INVT iMars BD3KTL-PS User manual

Operation Manual
iMars BD3KTL-PS
Energy Storage Inverter
INVT Solar Technology (Shenzhen) CO., LTD

i
Preface
Thank you for choosing energy storage inverter.
3kW energy storage inverter is a bi-directional and high frequency isolated inverter. It is able to
generate power from battery to feed the grid (utility) and also can charge the battery from the
grid.
This manual contains detailed information of installation, application, trouble shooting,
procedures and maintenance of 3kW energy storage inverter. In order to ensure correct use
and high performance, please read this manual carefully and follow all safety precautions
seriously before any moving, installing, operating and maintaining.
The monitoring software for the energy storage inverter can be achieved in our website. Please
install monitoring software in your mobile phone or computer after downloading.
The inverter complies with local regulations and laws on grid feeding.
The manual needs to be kept well and can be accessed easily.
This manual is for qualified personnel. The tasks described in this manual may be performed
by qualified personnel only.
All rights reserved. The contents in this document are subject to change without notice.
There may be data deviation because of product improving. Detailed information is in
accordant with the final product.

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Content
Preface............................................................................................................................................i
Content..........................................................................................................................................ii
Chapter 1 Safety precautions.....................................................................................................1
1.1 Warning.................................................................................................... 1
1.2 Safety guidance ......................................................................................... 2
1.3 Transportation & installation ......................................................................... 3
1.4 Operation.................................................................................................. 3
1.5 Maintenance & Replacement........................................................................ 4
1.6 Recycle.................................................................................................... 5
Chapter 2 Product overview.......................................................................................................6
2.1 Energy-storage system................................................................................ 6
2.2 Product appearance.................................................................................... 7
2.3 Label description........................................................................................ 8
2.4 DRM instruction ......................................................................................... 9
2.5 Dimension and weight............................................................................... 10
Chapter 3 Storage......................................................................................................................11
Chapter 4 Installation ................................................................................................................12
4.1 Unpacking confirmation ............................................................................. 12
4.2 Preparation before installation..................................................................... 14
4.2.1 Tools and Instrument .......................................................................................14
4.2.2 Selecting Mounting Location............................................................................15
4.3 Wall-Mounted Installation........................................................................... 17
4.4 Electrical installation ................................................................................. 19
4.4.1 Grid connection................................................................................................19
4.4.2 Battery connection ...........................................................................................20
4.4.3 Communication connection .............................................................................23
4.4.4 RS485 Communication connection.................................................................23

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4.4.5 DRM connection...............................................................................................24
Chapter 5 Commissioning........................................................................................................26
Chapter 6 Display panel............................................................................................................27
6.1 LED indicators ......................................................................................... 27
6.2 Operation panel ....................................................................................... 28
6.2.1 Button instruction .............................................................................................28
6.2.2 LCD screen.......................................................................................................28
6.2.3 Functions operation..........................................................................................29
6.3 Grid standard Choice ................................................................................ 37
Chapter 7 Maintenance & Cleaning ........................................................................................39
Chapter 8 Troubleshooting.......................................................................................................40
Chapter 9 Technical parameter................................................................................................43
Chapter 10 Contact us...............................................................................................................44

iMars BD3KTL-PS Energy Storage Inverter Safety precautions
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Chapter 1 Safety precautions
This inverter has been designed and tested strictly according to international safety regulations.
Read all safety instructions carefully prior to any work and observe them at all times when working
on or with the inverter.
Incorrect operation or work may cause:
injury or death to the operator or a third party;
damage to the inverter and other properties belonging to the operator or a third party.
This chapter describes various warning symbols in this manual. It is intended to provide the
installers and the users with all safety information about installation, operation, and use of the
inverter.
Disclaimer
INVT shall not be liable for any consequence caused by any of the following events:
Damage cause by transportation;
Storage conditions that do not meet the requirements specified in this manual;
Incorrect storage, installation, or use;
Installation or use by unqualified personnel;
Failure to comply with the operation instructions and safety precautions in this manual;
Operation in extreme environments which are not covered in this manual;
Operation beyond specified ranges;
Unauthorized modifications which are not covered in this document;
Device damage due to force majeure(such as lighting, earthquakes, fire, and storms);
Warranty expiration without extension of the warranty service;
Installation or use in environments which are not specified in related international standards;
1.1 Warning
This manual provides relevant information with icons to highlight the physical property safety of the
users to avoid device damage and physical injury.
The icons used in this manual are listed below:

