload occurs | Restart disable / Restart enable (default) |
| 05 | Auto restart when over-temperature occurs | Restart disable / Restart enable (default) |
| 06 | Auto bypass | Manual (default): Unit bypasses manually. Auto: Unit automatically bypasses if mains power is normal. |
| 07 | Auto return to default display screen | Return to default display screen (default): Returns after 1 min inactivity. Stay at latest screen: Stays on last screen. |
| 08 | Backlight control | Backlight on (default) / Backlight off |
| 09 | Buzzer mode | Mode 1 (Buzzer mute), Mode 2 (Buzzer sounds on input source change/warning/fault), Mode 3 (Buzzer sounds on warning/fault), Mode 4 (default: Buzzer sounds on fault) |
| 10 | Modbus ID Setting | Range: 001 (default) ~ 247 |
| 16 | Dry contact mode | Mode 1 (default): Signal to external device when battery voltage reaches warning level. Mode 2: Allow neutral and grounding of AC output to be connected. |
Setting F1 Programs (AC Output Parameters):
| Program | Description | Selectable Option |
|---|---|---|
| 01 | Output source priority | SUB priority (default): Solar->Utility->Battery. SBU priority: Solar->Battery->Utility. SUF priority: Solar energy feeds to grid if sufficient, otherwise utility supplies loads. |
| 02 | AC output mode | Single: Single phase application. Parallel: Parallel system. 3P1/3P2/3P3: 3-phase application (L1, L2, L3 phase). |
| 03 | Output voltage | 230V (default). Available: 220V, 230V, 240V. |
| 04 | Output frequency | 50Hz (default). Available: 50Hz, 60Hz. |
| 06 | Slave output source priority | OFF (default): Turn off slave output source priority. |
| 07-10 | Start/End timer setting for slave output source priority | 00 (default) for hours/minutes. Range: 00-23 for hours, 00-59 for minutes. |
| 11 | Second output (OP2) control | Enable (default): OP2 allowed. Disable: OP2 forbidden. (Only available in single system) |
| 12 | Setting OP2 overload warning point | Default: 50%. Range: 10%-100%. (Only available in single system) |
| 13-14 | Setting timer to turn on/off OP2 | 00 (default) for turn on, 23 (default) for turn off. Range: 00-23. (Only available in single system) |
Setting F2 Programs (Battery Parameters):
| Program | Description | Selectable Option |
|---|---|---|
| 01 | Battery type | AGM (default), Flooded, User-Defined, PYLON US2000 Protocol (3.5 Version), Standard communication Protocol 2, LIB (Lithium Battery) |
| 02 | Charger source priority | Solar first, Solar and Utility (default), Only Solar, Solar residual |
| 03 | Bulk charging voltage (C.V voltage) | 56.4V (default). Range depends on battery type (e.g., 48.0V-62V for non-LIB, 48.0V-58V for LIB). |
| 04 | Floating charging voltage | Default: 54.0V (non-LIB), 56.4V (LIB). Range depends on battery type and program 03. |
| 05 | Setting voltage or Soc point back to utility source when selecting "SBU priority" | Default: 46.0V (non-LIB), 52.0V (LIB). Range depends on battery type. Default: 50% (for SOC). |
| 06 | Setting voltage point back to battery mode when selecting "SBU priority" | Battery fully charged (default). Default: 95% (for SOC). |
| 07 | Setting cut off voltage point or SOC percentage on the Main output (OP1) | Default: 44.0V (non-LIB), 51.9V (LIB). Default: 22% (for SOC). |
| 08 | Setting cut off voltage point or SOC percentage on the second output (OP2) | Default: 42.0V (non-LIB), 50.0V (LIB). Default: 20% (for SOC). |
| 09 | Maximum charging current | 80A (default). Range: 10-140A (8.5KW), 10-160A (11.0KW). |
| 10 | Maximum utility charging current | 60A (default). Range: 5-120A. Max setting value must be less than program 09. |
| 11 | Slave charger source priority | OFF (default), Solar first, Solar and Utility (default), Only Solar, Solar residual. |
| 12-15 | Start/End timer setting for slave charger source priority | 00 (default) for hours/minutes. Range: 00-23 for hours, 00-59 for minutes. |
| 16 | Bulk charging time (C.V stage) | Automatically (default). Range: 5-900 min (increment 5 min). |
| 17 | Battery equalization | Battery equalization (enable) / Battery equalization disable (default). |
| 18 | Battery equalization voltage | Default: 58.4V. Range: Floating voltage (program 04 of F2) ~ 62V. |
