ANENJI Hybrid Solar Inverter User Manual

About This Manual

This manual describes the assembly, installation, operation, and troubleshooting of the ANENJI Hybrid Solar Inverter. Please read this manual carefully before installation and operation. Keep this manual for future reference.

This manual provides safety and installation guidelines as well as information on tools and wiring.

Safety Instructions

WARNING: This chapter contains important safety and operating instructions. Read and keep this manual for future reference.

1. Before using the unit, read all instructions and cautionary markings on the unit, the batteries, and all appropriate sections of this manual.
2. 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.
3. 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.
4. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
5. CAUTION – Only qualified personnel can install this device with battery.
6. NEVER charge a frozen battery.
7. For optimum operation of this inverter/charger, please follow required spec to select appropriate cable size. It's very important to correctly operate this inverter/charger.
8. 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.
9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please refer to INSTALLATION section of this manual for the details.
10. Fuse is provided as over-current protection for the battery supply.
11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded wiring system. Be sure to comply with local requirements and regulation to install this inverter.
12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input short circuits.
13. Warning!! Only qualified service persons are able to service this device. If errors still persist after following troubleshooting table, please send this inverter/charger back to local dealer or service center for maintenance.

Product Overview

The ANENJI Hybrid Solar Inverter is a multi-function inverter/charger, combining functions of inverter, MPPT solar charger, and battery charger to offer uninterruptible power support with a portable size. Its comprehensive LCD display offers user-configurable and easy-accessible button operation.

Key Features:

• Pure sine wave inverter
• Inverter running without battery (for some models)
• 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
• Detachable dust cover for harsh environments
• WiFi remote monitoring (optional/integrated depending on model)
• EQ function to optimize battery performance and extend lifecycle
• Compatible with LiFePO4 battery via RS485
• Lithium battery activation function, which can be triggered by mains or PV

Basic System Architecture:

The following illustration shows a basic application for this inverter/charger, including connections to solar power, generator or utility, battery, and home appliances.

This inverter can power all kinds of appliances in home or office environments, including motor-type appliances such as tube lights, fans, refrigerators, and air conditioners.

Product Layout:

Installation

Unpacking and Inspection:

Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should have received the unit and a user manual.

Preparation:

Before connecting all wirings, take off the bottom cover by removing two screws.

Mounting the Unit:

• 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 at all times.
• The ambient temperature should be between 0°C and 55°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 clear as shown in the diagram to guarantee sufficient heat dissipation and enough space for removing wires.

SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.

Install the unit by screwing three screws. It's recommended to use M4 or M5 screws.

Wiring Connection:

WARNING! All wiring must be performed by qualified personnel.

Battery Connection:

CAUTION: For safety operation and regulation compliance, it's requested to install a separate DC over-current protector or disconnect device between battery and inverter.

WARNING! It's very important for system safety and efficient operation to use appropriate cable for battery connection. To reduce risk of injury, use the proper recommended cable, stripping length, and tinning length.

Steps for battery connection:

1. Make positive and negative cables based on recommended terminal size.
2. Connect all battery packs as units require. It's suggested to use recommended battery capacity.
3. Insert battery cable flatly into battery connector of inverter and make sure the bolts are tightened with a torque of 2-3Nm. Ensure polarity is correct.

AC Input/Output Connection:

CAUTION! Before connecting to AC input power source, install a separate AC breaker between the inverter and AC power source (recommended 50A). Do not mis-connect input and output connectors.

Steps for AC input/output connection:

1. Before making AC input/output connection, open DC protector or disconnector first.
2. Remove insulation sleeve 10mm for six conductors. Shorten phase L and neutral conductor N 3mm.
3. Insert AC input wires according to polarities indicated on the terminal block and tighten the terminal screws. Connect PE protective conductor first.
4. Insert AC output wires according to polarities indicated on the terminal block and tighten terminal screws. Connect PE protective conductor first.
5. Make sure the wires are securely connected.

CAUTION: Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it may cause utility short-circuited when these inverters are worked in parallel operation.

CAUTION: Appliances such as air conditioners require at least 2-3 minutes to restart. If a power shortage occurs and recovers quickly, it can damage connected appliances. Check the manufacturer's specifications for time-delay functions.

PV Connection:

CAUTION: Before connecting to PV modules, install a separate DC circuit breaker between the inverter and PV modules.

When selecting proper PV modules, consider the following 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.

PV Module Wire Connection steps:

1. Remove insulation sleeve 10 mm for positive and negative conductors.
2. 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.
3. Make sure the wires are securely connected.

Wiring Cover Disassembly:

Use a Phillips screwdriver to remove two screws and then remove the baffle.

Final Assembly:

After connecting all wirings, put the bottom cover back by screwing two screws.

Operation

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.

Operation and Display Panel:

The operation and display panel, located on the front panel of the inverter, includes three indicators, four function keys, and an LCD display, indicating the operating status and input/output power information.

LED Indicator Messages:

Function Keys:

LCD Display Icons:

The LCD display information can be switched by pressing the "UP" or "DOWN" key. Information includes input voltage, input frequency, PV voltage, MPPT charging current, charging power, battery voltage, output voltage, output frequency, load percentage, load in VA, load in Watt, DC discharging current, and CPU versions.

LCD Setting Programs:

After pressing and holding the ENTER button for 3 seconds, the unit will enter setting mode. Use "UP" or "DOWN" to select programs and "ENTER" to confirm or "ESC" to exit.

