FRO­NIUS Galvo 1.5 User manual

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/ Perfect Charging / Perfect Welding / Solar Energy
42,0426,0171,EN 015-31102019
Fronius Galvo - Installation Installations instructions
Grid-connected inverter
EN

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EN
Contents
Installation location and position ................................................................................................................ 5
Explanation of safety notices ................................................................................................................ 5
Safety.................................................................................................................................................... 5
Proper use/intended purpose................................................................................................................ 6
Explanation of symbols - choice of location.......................................................................................... 7
Explanation of symbols - installation position ....................................................................................... 8
General comments regarding choice of location...................................................................................9
Attaching the Mounting Bracket ................................................................................................................. 11
Safety.................................................................................................................................................... 11
Selecting wall plugs and screws ........................................................................................................... 11
Recommended screws ......................................................................................................................... 11
Opening the inverter ............................................................................................................................. 11
Do not warp or deform the mounting bracket........................................................................................ 12
Fitting the mounting bracket to a wall ................................................................................................... 13
Installing the mounting bracket ............................................................................................................. 13
Mounting the inverter on a mast ........................................................................................................... 14
Fitting the mounting bracket to metal supports..................................................................................... 14
Connecting the inverter to the public grid (AC side) .................................................................................. 15
Safety.................................................................................................................................................... 15
Monitoring the grid ................................................................................................................................ 15
AC terminals ......................................................................................................................................... 16
Type of AC cable .................................................................................................................................. 16
Preparing the aluminium cables for connection.................................................................................... 16
Requirements for the neutral conductor................................................................................................ 17
Connecting the inverter to the public grid (AC)..................................................................................... 17
Routing the AC cables .......................................................................................................................... 17
Maximum fuse rating on alternating current side.................................................................................. 18
Connecting solar module strings to the inverter......................................................................................... 20
Safety.................................................................................................................................................... 20
General information about solar modules............................................................................................. 22
DC terminals ......................................................................................................................................... 22
Connecting aluminium cables............................................................................................................... 23
Solar module strings - checking the polarity and voltage...................................................................... 23
Notes regarding dummy devices .......................................................................................................... 23
Inverter DC connection ......................................................................................................................... 24
DC cable routing ................................................................................................................................... 25
Grounding the solar modules in the inverter .............................................................................................. 26
General ................................................................................................................................................. 26
Solar Module Ground at Negative Pole with Fuse................................................................................ 27
Configuring the inverter for grounded solar modules............................................................................ 27
Data communication .................................................................................................................................. 28
Routing data communication cables..................................................................................................... 28
Installing the Datamanager in the inverter ............................................................................................ 28
Attaching the inverter to the mounting bracket .......................................................................................... 31
Attaching the inverter to the mounting bracket ..................................................................................... 31
Starting for the first time............................................................................................................................. 33
Starting the inverter for the first time..................................................................................................... 33
Notes regarding software updates ............................................................................................................. 35
Notes regarding software updates........................................................................................................ 35
USB Stick as a Data Logger and for Updating Inverter Software .............................................................. 36
USB flash drive as a datalogger ........................................................................................................... 36
Data on the USB stick........................................................................................................................... 36
Data volume and storage capacity........................................................................................................ 37
Buffer memory ...................................................................................................................................... 38
Suitable USB flash drives ..................................................................................................................... 38
USB stick for updating the inverter software......................................................................................... 39
Remove USB stick................................................................................................................................ 39
Notes regarding maintenance.................................................................................................................... 40
Maintenance ......................................................................................................................................... 40
Cleaning................................................................................................................................................ 40

4
Australian cable protection hoses .............................................................................................................. 41
Seal cable protection hoses tightly ....................................................................................................... 41
Seal Conduits........................................................................................................................................ 41
Serial Number Sticker for Customer Use................................................................................................... 42
Serial number sticker for customer use ................................................................................................ 42

