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Instruction Manual
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Varta element 3, element 6 Instruction Manual

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INSTRUCTION MANUAL
VARTA element 3 / VARTA element 6
VARTA Storage GmbH
Congratulations!
You have chosen a storage system from VARTA Storage GmbH! We are pleased that in doing so, you chose a durable system for which we considered quality paramount. Please read through these instructions carefully. They describe how to operate and use the battery.
Have fun storing power!
Guidance for the qualified electrician
The first part of this manual contains general information on how to use the VARTA element 3 / element 6 energy storage systems. Further information can be found in the “Installation”, “Operation in the password-protected area” and “Maintenance” sections.
Subject to alteration! Updated 11/2015 3
Legal notice
Translation of the original instruction manual VATRA element 3/6 VARTA Storage GmbH
Emil-Eigner-Str. 1 86720 Nördlingen Germany
www.varta-storage.de
Tel.: +49 9081 240 86 60 info@varta-storage.com
Technical Service:
technical.service@varta-storage.com Tel.: +49 9081 240 86 44
Updated: 10/2015 Document number: OM_850_850_GB
Contents
General ...................................................................................11
1 Information about this manual.........................................11
1.1 Explanation of symbols ............................................... 11
1.2 Pictograms .................................................................. 12
2 Safety ..............................................................................13
2.1 General information on safety ..................................... 13
2.2 Proper use .................................................................. 14
2.3 Requirements regarding qualified electricians ............ 15
2.4 General hazards ......................................................... 15
2.5 Safety equipment ........................................................ 17
3 Function, scope of supply and technical parameters .....18
3.1 Function ...................................................................... 18
3.2 Scope of supply .......................................................... 19
3.3 System overview ......................................................... 21
3.4 Type plates ................................................................. 22
3.5 Technical parameters ................................................. 23
3.6 Warranty ..................................................................... 24
4 LED displays and control element ..................................25
4.1 Switching on and off ................................................... 25
4.2 LED ring indicators...................................................... 26
4.3 Web interface .............................................................. 27
4.3.1 Access to the web interface ....................................27
4.3.2 Information on the welcome page (Home) ..............28
4.3.3 Ext. relay (optional) .................................................29
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4.3.4 Portal (optional) ....................................................... 29
5 Instructions for maintenance and Cleaning .................... 31
5.1 Maintenance work ....................................................... 31
5.2 Cleaning ...................................................................... 32
5.3 Instructions for disassembly and disposal ................... 32
6 Malfunction/Damage event ............................................. 33
6.1 Malfunction indicators .................................................. 33
6.1.1 Malfunction indicators of the LED ring .................... 33
6.1.2 Malfunction indicators on the web interface ........... 33
6.2 What to do in case of damage ..................................... 34
Installation ................................................................................... 35
7 Transport and storage .................................................... 35
7.1 Transport ..................................................................... 35
7.2 Packing/transport check .............................................. 37
7.3 Storage ........................................................................ 39
8 Assembly and installation ............................................... 40
8.1 Requirements for the installation location ................... 40
8.1.1 Installation location ................................................. 41
8.1.2 Installation location and the surrounding area ........ 42
8.2 Warranty ...................................................................... 43
8.3 Preparing the electrical connection ............................. 45
8.3.1 Connections at the distributor ................................. 46
8.3.2 Preparation of the AC port for the building grid ...... 47
8.3.3 Current sensor ........................................................ 49
8.4 Preparing for assembly ............................................... 50
8.5 Installing and electrical connection of the cabinet ....... 51
8.6 Assembling the battery modules ................................. 54
8.6.1 Opening the cabinet ................................................55
8.6.2 Checking the battery modules .................................56
8.6.3 Removing and connecting battery modules ............57
8.6.4 Closing storage cabinet ...........................................64
8.7 Commissioning ........................................................... 64
8.7.1 Switching on ............................................................64
8.7.2 Password entry ........................................................66
8.7.3 Enter device name and serial number of the battery
modules ...................................................................67
8.7.4 Portal connection .....................................................70
8.7.5 Country code NA Protection ....................................71
8.7.6 Checks on the welcome page of the web interface 72
8.7.7 Checking the connections .......................................73
8.7.8 Reboot .....................................................................74
8.7.9 Checks after the reboot ...........................................74
8.7.10 Exiting the password-protected area .......................76
Operation (password-protected area) ..........................................77
9 The password-protected area .........................................77
9.1 Entering the Password ................................................ 77
9.2 System ........................................................................ 78
9.3 Version ........................................................................ 79
9.4 Settings ....................................................................... 79
9.4.1 Basic settings ..........................................................80
9.4.2 Network ...................................................................81
9.4.3 Service settings .......................................................82
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9.4.4 Grid parameters NA protection ............................... 83
9.4.5 Logging out ............................................................. 85
Maintenance ................................................................................ 86
10 Maintenance basics ........................................................ 86
10.1 Safety instructions ....................................................... 86
10.2 Scope of maintenance ................................................. 87
11 Service and repair work .................................................. 88
11.1 Checking the storage cabinet from outside ................. 88
11.1.1 Checking the storage cabinet from outside ............ 88
11.2 Checking the system parameters ................................ 89
11.2.1 Checking the online status (Service) ...................... 89
11.2.2 Error history (Service) ............................................. 89
11.2.3 Checking the software version (Service) ................ 90
11.2.4 Software update (Service) ...................................... 91
11.2.5 Air filter change: Resetting the time (Service) ........ 91
11.2.6 Checking the fan (Service) ..................................... 92
11.2.7 Checking the current sensor values ....................... 93
11.2.8 Checking the battery chargers ................................ 94
11.2.9 Checking the battery modules ................................ 94
11.2.10 Discharging the battery modules ............................ 95
11.3 Service and repair: cabinet interior.............................. 96
11.3.1 Opening the cabinet ................................................ 97
11.3.2 Remove battery inverter.......................................... 97
11.3.3 Removing and installing the battery charger .......... 98
11.3.4 Removing and installing battery modules ............. 100
11.3.5 Replacing/cleaning the air filter ............................. 102
11.3.6 Disassembling the storage cabinet cover .............103
11.3.7 Replacing/cleaning the fan ....................................104
11.4 Completion of service and repair work ..................... 106
11.4.1 Checking operating state ......................................106
11.5 Cleaning .................................................................... 107
12 Malfunctions ..................................................................108
12.1 Malfunction displays of the LED ring ........................ 108
12.2 Malfunction indicators on the web interface ............. 108
13 Disassembly and disposal ............................................109
13.1 Disassembly .............................................................. 109
13.2 Disposal .................................................................... 110
Figures .................................................................................. 111
Tables .................................................................................. 112
Attachment ............................................................................. 112
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About this manual
Read this manual carefully to ensure the VARTA element 3 and VARTA element 6 energy storage systems (VATRA element 3/6) operate correctly. Installation and maintenance activities must be performed by a qualified electrician certified by VARTA Storage GmbH. The instruction manual should be kept in close proximity to the VATRA element 3/6 and must be permanently available to all individuals involved in working on the storage battery.
Scope
This instruction manual applies for VATRA element 3/6 products from VARTA Storage GmbH.