| 19 | Battery equalized time | 60min (default). Range: 0-900min (increment 5 min). |
| 20 | Battery equalized timeout | 120min (default). Range: 0-900min (increment 5 min). |
| 21 | Equalization interval | 30days (default). Range: 1-90 days (increment 1 day). |
| 22 | Equalization activated immediately | Enable / Disable (default). |
| 23 | Manual activate the lithium battery setting | Active / Default: disable activation. |
| 24 | Automatic activation for lithium battery | Auto / Default: disable activation. |
| 25 | Max battery discharge current setting | OFF (default). Range: 50-500. |
| 26 | Lithium battery activation time | Default: 6s. Range: 6s-300s. |
Setting F3 Programs (Time Parameters):
| Program | Description | Selectable Option |
|---|---|---|
| 01 | Date setting | Set the machine date (year, month, day) |
| 02 | Time setting | Set the machine time (hours, minutes) |
Setting F4 Programs (System Parameters):
| Program | Description | Selectable Option |
|---|---|---|
| 01 | Reset all stored data of PV generated power and output load energy | Reserve data (default) / Reset generated energy data |
| 02 | RGB mode - Checking RGB Indicator table | Mode 1 (default): RGB LED working normally. Mode 2: RGB LED working only when unit is in fault mode. Mode 3: RGB LED is always OFF. Mode 4: RGB LED shows as Mode 1, indicates battery charge status, not flashing. Mode 5: RGB LED shows as Mode 1, indicates battery charge status, flashing. |
| 03 | RGB brightness adjustment | Adjust brightness from 30% to 100%. |
| 04-08 | RGB Light Color selection (Inverter, AC, Standby, Bypass, Charging Mode) | Red, Green, Blue, Cyan, Purple, Yellow, White, Pale cyan, Pale yellow, Pale blue, Pink. |
5.5. Battery Equalization
The equalization function helps reverse negative chemical effects like stratification and remove sulfate crystals from battery plates, which can reduce battery capacity. It is recommended to equalize batteries periodically.
How to Apply Equalization Function:
Enable battery equalization in monitoring LCD setting program 17 of F2. Then, apply this function by:
- Setting equalization interval in program 21 of F2.
- Activating equalization immediately in program 22 of F2.
When to Equalize:
In the float stage, when the set equalization interval is reached, or equalization is activated immediately, the controller will enter the Equalize stage.
Equalize Charging Time and Timeout:
In the Equalize stage, the controller supplies power to charge the battery until it reaches the battery equalization voltage. Constant-voltage regulation then maintains this voltage. The battery remains in Equalize stage until the set battery equalized time is reached.
If the battery equalized time expires and the battery voltage does not reach the equalization voltage point, the charge controller will extend the equalized time until the voltage is achieved. If the voltage is still lower than the equalization voltage when the battery equalized timeout setting is over, the charge controller will stop equalization and return to the float stage.
5.6. Setting for Lithium Battery
If using a lithium battery, ensure it is a configured type. There are two connectors on the lithium battery: RS485 port of BMS and power cable.
Lithium Battery Connection:
- Assemble battery terminals based on recommended battery cable and terminal size (similar to lead-acid batteries).
- Connect the RS485 port of the battery to the BMS (RS485) communication port of the inverter.
Lithium Battery Communication and Setting:
Connect the BMS communication cable between the battery and the inverter. This cable transmits information and signals, including:
- Re-configuring charging voltage, charging current, and battery discharge cut-off voltage according to lithium battery parameters.
- Inverter starting or stopping charging based on battery status.
Ensure the lithium battery RS485 port connects pin-to-pin to the inverter. The communication cable is included in the package.
Setting for PYLON US2000 Lithium Battery:
PYLONTECH US2000 lithium battery settings:
- Dip Switch: 4 dip switches set baud rate and battery group address.
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