AXITEC AXIstorage Li SV2 User manual

AXITEC Energy GmbH & Co. KG, Otto-Lilienthal-Str. 5, 71034 Böblingen, Germany, [phone], www.axitecsolar.com
Installation Instruction
AXIstorage Li SV2

This manual introduces the AXIstorage Li SV2 from Axitec. The AXIstorage Li SV2 is a high voltage
Lithium-Ion Phosphate Battery storage system. Please read this manual before you install the
battery and follow the instructions carefully during the installation process. If there is any confusion,
please contact Axitec immediately for advice and clarification.
Content
1. SAFETY ................................................................................................................................................ 1
1.1 Symbol explanation..........................................................................................................2
1.2 Before Connecting..............................................................................................................5
1.3 While Using .............................................................................................................................5
2. SYSTEM INTRODUCTION .................................................................................................................... 6
2.1 Product Introduction...........................................................................................................6
2.2 Specifications........................................................................................................................7
2.2.1 System parameter ............................................................................................................7
2.2.2 Battery Module (Energypack SV2)...............................................................................8
2.2.3 Control Module BMS SV2 (internal power supply)...................................................9
2.3 System Diagram .................................................................................................................12
3. INSTALLATION .................................................................................................................................. 13
3.1 Required Tools.....................................................................................................................13
3.2 Safety Gear..........................................................................................................................13
3.3 System Working Environment Checking......................................................................14
3.3.1 Cleaning............................................................................................................................14
3.3.2 Ventilation.........................................................................................................................14
3.3.3 Fire-extinguisher System ................................................................................................14
3.3.4 Grounding System ..........................................................................................................14
3.3.5 Clearance.........................................................................................................................14
3.4 Handling and placement................................................................................................14
3.4.1 Handling and placement of the battery modules ...............................................14
3.4.2 Handling and placement of the base .....................................................................15
3.4.3 Selection of installation sites ........................................................................................15
3.4.4 Packing list ........................................................................................................................15
3.4.5 Mounting and installation of the base......................................................................16
3.4.6 Battery Modules and Control Module (BMS) pile up............................................17
3.4.7 Installation of the metal mounting rails.....................................................................18
3.4.8 Locking of the control Module’s fix screw on left and right side.......................20
3.5 Cables connection............................................................................................................20
3.5.1 Grounding.........................................................................................................................21
3.5.2 Cables................................................................................................................................22
3.6 Connection to Inverter.....................................................................................................23
3.7 Switching on the System ..................................................................................................24
3.8 Switching the System off ..................................................................................................25
3.9 Online Monitoring...............................................................................................................26

4. SYSTEM DEBUG ................................................................................................................................ 27
5. MAINTENANCE ................................................................................................................................ 28
5.1 Trouble Shooting:................................................................................................................28
5.2 Replacement of main components.............................................................................29
5.2.1 Replacement of Battery Module ...............................................................................29
5.2.2 Replacement of Control Module (BMS)...................................................................31
5.3 Battery Maintenance........................................................................................................32
6. REMARKS.......................................................................................................................................... 33
7. SHIPMENT ......................................................................................................................................... 33
ANNEX 1: INSTALLATION AND SYSTEM TURN ON PROGRESS LIST .......................................................... 34
ANNEX 2: SYSTEM TURN OFF PROGRESS LIST ........................................................................................... 35

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1. Safety
The AXIstorage Li SV2 is a high voltage DC system, operated by skilled/qualified personnel only.
Read all safety instructions carefully prior to any work and observe them at all times when working
with the system.
Incorrect operation or work may cause:
➢injury or death to the operator or a third party;
➢damage to the system hardware and other properties belonging to the operator or a third
party.
Skills of Qualified Personnel
Qualified personnel must have the following skills:
⚫training in the installation and commissioning of the electrical system, as well as for dealing
with hazards;
⚫knowledge of this manual and other related documents;
⚫knowledge of the local regulations and directives.

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1.1 Symbol explanation
Danger
Lethal voltage!
⚫Battery strings will produce HIGH DC power and can cause a
lethal voltage and an electric shock.
⚫Only a qualified person can perform the wiring of the battery
strings.
Warning
Risk of battery system damage or personal injury
⚫DO not pull out the connectors while the system is working!
⚫De-energize from all power sources and verify that there is no
voltage.
Caution
Risk of battery system failure or life cycle reduction.
Symbol in
label
Read the product and operation manual before operating the
battery system!
Symbol
in label
General warning
Symbol
in label
Warning electric shock!
Symbol
in label
Warning against flammable substances
Symbol
in label
Do not reverse connect the positive and negative potential.

