itel Hybrid Inverter

IHY-6/8KL1A

User Manual
 CONTENTS
Contents

1. INTRODUCTION ........................................... ....................1

1.1 SAFETY & WARNING .................................................. 1
1.2 PRODUCT OVERVIEW ................................................. 3
2. INSTALLATION INSTRUCTIONS ........................................... 4
2.1 UNACCEPTABLE INSTALLATIONS .................................. 4
2.2 PACKING LIST ............................................................ 4
2.3 INSTALLATION ........................................................... 5
2.3.1 INSTALLATION LOCATION SELECTION .................... 5
2.3.2 INSTALLATION ..................................................... 6
2.4 ELECTRICAL WIRING CONNECTION .............................. 8
2.4.1 PV CONNECTION ................................................. 8
2.4.2 BATTERY CONNECTION ........................................ 9
2.4.3 ON-GRID & BACK-UP & GEN CONNECTION ...........11
2.5 SINGLE PHASE PARALLEL CONNECTION DIAGRAM... 17
3. MANUAL OPERATION ..................................................... 18
3.1 SOLARMAN Smart APP OPERATION ........................... 18
3.2 WIFI CONFIGURATION .............................................. 18
3.3 SINGLE PHASE PARALLEL PARAMETER SETTINGS......... 21
3.4 OPERATION STATES INTRODUCTION .......................... 22
4. TOUCHSCREEN USER MANUAL ........................................ 24
4.1 MAIN PAGE ............................................................. 24
4.2 REAL-TIME INFORMATION PAGE ............................... 27
4.3 PASSWORD ENTER PAGE........................................... 29
4.4 SETTING PAGE ......................................................... 30
4.5 SYSTEM INFORMATION PAGE .................................... 30
4.6 SYSTEM SET PAGE .................................................... 30
4.7 BATTERY SET PAGE ................................................... 32
4.8 GRID SET PAGE ........................................................ 32
4.9 BASIC SET PAGE ....................................................... 33
4.10 ADVANCED SET PAGE ............................................. 35
5. TROUBLESHOOTING ....................................................... 36
5.1 WARNING LIST......................................................... 36
 5.2 FAULT REFERENCE CODES ......................................... 38
5.3 TROUBLESHOOTING ................................................. 43
6. OTHERS ......................................................................... 46
6.1 DISCLAIMER ............................................................ 46
6.2 TECHNICAL PARAMETERS ......................................... 48
 1
Contents
INTRODUCTION

This series of products, also known as hybrid or bidirectional energy storage inverter, is
suitable for solar systems in which PV, batteries, loads and grid systems participate together
to achieve energy management.
The electric energy generated by the PV power generation system is used for
self-consumption, the excess electric energy is used for battery charging, and the remaining
electric energy is exported to the power grid.
When the PV power does not meet its own consumption, the battery will discharge to
support the load operation. If the battery power is insufficient, the system will obtain power
from the grid to support the load operation PV energy storage system architecture.

1.1 SAFETY & WARNING

Please read and follow all the instructions and cautions on the inverter or user manual
during installation, operation or maintenance, as any improper operation might cause
personal or property damage.
• SYMBOLS EXPLANATION

Caution!
Failing to observe a warning indicated in this manual may result
in injury.
Danger of electric shock due to high voltage! Disconnect all

incoming power and turn off the product before working on it.
Danger on hot surfaces!
High-temperature hazard. Do not touch the product under
operation to avoid being burnt.

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 This side up!
The package must always be transported, handled and stored
in such away that the arrows always point upwards.
Product should not be disposed as household waste.
Do not dispose of the inverter as household waste. Discard the
product in compliance with local laws and regulations .or send
it back to the manufacturer.

Grounding mark.

Read through the user manual before any operations.

Keep dry!
The package/product must be protected from excessive
humidity and must be stored under cover.
Inverter will be touchable or operable after minimum 5
minutes of being turned off or totally disconnected, in case of
any electrical shock or injury.

• SAFETY WARNING
Any installation and operation on inverter must be performed by qualified electricians, in
compliance with standards, wiring rules or requirements of local grid authorities or
companies.
Before any wiring connection or electrical operation on inverter, all DC and AC power must
be disconnected from inverter for at least 5 minutes to make sure inverter is totally isolated
to avoid electric shock.
The temperature of inverter surface might exceed 60℃ during working, so please make
sure it is cooled down before touching it, and make sure the inverter is untouchable for
children.
Do not open inverter cover or change any components without authorization, otherwise the
warranty commitment for the inverter will be invalid.
Usage and operation of the inverter must follow instructions in this user manual, otherwise
the protection design might be useless and warranty for the inverter will be invalid.
Appropriate methods must be adopted to protect inverter from static damage. Any damage
caused by static is not warranted by manufacturer.
PV negative (PV-) on inverter side is not grounded as default design.
The total open-circuit voltage of PV string/array is lower than the maximum rated DC input
voltage of the inverter. Any damage caused by PV over-voltage is beyond warranty.

When the inverter is working, it is prohibited to plug PV, battery, and AC connectors.

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1.2 PRODUCT OVERVIEW

Back-Up On-Grid
panel Gen Port

LED
INDICATORS

Wi-Fi Box
DC Switch Battery
(Optional) Terminals

PV Terminals

Meter Communication Cable

• LED INDICATORS

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 2
Contents
INSTALLATION
INSTRUCTIONS
2.1 UNACCEPTABLE INSTALLATIONS
Please do not use the following installation methods that may cause damage to the system

or inverter:

BACK-UP SIDE CANNOT SINGLE PV STRING CANNOT CONNECT TO TWO OR

CONNECT TO GRID. MOREINVERTERS.

ON-GRID OR BACK-UP SIDE CANNOT CANNOT CONNECT TO

CONNECT TO ANY AC GENERATOR. INCOMPATIBLE BATTERIES.
2.2 PACKING LIST
After receiving the inverter, please check to make sure all the components as below are
not missing or broken.

Inverter×1 Wall-mounted CT×1 Data Collector×1

Bracket l×1
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 Positive DC Plug×2 Negative DC Plug×2 Net cable×1 Battery terminal×2

Expansion Bolts×2 Hexagon head screw×2 Cold terminals×9 Hexagon head screw×2

2.3 INSTALLATION
2.3.1 INSTALLATION LOCATION SELECTION
In order to facilitate the protection and maintenance of the inverter, the installation location
of the inverter must be carefully selected according to the following rules:
Rule1. The inverter should be installed on a solid surface that is suitable for the orientation
of the inverter and capable of supporting the weight of the inverter.
Rule 2. The inverter should be installed vertically or at an angle not exceeding 15°.

Rule 3. Ambient temperature should be lower than 60°C.

Rule 4. The installation of inverter should be protected under shelter from direct sunlight or
bad weather like snow, rain, lightning etc.

Rule 5. Inverter should be installed at eye level for convenient maintenance.

Rule 6. Product label on inverter should be clearly visible after installation.
Rule 7. Leave enough space around inverter following the values on pic 3.

