DLG Energy Soluna S4 EU-A36 User manual

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Installation Manual
Battery Energy Storage System
Soluna S4 EU-A36
DLG Energy (Shanghai) Co., Ltd.
June 2020 Version V1.1

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About this manual
This manual describes how to install the SOLUNA Battery Energy Storage System
(referred to as BESS from hereon), the Soluna S4 EU-A36, manufactured by DLG
Energy (Shanghai) Co., Ltd.
Please read this manual before you attempt to install the product, and follow the
instructions throughout the installation process. If you are uncertain about any of
the requirements, recommendations, or safety procedures described in this
manual, contact DLG Energy (Shanghai) Co., Ltd. immediately for advice and
clarification.
The information included in this manual is accurate at the time of publication.
Regarding the product design and technical specification updates, our company
reserves the right to make changes at any time without prior notice. Also, the
illustrations in this manual are intended to help explain system configuration
concepts and installation instructions. The illustrated items may differ from the
actual products at the installation location
Please search the products sections of the websites www.soluna.com.au or
www.solunabattery.com to confirm that you are reading the latest version of
the Installation Manual. Please search for the Australian version.
Version Information
Version
Date
Content
Author
V1.0
21st May 2020
First edition
Henry
V1.1
1 June 2020
Updated contact details to
solunabattery.com
Henry

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Contents
Safety precautions..................................................................................................................4
Warning signs .....................................................................................................................5
Safety guide........................................................................................................................6
Transportation and installation ............................................................................................7
Grid-tied operation ..............................................................................................................8
Maintenance and replacement ............................................................................................8
What to do at the battery end of life.....................................................................................8
Product Introduction................................................................................................................9
Features..............................................................................................................................9
Application ..........................................................................................................................9
Outline Dimensions...........................................................................................................10
Functional description .......................................................................................................11
Working modes.................................................................................................................12
Active power and reactive power setting...........................................................................13
ALWAYS CHECK THE AS4777.2: 2015 SETTINGS WITH THE LOCAL GRID OPERATOR
..........................................................................................................................................13
Technical Data..................................................................................................................16
Technical data of System...............................................................................................16
Technical Data of the battery module.............................................................................17
Appearance.......................................................................................................................19
Installation ............................................................................................................................22
Installation tools.............................................................................................................22
Spacing during installation and operation..........................................................................23
Wiring specifications..........................................................................................................24
Installation step.................................................................................................................24
Unpacking confirmation .................................................................................................24
Basic installation requirement............................................................................................25
Installation procedures..........................................................................................................26
Step 1............................................................................................................................26
Step 2:...........................................................................................................................27
Step 3............................................................................................................................28
Step 4:...........................................................................................................................29
Step 5............................................................................................................................30
Step 6............................................................................................................................31
Step 7 :..........................................................................................................................34
How to operate Soluna S4 EU-A36.......................................................................................36
Turn on or turn off the Soluna S4 EU system................................................................36
How to operate the LCD....................................................................................................37
The LCD is operated by touch, to view the information in the LCD simply touch to view the
details................................................................................................................................37
How to check the information on the LCD screen..............................................................38
How to Setting parameters of Soluna system ................................................................40
How to check the information of “Data” icon...................................................................44
How to maintain....................................................................................................................47
Fault handling.......................................................................................................................47
Remote monitoring ...............................................................................................................49
Contact us ............................................................................................................................60

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Safety precautions
A Soluna BESS is designed and tested following relevant international safety
standards. As an electrical and electronic device, all applicable safety regulations
must apply during installation, operation, and maintenance. Incorrect use or misuse
may result in:
•Injury to the life and personal safety of the operator or other people.
•Damage to the system or other property belonging to the
operator/other people.
This chapter mainly reviews various warning symbols in the operation manual
and provides safety instructions for the installation, operation, maintenance and
use of the BESS.
Statement
Our company shall not be liable for any consequence caused by any of the
following events.
•Damage caused by transportation.
•The storage conditions do not meet the requirements specified in
the manual, resulting in damage.
•Incorrect storage, installation, and use.
•Unqualified personnel install and operate the system.
•Failure to comply with the operation instructions and safety
precautions in this manual.
•Operation in extreme environments which are not covered in this manual.
•Exceed the operation range of parameters specified in the
technical specification.
•Unauthorized disassembly, modification, or modification of the software code.
•Device damage caused by abnormal natural environment (force majeure,
such as lightning strikes, earthquakes, fires, storms, etc.)
•Warranty expiration.
•Installation or use in an environment which is not specified in the
relatedinternational standards

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Warning signs
Warning signs are used to warn you about the conditions that may cause severe
injury or damage to the device. They instruct you to exercise caution to prevent
danger. The following table describes the warning signs used in this manual.
Sign
Name
Description
Danger
Severe physical injury or even death may occur
if related requirements are not followed
Warning
Physical injury or damage to the devices may occur if
related requirements are not followed.
Electrostatic
discharge
Damage may occur if related requirements are
not followed
Hot sides
Sides of the device may become hot. Do not touch.
Note
Note
Steps to take for ensuring the proper running of the
device.