Disclaimer
VARTA Storage GmbH accepts no liability whatsoever for personal injury, property damage, damage sustained by the product, or consequential damage that occurs or has occurred on the product due to failure to comply with these instructions, improper use of the product, or by repairs, opening of the storage cabinet and any other actions carried out by unqualified electricians not certified by VARTA Storage GmbH. This disclaimer also applies for the use of non-approved spare parts and failure to comply with the specified maintenance intervals.
The product must not be rebuilt or technically modified without authorisation.
© VARTA Storage GmbH 2015
Special attention required
NOTICE!
Property damage from deep discharge of the
battery modules!
The energy storage system may be switched off only for maintenance purposes.
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General
1 Information about this manual
1.1 Explanation of symbols
This instruction manual uses the following types of safety instructions and tips:
DANGER!
Indicates an instruction which, if not followed, will immediately lead to death or serious injuries.
WARNING!
Indicates an instruction which, if not followed, can lead to death or serious injuries.
CAUTION!
Indicates an instruction which, if not followed, can lead to minor or slight injuries.
NOTICE!
Indicates an instruction which, if not followed, can lead to property damage.
Indicates useful hints for handling VATRA element 3/6.
Table 1: Explanation of symbols
1.2 Pictograms
Warning about general hazards!
Warning about electrical voltage!
Warning about electric shock!
Warning about flammable substances!
Warning about battery hazard!
Warning about failure to observe discharge time: 3 min!
Table 2: Pictograms
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2 Safety
2.1 General information on safety
WARNING!
Potential mortal danger through failure to observe the safety instructions!
Improper use can cause fatal injury. Therefore: Make sure that all safety devices are
in working order before use!
The information contained in this manual is to be observed by all individuals during operation, installation and maintenance. These instructions are unable to describe every conceivable situation. Therefore, the applicable standards and the relevant regulations for occupational health and safety shall govern.
Moreover, installation and maintenance work involves residual risks under the following circumstances:
Installation and maintenance work is not performed
correctly.
Installation and maintenance work is performed by
personnel who have not been trained and not been instructed.
The safety instructions given in these instructions are not
observed.
All persons assigned to work on the system must have read and understood these instructions, in particular the chapter on Safety.
All safety instructions must be strictly obeyed, compliance therewith ensures your safety. The device must not be modified.
2.2 Proper use
WARNING!
Potential mortal danger through improper use!
The device accommodates parts carrying hazardous voltages. Contact with these parts can be fatal.
Using the energy storage system or the individual components thereof for any use other than that intended can lead to life-threatening situations.
VATRA element 3/6 and its components are built using state-of­the-art technology and to product-specific standards and is to be used for storing electricity from generation plants of renewable energy, such as photovoltaic systems or other energy sources such as CHP. Alternative uses must be agreed in consultation with the manufacturer and the local energy supplier.
Essentially, VATRA element 3/6 must not be used:
for mobile use on land, water or in the air  for using medical equipment
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2.3 Requirements regarding qualified electricians
WARNING!
Potential mortal danger if the electrician lacks the proper training!
Make sure that all activities on the VATRA element 3/6 system (e.g. installation, service and maintenance work) are carried out by qualified electricians certified by VARTA Storage GmbH!
The “Installation”, “Operation in the password-protected area” and
“Maintenance” sections contain further information for qualified
electricians.
2.4 General hazards
NOTICE!
Property damage due to incorrect handling!
Failure to obey the following instructions on handling the device can cause damage to the device for which VARTA Storage GmbH accepts no liability.
Do not place any objects on or in front of the cabinet!  Avoid direct heat impact from other devices!  Avoid air humidity of over 80 %!  Do not store corrosive substances at the installation
location!
In order to protect the cells from deep discharge, the
device must be switched off only for maintenance and service purposes!
Never clean the device wet or using chemical agents!  Use only accessories and spare parts recommended by
the manufacturer!
Bear in mind that work on electrical systems and
operating equipment must be carried out by qualified electricians certified by VARTA Storage GmbH in compliance with the electrical regulations.
Work on electrical systems and operating equipment
must be carried out in the de-energised state!
Watch out for damage to electrical equipment! Rectify
defects without delay!
Always keep the cabinet locked! Access by authorised
personnel only!
Respect the waiting times!
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2.5 Safety equipment
WARNING!
Faulty safety equipment can cause accidents!
The safety equipment must not be damaged, modified, removed or shut down.
On completion of installation and commissioning, the safety devices must be tested by qualified electricians certified by VARTA Storage GmbH to confirm faultless function.
The VATRA element 3/6 system features multiple safety devices, including a NA-protected activation point in accordance with VDE­AR-N 4105, closed electrical operating area, over temperature cut-out and a door contact switch. This switches off the system if an attempt is made to open the storage cabinet before it has been de-energised.
We also recommend installing a smoke detector in the VATRA element 3/6 system installation room.
3 Function, scope of supply and technical
parameters
3.1 Function
The VARTA element 3 / element 6 system is a battery storage system for operation in a 3-phase building grid, which offers the option of connecting a separate grid-connected photovoltaic system. This must be a generating unit which supplies to surplus rather than to full feed. There is also provision for storing renewable energy, for example from small wind turbines or other CHP system energy sources.
The VATRA element 3/6 system increases the rate of own consumption and the economy of the photovoltaic system. Any power produced by the photovoltaic system that is not required for immediate use can be buffered in the energy storage system. The storage system feeds the power back to the building system as soon as consumption once again exceeds the amount of power generated by the photovoltaic system.
The VATRA element 3/6 system is connected to the building system as an alternating, 3-phase current, and operates independently of the photovoltaic system. A current sensor controls the charge and discharge processes of the energy storage system. This current sensor is mounted in the fuse box immediately behind the consumption/feed meter and measures all incoming and outgoing currents.
If this current sensor measures outgoing currents when the energy storage system has free charge capacity, the system will be charged. During this process, the battery inverter located in the VARTA element 3 / element 6 system converts the alternating current into direct current, and charges the battery modules. Once the maximum charge capacity is reached or when the solar-
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generated current exceeds the maximum charge current, the surplus solar current is fed into the public grid.
If the photovoltaic system is unable to cover the power requirement inside the building, the current sensor measures the incoming currents. The energy storage system then discharges capacity into the building system in order to minimize external power consumption and the associated costs.
Before the VARTA element 3 / element 6 energy storage systems is installed, it is necessary to clarify with the energy supplier whether or not the system has to be registered.