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 Inverter cannot be installed near flammable, explosive or strong
electro-magnetic equipment.

2.3.2 INSTALLATION
This inverter can only be installed on a flat surface.
Step1:
Please use the mounting bracket as a template to
drill 2 holes on right positions (10mm in diameter,
and 35mm in depth)
Use the expansion screws in the accessory to secure
the mounting bracket to the wall.
NOTE: Bearing capacity of the wall must be higher
than 20KG, otherwise may not be able to keep
inverter from dropping.

Step2:
Carry the inverter by grabbing the
radiator on both sides and secure the
inverter to the mounting bracket.
NOTE: Make sure the heat sink on
inverter is rightly joint with
mounting bracket.

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Step3:
Finally, the screws are fixed, and an anti-theft
lock can be added as needed.
NOTE: Make sure the screws between the
inverter and the fixing plate are fixed tightly
Prevent shedding.

Step4:
The ground cable should be connected
to the ground location on the side.

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2.4 ELECTRICAL WIRING CONNECTION
2.4.1 PV CONNECTION
Before connecting PV panels/strings to inverter, please make sure requirements are
followed as below :
 The total short-circuit current of PV string must not exceed inverter's max DC current
 The minimum isolation resistance to ground of the PV string must exceed 18.33kΩ in
case of any shock hazard
 PV strings could not connect to earth/grounding conductor
 Use the DC plugs in the accessory box
NOTE: There will be MC4 or Amphenol DC plugs in accessory box, the detailed connection
as below:
Step1：Prepare PV cables and DC plugs. Step2：Connect PV cable to DC connectors.

NOTE: NOTE:
 Please use DC plugs and connectors  PV cable must be tightly crimped into the
in accessory box Connectors.
 PV cable should be standard,  For Amphenol connector, the limit buckle
2.5-4mm2 PV cable cannot be pressed.
Step3：Screw the cap on and plug onto inverter side.

NOTE:
 There will be a click sound
if connectors are inset
correctly into DC plugs

The polarity of PV strings or on the inverter cannot be connected by

reverse, otherwise inverter could be damaged.

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2.4.2 BATTERY CONNECTION
Applicable to lithium batteries (packs) whose capacity should be greater than or equal to
50Ah. Battery cable requirements are as follows:
Grade Description Value

A OD 10-12mm

B Isolation section NA

C Conductor Core 20-25mm2

•Please be careful against any electric shock or chemical hazard
•Battery wiring connection steps as below:
Make sure battery switch is off and battery nominal voltage meet Hybrid
inverter specification before connecting battery to inverter make sure inverter
is totally isolated from PV and AC power.

Step1：Prepare battery cables and accessories Step2：Make battery terminals.

and put battery power cable through battery
cover.

 Strip cable coat, revealing 10mm

NOTE:
length of metal core
1. Please use accessories from box
 Use special crimper to compress
2. Battery power cable should be 20~25mm²
battery terminal tightly
Step3：Connect battery terminals onto inverter.

NOTE:
Please make sure polarity (+/-) of
battery are not reversed

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•FOR LEAD-ACID BATTERIES
Lead-Acid and other similar older-technology battery types require experienced and precise
design, installation and maintenance to work effectively.
For lead-acid battery bank, the inconformity between battery cells might lead to battery cell
over-charge or discharge, and further might damage battery cells and shorten battery bank
life.
For this series inverters there is no temperature compensation, thus customers need do
battery settings based on the real working temperature of battery.
For lead-acid battery settings on App, please honestly refer to battery specifications and the
actually battery work condition like work temperature and battery age. Unsuitable settings
will lead to higher SOC deviation, weaker battery lifespan and further battery damage.
For lead-acid batteries, battery SOC calculation might not be so accurate result from like
battery inconformity between cells, battery aging or other specifications of lead-acid
battery etc.
We will keep the right for explanation on all the settings suggested and all the problems
happened on lead-acid batteries or the whole system. And we are not responsible for any
damage caused by unsuitable settings, battery beyond warranty or battery quality etc.
•BATTERY PROTECTION DESCRIPTION

Battery will act a protective charge/discharge current limitation under any condition as
below:
 Battery SOC is lower than SOC Protection
 Battery voltage lower than discharge Cut-off Voltage
 Battery over temperature protection
 BMS limitation for lithium battery
When charge/discharge current limitation protection happens:
 Under on-grid mode, battery charge/discharge operation could be abnormal
 Under off-grid mode, Back-Up supply will shut down

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2.4.3 ON-GRID & BACK-UP & GEN CONNECTION
An external AC switch (>32A) is needed for On-Grid connection to isolate from grid when
necessary. Below are the requirements on AC switch use:
1.Use a separate AC switch for

individual inverter.

2. On AC side, the individual

switch should be connected
before loads (between
inverter and loads).

•On-Grid wiring connection process is as below：

Make sure inverter is totally isolated from any DC or AC power before
connecting AC Cable.

Step1： Step2：Lock terminal cover and screw

1. Prepare the terminals and AC cables. up the terminal cap
2. Put AC cable through terminal cover Note: Make sure the terminal cover is
and screw the three cables tightly on the rightly locked onto the terminal
connectors.

Step3 ： Connect the assembled AC

terminals onto inverter.
4mm² Copper Conductor Material Note: Make sure
NOTE: it is connected
• Please use the terminals in to 'On-Grid' side
components box;
•Make sure cable jacket is not locked
with conductor
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•Back-Up wiring connection process is as below:
An external AC switch (>32A) is needed for Back-Up connection to be isolated when
necessary.
The absence of AC breaker on Back-Up side will lead to inverter damage if only
electrical short-circuit happened on Back-Up side. And Back-Up function cannot
turn off under on-grid condition.

Step1： Step2：
1. Prepare the terminals and AC Lock terminal cover and screw up the
cables. terminal cap
2. Put AC cable through terminal Note: Make sure the terminal cover is
cover and screw the three cables rightly locked onto the terminal
tightly on the connectors.

Step3：
Connect the assembled AC terminals onto
inverter.
Note: Make sure it
is connected to
4mm² Copper Conductor Material 'back-up' side
NOTE:
• Please use the terminals in
components box;
•Make sure cable jacket is not locked
with conductor
Declaration For Back-Up Loads
The inverter can continuously output twice the rated power within 15 seconds to ensure
the operation of the backup load. If the operating temperature is too high, the inverter itself
will disconnect the output.
For a convenient
maintenance, a switch could
be installed on Back-Up and
On-Grid side. Then it is
adjustable to support load by
Back-Up or by grid or just
leave it there

Declaration For Back-Up Overload Protection

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When the overload protection function takes effect, the inverter will stop. At this time, you
need to reduce the load and then operate the APP to "Overload Reset" or restart after a
complete power outage.
•GEN wiring connection process is as below:
An external AC switch (>32A) is needed for Back-Up connection to be isolated when
necessary.
The absence of AC breaker on GEN side will lead to inverter damage if only
electrical short-circuit happened on Back-Up side.