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Safety guide
After receiving this product, first, confirm the product package is intact.If any
question, contact the logistic company or local distributor immediately.
The installation and operation of the system must be carried out by
professional technicians. They have received professional training, and
thoroughly familiar with all the contents in this manual and the safety
requirements of the electrical system.
Do not carry out connection/disconnection, unpacking inspection and unit
replacement operations on the system when the power source is applied.
Before wiring and inspection, users must confirm the breakers on DC and
AC side of the inverter are disconnected and wait for at least5 mins
Ensure there is no substantial electromagnetic interference caused by other
electronic or electrical devices around the installation site.
Do not refit the system unless authorized.
All the electrical installation must conformto local and national electrical
standards.
Ground with proper technics before the operation
Do not open the surface cover of the system unless authorized. The
electronic components inside the system are electrostatic sensitive. Do take
proper anti-electrostatic measures during authorized operation.
Do not touch the housing of the system or the radiator to avoidscald as
they may become hot during operation
The system needs to be reliably grounded.
Ensure that DC and AC side circuit breakers have been disconnected and
wait at least 5 minutes before wiring and checking.
Note: Technical personnel who can perform installation, wiring, commissioning,
maintenance, troubleshooting and replacement of the energy storage inverters must
meet the following requirements:
•Operators need professional training and should wear the recommended PPE.
•Operators must read this manual thoroughly and understand the related
safety precautions.
•Operators need to be familiar with the relevant safety regulations for
electrical systems in the region of the installation.
•Operators need to be fully aware of the composition, operating principle of the
entire energy storage system, and related standards in the region of the installation.

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Transportation and installation
•Keep the package and unit complete, dry and clean during storage
and transportation.
•Please remove and install it with at least two people.
•To ensure the safe operation of the BESS and avoid personal
injury, please select proper handling and installation tools, and
take mechanical protection measures to PPE, such as wearing
steel toe capped shoes, overalls and so on.
•Only qualified electricians are allowed to install the system.
•Do not put and install the system on or close to flammableor
explosive materials.
•Do not install the system in a place where children and other people
can easily touch it.
•To avoid the risk of electric shock, please remove rings, bracelets,
and other metal jewellery on your hands before installation and
electrical connection.
•The solar cell modules exposed to the sunlight may generate a
dangerous voltage. Users must cover the cell modules with
sufficiently light shading materials before electrical connection.
•The input voltage of the system should not exceed the maximum
input voltage. Otherwise, damage may occur.
•The system is not suitable for the positive or negativegrounding
systems of solar cell modules.
•Ensure the proper grounding of the inverter.
•Ensure a reliable installation and electrical connection.

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Grid-tied operation
Maintenance and replacement
•Only qualified electricians are allowed to perform the maintenance,
inspection, and component replacement of the system.
•Please contact the distributor or manufacturer for support.
•To avoid irrelevant personnel from entering the maintenance area
during maintenance, temporary warning signs must be placed to warn
non-professionals not to enter. Use a fence for isolation.
•Before carrying out any maintenance operations, all input powerto
the system must be disconnected first, and wait for at least 5
minutes until the internal parts of the system have fullydischarged.
•Please follow the electrostatic protection norms, and take correct
protective measures because there are mostly electrostatic-
sensitive circuits and devices in the system.
•Do not use parts and components not provided by our company
during maintenance.
•Restart the system after eliminating the faults and problemswhich
may affect the safety and performance of the system.
•Do not get close to or touch any charged metal conductor parts of
the Grid or running system; otherwise, electric shock or fire may
occur. Please do not ignore the warning icons and instructions with
“electric shock”.
What to do at the battery end of life
•Do not dispose of the system together with household waste. The user
is responsible and obliged to send it to a designated organization for
recycling and disposal. Seek advice from Soluna Australia,
Note
•Only qualified electricians are allowed to operate the system under
the permission of local power departments.
•All electrical connections must meet the electrical standards of the
countries/regions where the installation is happening.
•Ensure a reliable installation and electrical connection beforeoperation.
•Do not open the cover when the system is working or any circuit is
connected to the system.