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Symbol
in label
Do not place near open flame
Symbol
in label
Do not place in an area accessible for children and pets.
Symbol
in label
Recycle label.
Symbol
in label
Label for Waste Electrical and Electronic Equipment (WEEE)
Directive (2012/19/EU)
Symbol
in label
Symbol of CE-conformity
Symbol
in label
The certificate label for Safety by TÜV SÜD.
Symbol
in label
The certificate label for Safety by TÜV Rheinland.
Symbol
in label
The certificate label for Safety by TÜV Rheinland.

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Danger: Batteries deliver electric power, resulting in burns or fire hazard when they are short
circuited, or wrongly installed.
Danger: Lethal voltages are present at the battery terminals and cables. Severe injuries or death
may occur if the cables and terminals are touched.
Warning: DO NOT open or deform the battery module, otherwise the product will be out of
warranty scope
Warning: Whenever working on the battery, wear suitable personal protective equipment (PPE)
such as rubber gloves, rubber boots and goggles.
Warning: The AXIstorage Li SV2 system’s working temperature range: 0℃～50℃; Optimum
temperature: 18℃～28℃.Conditions out of the working temperature range may cause
the battery system over / low temperature alarm or protection which further leads to a
cycle life reduction as well as it will affect the warranty terms.
Warning: For battery installation, the installer shall refer to NFPA70 or similar local installation
standard for operation.
Caution: Improper settings or maintenance can permanently damage the battery.
Caution: Incorrect inverter parameters will lead to a further faulty/damaged battery.
Reminding
1) It is very important and necessary to read the user manual carefully before installing or
using the battery. Not doing so or not to follow any of the instructions or warnings in this
document can result in electrical shock, serious injury, or death, or can damage the
battery, potentially rendering it inoperable.
2) If the battery is stored for a long time, it is required to charge them every six months, and
the SOC should be no less than 90%;
3) Batteries need to be recharged within 12 hours, after full discharge;
4) Do not expose cable outside;

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1.2 Before Connecting
1) After unpacking, please check the product and packing list first. If a product is damaged
or if there is a lack of parts, please contact the local retailer;
2) Before installation, be sure to cut off the grid power and make sure the battery is in the
switched-off mode;
3) Wiring must be correct, do not mistake the positive and negative cables, and ensure there
is no short circuit with the external device;
4) It is prohibited to connect the battery to AC power directly;
5) The Battery system must be well grounded, and the resistance must be less than 100mΩ;
6) Please ensured the electrical parameters of the battery system are compatible to the
related equipment;
7) Keep the battery away from water and fire.
1.3 While Using
1) If the battery system needs to be moved or repaired, the power must be cut off and the
battery is completely shut down;
2) It is prohibited to connect the battery with a different type of battery.
3) It is prohibited to use the batteries with a faulty or incompatible inverter;
4) It is prohibited to disassemble the battery (QC tab removed or damaged);
5) In case of fire, only dry powder fire extinguisher can be used, liquid fire extinguishers are
prohibited;

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2. System Introduction
2.1 Product Introduction
The AXIstorage Li SV2 is a high voltage battery storage system based on lithium iron phosphate
batteries, which is a new energy storage product of Axitec. It can be used to provide reliable
power for various types of equipment and systems. AXIstorage Li SV2 is especially suitable for those
application which require high power output, limited installation space, restricted load-bearing
and long cycle life.

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2.2 Specifications
2.2.1 System parameter
Product Type
AXIstorage Li SV2
Cell Technology
Li-iron (LFP)
Battery System Capacity(kWh)
7.10
10.65
14.20
Battery System Voltage(Vdc)
192
288
384
Battery System Capacity(AH)
37Ah
Battery Controller Name
BMS SV2
Battery Module Name
Energypack SV2
Battery Module Quantity(pcs)
2
3
4
Battery Module Capacity(kWh)
3.552
Battery Module Voltage(Vdc)
96
Battery Module Capacity(AH)
37
Battery System Charge Upper Voltage(Vdc)
216
324
432
Battery System Charge Current(Amps, Standard)
7.4
Battery System Charge Current(Amps, Normal)
18.5
Battery System Charge Current(Amps, Max.@15s)
40
Battery System Discharge Lower Voltage(Vdc)
174
261
348
Battery System Discharge Current(Amps, Standard)
7.4
Battery System Discharge Current(Amps, Normal)
18.5
Battery System Discharge Current(Amps, Max.@15s)
40
Short circuit rating(Amps)
＜4000
Efficiency(%)
96
Depth of Discharge(%)
90
Dimension(W*D*H, mm)
450*296*822
450*296*1118
450*296*1414
Communication
CANBUS/Modbus RTU
Protection Class
IP55
Weight(kg)
82
117
152
Operation Temperature(℃)
0~50℃
Storage Temperature(℃)
-20~60℃
Altitude(m)
<2000
Humidity
5~95%
Product Certificate
VDE2510-50, IEC62619, IEC62477-1,
IEC62040-1, CEC, CE
Transfer Certificate
UN38.3
1）Battery Controller Dimensions(W*D*H)
2）Battery Module Dimensions (W*D*H)
3）Battery bottom base Dimensions(W*D*H)
450×296×190 mm
450×296×296mm
450×296×40 mm