Step1： Step2：
1. Prepare the terminals and AC Lock terminal cover and screw up the
cables. terminal cap
2. Put AC cable through terminal Note: Make sure the terminal cover is
cover and screw the three cables rightly locked onto the terminal
tightly on the connectors.

Step3：
Connect the assembled AC terminals onto
inverter.
4mm² Copper Conductor Material
NOTE: Note: Make sure it
• Please use the terminals in is connected to
components box; 'GEN' side
•Make sure cable jacket is not locked
with conductor

•GS Indications

GS: dry contact signal for

startup the diesel generator.

When the "GEN signal" is active,

the open contact (GS) will

switch on (no voltage output).

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Note: When the Smart Load Output function is turned on, the GEN port can be used as an

output port to connect to the load. Smart load output or generator input functions cannot

be set simultaneously.

•CT Indications
All work should be performed by trained and qualified operators using
safe and suitable tools.
Since this product is a split type transformer, please pay attention to the cleanliness of the
magnetic core surface during installation. lf there is dirt on the core surface, the accuracy of
the product will be deteriorated.
1. Before the transformer is connected to any equipment, please ensure that the circuit is
powered off to prevent clicks.
2. Open CT, see figure 1.
3. Clip the CT on the cable under test. Make sure that the maximum current in the wiring
does not exceed the maximum input current of the CT; The current flows in the direction of
the arrow on the CT housing.
4. Fasten the CT again, the cable under test should be inside the CT window now (see figure
2)
5. Fix the CT on the cable under test with nylon cable ties to prevent the CT from sliding see
figure 3)
6. Connect the CT output white wire to the positive terminal of the measuring device, and
the CT output black wire to the negative terminal of the measuring device (see figure 4).
7. After checking that the circuit is correct, turn on the power and the CT starts to measure
the current in the circuit.
figure 1 figure 2 figure 3 figure 4

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•WIRING SYSTEM FOR HYBRID INVERTER

•SYSTEM CONNECTION DIAGRAMS

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NOTE
Meter communication cable (RJ45) is attached on the inverter "To Meter" cable, could be
extended to max 100m, and must use standard RJ45 cable and plug as below:

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2.5 SINGLE PHASE PARALLEL CONNECTION DIAGRAM
--

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 3
Contents
MANUAL
OPERATION
3.1 SOLARMAN Smart APP OPERATION
SOLARMAN Smart is an external monitoring/ configuration
application for hybrid inverters, used on smart phones or pad
for both Android and iOS system, main functions as below:
1. Edit system configuration to make the system work as
customer needs
2. Monitor and check performance of the hybrid system
3. W-Fi configuration
Please download SOLARMAN Smart APP
iPhone : Search “SOLARMAN Smart APP "in Apple Store
Android: Search “SOLARMAN Smart APP" in Google Play

3.2 WIFI CONFIGURATION

Please use 2.4G network for configuration. 5G network is not supported.

Before configuring the network, please make sure:

Successfully connected to home Wi-Fi network

Bluetooth function of mobile phone is turned on

Open SOLARMAN Smart APP and create new plant and then add a logger：

1
2

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Step 1: Confirm Wi-Fi Info
Please make sure that your mobile phone is connected to the Wi-Fi network at home,
which is consistent with the network displayed on the page, and enter the connection
password of the network.
After completing the input and confirming that the password is correct, click the "Start to
configure" button.

Step 2: Auto Configuration

Please wait for a while to complete the configuration. System will switch to the Configured
Page automatically.Please keep the Wi-Fi and Bluetooth functions of your phone turned on
during the configuration process.
When you go back to 「Device List」, the logger will still at Offline status. Usually, the data
will be updated in 10 mins. Please wait patiently.

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 If configuration failure occurs, please check the following reasons and try it again.

1. Make sure WLAN is ON;

2. Make sure Bluetooth is ON;

3. Make sure WiFi is normal;

4. Make sure wireless router does not implement the white-black list;

5. Shorten the distance between the phone and device;

6. Try to connect to other Wi-Fi;

7. Remove the special characters（，；‘’=“”`） in Wi-Fi network.

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3.3 SINGLE PHASE PARALLEL PARAMETER SETTINGS

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3.4 OPERATION STATES INTRODUCTION
Hybrid inverter system normally has the following work states based on your configuration
and layout conditions
Battery standby state

In this state, the load supply priority is PV> Grid > Battery.
1. When PV power is available, PV power will provide power to the load first. If it’s
sufficient, PV power will charge the battery, if it’s more sufficient, PV power will feed-in
to the grid.
2. When PV power is not available or not sufficient, the Grid will provide power to
the load.
3. When PV power and the Grid is not available, the battery will provide power to
the load.
NOTE
In this state, only the PV power can charge the battery, and the battery can only
provide power to the load and can’t provide power to feed-in the grid.

Off-grid state
In this state, the load supply priority is
PV > Battery.
In this state, the inverter will provide
230V pure sine waveform to ensure the
load can use pure electricity.
1. When PV power is available, provide
230V pure sine waveform to ensure the
load.
2. When PV power is not available or
not sufficient, the battery will provide
power to the load.

NOTE
In this state, only the PV power can charge the battery. To ensure the load can use pure
electricity, the Grid is not available.
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 Economical state

In this state, you can set a set of battery

charging and discharging time.

(1) During the battery charging period:

1. When PV power is available, PV power will provide power to the load first. If it’s
sufficient, PV power will charge the battery, if it’s more sufficient, PV power will feed-in
to the grid.
2. When PV power is not available or not sufficient, the Grid will provide power to the
load and charge the battery at the meanwhile.
NOTE: In this state, the Grid can charge the battery. So we suggest that the
charging period is setting in the electricity valley time.

(2) During the battery discharging period:

1. When PV power is available, PV power will provide power to the load first. If it’s
sufficient, PV power will feed-in to the grid directly.
2. When PV power is not available or not sufficient, the battery will provide power to
the load.
3. When the battery voltage is under the cut-off voltage,the Grid will provide power
to the load.
NOTE: In this state, if the battery discharge power set value is more the load power , the
excess power will be connected to the grid, and opening the anti-reverse flow can
prevent the battery energy from flowing to the grid.

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 4
Contents
TOUCHSCREEN
4.1 MAIN PAGE USER MANUAL
The LCD is a touch screen, please touch the screen to operate.

This is the main page. Power on the LCD to show the flow chart on the main page. When
powering on, data refreshing exists a little delay, so please wait for a few seconds before
operation until the real time appears directly above on the screen.
The main page displays PV, grid, battery, load power, battery voltage and SOC. At the same
time, the color of the inverter icon indicates the real time operation status. Based on the
real-time power changes, the battery icon changes, and through the signal dots flow
direction to show the dynamic flow of power relationship.
• Description of Touch Functions
Icons Functions

Click to enter the PV page, and view real-time data for the PV section.