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Product Introduction
Soluna’s S4 EU-A36 can connect with a solar power generation system, assisting the
customer to use environmentally-friendly energy 24 hours per day. The BESS can
store the energy generated by the PV, using it when required, reducing electricity
bills, improving the household energy self-consumption and working when there is
a BLACKOUT. A Soluna BESS will provide the solution.
Features
•Intelligent power management
•Simple user controls, power data history analysis, and programming
•Touch-screen LCD interface
•Secure battery access door
•Height-adjustable threaded appliance-grade feet for stability and level
appearance
Application
•Self-use
•Peak Shaving
•Emergency power

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Outline Dimensions
Figure 2.1 outline dimension
Width
700
mm
Depth
340
mm
Height
1235
mm
Weight
145
kg

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Functional description
The basic principle of the Soluna S4 EU-A36
Figure2.2 Basic principle of the Soluna S4 EU

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Working modes
Soluna’s S4 EU-A36 has the working modes (see below):
Mode 1: In the daytime, the PV power will charge the battery as a priority, if
the battery is full, the PV power is used to power the loads, then
finally excess energy is sold to the Grid.
Mode 2: At night time, the battery power the loads, if the battery is not
sufficient, the Grid will supplement.
Mode 3: If there is a Grid failure or in an off-Grid region, the PV and battery
can power the loads together.
Mode 4: When the battery is low, and the PV power is unavailable, the Grid
can charge the battery, and at the same time, the Grid will also
power the loads.
Mode 5: A generator can charge the battery bank.
Mode 6: If the Time-of-Use function is enabled, it will ensure the remaining
battery power is used during peak times.
Mode 7: The UPS Function can ensure essential loads still powered should
the Grid fail unexpectedly.

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Active power and reactive power setting
The Soluna BESS is capable of producing reactive power and feeding it into grid through the
setting. Feeding in management can be controlled directly by the grid company through a
dedicated communication port.
Volt-Var Response Mode
The Soluna BESS series complies with AS/NZS 4777.2: 2015 standard which introduced the
voltage-var response mode to restrict the power output of the inverter in response to the
voltage at its terminals (refer to AS/NZS 4777.2: 2015).
This mode is not enabled by default and when activated, it will sink reactive power in
response to an increasing voltage (inductive) and supply reactive power in response to a
decrease in voltage (capacitive). The voltage at which the inverter should sink/supply a
reactive power at a given % of the VA rating of the inverter can be adjusted, the default
values are given in the table below.
ALWAYS CHECK THE AS4777.2: 2015 SETTINGS WITH THE LOCAL GRID
OPERATOR
Adjusting Volt-Var mode settings
Click Q(V) icon and set V1~V4, Q1~Q4 to comply with the local Grid.
Parameters
Explanation
Default
(Reference value: Vac)
V1
Grid voltage
207
V2
Grid voltage
220
V3
Grid voltage
250
V4
Grid voltage
265
Parameters
Explanation
Default
(Reference value)
Q1
Var % rated VA
0.3
Q2
Var % rated VA
0
Q3
Var % rated VA
0
Q4
Var % rated VA
-0.3

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Volt-Watt Response Mode
The Soluna BESS series complies with AS/NZS 4777.2: 2015 standard. The grid voltage at
which the inverter output starts to drop/de-rate is set to 250 V by default as required by the
standard. This means that when the grid voltage exceeds 250 V, the maximum output of the
inverters will be restricted (as required by the standard). The maximum output decreases by
approximately 5 % for every volt beyond 250 V, down to 20% of the nominal output when
the voltage reaches 265 V. For example, if setting Vstart=250V and Vstop=265V. When the
grid voltage reaches 250V and gradually increases to 265V, the inverter output power will
gradually decrease. When the voltage reaches to 265V, its output power will decrease to
20% of Pstart.
This mode is not enabled by default and will reduce the output power of the inverter in
response to an increasing voltage at the AC terminals of the inverter. The voltage that the
inverter produces a given % of the VA rating of the inverter can be adjusted via the LCD on
the front of the Soluna system.
Adjusting Volt-Watt mode settings
Click VW icon and set Vstart and Vstop to comply with the local Grid.
AS4777.2
Voltage reference
Soluna system
Voltage reference
AS4777.2
Power reference
Soluna system
Power reference
AS4777.2
(default value)
V1
-
P/Prate%@V1
-
100%
V2
-
P/Prate%@V2
-
100%
V3
Vstart voltage (V)
P/Prate%@V3
Vstart Power
100%
V4
Vstop voltage (V)
P/Prate%@V4
Vstop Power
20%

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Remark:
User can find the QV & VM icon in reset & advanced setting icon on the LCD),
Please find the following picture for details.
DRMs, logic interface for AS/NZS 4777.2:2015, is used to receive and response commands
from grid company and then adjust inverter output power.
The Earth fault alarm
Before the inverter starts to connect to the grid, the inverter will first detect the impedance
of PV + to ground, and the impedance of PV- to ground. If any of these impedance values is
less than 33 kΩ, the inverter will not connect to the grid and will report an error (DC
Insulation Impedance Fault) on its LCD.