iMars BD3KTL-PS Energy Storage Inverter Safety precautions
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Symbols
Name
Instruction
Abbreviation
Danger
Danger
Serious physical injury or even death may
occur if not follow the relative requirements
Warning
Warning
Physical injury or damage to the devices
may occur if not follow the relative
requirements
Do not
Do not
Damage may occur if not follow the relative
requirements
Hot surface
Hot
surface
Sides of the device may become hot. Do
not touch.
Note
Note
Physical hurt may occur if not follow the
relative requirements
Note
1.2 Safety guidance
Before performing maintenance tasks, power off the inverter, disconnect
all circuits and wait at least 5minutes.
Please check the product package upon receiving the product. If there
is any question, please contact the transportation company and local
distributor immediately.
Use only recommended accessories from installer. Otherwise,
not-qualified tools may cause a risk of fire, electric shock, or injury to
persons.
Ensure there is no strong electromagnetic interference which is
generated by other electronic/electrical devices around the installation
location.
Do not disassemble this inverter yourself. It contains no
user-serviceable parts. Attempt to service this inverter yourself may
cause a risk of electrical shock or fire and will void the warranty from the
manufacturer.
This inverter is heavy. It should be lifted by at least two persons.
To avoid a risk of fire and electric shock, make sure that existing wiring
is in good condition and that the wire is not undersized. Do not operate
the inverter with damaged or substandard wiring.
AC breaker and Battery circuit breaker are used as disconnect devices
and these disconnect devices shall be easily accessible.
The shell or radiator may become hot during inverter running. Do not
touch to avoid hurt.

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Proper and reliable grounding is a must before operation.
Do not open the surface cover of inverter unless authorized. The
electrical parts and components inside the inverter are
electrostatic-sensitive. Take measures to avoid electrostatic discharge
during relevant operation.
Note: Only certified electricians are allowed to install, connect cables for, commission,
maintain, troubleshoot, and replace the inverter. They should:
Receive professional training;
Read through this manual and follow all the precautions;
Be familiar with the safety specifications about the electrical system;
Understand the composition and working principles of the Energy-storage system
and local regulations;
Wear proper personal protective equipment(PPE);
1.3 Transportation & installation
During storage and transportation, ensure that the packaging and unit
are complete, dry and clean.
This inverter is heavy. It should be lifted by at least two persons.
To ensure the normal and safe operation of the energy storage inverter
and avoid personal injury, Please select proper handling and installation
tools and take mechanical protection measures to protect personal
safety, such as wearing smashing shoes, coverall and so on.
Only certified electricians are allowed to install.
Do not install the inverter in areas with flammable or explosive
materials.
Do not install the inverter in a place where a person can easily touch it.
To avoid a risk of electric shock, please remove rings, bracelets and
other metal jewelry on your hands before installation and electrical
connection.
To avoid a risk of destroy, the input voltage should be within specified
ranges
Proper and reliable grounding is a must before operation.
1.4 Operation
Operate the inverter by qualified personnel after getting permission from
the local power department.
All electrical installations must be in accordance with local and national
electrical codes.

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All cables must be firmly attached, undamaged, properly insulated and
adequately dimensioned.
Do not open the enclosure when the inverter is working or any circuits is
connecting to the inverter.
1.5 Maintenance & Replacement
Do not disassemble this inverter yourself. It contains no user-serviceable
parts. Attempt to service this inverter yourself may cause a risk of
electrical shock or fire and will void the warranty from the manufacturer.
Only certified electriciuans are allowed to maintain, troubleshoot, and
replace the inverter.
Please contact the distributor or manufacturer if need maintenance.
Temporary warning signs or fences must be placed to prevent
unauthorized personnel from entering the maintenance area.
Authorized service personnel should reduce the risk of electrical shock by
disconnecting AC and battery from the inverter before attempting any
maintenance or cleaning or working on any circuits connected to the
inverter. Turning off controls will not reduce this risk. Internal capacitors
can remain charged for 5 minutes after disconnecting all sources of
power.
Please observe the static electricity protection regulations and do well in
anti-static measures because there are mostly electrostatic sensitive
circuits and devices in the internal.
Use only recommended accessories from installer. Otherwise,
not-qualified tools may cause a risk of fire, electric shock, or injury to
persons.
Do not touch an energized inverter, because the heat sink reaches a high
temperature.
Contact your supplier if all the condition are OK but the fault still exists.
Do not close or touch any charged metal conductor parts of the running
system, otherwise it may cause a risk of electric shock or fire.
Please pay attention to any safety signs and instructions.