Click to enter the Grid page, and view real-time data for the Gird section.

Click to enter the GEN page, and view real-time data for the GEN section.

Click to enter the Battery page, and view real-time data for the Battery section.

This icon means that the Battery SOC ranges from 0 to 10 percent.

This icon means that the Battery SOC ranges from 10 to 20 percent.

This icon means that the Battery SOC ranges from 20 to 30 percent.

This icon means that the Battery SOC ranges from 30 to 50 percent.

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 This icon means that the Battery SOC ranges from 50 to 75 percent.

This icon means that the Battery SOC ranges from 75 to 100 percent.

Click to enter the Load page, and view real-time data for the Load section.

Click to enter the Run page, and overview the basic information of each section.

If the icon is orange, it indicates current normal operation.

If the icon is red, it means current alarm faults.

Click to enter the Error Code page, and view the latest alarm records (up to 99).
The content includes the number of messages, alarm time, and error code.
Click to enter the Setting page, but you need to enter the password correctly at
first.
Home-return button.

Back button.

Page-up button.

When the button turns transparent, it means untouchable.

Page-down button.

When the button turns transparent, it means untouchable.

Save button.

When the button turns transparent, it means untouchable.

It indicates that the password is correct, click to enter the Setting page.

It indicates the password is wrong and you need to re-enter, or it shows ERROR.

It means unselected.

It means selected.

It means off.

It means on.

Click on the icons of each section to view real-time data, as shown in the table above.
Click on the gear icon in the upper right corner of the Main screen to enter the Setting
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interface. In order to protect the information security and prevent misuse, each time you
enter the Setting interface, you need to enter the password once. The default password is
1234. There is a delay of a few seconds in the judgment of the password, please be patient
and wait for the entry icon to turn on and change to green, click and enter Setting menu
interface, select the system set, battery set, grid set, generator set, basic set, advanced set
and others. Enter the sub-setting interface for parameter modification (If the password is
wrong, the entry icon closes and turns red, you need to re-enter the correct password. If
you click on the icon at this time, it will display "Error", you can only click on the home
return button or back button to re-enter the password interface and enter the correct
password).
In each sub-setting interface, the selection way is to click on the hollow circle to make it
become a solid circle or click on the box to make the check mark appear, and the input way
is to click on the rectangular input box to use the keyboard to input the numbers (there is
no need to input the unit), and then click on save button to take effect. After successful
setting, it will return back to the previous interface automatically. Any parameter
modification needs to click save to take effect, otherwise the modification will not work.
LCD brightness and standby time are adjusted by clicking the plus/minus icon or dragging
the slider, and system time is adjusted by clicking the plus/minus icon. Similarly, you need to
save after modification. The parameter settings have limited the range of input values to
protect against accidental touch, so you can operate with peace of mind.
• Operation Flow Chart

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4.2 REAL-TIME INFORMATION PAGE
• PV PAGE

This is PV Page, one page in total.

①Real-time data: It can display the two-channel
DC voltage, current, and power in real time, and
simultaneously display the current day, current
month, current year, and cumulative power
generation.
②Button: The right area of the screen is the
button area, the top one to return to the home
page, next to return to the previous page button,
page-up button, page-down button, save button.
When the button turns transparent, it means
untouchable.

• GRID PAGE

This is Grid Page, two pages in total. The number of pages is displayed in the lower left corner.
①Real-time data: Real-time display of grid voltage, current, AC output power and reactive power,
power factor, meter power, display of grid frequency, status and meter COM status, statistics of the
day, month, year, and the cumulative amount of bought/sold energy.
②Grid Power Status: Balance; Sell; Buy.
③Meter COM Status: Failure; OK.

• BATTERY PAGE

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 This is Battery Page, two pages in total. The number of pages is displayed in the lower left corner.
①Real-time data: Real-time display of battery voltage, current, power, power, working status,
detection status, BMS COM status, temperature, Max. charging and discharging current, LLC voltage
and current, and statistic of the day, month, year, and the cumulative amount of charged/discharged
energy.
②Battery working Status: Standby; Charge; Discharge.
③Battery Test Status: Disconnect; Charging allowed; Both allowed; Discharging allowed.
④BMS COM Status: Failure; OK.

• LOAD PAGE

This is Load Page, one page in total.

①Real-time data: Real-time display of load
voltage, current, power consumption, statistics
of the day, month, year, and the cumulative
amount of consumed energy.

• GEN PAGE
This is GEN Page, one page in total.
①Real-time data: Real-time display of the
voltage, current, power, frequency of the GEN.

• RUN PAGE
This is Run Page, one page in total.
①Real-time data: Real-time display of the
voltage and power of the load, the grid, the
inverter output, the battery, and the two PVs.

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• ERROR CODE PAGE
This is Error Code Page, nine pages in total. The
number of pages is displayed in the lower left
corner.
①Real-time data: Real-time display of latest
alarms (up to 99, 1 page stores 11), the latest is
displayed at top, and it doesn't show if there is
none. Specific contents include serial number,
alarm time, corresponding fault codes.

4.3 PASSWORD ENTER PAGE

This is Password Enter Page, you need to enter the password correctly before entering the Setting Page.
①The default password is 1234.
②If the password is wrong, the entry icon in the lower right corner turns red, the door closes and an
"X" appears; if the password is correct, the entry icon in the lower right corner turns green and the
door opens.
③If the password is correct, you can enter the setting page by clicking on the "door icon". If you click
on the wrong password, "ERROR" will pop up, and you can only go back to the home page or the
previous page by clicking on the button, and then go back to the password page to re-enter.
④When the settings are changed and you back out to the main page, the password will be cleared
automatically.

This is Keyboard Input Page.

①"0-9" is used to input numbers, "." is used to
input decimal, "+/-" is used to switch between
positive and negative values, "←" is used to delete,
"Esc" is used to quit or cancel input, " OK" is used to
confirm.

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4.4 SETTING PAGE
This is Setting Page, seven buttons in total.
①System set: switch on/off; anti-reflux source;
max. power selling; PV energy mode; charging and
discharging periods, power, battery SOC, voltage
settings.
②Battery set: Protocol Selection; Discharge
Protection; BAT Activation Mode; Equal Charge
Configuration; Float Charge Configuration.

③Grid set: frequency selection; upper and lower limits of grid voltage; reconnection time.
④Basic set: language; time; standby; brightness; buzzer; LED.
⑤Advanced set: battery paralleling; forced off-grid mode; PCS paralleling address; PCS paralleling
quantity; active/reactive power adjustment; power factor adjustment; PV shadow scanning; islanding
protection; low-voltage ride-through; clearing overload faults.
⑥System information: rated output power; FM version of LCD; program version of STM32,
DSP_slave/master, CPLD; startup countdown time.

4.5 SYSTEM INFORMATION PAGE

This is System Information Page, one page in total.
①Real-time data: Real-time display of rated
output power; FM version of LCD; program version
of STM32, DSP slave/master, CPLD; startup
countdown time.