3.2 Scope of supply
The VATRA element 3/6 system includes:
Storage cabinet with integrated energy and battery
management
Battery module(s)  Battery inverter  Battery charger with 3 x communication cable, 1 x power
cable (only VARTA element 3), 2 x power cable (only VARTA element 6)
Extra items: 50 A power sensor with sensor board and
sensor cable, 1 x AC connector, 8 x mounting screws for battery modules, 1 x terminal resistor
Instruction manual  Customer folder (with accompanying letter, return
envelope, commissioning report, service booklet,
warranty records, Online Portal Agreement, Technical Online Service Agreement)
Figure 1: VATRA element 3/6
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3.3 System overview
Figure 2: System overview
3.4 Type plates
Figure 3: Type plate VARTA element 3
Figure 4: Type plate VARTA element 6
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3.5 Technical parameters
SYSTEM: ELEMENT 3
Nominal capacity System power Battery inverter layout Dimensions (W x H x D) Weight (incl. battery module) Installation location System connection Inrush
Maximum output fault current Own consumption
optimisation
Power measurement System transport Packaging (W x H x D) Grid fusing
3.2 kWh
1.6 kW without isolation transformer 600 mm x 1,176 mm x 500 mm 105 kg inside the building 400 V AC, 3-phase, 50 Hz < max. operating current for input and output max. 6 A for 100 μs 3-phase, regulated
3-phase, via current sensor vertical on pallet 700 mm x 1,325 mm x 600 mm 16 A (B-character)
Table 3 Technical parameters – VARTA element
SYSTEM: ELEMENT 6
Nominal capacity System power Battery inverter layout Dimensions (W x H x D) Weight (incl. battery module) Installation location System connection Inrush
Maximum output fault current Own consumption
optimisation
Power measurement System transport Packaging (W x H x D) Grid fusing
6.4 kWh
2.0 kW without isolation transformer 600 mm x 1,176 mm x 500 mm 145 kg inside the building 400 V AC, 3-phase, 50 Hz < max. operating current for input and output max. 6 A for 100 μs 3-phase, regulated
3-phase, via current sensor vertical on pallet 700 mm x 1,325 mm x 600 mm 16 A (B-character)
Table 4: Technical parameters – VARTA element
BATTERY MODULE
Electrochemistry cell Nominal module capacity Discharge depth Usable module capacity Module output Connection Cell monitoring Dimensions (W x H x D) Weight Charge/discharge time Module packaging (W x H x D)
Lithium-ion 461 Wh 90 %
2.9 kWh
1.6 kW touch safe integrated 445 mm x 600 mm x 122 mm 35 kg ~2 h (to max. charge state) 800 mm x 460 mm x 600 mm
Table 5: Technical parameters - Battery module
ENVIRONMENTAL CALCULATION DATA
Environment category Classification of wet rooms
Contamination level Penetration protection Ambient temperature Relative humidity Max. altitude Overvoltage category Protection class
Climate-controlled in interior rooms* Wet rooms not permitted 2 IP22 +5 °C to +30 °C 80 % 2000 m above sea level III 1
*The energy storage system is completely enclosed by a building or enclosure. This protects the energy storage system against sun, dust, fungus, radiation from the cold night sky and other environmental influences. The building or enclosure is also climate-controlled in terms of
temperature, humidity and air filtering.
Table 6: Environmental calculation data
3.6 Warranty
For the warranty, see Chapter 8.2 in the Installation Section.
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4 LED displays and control element
WARNING!
Mortal danger from electric shock on opening the cabinet door!
The device accommodates parts carrying hazardous voltages. Contact with these parts can be fatal. Never open the cabinet door without authorisation! Never open the cabinet door!
WARNING!
Property damage from deep discharge of the battery modules!
The energy storage system may be switched off only for maintenance purposes.
4.1 Switching on and off
The On/Off button on the front of the cabinet is pressed by the certified installation engineer during commissioning and for service work.
Figure 5: On/Off button with LED ring
In case of damage (see Chapter 6.2), the system can be shut­down using the On/Off button.
4.2 LED ring indicators
The LED ring in the On/Off button indicates the states and events which occur while the energy storage system is in operation.
LED colour
LED actions
Operating state
Green
Flashes every second (approx. 90 s)
System check
Green
Steady light (appox. 60 s)
Ready
Green
Flashes every 3 seconds
Standby
Green
Pulses with increasing intensity
Charging
Green
Pulses with decreasing intensity
Discharging Red
Steady light
Error*
*The i-button on the welcome page of the web interface displays information about current errors (see Chapter 4.3.2).
Table 7: LED ring indicators at the On/Off button
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4.3 Web interface
The web interface offers the option of configuring settings, and monitoring and controlling the energy storage system functions.
4.3.1 Access to the web interface
To access the web interface, you will need the serial number of the energy storage system. The serial number can be found on the rating plate on the outside of the cabinet. See also Figure 3 and Figure 4.
Connect your storage cabinet to the router of your home
network by means of the network cable. The port (RJ45 socket) is located at the rear of the cabinet. See Figure
14.
Enter into the address line of your browser after
http://varta the serial number of your energy storage system, e.g.:
http://varta121023456
The welcome page of the web interface will appear.
Access to the web interface also requires the browser to be refreshed.
The web interface is factory-tested in the stated versions of the following browsers: Firefox 36.0, Internet Explorer 10.0, Chrome
41.0 und Opera 28.0.
4.3.2 Information on the welcome page (Home)
The welcome page provides an overview of the current power values and the states of the energy storage system:
(1) Charge power of the battery inverter in Watt (W):
The energy storage system is charged to this power (power of the generating unit, e.g. PV system, CHP, less the direct internal consumption).
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(2) Discharge power of the battery inverter in Watt
(W): The energy storage system is discharged to this
power.
(3) Power of the grid supply/grid draw (W): The power
supplied into the public grid or drawn from the public grid is displayed.
(4) Operating state of the energy storage system: The
operating state, e.g. Standby, Operating, Passive, is displayed.
(5) The state of charge of the energy storage system
in %: The charge level of the energy storage system is
displayed.
(6) WWW: Indicates whether the energy storage system
is connected to the VARTA server (green = online, red = offline).
(7) i: Displays information about the storage system, e.g.
IP address, energy counter or the most recent grid fault.
To see further explanations, move the cursor over the symbols.
4.3.3 Ext. relay (optional)
Up to four external relays can be individually programmed for controlling special functions, including switching loads or generating units on and off. Clicking the Ext. relay button shows the corresponding page.
This function is optional. A download available from www.varta­storage.com provides further information.
4.3.4 Portal (optional)
The www.varta-storage-portal.com portal serves to monitor and visualise the VARTA element 3 / element 6 energy storage
systems. To ensure continuous data transmission, the router must not be switched off for longer than five days.
Access to the portal is activated once the "I wish to use the VARTA Storage Online Portal" prompt that appears during online login to the storage system is confirmed. A download is available from www.varta-storage.de for the online login to the storage system and for use of the portal.
Alternatively, you can tick the "I wish to use the VARTA Storage Online Portal" box on the warranty card and return it to VARTA Storage GmbH.
Use of the Online Portal is free-of-charge. The Internet connection costs must be paid by the customer. However, there is no entitlement to access the portal (see the Terms and Conditions for the Online Portal in the download area).
The data displayed on the VARTA Storage Portal cannot be used for computation purposes.
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5 Instructions for maintenance and Cleaning
WARNING!
Potential mortal danger if maintenance work is carried out improperly!
Ensure that only qualified electricians certified by VARTA Storage GmbH carry out the maintenance work.
NOTICE!
Maintenance work that is not carried out correctly will cause physical damage!
All work on the VATRA element 3/6 system is to be documented by the qualified electrician in the service book.
Only original parts are to be used for maintenance work.
5.1 Maintenance work
Maintenance of the VATRA element 3/6 energy storage system comprises:
Service (= inspection and maintenance)  Repair and technical improvements and any additions.
To maintain the warranty entitlement (outside of Germany, Austria and Switzerland: to safeguard any warranty claims), the first service must be carried out within two years of the installation date. Subsequent servicing must be at three year intervals.
Retain the service book together with the instruction manual.
5.2 Cleaning
WARNING!
Property damage from water impact!