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2.2.2 Battery Module (Energypack SV2)
Product Type
Energypack SV2
Cell Technology
Li-ion (LFP)
Battery Module Capacity (kWh)
3.552
Battery Module Voltage (Vdc)
96
Battery Module Capacity (Ah)
37
Battery Module Serial Cell Quantity (pcs)
30
Battery Cell Voltage (Vdc)
3.2
Battery Cell Capacity (AH)
37
Dimension (W*D*H, mm)
450*296*296
Weight (kg)
35
Operation Temperature
0~50℃
Storage Temperature
-20~60℃
Transfer Certificate
UN38.3

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2.2.3 Control Module BMS SV2 (internal power supply)
Control Module (BMS SV2) Display Panel
LED Button
Short Press
activates the LED panel for 20sec.
Long Press
(more than
5sec)
When status LED is fast flashing blue ●, release the button,
then the baud rate of RS485 is 115200.
When status LED is fast flashing orange ●, release the button,
then the baud rate of RS485 is 9600.
Status
2 colors, blue and orange
Refer to [LED Indicators Instructions]

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Battery Module Status
Blue solid
Normal
Orange solid
Individual module alarm or
protection. See trouble shooting steps
in section 5.1
System Capacity
System SOC
Each LED indicates 25%SOC
LED Indicators Instructions
Condition
Note
Self-checking
Blue, Flashing
All flashing
Self-checking
failure
Orange,
slow flashing
Off
Battery Module
Status off. See
trouble shooting
steps in section
5.1
Black start success
Blue, fast flashing
Off
Black start failure
Orange,
fast flashing
Off
See trouble
shooting steps in
section 5.1
Communication
Lost or BMS error
Orange, solid
Indicate SOC, blue, solid
See trouble
shooting steps in
section 5.1
Idle
Blue, slow flashing
Indicate SOC, blue, solid
Charge
Blue, solid
Indicate SOC, blue, solid
Floating charge
Blue, solid
All flashing, horse race lamp
Discharge
Blue, flashing
Indicate SOC, blue, solid
System sleep
Blue, flashing
Off
Battery module
status off
Remark: Slow flashing: 2.0s ON/1.0s OFF; Flashing 0.5s ON/0.5s OFF; Fast flashing: 0.1s ON/0.1s
OFF
Control Module (BMS SV2) Cable Panel

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Power Switch
ON: main breaker ON, it is now possible to turn on the battery system by start button.
OFF: system turns off completely, no power output.
Caution: When the breaker is tripped off because of over current or short circuit, wait at least
30min before turning on again, otherwise it may cause damage to the breaker.
Start
Start function: press more than 5sec until the buzzer rings, to turn on the controller.
Black start function: when the system is switched on, and the relay is OFF, press more than 10sec,
and the relay will turn on for 10 min without communication (depending on conditions).
WiFi
Wireless maximum output power: 20dBm
Operating frequency: 2412-2472MHz
Gain of antenna: Max 3dBi
Modulation system：
DBPSK/DQPSK/CCK(DSSS)
BPSK/QPSK/16QAM/64QAM(OFDM)
Modulating Repetition：
1Mbps/2Mbps/5.5Mbps/11Mbps(DSSS)
6Mbps/9 Mbps/12 Mbps/18 Mbps/24 Mbps/36 Mbps/48 Mbps/54 Mbps(OFDM)
MCS0~MCS7(802.1 1n 20MHz)

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Channel spacing:5MHZ
Type of antenna: 2.4G IPEX-SMA Antenna
Power Terminal (+/-)
For connecting the power cables between battery system and Inverter.
Communication Terminal (RS485 / CAN / RS232)
RS485 Communication Terminal: (RJ45 port) follow MODBUS 485 protocol, for communication
between battery system and inverter.
CAN Communication Terminal: (RJ45 port) follow CAN protocol, for communication between
battery system and inverter.
RS232 Communication Terminal: (RJ45 port) for manufacturer or professional engineer for
debugging or service.
Definition of RJ45 Port Pin
No.
CAN
RS485
RS232
1
---
---
---
2
GND
---
---
3
---
---
TX
4
CANH
---
---
5
CANL
---
---
6
---
---
RX
7
---
RS485A
---
8
---
RS485B
---
2.3 System Diagram