Operating Mode Description:

The inverter operates in various modes depending on power availability and configuration.

Battery Equalization

Equalization function reverses the buildup of negative chemical effects like stratification and removes sulfate crystals, which can reduce battery capacity. It's recommended to equalize battery periodically.

How to Apply Equalization Function:

Enable battery equalization in monitoring LCD setting program 33. Then, apply by either:

1. Setting equalization interval in program 37.
2. Active equalization immediately in program 39.

When to Equalize:

In float stage, when the setting equalization interval is reached or equalization is active immediately, the controller enters Equalize stage.

Equalize Charging Time and Timeout:

In Equalize stage, the controller charges the battery until it reaches the equalization voltage, then maintains it. The battery remains in Equalize stage until the set time is reached. If the battery voltage is still lower than the equalization voltage when the timeout is over, the charge controller will stop equalization and return to float stage.

Setting for Lithium Battery

Lithium Battery Connection:

If using a lithium battery, ensure it's a compatible model. There are two connectors: RS485 port of BMS and power cable.

1. Assemble battery terminal based on recommended battery cable and terminal size (same as Lead acid).
2. Connect the RS485 port of the battery to the BMS (RS485) communication port of the inverter.

Lithium Battery Communication and Setting:

If using a lithium battery, connect the BMS communication cable between the battery and the inverter. This cable delivers information and signals for:

• Re-configuring charging voltage, charging current, and battery discharge cut-off voltage according to lithium battery parameters.
• Inverter start/stop charging according to battery status.

Ensure the lithium battery RS485 port connects to the inverter is Pin to Pin. The communication cable is included in the package.

For PYLON US2000 lithium battery setting, refer to the dip switch settings for baud rate and battery group address (Dip 1 ON for 9600 baud rate, Dips 2, 3, 4 reserved for battery group address).

LCD Setting for Lithium Battery:

After connecting, configure the following settings:

• Set battery type as "USE" (user-defined) in program 05.
• Set C.V voltage as Max charging voltage of BMS - 0.5V (Program 26).
• Set floating charging voltage as C.V voltage (Program 27).
• Set Low DC cut-off voltage ≥ discharging protection voltage of BMS + 2V (Program 29).
• Set Max charging current less than the Max charging current of BMS (Program 02).
• Set voltage point back to utility source ≥ Low DC cut-off voltage + 1V (Program 12).

Remark:

1. It's better to finish setting without turning on the inverter (just let the LCD show, no output).
2. When you finish setting, please restart the inverter.

Parallel Installation Guide

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

1. Parallel operation in single phase with up to 12 units.
2. Maximum 12 units work together to support three-phase equipment. 10 units support one phase maximum.

Package Contents:

In the parallel kit, you will find the parallel communication cable.

Mounting the Unit:

When installing multiple units, ensure proper clearances for air circulation (approx. 20 cm to the side and 50 cm above and below each unit). Install each unit at the same level.

Wiring Connection:

NOTICE: It's requested to connect to battery for parallel operation.

The cable size for each inverter is the same as for single unit installation. Ensure the length of all battery cables is the same to avoid voltage differences.

CAUTION! Install breakers at the battery and AC input side for maintenance and overcurrent protection.

For parallel systems, the breaker rating should be X times the current of 1 unit, where X is the number of inverters connected in parallel.

Communicating with Battery BMS in Parallel System:

1. Only common battery installation is supported.
2. Use an RJ45 cable to connect any one of the inverters to the Lithium battery.

Set the inverter battery type to "Li 2" in LCD program 5. Other inverters should be set to "AGM". Ensure only one inverter is connected via RJ45 cable and set to Lithium in LCD program 5.

Parallel Operation in Single Phase:

Diagrams for two, three, four, and six inverters in parallel are provided in the full PDF manual. Ensure correct power and communication connections.

Support 3-phase equipment:

Diagrams for one inverter per phase and three inverters per phase are provided in the full PDF manual. Nmax=12 units total. N1max=10 units in one phase.

PV Connection for Parallel Systems:

CAUTION: Each inverter should connect to PV modules separately.

Troubleshooting

This section provides common issues, their possible causes, and recommended solutions.

Specifications

Table 1: Line Mode Specifications

Table 2: Inverter Mode Specifications

Table 3: Charge Mode Specifications

Solar Input Specifications:

Table 4: General Specifications

User Tips

• Ensure your chosen model includes the WiFi module for remote monitoring if desired, as it may be optional.
• When setting up parallel systems, always ensure all inverters share the same battery bank and that battery cables are of identical length and material type to prevent operational issues.
• For lithium battery configurations, carefully follow the specific LCD settings for battery type, charging voltages, and cut-off points to ensure optimal performance and battery longevity.

Frequently Asked Questions

Q: Is a WiFi module included with the inverter?

A: Some models include a WiFi module for remote monitoring, while others offer it as an optional feature. Please check your specific model's specifications or product description for details.

Q: Can the 6.2 kW model work with zero emissions on the grid?

A: ANENJI Hybrid Solar Inverters are designed to support various operating modes, including grid-tie functionality. For specific zero-emission or grid-feedback capabilities, please refer to the detailed operating mode descriptions and local regulations.

Warranty and Support

For warranty claims, technical support, or service, please contact your local dealer or the authorized service center. Ensure you have your product model number and purchase details available.

A user manual in PDF format is available for download: View User Manual (PDF)