Penetrating water can cause damage to the device for which VARTA Storage GmbH accepts no liability.
The operator can clean the outside of the VATRA element 3/6 energy storage system using a damp (not wet!) cloth. Solvents must not be used.
5.3 Instructions for disassembly and disposal
For disassembly and disposal of the energy storage system see Chapter 11.3.
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6 Malfunction/Damage event
WARNING!
Potential mortal danger due to incorrectly executed troubleshooting!
Work on the VARTA Storage GmbH is reserved for qualified electricians certified by VARTA Storage GmbH.
In case of malfunction, contact a qualified electrician certified by VARTA Storage GmbH.
6.1 Malfunction indicators
6.1.1 Malfunction indicators of the LED ring
The LED ring of the On/Off button on the front of the cabinet indicates malfunctions. See Table 7 in Chapter 4.2.
6.1.2 Malfunction indicators on the web interface
Malfunctions are displayed on the welcome page of the web interface.
To do this, click on the i icon.  A window will open. Any pending system errors and the
last five grid faults can be read from this window.
6.2 What to do in case of damage
WARNING!
Potential mortal danger from electric shock during fire fighting or due to flooding!
Turn off system and disconnect fuses! Notify the fire service immediately in case of fire! Inform the fire service that the VATRA element
3/6 system contains lithium-ion batteries!
NOTICE!
Technical defects can damage the battery cells!
Turn off system and disconnect fuses in case of acrid odour or heat development! Avoid sparks and naked flames! Ventilate! Contact a qualified electrician certified by VARTA Storage GmbH!
In case of fire, flooding or similar, loss can be limited by level-headed behaviour.
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Installation
Note: this section is for qualified electricians certified by VARTA
Storage GmbH.
7 Transport and storage
7.1 Transport
WARNING!
Failure to wear protective equipment while transporting and installing the system can cause injury!
Wear personal protective equipment while transporting and installing the system!
WARNING!
Potential mortal danger and property damage to components caused by incorrect transport!
Exercise caution when delivering and unloading the components!
Observe the symbols on the packaging.  The cabinet must not be moved if it already contains
battery modules.
Have the cabinet and the battery modules transported by
several persons.
Do not place any limbs below the device.
Place the cabinet in the vehicle in a vertical position to
prevent slippage.
Secure the cabinet in the vehicle with retaining straps to
prevent tilting.
Transport the battery modules only in their transport
packaging.
Transport the cabinet and battery modules only in closed
vehicles.
Cabinet and battery modules must not be stored in the
vehicle, especially during the winter.
Lithium-ion batteries constitute hazardous goods. The battery modules are constructed and tested such that they can be transported, up to a total weight of 333 kg, in compliance with the conditions of ADR 1.1.3.6 (transport without labelling requirement, insofar as no other hazardous goods are on or in the vehicle). The other requirements of the GGVSEB (Hazardous Goods Regulations for Road, Rail and Inland Navigation) and the ADR (European Agreement on the International Transportation of Dangerous Goods by Road) must also be satisfied. Delivery is made in certified hazardous goods packaging.
The lithium-ion batteries have been successfully subjected to the UN 38.3 Transport Test (UN Manual of Tests and Criteria, Part III, subsection 38.3), and have passed this test. The storage cabinet is packed separately from the battery modules.
Transport regulations and safety instructions:
The VARTA element 3 / element 6 energy storage system
must be transported by the manufacturer or by personnel so instructed by the manufacturer. The instructions must be documented and given repeatedly.
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A certified ABC fire extinguisher with a minimum capacity
of 2 kg must be carried.
Smoking ban in the vehicle and in the vicinity of the
vehicle during loading and unloading!
The outer packaging of a battery module must not be
opened by either the vehicle driver or his co-driver.
When exchanging a battery module, request new hazardous goods packaging if required, pack the battery module and have it picked up by the supplier. The other requirements of the GGVSEB (Hazardous Goods Regulations for Road, Rail and Inland Navigation) and the ADR (European Agreement on the International Transportation of Dangerous Goods by Road) must also be satisfied. Delivery is made in certified hazardous goods packaging.
7.2 Packing/transport check
DANGER!
Mortal danger due to installing damaged components!
Never accept, and under no circumstances install, storage cabinet and battery modules in visibly damaged packaging.
Contact VARTA Storage GmbH!
Storage cabinet and battery modules are supplied in two separate packing units. The battery modules are individually packed and shipped in security boxes. The storage cabinet is shipped upright on a pallet. The installation engineer removes the packaging after installation.
Please examine the shipment for completeness and damage:
If damage is evident even from the packaging, annotate
this on the delivery documents and have the driver sign to confirm.
Reject shipments in severely damaged packaging.
A ShockWatch® label is affixed to the outside of the packaging for detecting improper handling during transport. If the shock indicator goes red, the consignment has been exposed to strong vibrations.
The storage cabinet may be damaged.  Reject the consignment!  Annotate "Indicator red" on the transport note.  Have all parts packed in the original packaging and
demand a damage inspection by the shipper without delay.
Figure 6: ShockWatch® label
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7.3 Storage
NOTICE!
Incorrectly stored component causes property damage!
Store the components in accordance with the regulations!
The storage cabinet and the battery modules must be stored dry (air humidity < 80 %) and at a constant temperature (5-30 °C, optimum: 18 °C).
NOTICE!
Condensate formation due to temperature differences!
Risk of corrosion and short circuit on the electronic components.
Speicherschrank und Batteriemodule so lagern, dass die Temperatur- und Luft­feuchtigkeitsgrenzen eingehalten werden!
Storage cabinet and battery modules must not be stored
outdoors.
Storage cabinet and battery modules must not be
temporarily stored in the transport vehicle.
Avoid sudden temperature changes.
The battery modules will be commissioned by a qualified electrician certified by VARTA Storage GmbH no later than eleven weeks after delivery by the manufacturer.
8 Assembly and installation
DANGER!
Potential mortal danger due to installing damaged components!
Check the storage cabinet, battery modules, cable set and other accessories for visible damage.
Do not install damaged components!
WARNING!
Potential mortal danger through improper installation and assembly!
Assembly and installation work is reserved for qualified electricians certified by VARTA Storage GmbH!
8.1 Requirements for the installation location
CAUTION! Crushing injuries caused by incorrect installation and lack of space!
Place the cabinet in a position that will ensure, assuming proper use, safe assembly, operation and disassembly!
Do not place any limbs below the cabinet!
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NOTICE!
Property damage from the effects of weather with indoor installations.
Install the storage cabinet only inside buildings!
8.1.1 Installation location
Provision must be made for a minimum footprint of 70 cm x 55 cm (width x depth) at the installation location. The distance to the adjacent installations must be approx. 5 cm to the right and approx. 10 cm to the left. A clear space of approx. 120 cm deep is required in front of the device, since all installation and maintenance work is carried out via the front door. The screws for opening the storage cabinet on the left next to the front door must be accessible.
A minimum clearance of 30 cm must be left above the storage cabinet. No objects may be placed on the top of the storage cabinet. The clearance between the wall and the rear of the cabinet must remain free to enable cooling air to escape from the device unhindered.
A minimum of 30 m³ is recommended for the room in which VATRA element 3/6 is installed. A continuous air exchange must essentially be guaranteed, if necessary via forced ventilation, such as windows, air conditioning system, ventilation system or similar. The clearance to the ventilation system must be at least 100 cm.
