Manuals+

Felicitysolar IVEM Series 6KVA Solar Inverter User Guide

About This Manual

Purpose: This manual describes the assembly, installation, operation, warning code, and fault code of this unit. Please read this manual carefully before installations and operations. Keep this manual for future reference.

Scope: 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.

WARNING MARKS

Warning marks inform users of conditions which can cause serious physical injury or death, or damage to the device. They also tell users how to prevent the dangers. The warning marks used in this operation manual are shown below:

Mark Name Instruction Abbreviation
⚠️ Danger Serious physical injury or even death may occur if not follow relevant requirements. Danger
⚠️ Warning Physical injury or damage to the device may occur if not follow relevant requirements. Warning
? Forbid Damage may occur if relevant requirements are not followed. Forbid
⚡ Electrostatic sensitive Damage may occur if relevant requirements are not followed. Electrostatic sensitive
? Hot temperature Do not touch the base of the inverter as it will become hot. Hot temperature
ℹ️ Note The procedures taken for ensuring proper operation. Note

Introduction

This is a multi-function inverter/charger, combining functions of inverter, MPPT solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.

Features

Basic System Architecture

The following illustration shows basic application for this inverter/charger. It also includes following devices to have a complete running system:

Consult with your system integrator for other possible system architectures depending on your requirements.

This inverter can power all kinds of appliances in home or office environment, including motor-type appliances such as tube light, fan, refrigerator and air conditioner.

Diagram: A schematic showing the basic system architecture with connections for Power grid, PV Input, AC Input, Output (Load), and Battery pack to the Felicitysolar inverter.

Product Overview

Diagram: An illustration of the Felicitysolar IVEM6048 unit with numbered components and a separate view of the rear panel connections.

Component List:

  1. LCD display
  2. Charging indicator
  3. Utility bypass indicator
  4. Inverter indicator
  5. Fault or warning indicator
  6. ESC button
  7. UP button
  8. DOWN button
  9. ENTER button
  10. Switch
  11. AC input port
  12. AC output port
  13. Parallel connection port
  14. PV input connection port
  15. WIFI input connection port
  16. RS-232 Communication port
  17. BMS Communication port *
  18. Dry contact
  19. Cooling fan
  20. Battery input connection port
  21. Input breaker

* The BMS communication port only supports Felicitysolar batteries

Specifications

Line Mode Specifications

Model IVEM6048
Rated Output Power 6000VA / 6000W
Nominal DC Input Voltage 48V
Input Voltage Waveform Sinusoidal (utility or generator)
Nominal Input Voltage 230Vac
Low Line Voltage Disconnect 170Vac±7V (UPS); 90Vac±7V (Appliances)
Low Loss Voltage Re-connect 180Vac±7V (UPS); 100Vac±7V (Appliances)
High Line Voltage Disconnect 280Vac±7V
High Line Voltage Re-connect 270Vac±7V
Max AC Input Voltage 280Vac
Nominal Input Frequency 50Hz / 60Hz (Auto detection)
Low Line Frequency Disconnect 40±1Hz
Low Line Frequency Re-connect 42±1Hz
High Line Frequency Disconnect 65±1Hz
High Line Frequency Re-connect 63±1Hz
Output Voltage Waveform As same as input waveform
Output Short Circuit Protection Line mode: Circuit Breaker; Battery mode: Electronic Circuits
Efficiency (Line Mode) >95% (Rated R load, battery full charged)
Transfer Time (Single unit) 10ms typical (UPS); 20ms typical (Appliances)
Transfer Time (Parallel) 50ms typical
Output power derating When AC input voltage drops to 170V, the output power will be de-rated to 50%.
Pass Through Without Battery Yes
Max. Bypass Overload Current 40A
Max. Inverter/Rectifier Current 40A/6000W

Utility Charge Mode Specifications

Utility Charge Mode Specifications
Nominal Input Voltage 230Vac
Input Voltage Range 90~280Vac
Nominal Output Voltage Dependent on battery type
Max. Charge Current 120A
Charge Current Regulation 10-120A (Adjustable unit is 1A)
Over Charge Protection Yes

Solar Charging & Grid Charging

Solar Charging & Grid Charging
Max. PV Open Circuit Voltage 500V
PV Voltage Working Range 90V-450V
Max. Input Power 7500W
Max. Solar Charging Current 120A
Max. Charging Current(PV+Grid) 120A
Max. Input Current 27A
Min. Startup Voltage 95V