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Installation location and position
Explanation of
safety notices DANGER!
Indicates immediate danger.
►If not avoided, death or serious injury will result.
WARNING!
Indicates a potentially hazardous situation.
►If not avoided, death or serious injury may result.
CAUTION!
Indicates a situation where damage or injury could occur.
►If not avoided, minor injury and/or damage to property may result.
NOTE!
Indicates a risk of flawed results and possible damage to the equipment.
IMPORTANT!
Indicates tips for correct operation and other particularly useful information.
This does not indicate a potentially hazardous situation.
If you see any of the symbols depicted in the "Safety rules" chapter, special care is re-
quired.
Safety WARNING!
Danger due to incorrect operation and incorrectly performed work.
This can result in serious injury and damage to property.
►Only qualified staff are authorised to commission your inverter and only within the
scope of the respective technical regulations.
►Read the Installation and Operating Instructions before installing and commissioning
the equipment.
WARNING!
Danger due to work that has been carried out incorrectly.
This may result in serious injury and damage to property.
►A surge protective device must only ever be installed and connected by a qualified
electrical engineer.
►Follow the safety rules.
►Ensure that both the AC side and the DC side of the inverter are de-energised before
carrying out any installation and connection work.
Fire prevention

6
CAUTION!
Danger due to poor or unprofessional installation.
This may result in damage to inverters and other live
photovoltaic system components.
Poor or unprofessional installation can cause overheat-
ing of cables and terminal connections and result in
arcs. These can cause heat damage, which in turn may
lead to fires.
Observe the following when connecting AC and DC ca-
bles:
►Tighten all terminals to the torque specified in the
Operating Instructions
►Tighten all grounding terminals (PE / GND), includ-
ing free ones, to the torque specified in the Operat-
ing Instructions
►Do not overload cables
►Check cables for damage and verify that they are laid correctly
►Take note of the safety instructions, Operating Instructions and any local connection
regulations
►Using fastening screws, always screw the inverter firmly to the mounting bracket to the
torque specified in the Operating Instructions.
►Ensure that the fastening screws are tight before starting the inverter!
Note! Fronius will not accept any costs associated with production downtimes, installer
costs, etc., that may arise as the result of a detected arc and its consequences. Fronius
accepts no liability for fires that can occur despite the presence of the integrated arc detec-
tion/extinguishing system (e.g. fires caused by a parallel arc).
Note! After an arc has been detected, the entire photovoltaic system must be checked for
possible damage before resetting the inverter.
Observe the manufacturer's connection, Installation and Operating Instructions at all times.
To reduce the hazard potential to a minimum, perform all installation and connection work
carefully according to the instructions and regulations.
Refer to the device Installation Instructions for the tightening torques to be used at the rel-
evant terminal connections.
Proper use/in-
tended purpose
The inverter is intended exclusively to convert direct current from solar modules into alter-
nating current and to feed this into the public grid.
Utilisation not in accordance with the intended purpose comprises:
- Any use above and beyond this purpose
- Making any modifications to the inverter that have not been expressly approved by
Fronius
- the installation of components that are not distributed or expressly approved by Froni-
us.
Fronius shall not be liable for any damage resulting from such action.
No warranty claims will be entertained.
Proper use also includes:
- Carefully reading and obeying all the instructions and all the safety and danger notices
in the Operating Instructions and Installation Instructions
- Performing all stipulated maintenance work
- Installation as specified in the Installation Instructions
3
2
2.5 Nm
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EN
When designing the photovoltaic system, ensure that all components are operated within
their permitted operating ranges at all times.
Observe all the measures recommended by the solar module manufacturer to ensure that
the solar module retains its properties in the long term.
Obey the regulations of the power supply company regarding connection methods and en-
ergy fed into the grid.
Explanation of
symbols - choice
of location The inverter is suitable for installation indoors.
The inverter is suitable for installation outdoors.
Its IP 65 degree of protection means that the inverter is resistant to water
jets from any direction and can also be used in damp environments.
In order to minimise the heating up of the inverter, do not expose it to di-
rect insolation. Install the inverter in a protected location, e.g. in the vicin-
ity of the solar modules or beneath the eaves.
Can be used at altitudes of up to 2000 m
IMPORTANT! The inverter must not be installed or used at altitudes
above 2000 m.
Do not install the inverter in:
- areas where ammonia, corrosive vapours, acids or salts are present
(e.g. fertiliser stores, ventilation openings from cattle sheds, chemi-
cal plants, tanneries, etc.)
IP 65
max.
2000 m
> 2000 m
NH3