The room temperature must always be between 5 °C and
30 °C, ideally approx. 18 °C.
Recommended: well-ventilated room without external
heat sources.
Adequate rodent protection must be provided.  The substrate, connecting walls and ceiling must not be
made of heat-sensitive material.
The installation location must conform to a pollution index
of 2.
Access to the shut-down functions must be guaranteed.
The On/Off key must not be blocked.
Smoking is prohibited at the installation location.
8.1.2 Installation location and the surrounding area
The cabinet must not be installed in the following locations:
at which temperatures may reach freezing point, such as
garages, carports or other locations
at which air humidity can exceed 80 % and condensation  can penetrate the saline moisture  flood areas  earthquake zones – additional safety procedures are
required in such areas
that contain ammonia  at heights of over 2000 meters  potentially-explosive atmospheres  exposed to direct sunlight  that undergo major ambient temperature fluctuations  wet areas (environment category 2)
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8.2 Warranty
For the warranty to be effective (to safeguard any warranty claims outside Germany, Austria and Switzerland), VARTA Storage GmbH must be in possession of the following data:
Commissioning report (including date of commissioning)  Serial number of the VARTA system. (The ID label for the
system is affixed to the inside of the storage cabinet door.)
Serial number(s) of the battery module/battery modules.
(The ID label for the battery module is provided with the packaging.)
The installation engineer enters these data in the VARTA Storage GmbH installation engineer portal. Within four weeks of the installation date, the customer must register their data (name, address, email address, telephone number) at www.varta­storage-portal.com and enter the serial number of the VARTA system and the activation code. The installation engineer can also register the data, subject to the customer's consent.
The activation code label is affixed to the inside of the
storage cabinet door. This label is provided for the customer's personal records.
As an alternative to this procedure, the completed and signed warranty records (commissioning report and warranty card, together with the affixed ID label for the VARTA system and battery modules) can be sent to VARTA Storage GmbH within four weeks of the installation date.
Figure 7: ID label for the system (inside the storage cabinet)
Figure 8: ID label for a battery module (provided with the packaging)
Figure 9: Activation code label (inside the storage cabinet)
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8.3 Preparing the electrical connection
DANGER!
Mortal danger from electric shock!
Before working on electrical equipment, disconnect the fuses devices, secure to prevent reconnection and check the equipment has been disconnected from the power supply.
CAUTION!
Risk of injury and property damage if the electrical connections are incorrectly installed!
The fuse upstream of the energy storage system must be three-pole. This satisfies the requirements for an isolator. Protect the device connection on the energy storage system with a type B, three-pole, 16-A fuse. Observe the shut-off conditions in accordance with VDE 0100-410. Install LS and FI for connecting the consumers entitled to the emergency power supply. Never connect the energy storage system without PE and N.
NOTICE!
Property damage if the electrical connections are incorrectly installed!
During installation, respect the conductor cross­sections specified in the instructions!
A suitable interruption facility must be installed between power grid and customer plant (e.g. selective automatic cut-out 'SAC'), which can be used for all-poles disconnection of the customer plant from the grid during maintenance work.
The position of the interrupt facilities is marked in the connection diagrams (see Figures 1a/1b and 2a/2b in the attachment).
8.3.1 Connections at the distributor
The following connections must be prepared:
Device connection: 5 x 2.5 mm²  Sensor cable: RJ12  LAN connection
Do not expose the RJ12 cable to mechanical load.
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To minimise losses, the cable run between storage system and connection must not exceed 20 m.
8.3.2 Preparation of the AC port for the building grid
To connect to the building grid, the 5-wire AC cable must be attached to the supplied AC connector.
Strip the cable 4 cm at the end.
A flexible plastic-sheathed cable facilitates assembly work.
The PE conductor must be 0.5 cm longer than the other
four conductors (L1, L2, L3, N). Shorten these conductors accordingly.
Strip the wires for the building connection approx. 8 mm
at the ends.
Ferrules must be used for fine-stranded conductors.  Open the socket: Do this by loosening the union nuts of
the strain relief and detaching the strain relief from the socket part. Release the catch by pressing on the two side lugs at the same time.
Figure 10: AC socket
Push the strain relief over the cable
Insert the wires as shown in Figure 11 into the screwed
connections of the socket and screw in place.
Push socket and strain relief into one another: The two
parts must audibly snap into one another with the aid of the side lugs.
Tighten the union nuts of the strain relief.
Figure 11: Assignment of screwed connections AC-socket - connection side
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8.3.3 Current sensor
NOTICE!
Disruption to the charge and discharge function of the energy storage system due to interchanged phases!
Phases L1, L2, L3 must be identical for building connection, current sensor and terminal block.
Executing the connection purely as a right-hand phase rotation is not sufficient.
For the own consumption optimisation mechanism to function, the current sensor must record all consumption and feed values. The sensor is therefore located immediately behind the consumption and feed meter.
Figure 12: Current sensor - direction of installation
The current sensor is designed for top hat rail mounting and for a maximum current of 50 A per phase. For installation, the sensor board points towards the sub-distributor. For installation direction, see also Figure 12.
Phases L1, L2, L3 must be identical for building connection, current sensor and terminal block. This means, phase L1 of the building connection leads through opening L1 of the current sensor to terminal L1 on the terminal block in the storage cabinet.
Connect the current sensor supplied with the sensor cable to the energy storage system. See the current measurement socket in Figure 14.
For the connection arrangement, see figures 1a/1b and 2a/2b in the attachment.
8.4 Preparing for assembly
Make sure that the substrate is adequately load-bearing, have the structural analysis checked if necessary. The preconditions for mechanical assembly at the installation location are as follows:
an even surface  any unevenness compensated  a wall without lines running in front or inside
The technical requirements for the storage cabinet connection must be satisfied by a qualified electrician certified by VARTA Storage GmbH.
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8.5 Installing and electrical connection of the cabinet
DANGER!
Mortal danger from electric shock!
Before making the electrical connection, switch off the storage cabinet.
Make sure that the On/Off button on the front of the cabinet is unlatched (= not depressed).
At the electrical equipment, disconnect the fuses, secure to prevent reconnection and check the equipment has been disconnected from the power supply.
NOTICE!
Condensation caused by cold weather. Property damage caused by switching on
electronic components from cold.
The storage cabinet must have reached room temperature before being switched on.
The cabinet weighs approximately 70 kg! It must always be assembled by two or more people!
Tilt cabinet by maximum 45° at the installation location
Risk of slipping away!
Plug the AC connector into the AC port. The catch
audibly engages.
Figure 13: AC port on the rear of the storage cabinet
Insert the sensor cable and the network cable into the
corresponding sockets.
Figure 14: RJ12 and RJ45 sockets on the rear of the storage cabinet
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Changes to the factory settings require a network connection.
Position cabinet at the installation location.  Screw your storage cabinet with suitable fasteners at the
back wall. For this, turn the mounting angle 90 ° outwards.
Figure 15: Wall mounting VATRA element 3/6
Set the screw feet to a height of approx. 4 cm (max. 5
cm).
Align the storage cabinet using a spirit level. A fine
adjustment can be made using the screw feet.
8.6 Assembling the battery modules
DANGER!
High voltage! Mortal danger from electric shock!