Charge Algorithm

Algorithm
Algorithm Three stage: Boost CC (Constant current stage) -> Boost CV (Constant voltage stage) -> Float (Constant voltage stage)
Charging Curve Diagram: A graph showing the charging stages (Bulk, Absorption, Float) with corresponding voltage and time parameters for different battery types (AGM, Flooded, Lithium).
Battery Type AGM Flooded Lithium
Battery Type Setting Boost CC/CV: 56.4V, Float: 54V Boost CC/CV: 58.4V, Float: 54V Self-defined: Adjustable, up to 60V

Installation

Safety Guidance

Warning marks inform users of conditions which can cause serious physical injury or death, or damage to the device. They also tell users how to prevent the dangers. The warning marks used in this operation manual are shown below:

Unpacking and Inspection

Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should have received the following items inside of package:

Diagram: Images of the items included in the package: Inverter unit, Manual, Parallel communication cable, Current sharing cable, U-shaped terminal, RJ45 Terminal, Expansion bolt, Wall Hangers and Screws.

Preparation

Before connecting all wirings, please take off bottom cover by removing four screws as shown below.

Diagram: Illustration showing how to remove the bottom cover of the inverter.

Mounting the Unit

Consider the following points before selecting where to install:

Diagram: Shows recommended clearances around the inverter for ventilation and access.

Suitable for mounting on concrete or other non-combustible surface only.

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. It may not be requested to have a disconnect device in some applications, however, it's still requested to have over-current protection installed. Please refer to typical amperage in below table as required fuse or breaker size.

WARNING! All wiring must be performed by a qualified personnel.

WARNING! It's very important for system safety and efficient operation to use appropriate cable for battery connection. To reduce risk of injury, please use the proper recommended cable and terminal size as below.

Model Wire Size Cable (mm²) Torque Value (Max)
6KVA 1*2AWG 35 2.5 Nm

Please follow below steps to implement battery connection:

  1. Assemble battery ring terminal based on recommended battery cable and terminal size.
  2. Connect all battery packs as units requires. It's suggested to connect at least 200Ah capacity battery.
  3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the bolts are tightened with torque of 2 Nm. Make sure polarity at both the battery and the inverter/charge is correctly connected and ring terminals are tightly screwed to the battery terminals.

Diagram: Shows the battery connection terminals on the inverter and the process of connecting battery wires.

AC Input/Output Connection

CAUTION!! Before connecting to AC input power source, please install a separate AC breaker between inverter and AC input power source. This will ensure the inverter can be securely disconnected during maintenance and fully protected from over current of AC input. The recommended spec of AC breaker is 32A for 3KVA and 50A for 5KVA.

CAUTION!! There are two terminal blocks with "IN" and "OUT" markings. Please do NOT mis-connect input and output connectors.

WARNING! All wiring must be performed by qualified personnel.

WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC input connection. To reduce risk of injury, please use the proper recommended cable size as below.

Suggested cable requirement for AC wires
Model Gauge Cable (mm²) Torque Value
6KVA 8 AWG 10 1.4~ 1.6Nm

Please follow below steps to implement AC input/output connection:

  1. Before making AC input/output connection, be sure to open DC protector or disconnector first.
  2. Remove insulation sleeve 10mm for six conductors. And shorten phase L and neutral conductor N 3 mm.
  3. Insert AC input wires according to polarities indicated on terminal block and tighten the terminal screws. Be sure to connect PE protective conductor first.
    →Ground (yellow-green)
    L→LINE (brown or black)
    N-Neutral (blue)
  4. Then, insert AC output wires according to polarities indicated on terminal block and tighten terminal screws. Be sure to connect PE protective conductor first.
    →Ground (yellow-green)
    L→LINE (brown or black)
    N-Neutral (blue)
  5. Make sure the wires are securely connected.

CAUTION: Important. 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 conditioner are required at least 2~3 minutes to restart because it's required to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a short time, it will cause damage to your connected appliances. To prevent this kind of damage, please check manufacturer of air conditioner if it's equipped with time-delay function before installation. Otherwise, this inverter/charger will trig overload fault and cut off output to protect your appliance but sometimes it still causes internal damage to the air conditioner.

Diagram: Shows the AC input and output terminal connections.

PV Connection

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

WARNING! All wiring must be performed by qualified personnel.

WARNING! It' very important for system safety and efficient operation to use appropriate cable for PV module connection. To reduce risk of injury, please use the proper recommended cable size as below.

Model Cable Size Cable (mm²) Torque
6KVA 10~12 AWG 6 1.4~1.6 Nm

WARNING! Because this inverter is non-isolated, it accepts: single crystal line and polycrystalline line with Class a and CIGS modules. To avoid failure, do not connect photovoltaic modules that may leak electricity to the inverter. For example, grounding a photovoltaic module can cause the inverter to leak current. When the CIGS module is used, ensure that there is no grounding connection.

