FRO­NIUS Galvo 208-240 1.5-1 User manual

/ Perfect Charging / Perfect Welding / Solar Energy
42,0426,0182,EA 011-19122016
Fronius Galvo 208-240:
Symbol Explanations and
Choosing the Location
Notes on Installation and
Connection
Operating Instructions
Inverter for grid-connected photo-
voltaic systems
EN-US

2

3
EN-US
Contents
Symbol Explanations ................................................................................................................................. 5
Explanation of Safety Instructions......................................................................................................... 5
Explanation of Symbols – Selecting a Location .................................................................................... 5
Symbol Explanations – Installation Position ......................................................................................... 7
Choosing the Location ............................................................................................................................... 9
Intended Use......................................................................................................................................... 9
Choosing the Location (General) .......................................................................................................... 9
Installation information ............................................................................................................................... 10
Selecting dowels and screws................................................................................................................ 10
Screw Recommendation....................................................................................................................... 10
Attaching the Wall Bracket.................................................................................................................... 10
Installing the Inverter on a Mast............................................................................................................ 11
Notes on the Knockouts............................................................................................................................. 12
General ................................................................................................................................................. 12
Removing/Drilling out a Knockout......................................................................................................... 12
Suitable Grids ............................................................................................................................................ 13
Suitable Grids ....................................................................................................................................... 13
Notes on connection area .......................................................................................................................... 14
Permitted Cables .................................................................................................................................. 14
Connecting Aluminum Cables............................................................................................................... 14
Notes on grid connection ........................................................................................................................... 15
Monitoring the Grid ............................................................................................................................... 15
Grid Connection .................................................................................................................................... 15
Maximum AC-side Overcurrent Protection ........................................................................................... 16
Additional external AC and/or DC disconnect....................................................................................... 16
Notes on Solar Module Grounding in the Inverter...................................................................................... 17
Notes on Solar Module Grounding in the Inverter.................................................................................17
Notes on DC Connection ........................................................................................................................... 19
General Information about Solar Modules ............................................................................................ 19
Inverter DC Connection ........................................................................................................................ 19
Notes on Laying Data Communication Cables .......................................................................................... 20
Laying Data Communication Cables..................................................................................................... 20
Notes on Clipping the Inverter into the Wall Bracket ................................................................................. 21
Clipping the Inverter into the Wall Bracket............................................................................................ 21
Notes on Anti-theft device.......................................................................................................................... 22
Anti-Theft Device .................................................................................................................................. 22
Notes on Software Updates ....................................................................................................................... 24
Notes on Software Updates .................................................................................................................. 24
USB Stick as a Data Logger and for Updating Inverter Software .............................................................. 25
USB stick as a data logger.................................................................................................................... 25
Data on the USB stick........................................................................................................................... 25
Data Quantity and Memory Capacity .................................................................................................... 26
Buffer Memory ...................................................................................................................................... 27
Suitable USB Sticks .............................................................................................................................. 27
USB Stick for Updating Inverter Software............................................................................................. 28
Removing the USB Stick....................................................................................................................... 28
Notes on Maintenance ............................................................................................................................... 29
Maintenance ......................................................................................................................................... 29
Cleaning................................................................................................................................................ 29
Serial Number Sticker for Customer Use................................................................................................... 30
Serial Number Sticker for Customer Use.............................................................................................. 30

4

5
EN-US
Symbol Explanations
Explanation of
Safety Instruc-
tions
If you see any of the symbols depicted in the "Safety Rules," special care is required.
Explanation of
Symbols – Select-
ing a Location
DANGER! Indicates an immediate danger. Death or serious injury may result if
appropriate precautions are not taken.
WARNING! Indicates a possibly dangerous situation. Death or serious injury may
result if appropriate precautions are not taken.
CAUTION! Indicates a situation where damage or injury could occur. Minor injury
or damage to property may result if appropriate precautions are not taken.
NOTE! Indicates the possibility of flawed results and damage to the equipment.
IMPORTANT! Indicates tips for correct operation and other particularly useful information.
It does not indicate a potentially damaging or dangerous situation.
The inverter is suitable for indoor installation.
The inverter is suitable for outdoor installation.
Because of its NEMA4X protection class, the inverter is not susceptible
to hose water on any side and can also be operated in moist environ-
ments.
In order to keep inverter heating as low as possible, the inverter should
not be exposed to direct sunlight. Ideally, the inverter should be installed
in a protected location, e.g., near the solar modules or under an over-
hanging roof.
NEMA4X