The storage cabinet may be opened only by qualified electricians certified by VARTA Storage.
DANGER!
High voltage! Mortal danger from electric shock!
The contacts on the battery module and on the battery charger can remain energised at hazardous levels for up to 3 minutes after switching off. The storage cabinet must always be switched off for 3 minutes before installing or removing any components. The device must not be operated with the battery charger compartments opened.
CAUTION!
The battery modules weigh 35 kg! Injury hazard during assembly!
Have two people lift and carry the battery modules.
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8.6.1 Opening the cabinet
Make sure that the On/Off button on the front of the
cabinet is set to "Off" (= not depressed).
To open the cabinet, undo the screws to the side near the
door.
Aid: Torx 25 screwdriver
Figure 16: Opening the cabinet
8.6.2 Checking the battery modules
Unpack the battery modules.  Battery modules must not be/become damaged or
contaminated.
Remove the plastic cover from the rear Figure 17.
Figure 17: VATRA element 3/6 battery module
Check the functionality of the battery modules. Do this by
pressing the activation button (arrowed).
The following LED indicator on the battery module
indicates standby mode:
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Press the activation button again to switch off the battery
module. (Hold down the button until the LED extinguishes.)
If the battery module is contaminated, damaged or not in standby mode, contact VARTA Storage.
8.6.3 Removing and connecting battery modules
ACHTUNG!
The battery modules are charged. Uncontrolled discharge poses a risk of
property damage.
The battery modules must be switched off before being installed in the storage cabinet.
Up to two battery modules can be installed. The battery modules are placed in a suspended position (see Figure 18).
Lift the battery module/battery modules onto the two
mounting rails using the handles.
Note: The battery power connection is on the left battery module.
Figure 18: Installing the battery module(s)
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Installing one battery module (only VARTA element 3)
Make the connections according to Figure 19 (see also Figure
17).
Figure 19: Connecting the battery charger to one battery module
Battery power connection: Position the plug on the
battery module and screw in place.
Communication 1: Insert the four wires into the
openings in the clamping connector on the battery module. For the pin assignment, see Figure 20.
Note: The connections for error and warning messages are self­clamping.
Figure 20: Clamping connections for error and warning messages
NOTICE!
Risk of property damage due to transposed wires for error and warning messages!
Observe the colour-coding of the wires!
Communication 2: Remove the blanking plug from the
RJ11 socket on the battery module. Connect the RJ11 cable.
Communication 3: Remove the two RJ45 blanking plugs
on the battery module. Connect the battery module to the battery charger by means of the RJ45 cable. Replace the second RJ45 blanking plug with a terminal resistor.
Push the battery module over the mounting holes in the
centre of the rails (see Figure 18).
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Fasten the battery module handles using the screws
supplied. Aid: Hexagon socket driver, size 4
Press the activation button on the battery module (see
Figure 17.
The following LED indicator on the battery module
indicates standby mode:
Installing two battery modules (only VARTA element 6)
If two battery modules are installed, one module (Module 1) is placed in the centre of the storage cabinet, the other (Module 2) at the front. Module (1) is the master module. Module 2 is the slave module.
Make the connections according to Figure 21 (see also Figure
17):
Make sure that the battery modules are switched off and no LED indicator is lit.
Figure 21: Connecting the battery charger to two battery modules
Battery power connection: Position the plugs on the
battery modules and screw in place.
Communication 1: Insert the four double ferrules into the
openings in the clamping connector on the master module. Insert the four ferrules into the openings in the clamping connector on the slave module. For the pin assignment, see Figure 20.
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Note: The connections for error and warning messages are self-
clamping.
NOTICE!
Risk of property damage due to transposed wires for error and warning messages!
Observe the colour-coding of the wires!
Communication 2: Remove the blanking plug from the
RJ11 socket on the master module. Connect the RJ11 cable on the battery module.
Communication 3: Remove the RJ45 blanking plugs on
the battery modules. Connect the two modules together by means of short RJ45 cables. Connect the master battery module to the battery charger by means of long RJ45 cables. Replace the second RJ45 blanking plug with a terminal resistor on the slave module.
Push the master module onto the centre fastening holes
(see Figure 18 and the slave module onto the front fastening holes.
Fasten the battery module handles using the screws
supplied. Aid: Hexagon socket driver, size 4
Press the activation button on the master battery
module (see Figure 17).
The following LED indicator on the two battery modules
indicates standby mode:
8.6.4 Closing storage cabinet
If contamination accumulates inside the cabinet, vacuum
out the cabinet. Do not use water for cleaning.
Close the storage cabinet door and secure with screws.
Do not leave any tools in the cabinet!
8.7 Commissioning
WARNING!
Potential mortal danger and property damage if commissioning is performed by inadequately qualified personnel!
Commissioning installation work is reserved for qualified electricians certified by VARTA Storage GmbH!
8.7.1 Switching on
The following steps are required to switch on the VATRA element 3/6 energy storage system:
Make sure that the network cable is connected.  Connect the fuse at the building grid.  Activate storage system using On/Off button. The button
engages.
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Figure 22: On/Off button
The initialisation process can be tracked at the LED ring of the On/Off button (see also Table 7):
Flashes green every second: System check (duration:
approx. 90 s).
Steady green light: The storage system is ready
(duration: approx. 60 s).
Steady red light: Probable error = the battery modules
have not yet been configured. Continue with commissioning. Note: If the LED ring fails to respond, check the following:
On/Off button correctly latched?  Fuses connected?  Grid connection correct?  Door contact switch not damaged?
8.7.2 Password entry
The storage cabinet must be connected to the router of the home network by means of the network cable.
Connect your PC/Notebook to the customer's network.  Enter into the address line of your browser after
http://varta the serial number of your energy storage system, e.g.: http://varta121123456
(The serial number can be found on the rating plate on the outside of the cabinet.)
The welcome page of the web interface will appear.
If the storage system cannot be accessed via the customer's network, a connection can be established by means of the VARTA network configurator (NCT). Enter your user name and password to download this from:
https://www.varta-storage.com/de/nc/b2b.html Certain parameters may be changed only by trained and qualified
personnel, not by the operating company!
Enter the password into the field for installation engineer
access.
Further tabs appear in the header.
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8.7.3 Enter device name and serial number of the battery
modules
Click on the Settings tab (arrowed).
The Settings page opens.
Click on the Basic settings tab.
Enter a name for the device. The maximum length is 20
characters.
Enter the serial number(s) of the installed battery module
(VARTA element 3) or installed battery modules (VARTA element 6).
Click on Apply.
The storage system cannot be correctly commissioned unless the correct serial numbers of the battery modules are stated.
Once the correct serial number has been entered, the
LED ring indicator changes from red to green.
Remedy: The LED ring remains red
Error 1: In Settings, check whether the serial number(s) of the
battery module(s) have been correctly entered. Correct the numbers if necessary and then switch the battery storage system off and back on again.
Error 2: Switch off the energy storage system and open the door. Check the LED indicators on the battery modules.
Option 1: On the Master and Slave modules, the two left
LEDs flash green and red in alternation.
Master:
Slave:
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Check whether the communication cable is inserted between the battery modules. If not, insert it. Press the activation buttons on both battery modules, one after the other, for 20 s. All LEDs on both battery modules must then extinguish.
Activate the Master module with the activation key. Close the door and switch the storage system back on.
