Fronius Symo Series, 12.0-3 208-240, 10.0-3 480, 12.5-3 480, 15.0-3 480 Installation Instructions Manual
...
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Fronius Symo - Installation
10.0-3 208-240
12.0-3 208-240
10.0-3 480
12.5-3 480
15.0-3 480
15.0-3 208
17.5-3 480
20.0-3 480
22.7-3 480
24.0-3 480
Installation Instructions
Inverter for grid-connected photo-
EN-US
voltaic systems
42,0426,0202,EA 011-29072019
2
Contents
Location selection and installation position................................................................................................ 5
Safety Instructions Explanation............................................................................................................. 5
Safety.................................................................................................................................................... 5
Intended Use......................................................................................................................................... 6
Location Selection................................................................................................................................. 7
Installation position of the inverter ........................................................................................................ 8
General Location Selection................................................................................................................... 9
Example: Installation of several inverters ............................................................................................. 10
Do not ground the solar modules.......................................................................................................... 10
Power Line Communication (PLC) Transmitter .................................................................................... 10
Preparation 11
Attaching the Mounting Bracket ................................................................................................................. 13
Safety.................................................................................................................................................... 13
Selecting Dowels and Screws............................................................................................................... 13
Screw recommendation ........................................................................................................................ 13
Opening the Inverter ............................................................................................................................. 13
Installing the Mounting Bracket on a Wall............................................................................................. 14
Installing the Mounting Bracket on a Mast or Beam ............................................................................. 15
Attaching the mounting bracket to a metal carrier ................................................................................ 15
Do not warp or deform the mounting bracket........................................................................................ 16
Knockouts .................................................................................................................................................. 17
Safety.................................................................................................................................................... 17
General ................................................................................................................................................. 17
Knocking or Drilling Out Knockouts ...................................................................................................... 18
EN-US
AC~ 21
Suitable Grids ............................................................................................................................................ 23
Connecting the inverter to the public grid (AC side) .................................................................................. 24
Safety.................................................................................................................................................... 24
Permitted Cables .................................................................................................................................. 25
Preparing Aluminum Cables for Connection......................................................................................... 26
Monitoring the grid ................................................................................................................................ 27
Fronius Symo 15.0-3 208 – ferrite ring ................................................................................................. 27
Connecting the Inverter to the Public Grid (AC).................................................................................... 27
Maximum AC fuse protection................................................................................................................ 29
Additional external AC and/or DC disconnect....................................................................................... 30
DC= 31
Notes on the Multi-MPP Tracker inverter................................................................................................... 33
Multi MPP Tracker – Inverter ................................................................................................................ 33
Connecting Solar Module Strings to the Inverter ....................................................................................... 34
Safety.................................................................................................................................................... 34
String Fuses.......................................................................................................................................... 35
Permitted Cables .................................................................................................................................. 36
General Information about Solar Modules ............................................................................................ 38
Connecting Aluminum Cables............................................................................................................... 38
Connecting Solar Module Strings to the Inverter .................................................................................. 39
Laying Solar.Net Cables 41
Data communication .................................................................................................................................. 43
Lay data communication cables............................................................................................................ 43
Installing Datamanager in the Inverter .................................................................................................. 44
Finally... 47
3
Seal Conduits............................................................................................................................................. 49
Clipping the Inverter onto the Mounting Bracket........................................................................................ 50
Clipping the Inverter onto the Mounting Bracket................................................................................... 50
Using for the first time ................................................................................................................................ 53
Using the Inverter for the First Time ..................................................................................................... 53
Options 55
USB Stick as a Data Logger and for Updating Inverter Software .............................................................. 57
USB Flash Drive as a Data Logger....................................................................................................... 57
Data on the USB stick........................................................................................................................... 57
Data Amount and Memory Capacity ..................................................................................................... 58
Buffer Memory ...................................................................................................................................... 59
Suitable USB Thumb Drives ................................................................................................................. 59
USB Stick for Updating Inverter Software............................................................................................. 60
Removing the USB Stick....................................................................................................................... 60
Options....................................................................................................................................................... 61
Options.................................................................................................................................................. 61
OPTION 'ShadeCover'.......................................................................................................................... 61
Service and Maintenance 63
Notes on Maintenance ............................................................................................................................... 65
Maintenance ......................................................................................................................................... 65
Cleaning................................................................................................................................................ 65
4
Location selection and installation position
EN-US
Safety Instructions Explanation
WARNING!