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1.6 Recycle
Do not dispose of the product as household garbage. The user has the
responsibility to send the inverter to the designated organization for
recycling and disposal.

iMars BD3KTL-PS Energy Storage Inverter Product overview
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Chapter 2 Product overview
This chapter mostly shows the inverter appearance, label and so on.
2.1 Energy-storage system
The energy storage system is composed of battery, inverter, distribution box, smart meter,
circuit breakers and public power grid.
Figure 2.1 Energy-storage system
A
B
C
D
E
F
Grid
Distributor box
AC breaker
Inverter
DC switch
Battery

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2.2 Product appearance
Fig 2.2 product appearance
Table 2-1 Parts instruction
No.
Name
Instruction
1
LCD display panel
LCD display, operation buttons, LEDs
2
AC Grid connectors
AC Grid input
3
DRM port
DRM0 input
4
/
/
5
Battery connectors
Battery input
6
Communication port
Communicate with monitoring system
7
RS485 communication port
Communicate with monitoring system or BMS

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2.3 Label description
（1）Trademark and product model
（2）Important technical specifications
（3）Compliance symbols
（4）Company name and country of manufacture

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Symbol
description
TUV certification identification. The inverter obtains TUV certification.
CE certification identification. The inverter conforms to CE instruction.
CQC certification identification. The inverter obtains CQC certification
2.4 DRM instruction
Figure 2.3 DRM label
Table 2-2 DRMs instruction
No.
Mode
Requirement
1
DRM0
Operter the disconnection devise
2
DRM1
Do not consume power
3
DRM2
Do not consume at more than 50% of rated power
4
DRM3
Do not consume at more than 75% of rated power AND Source
reactive power if capable
5
DRM4
Increase power consumption(subject to constraints from other active
DRMs)
6
DRM5
Do not generate power
7
DRM6
Do not generate at more than 50% of rated power
8
DRM7
Do not generate at more than 75% of rated power AND Sink reactive
power if capable
9
DRM8
Increase power generation(subject to constraints from other active
DRMs)
Note: The inverter only realize the DRM0 function.

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2.5 Dimension and weight
Fig 2.4 Outline dimension
Table 2-3 Outline dimension and net weight of the inverter
Model
H(mm)
W(mm)
D(mm)
N.W(kg)
3kW
507
360
150
20
W
H
D
Fig 2.5 Dimension for paper package
Table 2-4 Package dimension and gross weight
Model
H (mm)
W (mm)
D (mm)
Gross weight(kg)
Packing material
3kW
630
470
284
22
Paper

iMars BD3KTL-PS Energy Storage Inverter Storage
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Chapter 3 Storage
The following requirements should be met when the inverter needs to be stored prior to
installation：
Do not unpack.
Store in a clean and dry place and protect from dust and water vapor corrosion.
Keep the storage temperature at -30℃~+70℃and the humidity at 5%~95%RH.
It is suggested that the stacking layers should be placed according to the original delivery
when multiple inverters are stacked. To avoid personal injury or device damage, stack with
caution to prevent them from falling over.
Keep away from chemical corrosive substance, otherwise it will corrode the inverter.
Regular inspection is required during the storage. Replace the packing materials when
necessary.
After long-term storage, the inverter needs to be inspected and tested by qualified persons
before it is put into use.

iMars BD3KTL-PS Energy Storage Inverter Installation
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Chapter 4 Installation
This chapter shows installation, electrical connection. And the electrical connection contains grid
connection, battery connection, communication connection.
Please read this chapter carefully before installation and make sure that the installation of the
inverter is completed by a professional technician.
4.1 Unpacking confirmation
Before installation, please inspect the unit. Be sure that nothing inside the package is damaged,
and the information on the nameplate of the inverter is the ordered one. If there is any question,
please contact the supplier immediately.
Please put the idle inverter in its original packing box and take measures to prevent humidity and
dust.
You should have received the following items inside of the package as shown in fig 4.1 and table
4-1.

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Fig 4.1 Standard packing contents
Table 4-1 Packing list for 3kW energy storage inverter
No.
Name
Qty
1
Energy storage Inverter
1
2
Wall mounting plate
1
3
User Manual
1
4
Expanding bolt M6*50
4
5
Assembling bolt M5*20
2
6
Assembling bolt M4*10
2
7
AC connectors
1
8
Communication cable
1
9
RS485 cable
1
10
Battery connectors
1(pair)
11
Battery connector cover
1

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4.2 Preparation before installation
4.2.1 Tools and Instrument

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4.2.2 Selecting Mounting Location
Please consider the following points before selecting where to install:
(1) Do not mount the inverter on flammable construction materials;
(2) Mount on a solid and fixed object surface, such as the surface of the wall and metal bracket;
(3) Install this inverter at eye level in order to allow the LCD display to be read at all times;
(4) Select an appropriate mounting location. Install the inverter in a protected area that is in good
ventilation and free from raindrops and direct sunlight;
(5) For proper air circulation to dissipate heat, allow a clearance of approx.200mm to the side
and approx. 450mm above and below the unit as shown in fig 4.2;
(6) The ambient temperature should be between -25℃~60℃to ensure optimal operation;
(7) The installation location should be away from electronic devices carrying strong
electromagnetic interference;
(8) The recommended installation position is to be adhered to vertical as shown in fig 4.3;
(9) Installation position shall not prevent access to the disconnection means.