8
Explanation of
symbols - instal-
lation position
As the inverter generates low levels of noise under certain operating con-
ditions, it should not be installed close to living areas.
Do not install the inverter in:
- places where there is an increased risk of damage from farm ani-
mals (horses, cattle, sheep, pigs, etc.)
- stables or adjoining areas
- storage areas for hay, straw, chaff, animal feed, fertilisers, etc.
All inverters are designed to be dust-tight. However, in areas with a
heavy build-up of dust, the thermal efficiency may still be impaired by
dust forming on the cooling surfaces. Regular cleaning is necessary in
such situations. It is therefore not recommended to mount the device in
rooms or areas in which a heavy build-up of dust is expected.
Do not install the inverter in:
- greenhouses
- storage or processing areas for fruit, vegetables or wine-growing
products
- places used to prepare grain, green fodder or animal feeds
The inverter is designed to be installed vertically on a vertical wall or pil-
lar.
The inverter is suitable for horizontal installation.
The inverter is suitable for installation on a sloping surface.
Do not install the inverter on a sloping surface with its connection sockets
facing upwards.

9
EN
General com-
ments regarding
choice of location
The following criteria should be taken into account when choosing a location for the invert-
er:
Do not install the inverter at an angle on a vertical wall or pillar.
Do not install the inverter horizontally on a vertical wall or pillar.
Do not install the inverter on a vertical wall or pillar with its connection
sockets facing upwards.
Do not install the inverter such that it overhangs with its connection sock-
ets facing upwards.
Do not install the inverter such that it overhangs with its connection sock-
ets facing downwards.
Do not install the inverter on the ceiling.
Install only on a solid, non-flammable surface
Max. ambient temperatures:
-25 °C / +50 °C
Relative humidity:
0–100%
The airflow within the inverter is
from the left to the top (cold air
taken in from the left, hot air dis-
sipated out of the top).
The exhaust air can reach a tem-
perature of 70 °C.
100 mm 100 mm
150 mm
-25 °C - +50 °C
0 - 100 %

10
The environmental conditions for the inverter must be fulfilled at the installation site.
If the inverter is to be installed on the outer wall of a cattle shed, maintain a minimum all-
round clearance of 2 m between the inverter and all ventilation and other openings in the
building.
The installation location must not be exposed to ammonia, corrosive vapours, salts or ac-
ids.

11
EN
Attaching the Mounting Bracket
Safety WARNING!
Danger due to residual voltage in capacitors.
This may result in an electric shock.
►Wait for the capacitors to discharge. The discharge time is five minutes.
CAUTION!
Danger due to dirt or water on the terminals and contacts of the inverter's connec-
tion area.
This may result in damage to the inverter.
►When drilling, ensure that terminals and contacts in the connection area do not be-
come dirty or wet.
►The mounting bracket without a power stage set does not conform to the protection
class of the inverter as a whole, and therefore must not be installed without a power
stage set.
►The mounting bracket should be protected from dirt and moisture during installation.
Note! Degree of protection IP 65 is only applicable if
- the inverter is placed in the mounting bracket and permanently attached using
screws
- the cover for the data communication area is permanently attached to the inverter with
screws.
Degree of protection IP 20 applies to the mounting bracket with no inverter and the venting
duct.
Selecting wall
plugs and screws
Important! Different fixings may be required to fit the mounting bracket depending on the
type of underlying surface. Fixings are therefore not included in the scope of supply of the
inverter. The installer is responsible for selecting the right type of fixing.
Recommended
screws
To install the inverter, the manufacturer recommends the use of steel or aluminium screws
with a diameter of 6 - 8 mm.
Opening the in-
verter WARNING!
Danger from inadequate ground conductor connection.
This can result in serious injury and damage to property.
►The housing screws provide a suitable ground conductor connection for grounding the
housing and must NOT be replaced by any other screws that do not provide a reliable
ground conductor connection.