4.6 SYSTEM SET PAGE

30
This is System Set Page, two pages in total. The number of pages is displayed in the lower left corner.

①Switch: Controls the power on and off of the inverter. means unselected, means selected.

②Work Mode:
i)Selling First: PV is used to power loads and battery, allowing the inverter to sell excess energy
generated by the solar panels back to the grid. If it is during a discharging period，energy of battery
can also be sold back to the grid. Prioritization of power supply sources for loads：PV>Grid>Battery.

ii)Anti-reflux to grid: The inverter only supplies power to the connected backup load. It neither
supplies power to household loads nor sells power to the grid. The built-in CT will detect the power
flowing back to the grid and will reduce the power of the inverter, only to supply local loads and
charge for battery.
iii) Anti-reflux to CT: The inverter supplies power to connected backup loads and household loads. If
PV power and battery power are insufficient, they will be supplied with grid power. The inverter
won’t sell power to the grid. In this mode, a CT is required and an external CT will detect the power
flowing back to the grid and will reduce the power of the inverter, only to supply local and household
loads, charge for battery.
③Solar Sell: It is a special pattern in the Anti-reflux to grid or Anti-reflux to CT mode. If this pattern
is on, excess energy can be sold back to the grid. At this time PV is prioritized for use as follows: loads,
charging battery, grid. means off, means on.
④Max Sell Power: The maximum output power allowed to flow into the grid.
⑤Zero-export Power: The maximum amount of power flowing into the grid with the “Solar Sell” off.
⑥Energy Mode: Prioritization of PV energy supply.
i)Batt First: PV energy supply is first used to charge the battery and then used to power the load. If
the PV energy is insufficient, the grid will supply both the battery and the load.
ii)Load First: PV energy supply is first used to power the load and then used to charge the battery. If
the PV energy is insufficient, the grid will supply both the battery and the load.
Note: If operating on off-grid status, the PV energy mode is always load first.

⑦Charging and Discharging Periods: Up to six charging and discharging time periods can be set,
click the circle to select charging(CHG) and discharging(EDC) mode, solid circle means selected. For
convenience, hours and minutes are set separately, click on the input box and enter with the
keyboard, set the start time first and then set the end time. Moreover, charge and discharge power
can be set, as well as battery cut-off SOC and voltage. In order to avoid generating program conflicts,
the two time periods front and rear are configured with a continuous relationship, where the end
time of the previous period is the start time of the subsequent period.
In addition, if the battery protocol is a Pb Acid, the battery cut-off SOC item can only be set to 0% or
100% when setting the period parameter. Charging needs to be set to 100% and discharging needs to
be set to 0%.

⑧GEN Charge: utilize diesel generator to charge the battery in a time period.

31
4.7 BATTERY SET PAGE
This is Battery Set Page, two pages in total. The
number of pages is displayed in the lower left
corner.
①Protocol Setting: Select battery BMS protocol,
currently supports Pb Acid and
CAN-Bus-proto-PYLON-v1.3. Click to sub-page to
select, and click save, back to Battery set page.
②Discharging Protection:
i)Cut-off: Set the battery discharge to stop only
when it reaches the given conditions (battery SOC
and voltage in on-grid/off-grid state).
ii)Restored: Set the power supply to load to restore
only when it reaches the given conditions (battery
SOC and voltage in on-grid/off-grid state).
iii)Discharge Max. Current: The maximum value of
current allowed to be reached in the discharging
state of the battery.
③Active BAT Mode enable: Restore the battery
from its over-discharged state by slowly charging it
from the PV array or the grid. This feature needs to
be set up when the inverter is down.
④Equal Charge: Battery equal charge voltage and
current can be set.
⑤Float Charge: Battery float charge voltage,
current and time (in minutes) can be set.

4.8 GRID SET PAGE

This is Grid Set Page, one page in total.
①Frequency select: please select your local grid
frequency, you can choose 50Hz, 60Hz.
②Grid Voltage: Upper and lower grid voltage
limits can be set.
③Grid Frequency: Upper and lower grid
frequency limits can be set.
④Grid Reconnect delay: The reconnection time
can be set in the on-grid state.
Note: The grid frequency needs to be selected
when the inverter is down, and the inverter needs
to be powered back on after the selection is
completed.

32
4.9 BASIC SET PAGE
This is Basic Set Page, six buttons in total.
①Language: LCD language can be set, switching
between 中文 and English.
②Set RTC Time: The RTC time can be changed.
③LCD Standby: Screen standby time can be set,
that is to say, how long there is no touch to apply
to the screen, its brightness is automatically
reduced to lowest. The settable range is 1~240s.
④Brightness: The current brightness of the
screen can be set. The settable range is 1~100%.
⑤Buzzer: Buzzer can be set to sound or not
when touching.
⑥LED: Support LED night mode function, you can
set whether to enable or not and time period.

This is Language Page.

①中文 and English languages are supported.
②The current language is displayed in real time
by the color of the option block, blue is selected,
white is not.
③When you change the language, you can judge
whether the click is effective or not by whether the
color of the option block changes to blue, and then
click Save.
④After changing the language, it will take a few
seconds for all the text to be changed to the new
language, so please don't click it too often.

This is Set RTC Time Page.

①RTC time can be set to meet the needs of
different areas of use.
②For ease of operation, the year, month, day,
hour, minute, and second are added and
subtracted respectively. Y-M-D H:M:S means
Year-Month-Day Hour: Minute: Second.
③After changing the time, you can return to the
main page to see that the system time has been
changed to the newly set time.

33
This is LCD Standby Page.
①Screen standby time can be set, that is to say,
how long there is no touch to apply to the screen,
its brightness is automatically reduced to lowest.
②There are two ways to adjust, clicking on the
plus or minus icon or dragging the slider to adjust.
③The settable range is 1~240s.The default value
is 240s.

This is Brightness Page.

①The current brightness of the screen can be set
to be displayed as a percentage of the maximum
brightness.
②There are two ways to adjust, clicking on the
plus or minus icon or dragging the slider to adjust.
③The settable range is 1~100%. To protect the
screen, upper and lower limits are set for the
actual display brightness. The default value is
64%。

This is Buzzer Page.

①Buzzer can be set to sound or not when
touching.
②The current buzzer setting is displayed in real
time by the option block color, blue is the current
buzzer selected state.
③When changing the buzzer switch, you can
judge whether the click is valid by whether the
option box color changes to blue, and then click
save setting.

This is LED Page.

①For settings related to controlling the LED light
off at night.
②You can set whether to enable the LED night
mode or not.
③You can set the time period to use the night
mode and enable the control function, to realize
automatic control of LED light off.