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Technical Data
Technical data of System
PV input
Max. recommended DC power （W）
3600
Max. DC voltage （V）
500V
Isc PV (absolute Max.) (A)
16A
Number of MPPT trackers
1
Strings per MPPT tracker
1/1
Nominal DC operating voltage （V）
360
Max. input current （A）
11A
MPPT voltage range （V）
125-425
Vdc range @ full power (Vdc)
330-425
AC Input & AC Output
Normal Voltage (VAC)
230,Single phase(L/N/PE)
Frequency (Hz)
50
Max. AC output current (A)
18A
Max. AC input current (A)
18A
Max. continuous Power (kW)
3.6kW
Power factor range
-0.8～+0.8
Off-Grid AC Output
Normal Voltage (VAC)
230,Single phase(L/N/PE)
Frequency (Hz)
50Hz
Max. AC output current (A)
18A
Max. continuous Power (kW)
3.6kW
Power factor range
-0.8～+0.8
Inverter Efficiency
Max.Efficiency
97.60%
Euro.Efficiency
96.50%
MPPT.Efficiency
99.90%
Battery data
Battery Type
LFP
Module number
1
Nominal Storage capacity (kWh)
3.84
Usable Storage Capacity (kWh)
3.07
Battery capacity (Ah)
75
Normal voltage (V)
51.2
Voltage range (V)
42-58
Max. charge current (A)
50
Max. discharge current (A)
50
DOD
80%
Cycle life
6000

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Regular parameters
Protective class
Class I
Overvoltage category
OVC II(PV) , OVCIII(AC main Grid)
Dimension (mm)
W*D*H=750*340*1235
Weight (kg)
145
Display
7'' graphic LCD
Communication
WIFI, CAN
Operating temperature range (°C)
-10～+40
Storage stability range (°C)
-20～+60
Relative humidity
0~95%
Altitude (m)
<2000
Cooling methods
Forced airflow
Ingress protection
IP20
Condition
Indoor conditioned
Certificates
IEC62109
CE-LVD EN 62477-1: 2012+ALL: 2014
Warranty
Please refer to SOLUNA WARRANTY CONDITIONS
Technical Data of the battery module
Physical Characteristics
Width
205 mm
Depth
678 mm
Height
436 mm
Weight
60 kg
Electrical Characteristics
Battery type
LFP
Total Energy Capacity
3.84 kWh
Usable Energy Capacity
3.07 kWh
Battery Capacity
75 Ah
Voltage Range
40~58.4 V
Nominal Voltage
51.2 V
Charge / Discharge current (Nominal)
19A / 38A
Max. Charge / Discharge Current
50A / 50 A
Max. Charge / Discharge Power
2.5 kW
DOD
80%
Internal resistance
≤60 mΩ
Cycle life
≥6000
Battery Pack Round-Trip Efficiency
>95%
DC Disconnect
Contactor Fuse
BMS
Power consumption
<3W (work),
<100mW (sleep)

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Monitoring parameters
System Voltage
System Current
Cell Voltage
Cell temperature
Communication
CAN
System Configuration
Module parallel
1~4 Parallel
Operating Conditions
Installation Location
Indoor
Operating Temperature
-10~45 ℃
Operating Temperature (Recommended)
15~30 ℃
Storage Temperature
-30~60 ℃
Humidity
5%~95%
Altitude
Max. 2,000 m
Cooling Strategy
Natural Convection
Reliability & Certification
Certificates
Cell: UL1642
Battery Module：IEC62619 / UL1973
Hazardous Materials Classification
Class 9
Transportation
UN38.3
Ingress Rating
IP20
Warranty
Please refer to SOLUNA WARRANTY CONDITIONS

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Appearance
Figure 2.3 Appearance
Number
Name
Remark
①
Soluna brand
②
LCD panel
①
②

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Figure 2.4 Appearance
Number
Name
Remark
1
FAN outlet
2
FAN outlet
3
Emergency Stop
4
Handle
5
Incoming wire port
6
Label