Diagram: Shows the PV input terminal connections.

Dry Contact Signal

There is one dry contact (3A/250VAC) available on the inverter.

Unit Status Condition Dry contact port: NC C NO
Power Off Unit is off and no output is powered. Close Open
Battery voltage<Low DC warning voltage Open Close
Output is powered from Battery (utility first) Program 01 set as USB Battery voltage>Setting value in Program 13 or battery charging reaches floating stage Close Open
Power On Program 01 set as SBU (SBU priority) Battery voltage<Setting value in Program 12 Open Close
Battery voltage>Setting value in Program 13 or battery charging reaches floating stage Close Open

PV Module Selection

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

  1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
  2. Max. power voltage (Vmp) should be during PV array MPPT voltage range.
Solar Charging Mode INVERTER MODEL 6KVA
Max. PV Array Open Circuit Voltage 500V
PV Array MPPT Voltage Range 95Vdc-430Vdc

Please follow below steps to implement PV module connection:

  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. Then, connect positive pole (+) of connection cable to positive pole (+) of PV input connector. Connect negative pole (-) of connection cable to negative pole (-) of PV input connector.

Diagram: Shows the PV positive and negative wire connections.

Final Assembly

After connecting all wirings, please put bottom cover back by screwing two screws as shown below.

Diagram: Shows the final assembly step of reattaching the bottom cover.

WIFI Connection

Diagram: Shows the pin assignment for the WIFI Communication Port.

WiFi Pin1 Pin2 Pin3 Pin4
+VCC RS232_TXD RS232_RXD GND

Inverter and computer connection

Diagram: Illustrates the connection between the inverter and a computer via RS232 or USB.

Pin Assignment for RS232 Communication Port

PIN 1 PIN 2 PIN 3 PIN 4 PIN 5 PIN 6 PIN 7 PIN 8
RS232 RS232TX RS232RX +12V GND NC NC NC GND

*WiFi and RS232 cannot be connected at the same time

*Users need to purchase their own RS232 conversion USB interface cable to connect the computer

*If you need to update the firmware library, please contact after-sales personnel

Wiring System for Inverter

Diagram: A comprehensive wiring diagram illustrating the connections for PV panels, Utility, Battery pack, and Load to the inverter, including parallel connections.

NOTE 1: The power grid N line and off grid N line cannot be shared and connected independently.

Operation

Power ON/OFF

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

Operation and Display Panel

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

Function Key Icon Description
ESC ← To previous page
UP ▲ To go to previous selection
DOWN ▼ To go to next selection
ENTER ↵ To confirm the selection or go to next page

LED Indicator

LED Icon Color State Description
Battery ? Green solid The battery is full.
Green Flashing The battery is charging.
dim The battery is not charged.
Utility ⚡ Green solid Inverter is running in utility mode.
dim Inverter is not running in utility mode.
Inverter ☀️ Green solid Inverter is running in off-grid mode.
dim Inverter is not running in off-grid mode.
Fault ❗ Red solid Inverter works in fault event.
Red Flashing Inverter works in warning event.
dim Inverter works normally.

Buzzer Information

LCD Display Icons

Icon Function description
Input Source Information
INPUT BAT PV
KW VA % Hz
8.8.8 88 8.8.8		 Indicate input voltage, input frequency, PV voltage, PV power, battery voltage and charger current.
Configuration Program and Fault Information
88
ERROR		 Indicates the setting programs.
88
ERROR		 Indicates the warning and fault codes.
Warning: flashing with warning code.
Fault: lighting with fault code

Output Information

OUTPUT BAT LOAD
KW VA % Hz
8.8.8 88 8.8.8

Indicate output voltage, output frequency, load percent, load in VA, load in Watt and discharging current.

Battery Information

?

Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100%.

Li

Indicates Lithium battery type.

Mode Operation Information

Mode Information
BYPASS Indicates communication is built between inverter and battery.
⚡ Indicates the utility.
Indicates load is supplied by utility directly.
☀️ Indicates the inverter/charger is working.
☀️ Indicates the PV panels.
☀️ Indicates PV MPPT is working.
? Indicates the WIFI link
⚡ Indicates the AC output

Mute Operation

?

Indicates unit alarm is disabled.

Model Information

IVEM6048 6KW

Indicates product model

LCD operation flow chart

Diagram: A flowchart illustrating the navigation through the LCD menus using the function keys (ESC, UP, DOWN, ENTER).

Base information Page

The base information will be switched by pressing "UP" or "DOWN" key. The selectable information is switched as below order:

Diagram: Shows different screens of the Base Information Page, displaying PV voltage/output voltage, PV power/output voltage, Battery voltage/output voltage, Charging current/output voltage, Battery voltage/output frequency, Battery voltage/Load percentage, Battery voltage/Load VA, Battery voltage/Load wattage, Input voltage/Output voltage, and Input frequency/Output voltage.