Indicates a potentially 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 a possibility of flawed working results and possible damage to the equipment.
IMPORTANT!
Indicates tips for correct operation and other particularly useful information.
It does not indicate a harmful or dangerous situation.
Please pay special attention when one of the symbols from the "Safety rules" chapter appears in these instructions.
Safety
WARNING!
Danger from incorrect operation and work that is not carried out properly.
This can result in severe personal injury and damage to property.
► Only qualified staff are authorized to commission the inverter and only within the scope
of the respective technical regulations.
► Read the Installation Instructions and Operating Instructions before installation and
commissioning.
WARNING!
Danger from work that is not carried out properly.
This can result in damage to property and severe personal injury.
► The surge protection device should only be installed and connected by licensed elec-
tricians.
► Observe the safety rules!
► Prior to all installation and connection work, disconnect the AC and DC supply to the
inverter.
Fire Prevention
5
CAUTION!
Danger due to faulty or incorrect installation.
This may result in damage to inverters and other current-carrying parts of a photovoltaic system.
Faulty or improper installation may cause overheating
of cables and terminals as well as the formation of arcs.
This could cause thermal damage, which in turn may
lead to fires.
Please note the following when connecting the AC and
3
DC cables:
► Securely tighten all terminals using the proper
torque listed in the Operating Instructions
► Securely tighten all grounding terminals (PE/GND)
2
2.5 Nm
1
using the proper torque listed in the Operating In-
structions, even for free grounding terminals
► Do not overload cables
► Check cables for damage and correct wiring
► Follow all safety instructions, Operating Instructions, and any local connection regula-
tions
► Always secure the inverter to the mounting bracket with fixing screws using the torque
specified in the Operating Instructions.
► Only put the inverter into operation with the fixing screws securely tightened.
Notice! Fronius will not bear any costs for production downtimes, or for installations, etc.,
which may arise due to a detected electric arc and its consequences. Fronius accepts no
liability for fires which may break out despite integrated arc detection/interruption (e.g., due
to a parallel arc).
Notice! Before an inverter can be reset following a detected electric arc, check the entire
affected photovoltaic system for any damage.
The manufacturer's specifications for connection, installation, and operation must be observed. You must carefully follow all installation steps and make all connections in accordance with specifications and regulations to minimize any risk of danger.
The tightening torques for the respective terminals are listed in the Installation Instructions
for the devices.
Intended Use The inverter is designed exclusively to convert direct current from solar modules into alter-
nating current and feed this power into the public grid.
The following are deemed to be not in conformity with its intended purpose:
- Utilization for any other purpose, or in any other manner
- Alternations to the inverter 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 the instructions and all the safety and danger notices in
the Operating and Installation Instructions
- compliance with the maintenance operations
- installation as specified in the Installation Instructions
When configuring the photovoltaic system, make sure that all components are operating
completely within their permitted operating range.
6
All measures recommended by the solar module manufacturer for maintaining solar module properties must be followed.
Location Selection
Follow all grid operator regulations regarding grid power feed and connection methods.
Please note the following criteria when choosing a location for the inverter:
The inverter is suitable for indoor installation.
The inverter is suitable for outdoor installation.
Because of its NEMA 4X protection class, the inverter is not susceptible
to hose water on any side and can also be operated in moist environments. However:
In order to keep inverter heating as low as possible, do not expose the
inverter to direct sunlight. The inverter should be installed in a protected
location, e.g., near the solar modules or under an overhanging roof.
EN-US
10.0-3 - 12.0-3 208-240
ft. (m)
0 - 11154 ft.
(0 - 3400 m)
10.0-3 - 24.0-3 480
ft. (m)
> 9842 - 11154 ft.
(> 3000 - 3400 m)
> 8202 - 9842 ft.
(> 2500 - 3000 m)
> 6561 - 8202 ft.
(> 2000 - 2500 m)
0 - 6561 ft.
(0 - 2000 m)
> 11154 ft.
> 3400 m
NH
3
U
DC max
600 V
U
DC max
850 V
900 V
950 V
1000 V
IMPORTANT! The inverter must not be installed or operated above an
altitude of 11,154 ft. (3400 m).
The maximum permissible DC voltage of the inverter depends on the altitude.