12
1 2
3 4
Do not warp or
deform the
mounting bracket
Note! When fitting the mounting bracket to the wall, ensure that the mounting bracket does
not become warped or deformed.
12
3 4

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EN
Fitting the mount-
ing bracket to a
wall
1
Tip: Install the inverter so that its display is at eye level
2
3
Note! When mounting the mounting bra-
cket on the wall, ensure that the mounting
bracket does not become warped or defor-
med.
Installing the
mounting bracket
1 2
12
3
2x TX25
1
2
1
2

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3
Mounting the in-
verter on a mast
Example of a mast fixing kit
When mounting the inverter on a mast or a
vertical carrier, Fronius recommends the
use of a standard mast fixing kit.
This kit enables the inverter to be mounted
on round or rectangular masts with various
cross-sections.
Fitting the mount-
ing bracket to
metal supports
The mounting bracket must be secured to at least four points.
1
3
Fronius Galvo
Installation Help
?
min. 4x
1

15
EN
Connecting the inverter to the public grid (AC side)
Safety WARNING!
Incorrect operation or poorly executed work can cause serious injury or damage.
Only qualified staff are authorised to commission your inverter and only within the scope
of the respective technical regulations. Read the Installation and Operating Instructions be-
fore installing and commissioning the equipment.
WARNING!
An electric shock can be fatal.
Danger due to grid voltage and DC voltage from solar modules that are exposed to light.
►Ensure that both the AC side and the DC side of the inverter are de-energised before
carrying out any connection work.
►Only an authorised electrical engineer is permitted to connect this equipment to the
public grid.
WARNING!
An electric shock can be fatal.
Danger due to grid voltage and DC voltage from solar modules.
►The DC main switch is only to be used to de-energise the power stage set. The con-
nection area is still live when the DC main switch is switched off.
►Ensure that the power stage set and connection area are disconnected from one an-
other before carrying out any maintenance or service tasks.
►The power stage set is only to be disconnected from the mounting bracket once it is
de-energised.
►Maintenance and servicing in the power stage set of the inverter must only be carried
out by Fronius-trained service technicians.
CAUTION!
Risk of damage to the inverter as the result of incorrectly tightened terminals.
Incorrectly tightened terminals can cause heat damage to the inverter that may result in a
fire. When connecting AC and DC cables, ensure that all the terminals are tightened to the
specified torque.
IMPORTANT! To ensure a proper ground connection, all three PE grounding terminals
must be tightened to the specified torque when the inverter is installed.
Monitoring the
grid
To provide the best possible grid monitoring, the resistance in the leads to the AC-side ter-
minals should be as low as possible.

16
AC terminals PE Ground conductor / grounding
L1 Phase conductor
N Neutral conductor
Max. cross-section of each conductor cab-
le:
16 mm²
Min. cross-section of each conductor cable:
in accordance with the fuse rating on the
AC side, but at least 2.5 mm²
The AC cables can be connected to the AC
terminals without ferrules.
IMPORTANT! When using ferrules for AC cables with a cross-section of 16 mm², the fer-
rules must be crimped with a right-angled cross-section.
The use of ferrules with insulating collars is only permitted up to a max. cable cross-section
of 10 mm².
Type of AC cable The following types of AC cable can be connected to the AC terminals of the inverter:
Preparing the alu-
minium cables for
connection
The AC-side terminals are suitable for connecting single-wire, round aluminium cables. Be-
cause of the formation of a non-conductive oxide layer due to the reaction of aluminium
with air, the following points must be considered when connecting aluminium cables:
- the reduced rated currents for aluminium cables
- the connection conditions listed below
Always follow the cable manufacturer instructions when using aluminium cables.
When designing cable cross-sections, take local regulations into account.
Connection conditions:
Carefully clean the oxide layer from the bare end of the cable by scraping it, e.g. with
a knife
IMPORTANT! Do not use brushes, files or emery paper, as the aluminium particles get
trapped and can be transferred to other conductors.
Once the oxide layer is removed, rub the end of the cable with a neutral grease, such
as non-acidic and non-alkaline Vaseline
Immediately connect the cable end to the terminal
IMPORTANT!Repeat the procedure if the cable has been disconnected and is to be re-
connected.
min. 2,5 mm² - max. 16 mm²
PE
PE
PE
- copper or aluminium: round, single wire
- Copper: round, finely stranded up to conductor category 4
Cu / Al Cu
1
2
3