Option 2: Only on the Master module, the first and second
LEDs from the left flash green and red in alternation. On the Slave module, the left LED lights up green permanently.
Master:
Slave:
Check whether the communication cables are correctly assigned as shown in Figure 21. Re-arrange the cables if necessary. Press the activation buttons on both battery modules, one after the other, for 20 s. All LEDs on both battery modules must then extinguish.
Activate the Master module with the activation key. Close the door and switch the storage system back on.
If the LED ring is still red, contact VARTA Storage GmbH.
8.7.4 Portal connection
Select the Network tab from Settings.
By default, the storage device uses the customer's network settings. Check the selection field next to Activate DHCP and enter the network mask.
If the parameters are not read out automatically, refer to the instructions for the network router.
With standard DSL routers, DNS and gateway address are usually identical. With company systems, they can differ. Release of ports 4500, 21 and 37 is also required for the connection (does not apply for all users).
If IP address, DNS address and gateway are to be set up statically, knowledge of the static address assignment is required. This is needed to read out the router's network configuration, for example.
See Chapter 9.4.2.
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8.7.5 Country code NA Protection
The NA protection settings have to be adjusted to the requirements of the country in question.
Click on the Grid parameters tab.  The Grid parameters page will appear.  Change the settings - if necessary.
Setting: Automatic
Check the Automatic option.  Select the country for which the settings are to apply from
the dropdown list.
Click on Apply.
The Automatic setting uses the default values that are saved for the selected country (see Table 8).
For the individual grid parameter settings, see Chapter 9.4.4.
8.7.6 Checks on the welcome page of the web interface
Check the current sensor data for plausibility (circled).
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8.7.7 Checking the connections
Once the energy storage system has been installed and connected, it is necessary to check whether the system signals a current flow in all three phases (plausibility).
Return to the welcome page and click on the System tab.
Check the measured values for I Grid for plausibility.  An error has occurred if the value for I Grid hovers
between +0.01 and 0.01 at all three phases. Check the
cable connection to the current sensor. Note: The system may need to have a large load at all three
phases.
8.7.8 Reboot
After changing settings in Parameters, a reboot must be performed subsequently.
Turn the storage system off and then back on again at
the On/Off button.
8.7.9 Checks after the reboot
Check the online status on the welcome page (arrowed).
On the System page, check whether all the installed
battery modules are displayed (arrowed).
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On the Settings page, select the Service settings button.  From battery module settings, select Discharge and enter
1000 W. Then click on Apply to confirm.
Select the System page.  Check the operating state of the battery modules/battery
module for plausibility.
8.7.10 Exiting the password-protected area
Finally, it must be ensured that the customer does not have access to the password-protected area.
Click on the Logout tab.
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Operation (password-protected area)
Note: this section is for qualified electricians certified by VARTA
Storage GmbH.
9 The password-protected area
Note: this section is for qualified electricians certified by VARTA
Storage GmbH.
9.1 Entering the Password
The procedure for accessing the web interface is described in the Operation section. See Chapter 4.3.1.
Certain parameters may be changed only by trained and qualified personnel, not by the operating company!
Enter the password into the field for installation engineer
access.
Further tabs appear in the header.  Click on a tab.
9.2 System
This page provides an up-to-date overview of the serial numbers and operating state of the battery modules and of the battery chargers. The overview also includes the battery inverter data.
Grid and system faults are displayed in the system fault list and GS fault list fields.
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9.3 Version
The versions of the system components can be viewed on this page.
9.4 Settings
The Settings page gives you access to other input screens.
Click on a tab.  Enter the parameters or check the corresponding
selection box.
Confirm your entries by clicking on the Apply button.
Alternatively, you can restore the Factory settings or
return to the previous operating state via Return.
9.4.1 Basic settings
Basic settings can be changed on this page:
Device name: The name of the device is usually entered
during the commissioning procedure. The maximum length is 20 characters.
Date and time can be entered here. As a rule, these
parameters are automatically synchronised via the time server.
Time zone: For Germany, the time is GMT+1 (Greenwich
Mean Time + 1 h).
Language: The language display on the web interface
can be selected.
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Serial number of battery module 1 (battery module 2):
Enter the serial number(s) of the battery module/battery
modules here.
9.4.2 Network
By default, the storage device uses the customer's network settings. Check the selection field next to Activate DHCP and enter the network mask.
IP address: is read out automatically.  Network mask: must be entered manually if DHCP is not
activated.
DNS address: is read out automatically.  Gateway: is read out automatically.  DHCP: This option is used to activate the automatic
referencing of the customer's network parameters.
If IP address, DNS address and gateway are to be set up statically, knowledge of the static address assignment is required. This is needed to read out the router's network configuration, for example.
9.4.3 Service settings
The following parameters can be set on this page:
Time reboot: By default, the system reboots at between
3 and 4 o' clock. Any hour between 0 and 24 hrs can be entered for the reboot time.
Days reboot: The weekday/s of the reboot are
determined via checkboxes. At least one checkbox needs to be selected.
Manual fan control: It is possible to toggle between
automatic (= 0), medium setting (= 1) and the highest setting (= 2).
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Air filter – reset the time: The time until the next air filter
change can be reset. Check the selection field - if the air
filter is actually replaced or cleaned.
Battery module control: The energy storage system can
be discharged for test purposes.
9.4.4 Grid parameters NA protection
The grid parameters for NA protection have to be adjusted to the requirements of the country in question.
Automatic: If the selection box is checked, the saved
settings will be used for GS protection. The country for
which the settings are to apply can be selected from the
dropdown list. Table 8 contains the default values that are saved for Germany,
Austria, France, Italy and the Netherlands.
In addition to the default values, the minimum and maximum values for the voltage between the phases can be set via the numerical input fields.
Minimum voltage between two of the three phases
(within the limits: 0 – 600 V)
Maximum voltage between two of the three phases
(within the limits: 0 – 600 V)
Grid parameters
Country
FNETWORK_MIN
(in Hz)
FNETWORK_MAX
(in Hz)
UNETWORK_MIN
(in V)
UNETZ_MAX (in V)
UNETZ_MAX10 (in
V)
Germany
47.50
51.50
184
264
253
Austria
47.50
51.50
184
264
258
France
47.50
51.50
184
264
253
Italy
47.50
51.50
184
264
253
Netherlands
47.50
51.50
184
264
253
Table 8: Grid parameter default settings
Note: If the Automatic option is not selected, the following
parameters can also be set to suit the individual requirements of the grid operator:
Minimum grid frequency (FGRID_MIN)  Maximum grid frequency (FGRID_MAX)  Minimum grid voltage (UGRID_MIN)
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Minimum grid voltage (UGRID_MAX)  Minimum grid voltage over 10 minutes (UGRID_MAX10)
9.4.5 Logging out
Finally, it is necessary to ensure that the customer is unable to access the password-protected area.
Click on the Logout tab.
Maintenance
Note: this section is for qualified electricians certified by VARTA
Storage GmbH.
10 Maintenance basics
10.1 Safety instructions
WARNING!
Potential mortal danger if maintenance work is carried out improperly!
Only qualified electricians certified by VARTA Storage GmbH are permitted to carry out maintenance work.
Ensure the work place is clean! Loose parts can cause accidents!
NOTICE!