On base information page, pressing and holding "ENTER" key for 3 sec, the unit will enter parameters page. Press "UP" or "DOWN" key to switch the selection and press "ENTER" key to enter selected page. Press "ESC" key to back to previous page.

Setting Page

Press "UP" or "DOWN" button to select setting programs. And then, press "ENTER" button to confirm the selection or ESC button to exit.

Setting items:

Selectable option
00 Exit setting 00 ESC
01 Output voltage setting 220V OPU 01 220
230V OPU 01 230
240V OPU 01 240		 Output voltage configuration
02 Output frequency setting 50Hz OPF 02 50
60Hz OPF 02 60		 Output frequency configuration
03 Utility input range setting Appliance mode AC 03 APL
UPS mode AC 03 UPS		 APL should be selected, when the utility is not well.
04 Output source priority Utility >> PV >> Battery OPS 04 056
PV >> Utility >> Battery OPS 04 506
PV >> Battery >> Utility OPS 04 560		 Utility provides power to the loads first. PV and battery will provide power to loads only when utility is not available.
PV provides power to the loads first. If PV is not sufficient, utility will supply power the loads at the same time. Battery will provide power to loads only when utility is not available.
PV provides power to the loads first. If PV is not sufficient, battery will supply power to the loads at the same time. Utility provides power to the loads only when battery voltage drops to the setting point in program 12.
05 Charger priority PV first (Default) CHS 05 50
PV and Utility CHS 05 SAU
PV Only CHS 05 050		 If inverter is working in utility mode, charger priority can be set as below. However, when inverter is working in Battery mode, only PV can charge battery.
PV will charge battery first. Utility will charge battery only when PV is unavailable.
PV and utility will charge battery together.
Only PV can charge the battery.
06 Max utility charging current setting Default: 60A
600 06 60		 Setting range is from 10A to 120A. Increment of each click is 1A.
07 Max charging current setting Default: 30A
CHC 07 30		 Setting range is from 10A to 100A. Increment of each click is 1A.
08 Battery type setting The battery type is AGM
6At 08 AGn
The battery type is Flooded
6AE 08 FLd
The battery type is self-defined
6AE 08 USE
The battery type is Lib
6AE 08 116		 If "Self-defined" is selected, battery charge voltage and low DC cut-off voltage can be set up in program 9, 10 and 11.
If "Lib" is selected, inverter can charge Lithium battery when the Lithium battery need to be activated. Please make sure Lithium battery is connected before you start up inverter.
If inverter doesn't connect battery or Lithium battery, do not select "Lib" battery type.
09 Bulk charging voltage setting (C.V voltage) Default: 56.4V
09 56.4		 If "self-defined" is selected in program 8, this program is enabled. Setting range is from 48.0V to 60.0V. Increment of each click is 0.1V
10 Floating charging voltage Default: 54.0V
FLU 10 54.0		 If "self-defined" is selected in program 8, this program is enabled. Setting range is from 48.0V to 60.0V. Increment of each click is 0.1V
11 Low DC cut-off voltage or Low SOC Default: 42.0V
60° 10 42.0
Default: 10%
600 12 10.		 "Self-defined" is selected in program 8, the range is set from 42.0V to 54.0V, with an increment of 0.1V per click.
If "LIb" is selected in program 8, the range is set from 0% to 90%, with an increment of 5% per click.
12 Setting battery voltage point back to utility when selecting "SBU priority" in program 4 Default: 46.0V
609 12 46.0		 "Self-defined" is selected in program 8, the range is set from 44.0V to 54.0V, with an increment of 0.1V per click.
If "LIb" is selected in program 8, the range is set from 5% to 95%, with an increment of 5% per click.
13 Fully charged battery mode when selecting "SBU priority" in program 4 Default: 54.0V
66 13 54.0
Fully charged 600 13 10		 "Flooded" or "Self-defined" is selected in program 8, the range is set from 48.0V to 60.0V, with an increment of 0.1V per click.
Battery should be charged to float charging stage.
If "LIb" is selected in program 8, the range is set from 10% to 100%, with an increment of 5% per click.
14 Overload bypass function Disable (Default)
L6P 14. 81 5
Enable
L6P 14 ENA		 If it is enabled, the inverter will switch to utility mode if overload happens in battery mode.
15 Overload restart function Disable (Default)
OLF 15 di 5
Enable
OLF 15 ENA		 If it is enabled, the inverter will auto restart when overload occurs.
16 Over temperature restart function Disable (Default)
Ott 16 di 5
Enable
OEF 16 ENA		 If it is enabled, the inverter will auto restart when over temperature occurs.
17 Backlight of LCD Disable
6L 17 di 5
Enable (Default)
6L 17 ENA		 If selected, LCD backlight will be off after no button is pressed for 60s.
18 Auto return to the first page of display screen Disable
6FP 18 di 5
Enable (Default)
6FP 18 ENA		 If selected, the display screen will stay at latest screen user finally switches.
If selected, it will automatically return to the first page of display screen (Input voltage/ output voltage) after no button is pressed for 60s.
19 Buzzer Alarm Disable
GEP 19 dis
Enable (Default)
BEP 19 ЕПА		 If selected, buzzer is not allowed to beep.
20 Reset Default Disable(default)
FSE 29 d15
Enable
FSE 29 ENA		 If selected, default initial Settings page.
If selected, Enable restores all Settings other than the parallel Output mode setting item (28) and time to Default their initial values. The inverter also erases all energy storage-related historical data.
21 Energy stored data for PV and Load Disable (Default)
Esd 21 dis
Enable
ESD 2T ENA		 If selected, inverter will erase all historical data of PV and Load energy, and stop record historical data for PV and Load energy.
If selected, inverter will record historical data for PV and Load energy. NOTE: Before selected, please double check if date and time is correct, if incorrect, please set date and time in program 22~27.
22 Time setting- Year YEA 22 22 Setting rage is from 22 to 99.
23 Time setting-Month 100 23 Setting rage is from 1 to 12
24 Time setting-Day DAY 24 Setting rage is from 1 to 31
25 Time setting- Hour HOU 25 9 Setting rage is from 0 to 23
26 Time setting-Minute n10 26 58 Setting rage is from 0 to 59
27 Time setting- Second SEC 2T 30 Setting rage is from 0 to 59
28 Record Fault Code Enable (Default)
FEN BO ENA
Disable
FEN 30 dis		 If selected, recent fault records will be recorded, up to a maximum of 10 records.
If selected, the machine will not record historical fault records.
29 AC output mode If "Flooded" or "User-Defined" is selected in program 08, this program can be set up.
30 Battery equalization Disable(default)
E9 B1 d15
Enable
69 31 ENA		 If selected, the battery equalization function will be turned on.
If selected, the battery equalization function will be turned off.
31 Battery equalization voltage 58.4V(default)
EQU 32 58.4		 Setting range is from 48.0V to 61.0V. Increment of each dick is 0.1V
32 Battery equalized time 60min(default)
698 33 60		 Setting range is from 5 min to 900 min. Increment of each dick is 5 min.
33 Battery equalized timeout 120min(default)
690 34 120		 Setting range is from 5 min to 900 min. Increment of each dick is 5 min.
34 Equalization interval 30days(default)
691 35 30		 Setting range is from 0 to 90 days. Increment of each click is 1 day
35 Equalization activated immediately Disable(default)
ERI 36 dis
Enable
ERI 36 ENA		 If "Disable" is selected, it will cancel equalization function until next activated equalization time arrives based on program 35," Eq"wil not be shown in LCD main page.
If equalization function is enabled in program 30, this program canbe set up. If "Enable" is selected in this program, it's to activate battery equalization immediately and LCD main page will shows"Eq".