34
4.10 ADVANCED SET PAGE

This is Advanced Set Page, two pages in total. The number of pages is displayed in the lower left
corner.
①Force Off-grid Mode：Use this function to force a switch to the off-grid state, which prioritizes
power to the load in this mode.
②Only PV off-grid enable: Inverter In the off-grid state with only PV input, if this function is enabled,
the machine can start to supply power to the load. This feature needs to be set up when the inverter
is down.
③GEN Signal: If this function is turned on, then when the power grid suddenly disappears, the
inverter will send a dry contact signal to control the generator to start running; When the power grid
returned to normal, the dry contact signal was disconnected and the generator stopped working.
④PCS Parallel: Support PCS parallel function, you can set the address and quantity of parallel
machine. (Multiple machines in parallel: the address of each machine must start from 1, consecutive
and less than or equal to parallel quantity). This function needs to be set when the inverter is down,
and the inverter needs to be powered back on after the setup is completed.
⑤Overload Reset: After an alarm occurs, while other kinds of fault can be cleared automatically,
only overload faults need to be cleared manually with this function. The operation way is to click on
the hollow circle to change it to a solid circle, click on the Save button, and return to the Setting page
automatically, then the overload fault is cleared successfully once. The next time you need to clear it,
just repeat the operation above.
⑥Smart Load Output: This mode utilizes the Gen input connection as an output witch only receives
power when the battery SOC and Voltage is above a user programmable threshold. This feature
needs to be set up when the inverter is down.

35
 5
Contents
TROUBLE-
SHOOTINGS
5.1 Warning List
System Warning
Warning Event Description Solutions
Code 1
1. Check the AC voltage is in the range of
The Grid Voltage is
standard voltage inspecification;
Higher than the
2. Check whether grid AC cables are firmly
0 Over Ugrid setting value when
and correctly connected;
the inverter is
3. If the error message still remains, please
running
contact your installer.
1. Check the AC voltage is in the range of
The Grid Voltage is
standard voltage inspecification;
Lower than the
2. Check whether grid AC cables are firmly
1 Under Ugrid setting value when
and correctly connected;
the inverter is
3. If the error message still remains, please
running
contact your installer.
1. Check the frequency is in the range of
The Grid Frequency
specification or not;
is Higher than the
2. Check whether AC cables are firmly and
2 Over Fr setting value when
correctly connected;
the inverter is
3. If the error message still remains, please
running
contact your installer.
1. Check the frequency is in the range of
The Grid frequency
specification or not;
is Lower than the
2. Check whether AC cables are firmly and
3 Under Fr setting value when
correctly connected;
the inverter is
3. If the error message still remains, please
running
contact your installer.
1. Check whether grid AC cables are firmly
The Grid is Loss and correctly connected;
4 Line Check when the inverter 2. Restart the inverter 2-3 times;
is running 3. If the fault still existing, please contact us
for help.
1. Check the PV is in the range of
The PV voltage is specification or not;
lower than 120V 2. Check whether PV cables are firmly and
5 Under Upv
when turn on the correctly connected;
PV switch 3. If the error message still remains, please
contact your installer.
6 Reserved
7 Reserved
8 Reserved
9 Reserved
10 Reserved
11 Reserved
36
 12 Reserved
13 Reserved
14 Reserved
15 Reserved

System Warning
Warning Event Description Solutions
Code 2
1. Check the battery voltage;
The battery
2. Check whether Battery cables are firmly
voltage is lower
UBATTERY_LO and correctly connected;
0 than 44V or lower
W 3. Restart the inverter 2-3 times;
than the SOC
4. If the fault still existing, Please contact
that you setting
your installer.
1. Check the battery voltage;
2. Check whether Battery cables are firmly
UBATTERY_LOS
The battery is and correctly connected;
1 S
lower than 25V 3. Restart the inverter 2-3 times;
4. If the fault still existing, Please contact
your installer.
2 Reserved
3 Reserved
1. Restart the inverter 2-3 times;
The FAN isn’t
4 Fault FAN 2. If the fault still existing, Please contact
working
your installer.
5 Reserved
1. Check the battery voltage;
The battery 2. Check whether Battery cables are firmly
Battery
voltage and correctly connected;
6 Transient
is lower than 40V 3. Restart the inverter 2-3 times;
under voltage
at one moment 4.If the fault still existing, Please contact
your installer.
7 Reserved
8 Reserved
1, The BUS voltage can't be built from PV or
battery.
2. Check whether Battery cables are firmly
The DC side isn’t
9 DC Stop and correctly connected;
working
3. Restart the inverter 2-3 times;
4. If the fault still existing, Please contact
your installer.
10 Reserved
11 Reserved
12 Reserved
13 Reserved
14 Reserved
15 Reserved

37
5.2 Fault Reference Codes

System Fault
Fault Event Description Solutions
Code 1
1. Check the PV is in the range of
The PV voltage is specification or not;
lower than 20V, 2. Check whether PV cables are firmly and
0 Under Upv1
and the current is correctly connected;
higher than 2A 3. If the error message still remains, please
contact your installer.
DC side over current fault
1. Check PV module connect and battery
connect;
The PV current is 2. Turn off the DC switch and AC switch and
1 Over Ipv1
higher than 30A then wait one minute, then turn on the
DC/AC switch again;
3. If the error message still remains, please
contact your installer.
1. Check the PV is in the range of
specification or not;
The PV voltage is 2. Check whether PV cables are firmly and
2 Over Upv1
higher than 500V correctly connected;
3. If the error message still remains, please
contact your installer.
DC side over current fault
1. Check PV module connect and battery
connect;
The PV current is 2. Turn off the DC switch and AC switch and
3 Over Ipv2
higher than 30A then wait one minute, then turn on the
DC/AC switch again;
3. If the error message still remains, please
contact your installer.
1. Check whether the work environment
temperature is too high;
The temperature is 2. Turn off the inverter for 10mins and
4 Over temp
higher than 100℃ restart;
3. If the fault still existing, please contact us
for help.

38
 AC side over current fault
1. Please check whether the backup load
power and common load power are within
the range;
2. Restart and check whether it is in normal;
AC over current 3. Check the backup load connected, make
5 Over Iac
fault sure it is in allowed power range
4. If the fault still exists, please contact us
for help
5. If the error message still remains, please
contact your installer.
Grid voltage fault
The Grid Voltage is 1. Check the AC voltage is in the range of
Higer than the standard voltage inspecification;
6 Over Ugrid setting value when 2.Check whether grid AC cables are firmly
the inverter isn’t and correctly connected;
running 3. If the error message still remains, please
contact your installer.
Grid frequency out of range
The Grid
1. Check the frequency is in the range of
Frequency is Higer
specification or not;
than the setting
7 Over Fr 2. Check whether AC cables are firmly and
value when the
correctly connected;
inverter isn’t
3. If the error message still remains, please
running
contact your installer.
1. Check the backup terminal;
2. Detect the backup voltage with the
The backup is
multimeter;
8 Under Backup connected with
3. Restart the inverter 2-3 times;
the Grid
4. If the fault still existing, please contact us
for help.
1. check the total power of the inverter;
The BUS Voltage is 2. Restart the inverter 2-3 times;
9 Over Ubus
Higer than 560V 3. If the fault still existing, please contact us
for help.
Leakage current fault
1.Check the PV side cable ground
AC leakage current connection;
10 Over Ileak
fault 2. Restart the inverter 2-3 times;
3. If the fault still existing, please contact us
for help.
1. Restart the inverter 2-3 times;
The Relay isn’t
11 Fault Relay 2. If the fault still existing, please contact us
working
for help.
PV isolation resistance is too low
1. Check the connection of PV panels and
inverter is firmly and correctly;
DC insulation
12 Fault GFD 2. Check whether the PE cable of inverter is
failure
connected to ground;
3. If the error message still remains, please
contact your installer.