17
EN
Requirements for
the neutral con-
ductor
Note!
- Ensure that the grid neutral conductor is grounded. This may not be the case for IT
grids (insulated grids with no grounding); it will then not be possible to use the inverter.
- In order to use the inverter, the neutral conductor must be connected. A neutral con-
ductor that is too small may adversely affect the inverter feeding energy into the grid.
The neutral conductor must therefore be the same size as the other live conductors.
Connecting the
inverter to the
public grid (AC)
1 2
3
Note! Observe the torque values marked on the side
underneath the terminals.
4
Routing the AC
cables
Note!
- Form loops with the AC cables when connecting them to the AC terminals.
- When securing the AC cables using a metric screw joint, ensure that the loops do not
protrude beyond the connection area.
Otherwise, under certain circumstances it may no longer be possible to close the in-
verter.
IMPORTANT! The PE ground conductor of the AC cable must be laid in such a way that it
is the last to be disconnected in the event that the strain-relief device should fail.
This can be ensured, for example, by making it somewhat longer and by laying it in a loop.
If AC cables are laid over the shaft of the DC main switch or across the connection block
of the DC main switch, they may be damaged when the inverter is swung in, or they may
even prevent the inverter from being swung in.
1
> 200 mm
15 mm
AC ~
OFF
PE
> 250 mm
PE
Cu / Al Cu
max. Class 4
1
PE
PE
PE
2
PE
PE
PE
Torque (Nm / lbf.in.)
→ see printing near
wire terminal
3
7,5 Nm
PE
PE
PE
4

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IMPORTANT! Do not lay AC cables over the shaft of the DC main switch or across the con-
nection block of the DC main switch.
If overlength AC or DC cables are to be laid
in loops in the connection area, attach the
cables with cable ties to the eyelets provi-
ded on the top and bottom of the connecti-
on block.
Maximum fuse
rating on alternat-
ing current side
PE
PE
PE
PE
PE
PE
max. C 25A
Inverter Phases Max. output Max. fuse rating
Fronius Galvo 1.5 1 1500 W 1 x C 25 A
Fronius Galvo 2.0 1 2000 W 1 x C 25 A
Fronius Galvo 2.5 1 2500 W 1 x C 25 A
Fronius Galvo 3.0 1 3000 W 1 x C 25 A
Fronius Galvo 3.1 1 3100 W 1 x C 25 A

19
EN
NOTE!
Local regulations, the distribution system operator or other factors may require a re-
sidual current protective device (RCD) in the mains line.
For this situation, a type A residual current protective device is generally adequate. In par-
ticular cases, and depending on local factors, however, the type A residual current protec-
tive device may trip at the wrong time.
For this reason, Fronius recommends that an RCD suitable for frequency converters be
used.

20
Connecting solar module strings to the inverter
Safety WARNING!
Danger due to incorrect operation and incorrectly performed work.
This can result in serious injury and damage to property.
►Only qualified staff are authorised to commission your inverter and only within the
scope of the respective technical regulations.
►Read the Installation and Operating Instructions before installing and commissioning
the equipment.
WARNING!
Danger due to grid voltage and DC voltage from solar modules that are exposed to
light.
This may result in an electric shock.
►Ensure that both the AC side and the DC side of the inverter are de-energised before
carrying out any connection work.
►Only an authorised electrical engineer is permitted to connect this equipment to the
public grid.
WARNING!
Risk of electric shock if the solar module ground is not grounded or is not grounded
properly.
An electric shock can be fatal.
►To comply with IEC 62109-2:2011, any grounding required by the manufacturer of the
solar module ground within the inverter must only be carried out via the specified fuse.
WARNING!
Danger from DC voltage in solar modules.
An electric shock can be fatal. The inverter's insulation monitoring is deactivated when the
solar modules are grounded.
►Ensure that grounded solar modules are assembled so that they are insulated accord-
ing to Protection Class II
►Place the relevant safety sticker in a clearly visible place on the photovoltaic system
►Configure the inverter so that an error message is displayed if the fuse trips.
WARNING!
Danger due to grid voltage and DC voltage from solar modules.
This may result in an electric shock.
►The DC main switch is only to be used to de-energise the power stage set. The con-
nection area is still live when the DC main switch is switched off.
►Ensure that the power stage set and connection area are disconnected from one an-
other before carrying out any maintenance or service tasks.
►The power stage set, which is enclosed in a separate housing, must only be discon-
nected from the connection area when in a de-energized state.
►Maintenance and servicing in the power stage set of the inverter must only be carried
out by Fronius-trained service technicians.