Energy stored data Page

The energy stored data will be switched by pressing "UP" or "DOWN" key. The selectable information is switched as below order:

Diagram: Shows the Energy Stored Data screens for PV generated energy today, this month, this year, and in total, as well as Load consumed energy today, this month, and in total.

BMS information Page

The BMS information will be switched by pressing "UP" or "DOWN" key. The selectable information is switched as below order:

Diagram: Shows BMS information screens including Mean SOC/Battery pack number/BMS status, BMS version/SOC, BMS voltage/current, BMS highest temperature/lowest temperature, and BMS fault code/flag.

Rated information Page

The rated information will be switched by pressing "UP" or "DOWN" key. The selectable information is switched as below order:

Diagram: Shows the Rated VA/WATT and Rated battery voltage/Max. charge current screens, as well as the Firmware version.

Lithium Battery Communication

It's allowed to connect lithium battery and build communication only which it has been configured. Please follow bellow steps to configure communication between lithium battery and inverter.

  1. Connect power cables between lithium battery and inverter. Please pay attention to the terminals of positive and negative. Make sure the positive terminal of battery is connected to the positive terminal of inverter, and the negative terminal of battery is connected to the negative terminal of inverter.
  2. The communication cable is bundled with lithium battery. Both sides are RJ45 port. One port is connected to the BMS port of inverter and another one is connected to the COMM port of lithium battery.