6
Altitude above sea level: up to 11,482 ft. (3500 m)
IMPORTANT! The inverter must not be installed or operated above an
altitude of 11,482 ft. (3500 m).
The max. permissible DC voltage of the inverter depends on the altitude:
- 0 - 6561 ft. (0 - 2000 m) ... UDC max = 550 V
- > 6561 - 8202 ft. (> 2000–2500 m) ... UDC max = 540 V
- > 8202 - 9842 ft. (> 2500–3000 m) ... UDC max = 480 V
- > 9842–11482 ft. (> 3000–3500 m) ... UDC max = 430 V
The output power reduces when the device temperature is too high, and
this may occur earlier than normal at increased altitudes.
Do not install the inverter:
- where it may be exposed to ammonia, corrosive gases, acids or
salts
(e.g., fertilizer storage areas, vent openings for livestock stables,
chemical plants, tanneries, etc.)
During certain operation phases the inverter may produce a slight noise.
For this reason it should not be installed in an occupied living area.
Do not install the inverter in:
- areas where there is an increased risk of accidents, e.g., from farm
animals (horses, cattle, sheep, pigs, etc.)
- stables or adjoining areas
- storage areas for hay, straw, chaff, animal feed, fertilizers, etc.
Do not install the inverter in:
- dusty rooms and environments
- rooms and areas with large amounts of conducting dust particles
(e.g., iron filings)
Do not install the inverter in:
- greenhouses
- storage or processing areas for fruit, vegetables, or viniculture prod-
ucts
- areas used in the preparation of grain, green fodder, or animal feeds
max.
11482 ft.
3500 m
> 11482 ft.
> 3500 m
UDC max
550 V
0 - 6561 ft.
(0 - 2000 m)
> 8202 - 9842 ft.
(> 2500 - 3000 m)
> 6561 - 8202 ft.
(> 2000 - 2500 m)
> 9842 - 11482 ft.
(> 3000 - 3500 m)
ft. (m)
540 V
480 V
430 V
NH3

7
EN-US
Symbol Explana-
tions – Installa-
tion Position
The inverter is suitable for vertical installation on a vertical wall or pillar.
The inverter is suitable for horizontal installation.
The inverter is suitable for installation on an inclined surface.
Do not install the inverter on an inclined surface with the connection
sockets facing upwards.
Do not install the inverter in a sloping position on a vertical wall or pillar.
Do not install the inverter in a horizontal position on a vertical wall or pil-
lar.
Do not install the inverter on a vertical wall or pillar with the connection
sockets facing upwards.
Do not install the inverter so that it is overhanging with the connection
sockets facing upwards.

8
Do not install the inverter so that it is overhanging with the connection
sockets facing downwards.
Do not install the inverter on the ceiling.