39
 1. Check the backup terminal;
Detect the backup voltage with the
Over Backup The Backup multimeter;
13
Voltage Voltage is high 2. Restart the inverter 2-3 times;
3. If the fault still existing, please contact us
for help.
The inverter 1. check the power of the backup load;
14
current is high and 2. Restart the inverter 2-3 times;
XINT Iac
touch the 3. If the fault still existing, please contact us
protection. for help.
1. Check the other fault code of the inverter
and according to the solution to solve the
15
Remote Turn off the problem.
Shutdown inverter 2. Restart the inverter 2-3 times;
3. If the fault still existing, please contact us
for help.

System Fault
Fault Event Description Solutions
Code 2
The upper 1. Restart the inverter 2-3 times;
computer 2. If the fault still existing, please contact us
0 Fault SPI communicates for help.
with the lower
computer fault
Grid voltage fault
The Grid Voltage is 1. Check the AC voltage is in the range of
Lower than the standard voltage inspecification;
1 Under Ugrid setting value when 2. Check whether grid AC cables are firmly
the inverter isn’t and correctly connected;
running 3. If the error message still remains, please
contact your installer.
Grid frequency out of range
The Grid
1. Check the frequency is in the range of
Frequency is
specification or not;
Lower than the
2 Under Fr 2. Check whether AC cables are firmly and
setting value when
correctly connected;
the inverter isn’t
3. If the error message still remains, please
running
contact your installer.
1. Check the PV is in the range of
The PV voltage is specification or not;
lower than 20V, 2. Check whether PV cables are firmly and
3 Under Upv2
and the current is correctly connected;
higher than 2A 3. If the error message still remains, please
contact your installer.
1. Check the PV is in the range of
specification or not;
The PV voltage is 2. Check whether PV cables are firmly and
4 Over Upv2
higher than 500V correctly connected;
3. If the error message still remains, please
contact your installer.
5 Reserved

40
 1. check the total power of the inverter;
The BUS Voltage is 2. Restart the inverter 2-3 times;
6 Under Ubus
Lower than 300V 3. If the fault still existing, please contact us
for help.
7 Reserved
1. Check whether the work environment
temperature is too high or too low;
2. Turn off the inverter for 10mins and
8 Fault Temper The Temper is fault
restart;
3. If the fault still existing, please contact us
for help.
1. check the total power of the inverter;
2. Restart the inverter 2-3 times;
9 Over Load
3. If the fault still existing, please contact us
for help.
10 Reserved
1. When in parallel mode, check the
parallel communication cable connection
and hybrid inverter communication address
Parallel Data
11 Parallel Data Loss setting;
Loss
2, Restart the inverter 2-3 times;
3. If the fault still exists, please contact us
for help.
1. When in parallel mode, check the
parallel communication cable connection
and hybrid inverter communication address
Parallel Phase
12 Parallel Phase Loss setting;
Loss
2. Restart the inverter 2-3 times;
3. If the fault still exists, please contact us
for help.
1. Check the hybrid inverter work status.
According to the fault code to solve the
Parallel system
13 Parallel Stop problem.
stop
2. If the fault still existing, please contact us
for help.
1. check the PV voltage and the power of
The PV boost
the backup load;
current is high and
14 XINT Ipv 2. Restart the inverter 2-3 times;
touch the
3. If the fault still existing, please contact us
protection.
for help.
15 Reserved

41
System Fault
Fault Event Description Solutions
Code 3
1. check the total power of the inverter;
The BUS Voltage is 2. Restart the inverter 2-3 times;
0 UBUS_OVER
Higer than 560V 3. If the fault still existing, please contact us
for help.
1. check the total power of the inverter;
The BUS Voltage is 2. Restart the inverter 2-3 times;
1 UBUS_LOW
Lower than 300V 3. If the fault still existing, please contact us
for help.
1. Check the battery voltage;
The Battery
UBATTERY_OVE 2. Restart the inverter 2-3 times;
2 Voltage is Higer
R 3. If the fault still existing, please contact us
than 60V
for help.
3 Reserved
1. check the total power of the inverter
include the charging and the discharging
The LLC current is current;
4 ILLC_OVER
high 2. Restart the inverter 2-3 times;
3. If the fault still existing, please contact us
for help.
1. check the total power of the inverter
The Buck-boost include the charging and the discharging
IBuckBoost_OV voltage is high and current;
5
ER touch the 2. Restart the inverter 2-3 times;
protection 3. If the fault still existing, please contact us
for help.
1. check the total power of the inverter
include the charging and the discharging
The LLC voltage is current;
6 ULLC_OVER high and touch the 2. Check the battery voltage;
protection 3. Restart the inverter 2-3 times;
4. If the fault still existing, please contact us
for help.
The upper 1. Restart the inverter 2-3 times;
computer 2. If the fault still existing, please contact us
7 Fault data SPI communicates for help.
with the lower
computer fault
The upper 1. Restart the inverter 2-3 times;
computer 2. If the fault still existing, please contact us
8 Over time SPI communicates for help.
with the lower
computer fault
The battery 1. check the discharging current that you
current is higher setting;
9 Over Ibat than 1.5 multiples 2. check the total power of the inverter;
of the setting 3. If the fault still existing, please contact us
value for help.
10 Reserved
11 Reserved
42
 12 Reserved
13 Reserved
1. check the total power of the inverter
include the charging and the discharging
The LLC current is
current;
14 ILLC_XINT high and touch the
2. Restart the inverter 2-3 times;
protection
3. If the fault still existing, please contact us
for help.
1. check the total power of the inverter
The Buck-boost include the charging and the discharging
IBuckBoost_XIN current is high and current;
15
T touch the 2. Restart the inverter 2-3 times;
protection 3. If the fault still existing, please contact us
for help.

5.3 TROUBLESHOOTINGS
•TROUBLESHOOTINGS

Checking Before Starting Up

PV Input Connection: Confirm the connection between inverter and PV panels:polarity
( +/-)not reversed
Battery Connection: Confirm the connection between inverter and battery : polarities ( +/-)
not reversed
On-Grid & Back-Up Connection: Confirm On-Grid connected to public grid and Back-Up to
loads : polarity ( L/N) not reversed
Problems During Operation
Hybrid inverter not Start Up With ONLY Battery
Solution Make sure the voltage of battery is higher than 48V,
otherwise battery cannot start Hybrid inverter up.