Diagram: Shows the physical connections for lithium battery communication.

Diagram: Shows the pin assignment for the BMS Communication Port.

3. Configure battery type to "Lib" in LCD setting No. 08.

The battery type is Lib
6AE 08 116

And then LCD will show you "Li" icon.

4. Power up lithium battery and inverter. Wait a moment, if the communication is built between them, LCD will show you "C" icon as below.

Diagram: Shows the LCD display indicating successful lithium battery communication.

5. Roll LCD real time information pages by pressing "UP" or "DOWN" button, as below page, you can see the parameters of SOC and battery pack units in the communication system.

Diagram: Shows the LCD display indicating SOC and battery pack units.

This page means SOC is 88% and battery pack units are 6.

Battery Equalization

Battery equalization function is built into the charge controller. It mitigates the formation of negative chemical impacts like stratification, a condition where the acid concentration is greater at the bottom of the battery than at the top.

Equalization neutralizes the formation of sulfate crystals that might have accumulated on the plates. If left unchecked, this condition is called sulfation and can reduce the total capacity of the battery, Therefore, it is recommended to balance the battery regularly.

How to Apply Equalization Function

You must enable battery equalization function in the monitoring LCD setup program 31 at the beginning. Then, you can apply this function to the device in one of the following ways:

  1. Setting equalization interval in program 35.
  2. Active equalization immediately in program 36.

When to Equalize

During the floating charge stage, when the set equalization interval (battery equalization cycle) is reached, or when equalization is initiated immediately, the controller will begin to enter Equalize Mode.

However, in Equalize Mode, when battery equalized time has passed and the battery voltage has not risen to the battery equalization voltage point, the charge controller will extend the battery equalization time until the battery voltage reaches the battery equalization voltage. When battery equalized timeout setting is complete, if the battery voltage is still lower than the battery equalization voltage, the charge controller will stop the balancing and return to the float stage.

Equalize charging time and timeout

In Equalize Mode, the controller will charge the battery with as much power as possible until the battery voltage rises to the battery equalization voltage. Then, constant-voltage regulation is performed to keep the battery voltage at the battery equalization voltage. The battery will remain in the Equalize stage until the set battery equalization time is reached.

Diagram: Illustrates the equalization charging process and voltage levels.

Parallel Installation Guide (Only Valid for 6KVA Model)

1. Introduction

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

  1. Parallel operation in single phase with up to 12 units. The supported maximum output power is 72KW/72KVA.
  2. Maximum twelve units work together to support three-phase equipment. Ten units support one phase maximum. The supported maximum output power is 72KW/72KVA and one phase can be up to 60KW/60KVA.

NOTE 1: If this unit is bundled with share current cable and parallel cable, this inverter is default supported parallel operation. You may skip section 2.

NOTE 2: Under parallel operation modes, battery must be connected with inverters.

NOTE 3: Before starting up inverters, please connect all N wires of AC output together.

2. Mounting the Unit

Diagram: Shows the physical arrangement for parallel mounting of multiple inverters, with recommended clearances.

NOTE 1: For proper air circulation to dissipate heat, allow a clearance of approx. 20 cm to the side and approx. 50 cm above and below the unit. Be sure to install each unit in the same level.

NOTE 2: Don't connect PV panels with the ground.

NOTE 3: Make sure battery wires are in correct connection. Don't connect in reverse.

NOTE 4: PV is independent and cannot be connected to multiple machines in one PV.

Single Phase Parallel connection diagram for three inverters in parallel

Diagram: A wiring diagram illustrating the single-phase parallel connection of three inverters, including PV panels, Utility, Battery pack, Load, parallel connection cables, and current-sharing lines.

NOTE 1: Before starting up inverters, please connect all N wires of AC output together

NOTE 2: Do not connect the AC input Neutral (N) wire to the AC output Neutral (N) wire

NOTE 3: Before starting up inverters, please connect all negative (-) wires of battery together.

Three Phase Parallel connection diagram for three inverters in parallel

Diagram: A wiring diagram illustrating the three-phase parallel connection of three inverters, including PV panels, Utility, Battery pack, Load, parallel connection cables, and current-sharing lines.

NOTE 1: Before starting up inverters, please connect all N wires of AC output together

NOTE 2: Do not connect the AC input Neutral (N) wire to the AC output Neutral (N) wire

NOTE 3: Before starting up inverters, please connect all negative (-) wires of battery together.

Three Phase Parallel connection diagram for six inverters in parallel

Diagram: A wiring diagram illustrating the three-phase parallel connection of six inverters, including PV panels, Utility, Battery pack, Load, parallel connection cables, and current-sharing lines.