9
EN-US
Choosing the Location
Intended Use The solar inverter is designed exclusively to convert direct current from solar modules into
alternating current and feed this power into the public grid.
The following are deemed not to be in conformity with its intended purpose:
- utilization for any other purpose, or in any other manner
- alterations to the inverter that are not expressly recommended by Fronius
- installation of components that are not expressly recommended or sold by Fronius.
The manufacturer is not responsible for any damage resulting from improper use.
All warranty claims are considered void in such cases.
Proper use also means
- carefully reading and obeying all the instructions and safety and danger notices in the
operating instructions
- carrying out all the specified inspection and servicing work
- installation as per operating instructions.
When configuring the photovoltaic system, make sure that all photovoltaic system compo-
nents are operating completely within their permitted operating range.
All measures recommended by the solar module manufacturer for maintaining solar mod-
ule properties must be followed.
Utility company regulations regarding grid power feed must be followed.
Choosing the Lo-
cation (General)
Please note the following criteria when choosing a location for the inverter:
Only install on a solid surface.
Max. ambient temperatures:
-40°F – +122°F
(-40°C – +50°C)
Relative humidity:
0–100%
The air flow direction within the
inverter is from the left to the top
(cold air intake on the left, hot air
outflow at the top).
The exhaust air can reach a tem-
perature of 158°F (70° C).
When installing the inverter in a switch cabinet or similar closed environment, it is neces-
sary to make sure that the hot air that develops will be dissipated by forced-air ventilation.
If you wish to install the inverter on the outer walls of cattle stables, it is important to keep
a minimum clearance of 2 m between all sides of the inverter and air vents and other
openings.
The place of installation should not be exposed to ammonia, corrosive gases, salts, or
acids.
8 in.
200 mm
4 in.
100 mm
6 in.
150 mm
-40 °F - +122 °F
-40 °C - +50 °C
0 - 100 %

10
Installation information
Selecting dowels
and screws
Screw Recom-
mendation
To install the inverter, the manufacturer recommends using steel or aluminum screws with
a diameter of 0.2–0.3 in. (6–8 mm).
Attaching the
Wall Bracket
IMPORTANT! Depending on the surface, different mounting materials may be required for
installing the wall bracket. These mounting materials are not part of the scope of delivery
for the inverter. The installer is responsible for selecting the proper mounting materials.
NOTE! When attaching the wall bracket to the wall or a pillar, make sure that the
wall bracket is not warped or deformed.

11
EN-US
Installing the In-
verter on a Mast
Example of a mast fixing set
When installing the inverter on a mast or a
vertical pillar, Fronius recommends using a
commercially available mast fixing set.
The mast fixing set allows the inverter to be
installed on a round or square mast with dif-
ferent cross sections.
Fronius Galvo 208-240
Installation Help
?

12
Notes on the Knockouts
General The wall bracket contains several knockouts of different sizes. When knocked out, the
openings are used for the inputs of various cables:
1/2 in. for data communication cables (DATCOM)
3/4 in. for AC and DC cables
* Depending on the local authority, a ground stake (GET) may be required.
The cable for the ground stake can be passed through an opening on the bottom
of the wall bracket designed for this purpose.
IMPORTANT! The knockouts on the back of the wall bracket are made from metal.
Removing/Drill-
ing out a Knock-
out
IMPORTANT! The knockouts on the side and bottom of the wall bracket may be broken
out either with a hammer and screwdriver or with a step drill.
The knockouts at the back should only be removed with a step drill.
CAUTION! Danger of short circuit from loose metal parts from knockouts. Loose
metal parts in the inverter may cause short circuits when the inverter is powered
up. When removing knockouts, make sure that
- no loose metal parts fall into the inverter connection area
- any metal pieces that do fall into the connection area are removed immedi-
ately.
When knocking/drilling out the knockouts wear suitable safety gog-
gles.
When using a hammer and screwdriver, only remove knockouts from
the inside out.
When drilling out the knockouts, only use a suitable step drill.
Do not use a spiral drill.
When using a step drill, only remove knockouts from the outside in.
When drilling out with a step drill, take care not to damage the DC dis-
connector or the AC/DC connection block.
When drilling out the knockouts on the back, lay the wall bracket on
an even surface with the back facing upwards so that filings and piec-
es of metal can fall out of the wall bracket.
Attach corresponding conduits to all knocked/drilled out knockouts.
When installing outside, only use watertight conduits and conduit fit-
tings.
Conduits and conduit fittings are not part of the scope of supply for
the inverter.
*