Maintenance work that is not carried out correctly will cause physical damage!
All work on the VATRA element 3/6 system is to be documented by the qualified electrician in the service book.
Only original parts are to be used for maintenance work.
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The instruction manual is to be followed for all work on the VATRA element 3/6 system.
Make sure adequate space is available for assembly.  Do not place any limbs in narrowing spaces.  Switch off the system before starting work.  Once all work is complete, restore connections and
attachments to a clean condition.
Make sure nobody is in the hazard zone before
connecting the power supply. No work on the storage system shall be permitted unless the
system is switched off and no voltage is present. Both the device's 16 A mains fuse and emergency power connection 6 A fuses must be enabled.
10.2 Scope of maintenance
Maintenance of the VATRA element 3/6 energy storage system comprises:
Service (= inspection and maintenance).
Repair and technical improvements and any additions.
For documentation of maintenance see Chapter 5.1.
11 Service and repair work
11.1 Checking the storage cabinet from outside
11.1.1 Checking the storage cabinet from outside
Is the ventilation strip on the storage cabinet cover (see
Chapter 11.3.7) clogged/contaminated? The ventilation strip can be cleaned from inside once the cover has been removed (see Chapter 11.3.7).
Is the room temperature between 5 and 30 °C (the ideal
temperature is 18 °C)? Consult with the customer as to how the temperature in the installation room can be maintained. An active fan may need to be installed.
Are the feet steady? Adjust as necessary using the
screw feet.
Is the wall-mounting stable?
Tighten or replace the screw as necessary.
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11.2 Checking the system parameters
The service and repair work must also include a system parameter check. This work is done via the web interface. For operation in the password-protected area, see Chapter 9.
The checks to be recorded in the service booklet (Sections 11.2.1 to 11.2.5) are tagged with the reference (Service). Observe also the service booklet.
11.2.1 Checking the online status (Service)
On the web interface welcome page, the WWW icon indicates whether the energy storage system is connected to the VARTA server (green = online, red = offline).
11.2.2 Error history (Service) Reading out the error history
Select the System button from the header.  The error lists for the storage system and the grid and
system (GS) protection will be displayed (arrowed).
Error rectification
Verify the errors using the fault descriptions.  Check the GS settings if applicable. See Chapter 9.4.4.
Rectify any errors.  Restart the storage system. Turn the storage system off
and then back on again at the On/Off button.
If the errors cannot be rectified, notify VARTA Service.
11.2.3 Checking the software version (Service)
Select the Version tab from the header.  The software versions can be read off.
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11.2.4 Software update (Service)
Software updates are required for energy storage systems that are operated offline or if a "Technical Online Service of VARTA Storage" Agreement has been concluded.
A software update is useful only if the errors have been rectified, no further errors appear on the web interface and the system was restarted.
11.2.5 Air filter change: Resetting the time (Service)
The air filter must be replaced at every second service. See Chapter 11.3.5.
From the Settings tab, select the Service settings item.  Check the Reset air filter box.  Click on Apply.
11.2.6 Checking the fan (Service)
From the Settings tab, select the Service settings item.  Use Manual fan control to toggle between settings 0 (=
automatic), 1 (= medium setting) and 2 (= highest setting).
Check whether the fan is blowing out air at the top. Wait
for 10 to 15 s until the fans have reached a constant speed.
Note: It is possible that the fans are already running.
Pay attention to noises that indicate mechanical damage.  Reset to the Automatic (0) setting.
To replace and clean the fan, see Chapter 11.3.7.
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11.2.7 Checking the current sensor values
Select the System page.
Check the current sensor values I Grid1, I Grid 2 and I
Grid 3 for plausibility:
If a current sensor value is approx. 0, although this phase
is currently loaded, the connection between current
sensor and battery storage system may be erroneously.
If necessary, load all phases separately: Switch on
selected consumers or manually discharge the battery
storage system. See chapter 9.4.3.
Note: During a manual discharge, current from the
battery storage system is systematically applied to the
phases.
Check the current flow through all three phases, using the
current probe if necessary! Procedures in case of unusual current sensor values:
If the current sensor value of one or multiple phases is 0
despite load, check the connection between battery storage system and current sensor.
If necessary, replace the connection cable (RJ12 cable).  Check whether the current sensor board is correctly
connected.
11.2.8 Checking the battery chargers
On the System page, check the operating state of the
battery chargers for plausibility.
11.2.9 Checking the battery modules
The warnings and errors of the battery modules are
displayed on the System page.
Note: The individual modules are counted starting from 0, e.g. in case of two modules, from 0 to 1.
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11.2.10 Discharging the battery modules
The battery modules can be discharged manually for test purposes.
Select Settings and then the Service settings tab.
From the Battery module control setting, select
Discharge.
Enter a value of 1000 W, for example.  Click on Apply.
11.3 Service and repair: cabinet interior
DANGER!
Mortal danger from electric shock!
Before working on electrical equipment, disconnect the fuses devices, secure to prevent reconnection and check the equipment has been disconnected from the power supply.
DANGER!
The energy storage system components carry current.
Mortal danger from electric shock!
De-energise the energy storage system prior to carrying out any work:
Switch off the system at the On/Off button (button unlatched)!
Disconnect the fuses of the device connection!
DANGER!
Mortal danger from electric shock due to failing to respect the discharge time!
The battery storage system requires 3 min. of discharge time until it has fully discharged.
After switch-off, wait 3 min. before working on the energy storage system!
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11.3.1 Opening the cabinet
To open the door, remove the three screws on the left
side of the cabinet.
Aid: Torx 25 screwdriver
Figure 23: Opening the door
11.3.2 Remove battery inverter
Undo the two screws M 5 x 16 (arrows!) on the battery
inverter.
Aid: Hexagon socket driver, size 4
Figure 24: Undoing screws on the battery inverter
Pull the battery inverter out of the grips using both hands!  To reinstall, perform the working steps in reverse order.
11.3.3 Removing and installing the battery charger
WARNING!
The battery module is electrically charged! Uncontrolled discharge poses a risk of
property damage to battery charger and battery module.
Switch off the battery module at the activation button prior to removing the battery charger.
Make sure no LEDs are lit on the battery module/battery
modules.
Figure 25: Connections on the battery charger
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Remove the following power cables from the battery
charger:
Battery power connection,
Comm 1 (error and warning messages)
Comm 2 (RJ11) and
Comm 3 (RJ45)
Push a screwdriver into the side mounting slots to
dislocate the battery charger.
Aid: Slotted screwdriver
Pull the battery charger approximately half-way out of the
compartment.
Remove the inverter connection at the rear.
Figure 26: Battery charger - rear
Pull the battery charger out of the compartment using
both hands.
To reinstall, perform the working steps in reverse order.
The battery charger locks in the end position. It is not necessary to use a screwdriver.
Switch the master battery module back on at the
activation button to restore the configuration.
11.3.4 Removing and installing battery modules
CAUTION!
The battery modules weigh 35 kg! Injury hazard during assembly!
Have two people lift and carry the battery modules.
NOTICE!
The battery module is electrically charged! Uncontrolled discharge poses a risk of
property damage to battery charger and battery module.
Switch off the battery module at the activation button prior to removal.
NOTICE!
Property damage due to incorrect handling!
The battery modules are maintenance free and must not be opened under any circumstances.
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