Hybrid inverter not Start Up With ONLY PV

Solution Only PV cannot start, so ensure that one of the grid and
battery is normal.

No Discharge or Output from Hybrid inverter at Night Without PV or PV

Power Lower Than Load Power:
Solution Refer to "Battery Protection Instructions" in 2.4.2

Battery Not Charge When PV Power Higher Than Load Power:

Solution 1.Check if charge voltage on App (Set Basic Setting) is properly
set (for lead-acid battery) as battery cannot charge if battery
voltage reaches charge voltage.
2.Check if it is during discharge time set on App.
43
 3.Check if battery is fully charged or not, or battery voltage
reach "charge voltage" or not.
4.Check if the SOC is higher than 98%.

High Power Fluctuation Battery Charge or Discharge:

Solution 1.Check if there is a fluctuation on load power;
2.Check if there is a fluctuation on PV power.

Battery Does Not Charge

Solution 1.Make sure BMS communication is OK on App (for lithium
batteries);
2.Check if the total load power is much higher than PV power.

Questions & Answers (Q & A)

About Battery Operation
Q: Why battery switch always trip when starts it up (Lithium battery)?
A: For lithium battery like BYD , normally the switch trips for flowing
reason:
1.BMS communication fails, or battery SOC is so low to protect itself.
2.Battery SOC is too low, battery trips to protect itself.
3.An electrical short-cut happened on battery connection side.

Q: How to set the battery charging and discharging current?

A: Inverter factory default battery charging current 10A and discharging
current20A.You can adjust it according to the specifications of the
battery used.

About SOLARMAN Smart APP Operation and Monitoring

Q: Why Cannot save settings on App
A: This could be caused by losing connection to Solar-WiFi.
1.Make sure you connected Solar-WiFi (make sure no other devices
connected) or router (if connected Solar-WiFi to router) and on APP
home page shows connection well.
2.Make sure Hybrid inverter under waiting mode (on APP) before you
change any settings on SOLARMAN Smart disconnect grid/load/battery,
only leave PV connected and then restart till see work mode as “wait"
on APP.

Q: On App, some columns show NA, like battery SOH, etc. why is that?
A: NA means App does not receive data from inverter or server,
normally it is because communication problem, such as battery
communication, and communication between inverter and the APP.
44
About Meter and Power Limit Function
Q: How to Act Output Power Limit function?
A: For Hybrid Inverter system, the function could be realized by:
1. Make sure Meter connection and communication well;
2. Turn on Export Power Limit function and Set the max output power
to grid on APP
Note: lf Out-put Power Limit set as 0W, then there might still have deviation max 100W
exporting to grid.

Q: Why there is still power exporting to grid after I set power limit as
0W?
A: Export limit could theoretically to minimum 0W, but there will have a
deviation of around 50-100W for Hybrid Inverter system.

45
 6
Contents
OTHERS
6.1 DISCLAIMER
The hybrid inverters are transported, used and operated under environmental and electrical
conditions. We have the right not providing after-sales services or assistance under
following conditions:
•Inverter is damaged during transferring.
•The inverter is out of warranty and no extended warranty is required.
•Inverter is installed, refitted or operated in improper ways without authority from us.
•Inverter is installed or used under improper environment or technical condition
mentioned in this user manual，without authority from us.
•Installation or configuration of the inverter does not follow requirements mentioned in
this user manual.
•The inverter is installed or operated against the requirements or warnings that are
mentioned in this user manual.
•inverter is broken or damaged by any force majeure like lightening, earthquake, fire
hazard, storm and volcanic eruption etc.
•Inverter is disassembled, changed or updated on software or hardware without authority
from us.
•Inverter is installed, used or operated against any related items in international or local
policies or regulations.
•Any non-compatible batteries, solar panels, loads or other devices connected to Hybrid
inverter system
We will keep right to explain all the contents in this user manual.

*Maintenance
The inverter requires periodically maintenance, details as below:
Make sure inverter is totally isolated from all DC and AC power for at
least 5 mins before maintenance
Heat sink: please use clean towel to clean up heat sink once a year.
Torque: please use torque wrench to tighten AC and battery wiring connection once a year.
DC switch: check DC switch regularly, active the DC switch 10 times in a row once a year.
Operating DC switch will clean contacts and extend lifespan of DC switch.

46
Appendix: Protection Category Definition
Environment Category Definition

Environment Condition Ambient Temperature Relative Humidity Applied to

Outdoor -20~+50℃ 4%~100% PD3

Indoor Unconditioned -20~+50℃ 5%~95% PD3

Indoor Conditioned 0~+40℃ 5%~85% PD2

Pollution Degree Definition

Pollution No pollution or only dry, non-conductive pollution occurs. The
Degree I pollution has no influence
Pollution Normally only non-conductive pollution occurs. Occasionally,
Degree I however, a temporary conductivity caused by condensation must
be expected.
Pollution Conductive pollution occurs, or dry, non-conductive pollution
Degree II occurs, which becomes conductive due to condensation which is
expected.
Pollution Persistent conductive pollution occurs, for example, the pollution
Degree IV caused by conductive dust, rain and snow.

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6.2 TECHNICAL PARAMETERS
MODEL IHY-6KL1A IHY-8KL1A
PV input
Max input voltage 500 V
Isc PV (absolute Max.) 22.5/22.5 37.5/22.5
(A)
Max input current(A) 18A/18A 30A/18A
Number of MPPT 2
channels
MPPT Range (Vdc) 150~450
Vdc range @ full power 240~425
(Vdc)
Max input PV power (VA) 12000 16000
Battery ( charge/discharge)
Battery type Li-ion/Lead-acid
Rated battery voltage 48V(44-57V)
Max charge/discharge 120 190
Current(A)
Max charge/discharge 6000 8000
Power(W)
AC Grid (input and output)
Rated AC Voltage (VAC) 220/230(single phase)
Rated Frequency (Hz) 50/60
Max.output current (A) 27 40
Max. output Power (W) 6000 8000
Max. Apparent Power 6000 8800
(VA)
Power factor(adjustable) 1~(0.8 leading to 0.8 lagging)
AC Load output (stand alone)
Rated Voltage (VAC) 220/230(single phase)
Rated Frequency (Hz) 50/60
Rated Current(A) 27 40
Max. output power (W) 6000 8000
Overload Capability (off >200% for 15 sec
grid)
Output Power Factor(off 1~(0.8 leading to 0.8 lagging)
grid)
Output Current THD<3%(Nonlinear load); THD<1.5%(Linear load)
Harmonic Distortion
Others
Ingress protection (IP) IP66
Protective class Class I
Temperature (℃) -25℃~+60℃
Inverter Isolation Non-isolated PV- AC
High frequency isolated(Battery Side)
Overvoltage category OVC III (AC Main), OVC II (PV)

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Dimensions,D*W*H 198*427*554
(mm)
Weight（kg） 21.3 23
Altitude 2000m

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