solarwatt MYRESERVE User manual

MYRESERVE BACKUP POWER
DE
EN
Installationsanleitung
Installation Instructions
Important
installation
instructions
Read the instructions rst
before starting to install
the product.

1 About this guide
This installation guide applies to the MyReserve
Backup Power. This system combines optimally
coordinated devices for a reliable backup power
supply from a PV system and a MyReserve stora-
ge system. Read this installation manual careful-
ly, to ensure a awless function of the MyReser-
ve Backup Power.
Installation and maintenance must be conduc-
ted by a qualied and SOLARWATT certied
electrician.
The installation instructions should be kept
near the MyReserve and must be accessible for
all persons involved in work on the system at
any time.
The installation of the MyReserve Backup Po-
wer is only permittet under consideration of
installation instructions of all components
included (see chapter Further applicable do-
cuments).
2 Scope
This document is for professionals only. The activities described here may only be performed by
persons with at least the following qualication:
• Training in the installation and commissioning of electrical equipment
• Training in electrical hazards and local safety regulations
• Knowledge of relevant standards and guidelines
• Knowledge and observance of this document with all safety instructions.
3 Limitation of Liability
SOLARWATT takes no liability for damage to
persons, property, the product, as well as con-
sequential damages resulting from non-com-
pliance of this installation and operating inst-
ructions have arisen. SOLARWATT does not take
liability for damage to the product caused by
improper use, repairs, opening of the storage
system or through any acts of unqualied or
non- SOLARWATT-certied electricians. This li-
mitation of liability also applies when using un-
authorized spare parts as well as failure to com-
ply with the prescribed maintenance intervals.
It is forbidden to conduct unauthorized modi-
cations or technical changes to the product.
© SOLARWATT GmbH 2019
PAGE 18 | Version: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH

4 MyReserve Backup Power brief description
The MyReserve Backup Power is the combina-
tion of optimally coordinated devices for a re-
liable backup power supply from a PV system
and the MyReserve energy storage system. It
ensures automatic further supply of all phases
in case of power failure. To do this, the conven-
tional DC generator-coupled connection of My-
Reserve is going to be mantained. The battery
input of the Fronius Symo Hybrid inverter is
NOT used.
X
The operation of the MyReserve Backup Power
can be split for areas that depend on backup
power and areas without backup power protec-
tion (e.g. large consumers, which would exceed
the limitations of the MyReserve Backup Power).
The included SwitchBox is installed between
house distribution and PV system. It contains
all components for automatic grid separation
(including AC sensor) while simultaneously en-
suring the backup function.
MyReserve Backup Power process:
• Power supply from the grid fails
• MyReserve Backup Power automatically
detects
the power failure
• Disconnects household from the grid
• Enables backup power mode of the
inverter and the battery storage system
• MyReserve remains active without
• interruption and switches to "supply from
battery"
• Fronius Symo Hybrid restarts, builds a
• neutral conductor and starts self-test
• Power is supplied from battery storage
and PV system
For correct performance dimensioning, a
detailed planning of the system is required.
PV-module MyReserve Fronius
Symo Hybrid
consumers
SWITCH
BOX
DATE: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH | PAGE 19

5 Safety
5.1 Intended use
The MyReserve Backup Power must be used
exclusively in combination with a MyReserve
storage system and a Fronius Symo Hybrid. Be
sure to observe all technical data in the data
sheet. Every di erent kind or improper use of
the MyReserve BackUp Power and its individual
parts can cause undesirable operating behavior,
defects on the device and / or life-threatening
situations. As a result, there will be no claim for
warranty services.
5.2 Prohibited use
• Do not use the SwitchBox with an island system
• Do not use more than one SwitchBox per in-
stallation
• Do not connect more than one Fronius Symo
Hybrid to the SwitchBox
• Do not use the SwitchBox in combination
with a Fronius battery or other battery stora-
ge systems that are not from SOLARWATT
• Do not use the SwitchBox in combination
with a MyReserve 500 or MyReserve 800
5.3 Safety instructions
Danger to life due to electric shock!
The live components are subject to life-threatening voltages. The SwitchBox must be
only connected to the house distribution system when it‘s de-energised. Here the 5
safety rules must be observed.
Damage or destruction of the SwitchBox due to improper use!
By applying mains voltage to the CAN bus terminals or an operation outside of the
speci ed technical data (see Chapter 13) the SwitchBox may be damaged or destro-
yed.
PAGE 20 | Version: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH

6 System components
Fronius Symo Hybrid
3.0-3-S or
4.0-3-S or
5.0-3-S
Installation guide
MyReserve
7,2 kWh (3 MyReserve Packs) or
9,6 kWh (4 MyReserve Packs) or
12 kWh (5 MyReserve Packs)
SwitchBox incl. Cable
glands*
Uninterruptible power
supply (UPS)
* Overview of supplied cable glands
1 M32/M40 - X1 grid 6 M20 - X5 Com Inverter
2 M20 - earthing 7 M20 - X6 CAN EM
3 M12/M20 Membrane (pressure equalization) 8 M25 with sealing insert - CAN MyReserve
4M32/M40 - X2 House 9 M32/M40 - X3 Backup
5M32 - x4 Inverter
DATE: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH | PAGE 21

7 Assembly and installation
7.1 Additional tools, aids and installation material
beyond the usual installation accessories the following is required:
• Data cable / patch cable (Cat. 5e minimum) CAN connection MyReserve and SwitchBox,
communication link SwitchBox and Fronius Symo Hybrid
• Laptop (for setting up the Fronius Symo Hybrid system monitoring)
• Socket for UPS
• Mounting material
7.2 Mounting the SwitchBox
• Mount the SwitchBox to the wall with suitable fastening material
PAGE 22 | Version: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH

7.3 Interfaces of the SwitchBox
X1
L1 L2 L3 N N L1 L2 L3 PE PE PE L1 L2 L3 N L1 N L1 L2 L3 N
1 2 3 4 5 6 7 1 2 3
X2 X3 X4 X5 X6 X7
Shield
Cable cross-sections of the terminals:
X1 - 2,5 - 16 mm² -> GRID
X2 - 2,5 - 16 mm² -> House
PE - 2,5 - 16 mm² -> PE
X3 - 2,5 - 16 mm² -> backup
X4 - 0,75 - 6 mm² -> AC MyReserve
X5 - 0,75 - 6 mm² -> Inverter
X6 - 0,2 - 1,5 mm² -> Com. Inverter
X7 - 0,2 - 1,5 mm² -> CAN EM
7.4 Connecting the devices to the SwitchBox
• Connect the devices to the SwitchBox according to the enclosed wiring diagram
• for main distribution - terminal -X1
• for a) House distribution (not backup power supported) - terminal -X2
b) House distribution ( backup power supported) - terminal -X3
• to the power outlet for the UPS (MyReserve) - terminal -X4
• to the inverter - terminal -X5
communication links
• CAN to MyReserve Command - via RJ45 interface at S1
• to the Fronius Symo Hybrid Manager (= inverter communication terminal) - terminal -X6
• if available: connection to the EnergyManager - terminal X7
DATE: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH | PAGE 23

Always use a network cable (at least Cat.5e) for CAN communication and communication to
the inverter. Isolate unused wires separately to prevent short circuits.
Please nd wiring diagrams for all dierent SwitchBox types in the Installation In-
structions MyReserve SwitchBox by enwitec (see also included documents). This is
for your information only and does not involve any steps of the in installation of the
MyReserve Backup Power.
8 Commissioning
• Enable the power supply by switching on the main fuse and all other fuses in the house dis-
tribution and switch on the residual current switch in the switchbox.
• Commission the devices in the following sequence
1. Switch o the DC circuit breaker on the inverter
2. Switch on the AC supply on the inverter
3. Switch on MyReserve Command‘s DC circuit breaker
4. Wait until the inverter has reached his operating point
5. Switch on the AC power supply for MyReserve Command (F1 in SwitchBox )
6. Plug in the UPS and switch it on
7. Plug MyReserve Command into the UPS in one of the provided sockets
The power socket of the UPS marked red in the gure is not supplied
during a power failure.
Therefore, use one of the other socket slots for connection with the
MyReserve Command.
PAGE 24 | Version: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH

9 Required settings for the inverter
• Commissioning on the inverter display
• Activate the backup power function on the inverter display (see  gure)
• Conduct technician wizard according to the Fronius Symo Hybrid Installation guide
Excerpt from installation instructions Fronius Symo Hybrid
DATE: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH | PAGE 25

• Connect to the inverter (Fronius system monitoring)
• Select menu item settings
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• Select settings in the menu item IO-assignment
(after that, you will be asked for the service password which was set in the technician wizard)
• Make backup power settings as shown below
DATE: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH | PAGE 27

• Select settings under the menu item plant overview
• Carry out the con guration according to the following  gure
PAGE 28 | Version: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH

10 Required settings for the MyReserve
Minimum software version BMS 3.36 / 3.37
11 Possible errors
Error pattern Possible troubleshooting
unsuccessful switchover
procedure
Check the wiring of the communication cable to the Fronius
Symo Hybrid and compare it with the enclosed wiring diagram.
Check if there is a patch cable between SwitchBox and MyReser-
ve and if all wires for CAN connection are used.
failed
commissioning
In backup power operation,
the residual current circuit
breaker in the SwitchBox
trips
Check whether there is an earth fault or a connection between
neutral and protective conductor in the house installation.
12 Further applicable documents
• Installation and operating instructions MyReserve (min. Rev 006)
• Installation instructions Fronius Symo Hybrid
• Operating instructions Fronius Symo Hybrid
• Installation Instructions MyReserve SwitchBox (by enwitec)
DATE: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH | PAGE 29

13 Technical data
Technical data
MyReserve Backup Power
Operating voltage / frequency 3 AC 230/400V 50 Hz
Max. power output (in backup mode) 2,0 - 3,5 kW
Phase imbalance max. 2,08 kW
Max. switching time 25 sek
SwitchBox
Dimensions (WxHxD 338 x 622 x 161 mm
Weight ca 11 kg
Max. fuse size max. 63 A
IP rating IP65
Grid types TN(C)-S/TN-S/TT-Netze
PAGE 30 | Version: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH

14 FaQ
Can the MyReserve Backup Power also be used with clusters?
Yes, the MyReserve Backup Power can be used with a cluster installation under the following res-
trictions.: only ONE Fronius Symo Hybrid inverter can run on emergency power. All other inverters
go out of operation in the event of a power failure.
What do I need to consider when retrofi tting the MyReserve Backup Power?
Retro tting the MyReserve Backup Power is easily feasible. An installed AC sensor can be removed
and replaced by the AC sensor of the SwitchBox.
For an installed MyReserve Command, the power supply must be established via the SwitchBox.
If a Fronius Symo Hybrid is installed, make sure its separate connection cable is plugged into the
SwitchBox.
15 Disposal
The switchbox and all its components must be disposed in accordance with local
regulations for the disposal of electronic scrap.
DATE: 07/2019 | Rev. 000 | AZ-TM-PME-1693 | Subject to changes | © 2019 SOLARWATT GmbH | PAGE 31

MYRESERVE
CERTIFIED SAFETY.
HIGHEST EFFICIENCY.
GUARANTEED PERFORMANCE.
Do you have any questions?
Your customer advisor or our technical support will be happy to help you.
SOLARWATT GmbH | Maria-Reiche-Str. 2a | 01109 Dresden | Germany
Tel. [phone]
www.solarwatt.com