NOTE 1: Before starting up inverters, please connect all N wires of AC output together

NOTE 2: Do not connect the AC input Neutral (N) wire to the AC output Neutral (N) wire

NOTE 3: Before starting up inverters, please connect all negative (-) wires of battery together.

3. LCD Setting and Display

Setting Program

Single Parallel
28 AC output mode 28 S10 28 PAL When the units are used in parallel with single phase, please select "PAL" in program 28.
28 3P1 It is required to have at least 3 inverters or maximum twelve inverters to support three-phase equipment.
28 3P2 It's required to have at least one inverter in each phase or it's up to ten inverters in one phase. Please select "3P1" in program 28 for the inverters connected to L1 phase, "3P2" in program 28 for the inverters connected to L2 phase and "3P3" in program 28 for the inverters connected to L3 phase.
28 3P3 Do NOT connect share current cable between units on different phases.
Before starting up inverters, please connect all N wires of AC output together.

4. Commissioning

Parallel in single phase

Step 1: Check the following requirements before commissioning:
• Correct wire connection.
• Ensure all breakers in Line wires of load side are open and each Neutral wires of each unit are connected together.

Step 2: Turn on each unit and set "PAL" in LCD setting program 28 of each unit. And then shut down all units.
NOTE: To be safe, it's better to turn off switch when setting LCD program.

Step 3: Turn on each unit.

Diagram: Shows the LCD display in the Master unit and Slave unit during commissioning.

NOTE: Master and slave units are randomly defined.

Step 4: Switch on all AC breakers of Line wires in AC input. It's better to have all inverters connect to utility at the same time. However, these inverters will automatically restart. If detecting AC connection, they will work normally.

Diagram: Shows LCD displays for L1-phase unit, L2-phase unit, and L3-phase unit.

Step 5: If there is no more fault alarm, the parallel system is completely installed.
Step 6: Please switch on all breakers of Line wires in load side. This system will start to provide power to the load.

Support three-phase equipment

Step 1: Check the following requirements before commissioning:
• Correct wire connection
• Ensure all breakers in Line wires of load side are open and each Neutral wires of each unit are connected together.

Step 2: Turn on all units and configure LCD program 28 as P1, P2 and P3 sequentially. And then shut down all units.
NOTE: To be safe, it's better to turn off switch when setting LCD program.

Step 3: Turn on all units sequentially.

Diagram: Shows LCD displays for L1-phase unit, L2-phase unit, and L3-phase unit.

Step 4: Switch on all AC breakers of Line wires in AC input. If AC connection is detected and three phases are matched with unit setting, they wil will work normally. Otherwise, the AC icon will flash and they will not work in line mode.

Step 5: If there is no more fault alarm, the system to support 3-phase equipment is completely installed.
Step 6: Please switch on all breakers of Line wires in load side. This system will start to provide power to the load.

Note 1: To avoid overload occurring, before turning on breakers in load side, it's better to have whole system in operation first.

Note 2: Transfer time for this operation exists. Power interruption may happen to critical devices, which cannot bear transfer time.

Warning Code Table

When fault event happens, the fault LED is flashing. At the same time, warning code, icon ❗ and ERROR are shown on the LCD screen.

Warning Code Warning Information Audible Alarm Trouble Shooting
01 Fan is locked. Beep three times every second Check if the Fans wiring connected well. Replace the fan.
02 Overload Beep twice every second Reduce the loads.
03 Low battery Beep once every second The battery voltage is too low, it should be charging.
50 BMS firmware version is not matched. Upgrade the firmware of BMS.
51 BMS doesn't allow inverter to charge battery. Inverter will stop charging battery automatically.
52 BMS doesn't allow inverter to discharge battery. Inverter will charge battery automatically.
53 BMS require inverter to charge battery. If the code is keeping for long time, please contact with your installer.
54~65 BMS communication fault Check if the communication line is connected well.

Fault Code Table

When fault event happens, inverter will cut off output, and the fault LED is solid on. At the same time, fault code, icon ❗ and ERROR are shown on the LCD screen.