U
at an altitude of:
DCmax
Symo 10.0-3 – 12.0-3 208–240
0 to 11,154 ft ( 0 to 3400 m). = 600 V
Symo 10.0-3 – 24.0-3 480
0 to 6561 ft ( 0 to 2000 m). = 1000 V
6531 to 8202 ft (2000 to 2500 m). = 950 V
8202 to 9842 ft (2500 to 3000 m). = 900 V
9842 to 11,154 ft (3000 to 3400 m). = 850 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)
During certain operating phases the inverter may produce a slight noise.
For this reason, it should not be installed in an occupied living area.
7
Installation position of the inverter
Do not install the inverter in:
- areas where there is an increased risk of accidents from farm animals (horses, cattle, sheep, pigs, etc.)
- Stables or adjoining areas
- storage areas for hay, straw, chaff, animal feed, fertilizers, etc.
The inverter is designed to be dustproof in principle. However, in areas
of high dust accumulation, the cooling surfaces can become dusty, which
can impair the thermal performance. In this case, the dust must be removed regularly. We therefore recommend that installation is not carried
out in areas and environments with high dust accumulation (e.g., iron filings) as this can cause damage to the inverter.
Do not install the inverter in:
- Greenhouses
- Storage or processing areas for fruit, vegetables, or viticulture products
- Areas used in the preparation of grain, green fodder, or animal feeds
The inverter is suitable for vertical installation on a vertical wall or column.
The inverter is suitable for a horizontal installation position.
The inverter is suitable for installation on a sloping surface.
Do not install the inverter on a sloping surface with the connections upwards.
Do not install the inverter in a sloping position on a vertical wall or column.
Do not install the inverter in a horizontal position on a vertical wall or column.
8
Do not install the inverter with the connections upwards on a vertical wall
or column.
Do not install the inverter overhanging with the connections upwards.
Do not install the inverter overhanging with the connections downwards.
Do not install the inverter on the ceiling.
EN-US
General Location
Selection
Please note the following criteria when choosing a location for the inverter:
8 in.
200 mm
4 in.
100 mm
4 in.
100 mm
-40 °F - +140 °F
-40 °C - +60 °C
0 - 100 %
Only install on a solid, non-flammable surface
Max. ambient temperatures: -40 °F/+140 °F (-40 °C/+60 °C)
Relative humidity: 0–100%
The air flow direction within the inverter is from right to top (cold air intake on the right, hot
air outflow at the top). The waste air may reach a temperature of up to 70 °C.
9
When installing the inverter in a switch cabinet or similar closed environment, it is necessary 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.
Example: Installation of several inverters
Do not ground the
solar modules.
Installation example of several inverters
DC = DC = DC =
AC ~ AC ~ AC ~
DATCOM DATCOM
The inverter is designed exclusively for
connection to and use with non-grounded
solar modules. The solar modules must not
be grounded at either the positive or nega-
+
-
tive pole.
Power Line Communication (PLC)
Transmitter
10
+
-
This inverter is equipped with a Power Line Communication (PLC) Transmitter on the DC
side.
The purpose is to provide Rapid Shutdown acc. to NEC Edition 2017 Art. 690.12. The PLC
is implemented according to the Specification "Communication Signal for Rapid Shutdown
- SunSpec Interoperability Specification". Details can be found at www.sunspec.org
To ensure compliance with all regulations applicable in your country and to provide best
reception at the receivers, please follow the recommendations below:
- Keep distance between DC+ and DC- Conductors as close as possible
- Avoid cable loops of excessive cables (coiling).
- Use metallic raceways where possible
- Do not run DC cables from different inverters in the same raceway or cable tray.
Preparation
Attaching the Mounting Bracket
EN-US
Safety
WARNING!
Danger of residual voltage from capacitors.
An electric shock can be fatal.
► Wait until the capacitors have discharged. Discharge takes 5 minutes.
CAUTION!
Danger due to soiling or water on the terminals and contacts in the connection area.
This may result in damage to the inverter.
► When drilling, make sure that terminals and contacts in the connection area do not be-
come soiled or wet.
► The mounting bracket without integrated inverter does not correspond to the degree of
protection according to the data sheet. For this reason do not leave the mounting
bracket exposed to environmental influences without the inserted inverter.
► Protect the mounting bracket from soiling and moisture during installation.
NOTE!
Protection class NEMA4X is only ensured when the inverter is mounted and firmly
screwed into the mounting bracket.