13
EN-US
Suitable Grids
Suitable Grids Inverters can be operated on the following grids:
- 208 V Delta, without neutral conductor
- 208 V Delta: 120 V WYE, with neutral conductor
- 220 V Delta, without neutral conductor
- 220 V Delta: 127 V WYE, with neutral conductor
- 240 V Delta, without neutral conductor
- 240 V: 120 V WYE, with neutral conductor
- 240 V: 120 V split phase, with neutral conductor

14
Notes on connection area
Permitted Cables Cables with the following structure can be connected to the AC and DC terminals of the
inverter:
Connecting Alu-
minum Cables
The terminals are designed for connecting single-wire, round aluminum cables. The follow-
ing points must be taken into account when connecting aluminum cables due to the non-
conducting oxide layer of aluminum:
- reduced rated currents for aluminum cables
- the connection requirements listed below.
Connection Requirements:
Carefully clean off the oxide layer of the stripped end of the cable, e.g., using a knife.
IMPORTANT! Do not use brushes, files, or sandpaper; aluminum particles may get stuck
and can transfer to other cables.
After removing the oxide layer of the cable end, rub in a neutral grease, e.g., acid-free
and alkali-free Vaseline.
Then immediately connect it to the terminal.
Repeat the steps above whenever the cable is disconnected and then reconnected.
- Copper or aluminum: round, single-wire
- Copper: round, fine wire up to conductor class 4
Cable cross sections:
Cu: min. AWG 14 – max. AWG 6
Al: AWG 6
Terminal tightening torque:
15.93 lb-in / 1.33 t. lb. / 1.8 Nm
Cu / Al Cu
max. Class 4
NOTE! Take into account local specifications when configuring cable cross sec-
tions.
1
2
3

15
EN-US
Notes on grid connection
Monitoring the
Grid
Grid Connection
IMPORTANT! The GND ground conductor of the AC cable must be laid so that this is the
last to be disconnected.
Cut GND ground conductors longer, for example, and make them into a loop.
If AC cables are laid over the shaft of the
DC main switch, or across the DC main
switch connection block, they could be da-
maged when the inverter swivels in, or the
inverter could be prevented from swiveling
in.
IMPORTANT! Do not lay the AC cable over
the DC main switch or across the DC main
switch connection block.
Example: AC cable
If long AC or DC cables are laid in the
connection area in cable loops, fix the cab-
les to the lugs designed for this purpose on
the top and bottom of the connection block
using cable ties.
IMPORTANT! The resistance in the leads to the AC-side connection terminals must be as
low as possible for optimal functioning of grid monitoring.
NOTE! In order to ensure a proper ground connection, all three GND ground ter-
minals must be tightened with the specified torque during installation.
NOTE! When connecting the AC cable to the AC terminal, create loops of min.
4 in. (102 mm) with the AC cables.

16
Maximum AC-
side Overcurrent
Protection
Additional exter-
nal AC and/or DC
disconnect
Depending on the installation, an additional external AC and/or DC disconnect may be re-
quired if the inverter is installed in a location not easily accessible to utility or fire personnel.
Contact your local authorities for additional information.
AC ~
max. 20 A
Inverter Number of
phases
Max. output Max. protection
Fronius Galvo 208-240 1.5-1 1 / 2 1500 W 20 A
Fronius Galvo 208-240 2.0-1 1 / 2 2000 W 20 A
Fronius Galvo 208-240 2.5-1 1 / 2 2500 W 20 A
Fronius Galvo 208-240 3.1-1 1 / 2 3100 W 20 A