Fault Code Fault information Trouble Shooting
01 Bus voltage is too high AC Surge or internal components failed. Restart the unit, if the error happens again, please return to repair center.
02 Bus voltage is too low Restart the unit, if the error happens again, please return to repair center.
03 Bus soft start fail Internal components failed. Restart the unit, if the error happens again, please return to repair center.
04 Inverter soft start fail Internal components failed. Restart the unit, if the error happens again, please return to repair center.
05 Over current or surge detected by Software Internal components failed. Restart the unit, if the error happens again, please return to repair center.
06 Over current or surge detected by hardware Internal components failed. Restart the unit, if the error happens again, please return to repair center.
Trouble Shooting
07 Output voltage is too low Reduce the connected load. Restart the unit, if the error happens again, please return to repair center.
08 Output voltage is too high Restart the unit, if the error happens again, please return to repair center.
09 Output short circuited Check if wiring is connected well and remove abnormal load.
10 Overload time out Reduce the connected load by switching off some equipment.
11 Battery voltage is too high Check if spec and quantity of batteries are meet requirements.
12 Over current happen at DCDC circuit Restart the unit, if the error happens again, please return to repair center.
13 PV voltage is too high Reduce the number of PV modules in series.
14 Short circuited happen at PV port Check if wiring is connected well.
15 PV power is abnormal Reduce the number of PV modules.
16 Over current happen at PV port Restart the unit, if the error happens again, please return to repair center. Check if wiring is connected well.
17 Fan is locked Replace the fan.
18 Over temperature happen at PV circuit The temperature of internal PV converter component is over the limitation. Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
19 Over temperature happen at battery circuit The temperature of internal battery converter component is over the limitation. Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
20 Over temperature happen at inverter circuit The temperature of internal inverter component is over the limitation. Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
21 The inner temperature over The inner temperature is over the limitation. Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
22 DCDC current sensor failed Restart the unit, if the error happens again, please return to repair center.
23 No.2 DCDC current sensor failed Restart the unit, if the error happens again, please return to repair center.
24 Inverter current sensor failed Restart the unit, if the error happens again, please return to repair center.
25 OP current sensor failed Restart the unit, if the error happens again, please return to repair center.
26 Sharing current sensor failed Restart the unit, if the error happens again, please return to repair center.
27 The AC input and output wires are inversely connected 1. Please check AC input and output wires are connected correctly. 2. If this error happens during parallel installation, please check wires connection. If they are connected correctly, please funish parallel installation first, and then restart inverters. 3. If the problem remains, please contact your installer.
28 Single unit is installed to parallel system 1. Please check if single unit is installed to parallel system. 2. If this error happens during parallel installation, please check wires connectiotn. If they are connected correctly, please funish parallel installation first, and then restart inverters. 3. If the problem remains, please contact your installer.
29 DCDC soft start fail. Restart the unit, if the error happens again, please return to repair center.
30 Over temperature happen at convert H circuit The temperature of internal convert H component is over the limitation. Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
31 Over temperature happen at LLC TX The temperature of internal DC/DC TX is over the limitation. Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
32 Over current happen at LLC circuit Restart the unit, if the error happens again, please return to repair center.
33 Overvoltage occurs in BUS AC surge or PV surge or internal components failed. Restart the unit, if the error happens again, please return to repair center.
35 Overvoltage occurs in BUS AC surge or PV surge or internal components failed. Restart the unit, if the error happens again, please return to repair center.
40 CAN data loss 1. Check if communication cables are connected well and restart the inverter. 2. If the problem remains, please contact your installer.
41 Host data loss
42 Synchronization data loss
43 Current feedback into the inverter is detected.
44 The firmware version of each inverter is not the same. 1. Restart the inverter. 2. Check if L/N cables are not connected reversely in all inverters. 3. For parallel system in single phase, make sure the sharing cables are connected in all inverters. For supporting three-phase system, make sure the sharing cables are connected in the inverters in the same phase, and disconnected in the inverters in different phases. 4. If the problem remains, please contact your installer. 1. Update all inverter firmware to the same version. 2. Check the version of each inverter via LCD setting and make sure the CPU versions are same. If not, please contact your installer to provide the firmware to update. 3. After updating, if the problem still remains, please contact your installer.

The Wi-Fi operation Guide in APP

Introduction

Wireless communication between the off-grid inverter and the APP can be realized through the Wi-Fi module. The APP supports Android and iOS devices.

Diagram: Shows the LCD display with the Wi-Fi status indicator.

The status of the Wi-Fi sign on the LCD display.
After the APP is successfully connected, Wi-Fi indicator light remains constantly on.

Download and install APP

Operating system requirement for your smart phone:
APP Download

Please scan the following QR code with your smartphone to download the App.

Diagram: QR code for downloading the App.

The QR code supports Android system and iOS system

Operation Manual

Please scan the following QR code with your smartphone to view the App Operation Manual

Diagram: QR code for the App Operation Manual.

The QR code supports Android system and iOS system

Models: IVEM Series Solar Inverter, IVEM Series, Solar Inverter, Inverter

File Info : application/pdf, 23 Pages, 12.79MB

PDF preview unavailable. Download the PDF instead.

IVEM6048Manual2025-2-20

References

CorelDRAW 2020 iLovePDF

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