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3. Installation
3.1 Required Tools
The following tools are required to install the battery pack:
Wire Cutter
Crimping Modular Plier
Cable Ties
Screwdriver Set
Electric Screwdriver
Adjustable Wrench
Sleeve Piece
600VDC Multimeter
NOTE
Use properly insulated tools to prevent accidental electric shocks or short circuits.
If insulated tools are not available, cover the entire exposed metal surfaces, except their tips, with
available insulated alternatives (insulating tape).
3.2 Safety Gear
It is recommended to wear the following safety gear when dealing with the battery pack
Insulated gloves Safety goggles Safety shoes

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3.3 System Working Environment Checking
3.3.1 Cleaning
Before installing and switching system power on, dust and iron scurf must be removed to keep a
clean environment.
The system cannot be installed in a desert area without an enclosure to protect it from sand.
Danger: Each Battery module has active DC power at its terminal all the time, be careful when
handling the modules.
3.3.2 Ventilation
AXIstorage Li SV2 system’s working temperature range: 0℃～50℃; Optimum temperature: 18℃～
28℃.
There are no mandatory ventilation requirements for the battery modules, but please avoid
installations in confined area. The aeration shall avoid high salinity, humidity or temperature.
Caution: The AXIstorage Li SV2 system has IP55 protection. But please avoid frost or direct sunlight.
Conditions out of the working temperature range will cause the battery systems over / low
temperature alarm or protection trigger which further leads to cycle life reduction. If it is necessary
due to the environment, a cooling system or heating system should be installed.
3.3.3 Fire-extinguisher System
It must be equipped with fire-extinguisher system for safety purpose.
The fire-extinguisher system needs to be regularly checked to be in normal condition. Refer to the
using and maintenance requirements and please follow the local fire equipment guidance.
3.3.4 Grounding System
Before installing the battery make sure the grounding point of the basement is stable and reliable.
If the battery system is installed in an independent equipment cabin (e.g. container), make sure
the grounding of the cabin is stable and reliable.
The resistance of the grounding system must be ≤100mΩ
3.3.5 Clearance
Minimum distance to heat sources is more than 2 meters. The minimum distance to another
battery module(rack) is more than 0.5 meters.
3.4 Handling and placement
Warning: The battery pile’s power terminals are under high voltage DC. It must be installed in a
restricted access area;
Warning: AXIstorage Li SV2 is a high voltage DC system, operated by qualified and authorized
personnel only.
3.4.1 Handling and placement of the battery modules
A single battery module weights 36kg. Without handling tools, it must be handled by at least 2
persons.

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3.4.2 Handling and placement of the base
The base is light, a single person can handle it.
3.4.3 Selection of installation sites
A. The AXIstorage Li SV2 system’s working temperature range is 0℃～50℃; Optimum temperature:
18℃～28℃. Do not place the battery system in direct sunlight. It is suggested to build sunshade
equipment. In cold area a heating system is required.
B. The AXIstorage Li SV2 system must not be immersed in water. The battery base cannot be
placed in rain or other water sources. As a suggestion, the base’s height shall be >300mm above
the ground.
C. The basement must bear the weight of whole battery system (130~300kg).
D. The AXIstorage Li SV2 system must be installed on fixed ground.
3.4.4 Packing list
BMS SV2 Battery Controller
Item
Description
Set
1
BMS SV2 Battery Controller
1
2
AXIstorage Li SV2 basement (450*296*40, mm)
1
3
EPE foam
3
4
3.5m black external communication cable (RJ45 –M19)
2
5
3.5m DC+ red external power cable (10AWG)
1
6
3.5m DC- black external power cable (10AWG)
1

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7
1m yellow-green grounding cable (10AWG)
1
8
M4 screws for fixing mounting rails
14
9
M8 bolts for fixing basement
4
10
660 mm mounting rail
For up to 2 battery modules installation
2
11
622 mm mounting rail
In combined use with the 660mm mounting rail for up to 4 modules installation;
see installation pictures below;
2
Energypack SV2 Battery Module
1
Energypack SV2 battery module
1
2
EPE foam
2
No additional kits needed for AXIstorage Li SV2 installation.
3.4.5 Mounting and installation of the base
The base must be fixed installed on the basement with 4pcs M8×80 foundation bolts.
Battery rack basement holes bitmap (unit: mm):

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3.4.6 Battery Modules and Control Module (BMS) pile up
Handle the modules above the red marked edgings on both sides.
Caution: If hands are under this red marked side, hands will get hurt.
Danger: when the battery is connected together with the base, the internal sockets still have
high voltage DC power from serial connected battery modules (battery module can’t be turned
off).