The mounting bracket without inverter and ventilation channel has no NEMA protection.
Selecting Dowels
and Screws
Screw recommendation
Opening the Inverter
Important! Depending on the surface, different mounting materials may be required for in-
stalling the mounting 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.
For the installation of the inverter we recommend steel or aluminum screws with a diameter
of 0.2–0.3 in. (6–8 mm).
WARNING!
Danger due to inadequate ground conductor connection.
This can result in severe personal injury and damage to property.
► The housing screws provide an adequate ground conductor connection for grounding
the housing and should not be replaced under any circumstances by other screws that
do not provide a reliable ground conductor connection.
13
1 2
1
ON
OFF
Lock
3 4
3
2
4
lb
Installing the
Mounting Bracket
on a Wall
The mounting bracket must be secured in at least four places.
1 2
1
2
NO NEMA
ENCLOSURE TYPE
14
3
3
EN-US
Al / St
0.2 - 0.3 in.
(6 - 8 mm)
Installing the
Mounting Bracket
on a Mast or
Beam
Attaching the
mounting bracket to a metal carrier
For installation of the inverter on a mast or
beam, Fronius recommends using the "Pole clamp" (order no. SZ 2584.000) mast
mounting kit from Rittal GmbH.
The kit can be used to mount the inverter on
round or rectangular masts with the following diameters: from 40 to 190 mm
(round mast), from 50 to 150 mm (rectangular mast)
The mounting bracket must be secured in at least four places.
1
1
15
Do not warp or
deform the
mounting bracket
Notice! When attaching the mounting bracket to the wall or to a column, make sure that
the mounting bracket is not warped or deformed.
16
Knockouts
EN-US
Safety
General
NOTE!
When using the cable inlets at the back, take care to seal them according to protection class NEMA4X before operating outdoors.
NOTE!
When installing outdoors, only use waterproof conduit fittings and conduits.
Conduit fittings and conduits are not part of the scope of supply for the inverter.
1/2 in. ... DATCOM
*
*
*
*
3/4 in. - 1 1/4 in. ... AC ~ / DC =
Conduit size
*
1/2 in. / 3/4 in. / 1 in.
Conduit size
**
1/2 in. / 3/4 in. / 1 in. / 1 1/4 in.
*
METAL EMPOSSING
Remove parts fallen
into the connection
area before hanging the
inverter to the wall
bracket!
** **
1 1/4 in. 1 1/4 in. 1 in. 1 in.
*
METAL EMPOSSING
Remove parts fallen
into the connection area before
hanging the inverter to the wall
bracket!
** **
The wall bracket contains several knockouts of different sizes. When knocked out, the
openings are used for the inputs of various wires.
1/2 in. for data communication cable (DATCOM)
3/4 in. - 1 1/4 in. for AC and DC cables
* A grounding electrode terminal (GET) may be required depending on local regula-
tions.
The cable for the grounding electrode terminal can be fed through the designated
opening on the underside of the wall bracket.
IMPORTANT! The knockouts on the rear of the wall bracket are made of metal.
17
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 connection area of the inverter,
► any metal pieces that do fall into the connection area are removed immediately.
Knocking or Drilling Out Knockouts
IMPORTANT! The knockouts on the underside of the mounting bracket may be knocked
out using a hammer or screwdriver, drilled out using a step drill, or opened using a hole
punch. The side knockouts and the knockouts at the back may only be drilled out with a
step drill or opened with a hole punch.
IMPORTANT! You should only remove the minimum number of knockouts required for the
available cables.
Use suitable eye protection when knocking/drilling out the knockouts.
Only knock out knockouts using a hammer or screwdriver from the inside outwards.
Only use suitable step drills to drill out the knockouts.
Do not use spiral drills for drilling out!
Only drill out knockouts using a step drill from the outside inwards.
When drilling out using a step drill, ensure that the inside of device
(e.g. connection block) is not damaged.
*
When drilling out the knockouts at the back, place the mounting
bracket on an even surface with the back upwards so that shavings
and pieces of metal can fall out of the mounting bracket.
Attach appropriate conduits to all knocked/drilled out knockouts.
In the event of installation outside, only use watertight conduits and
conduit fittings.
Conduits and conduit fittings are not included with the inverter.
If necessary, deburr the number of knockouts required with a suitable
tool.
18
EN-US
1 2
*
*
19
20
AC~
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