17
EN-US
Notes on Solar Module Grounding in the Inverter
Notes on Solar
Module Ground-
ing in the Inverter
The inverter comes with a GFDI fuse for ne-
gatively grounded solar modules as stan-
dard.
CAUTION with ungrounded solar modules!
For ungrounded solar modules:
- remove the GFDI fuse
- Adjust the ground settings in the BA-
SIC menu.
Fuse holder for solar module ground at the negative
pole
The fuse holder for grounding the solar mo-
dule is located on the back of the inverter.
The inverter can also be operated with solar modules, which require grounding at the pos-
itive pole.
IMPORTANT! The solar module is not grounded at the positive pole via the fuse in the in-
verter, but must be grounded via a separate fuse outside of the inverter. The GFDI moni-
toring of the inverter remains constant.
+
-
DC = (+)
DC = (-)
N
GND
=~ =~
L1
L2
*
* GFDI Fuse, 1 A / 600 V / 41,0007,0187 (standard)
WARNING! An electric shock can be fatal. Danger of residual voltage from the
capacitors.
When removing the GFDI fuse following commissioning of the inverter, wait until
the capacitors have discharged. Discharge takes 3 minutes.

18
Solar module ground at positive pole
For solar modules ground at the positive
pole:
- Remove GFDI fuse from the inverter.
- Mount the GFDI fuse outside of the in-
verter.
- Adjust the ground settings in the BA-
SIC menu.
DC = (+)
DC = (-)
N
GND
=~ =
L1
L2
DC = (+)
DC = (-)
=~ =~
N
GND
L1
L2
Solar modules ground at the negative
pole,
ungrounded solar modules
NEC2014
Solar modules ground at the positive pole NEC2011

19
EN-US
Notes on DC Connection
General Informa-
tion about Solar
Modules
In order to select suitable solar modules and get the most efficient use out of the inverter,
please note the following points:
- The open circuit voltage of the solar modules increases as the temperature decreases
(assuming constant irradiance). The open circuit voltage must not exceed the follow-
ing values depending on the altitude:
0–6561 ft. (0–2000 m) ... UDC max = 550 V
> 6561–8202 ft. (> 2000–2500 m) ... UDC max = 540 V
> 8202–9842 ft. (> 2500–3000 m) ... UDC max = 480 V
> 9842 –11482 ft. (> 3000–3500 m) ... UDC max = 430 V
Open circuit voltage which exceeds the given values will damage the inverter and void
all warranty entitlements.
- Note the temperature coefficients in the solar module data sheet.
- More exact data for sizing the solar modules can be obtained using calculation tools
such as the Fronius Configuration Tool (available at http://www.solarweb.com).
- See NEC table 690.7 for the appropriate code-related voltage adjustment factor for
crystalline silicon modules, or use the manufacturer’s specified voltage coefficient.
Inverter DC Con-
nection
IMPORTANT! Check the polarity and voltage of the solar module strings. The difference
between the individual solar module strings may not exceed 10 V.
If DC cables are laid over the shaft of the
DC main switch, or across the DC main
switch connection block, they could be da-
maged when the inverter swivels in, or the
inverter could be prevented from swiveling
in.
IMPORTANT! Do not lay the DC cable over
the DC main switch or across the DC main
switch connection block.
NOTE! Before connecting solar modules, make sure that the voltage specified by
the manufacturer corresponds to the actual measured voltage.
Note the safety instructions and specifications of the solar module manufacturer
regarding solar module grounding.

20
Notes on Laying Data Communication Cables
Laying Data Com-
munication Ca-
bles
IMPORTANT! Inverters may not be operated with an option card and two broken-out op-
tion card divisions.
In this case, a corresponding blanking cover (42,0405,2020) is optionally available from
Fronius.
IMPORTANT! If data communication cables are to be used in the inverter, please note the
following points:
- provide your own conduits for the data communication cables
- lay the communication cable in the supplied protective hose
- knock out the corresponding opening
- clean the knocked out opening
- insert the supplied cable bushing into the opening (if both openings have been
knocked out, an additional cable bushing 42,0405,2019 is required)
- clip the inverter in the wall bracket
- insert the data communication cable through the cable bushing from the back
- when swiveling the inverter into place, ensure that the cables are not kinked, trapped,
or damaged in any other way do not form any loops with the data communication ca-
bles
- lay data communication cables in the inverter data communication area and connect
to the Solar Net connection sockets "IN" and "OUT,"
insert the termination plugs in the remaining Solar Net connection sockets.