FRO­NIUS 10.0-3 208-240 User manual

Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).
/ Perfect Charging / Perfect Welding / Solar Energy
Fronius Symo Advanced - Installa-
tion
10.0-3 208-240
12.0-3 208-240
15.0-3 480
20.0-3 480
22.7-3 480
24.0-3 480
EN-US
Installation instructions
Grid-connected inverter
42,0426,0296,EA 016-17062021

Table of contents
Safety 5
General 5
Electrical installations 5
Rapid shutdown 5
Installation location and position 7
Explanation of safety instructions 7
Safety 7
Intended Use 8
Location Selection 9
Installation position of the inverter 10
General Location Selection 11
Example: Installation of several inverters 12
Do not ground the solar modules. 12
Power Line Communication (PLC) transmitter 12
Preparation 13
Attaching the Mounting Bracket 15
Safety 15
Selecting Dowels and Screws 15
Screw recommendation 15
Opening the Inverter 15
Installing the Mounting Bracket on a Wall 16
Attaching the mounting bracket to a metal carrier 17
Do not warp or deform the mounting bracket 17
Knockouts 18
Safety 18
General 18
Knocking or Drilling Out Knockouts 19
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 27
Monitoring the grid 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
Connecting solar module strings to the inverter 33
Safety 33
String Fuses 34
Permitted cables 35
General Information about Solar Modules 37
Connecting Aluminum Cables 38
Connecting Solar Module Strings to the Inverter 38
Laying Solar.Net Cables 41
Data communication 43
Lay data communication cables 43
Installing Datamanager in the Inverter 44
Finally... 47
Seal Conduits 49
Clipping the Inverter onto the Mounting Bracket 50
3
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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 thumb drive 57
Data Amount and Memory Capacity 58
Buffer Memory 58
Suitable USB Thumb Drives 59
USB Stick for Updating Inverter Software 59
Removing the USB Stick 60
Options 61
Options 61
OPTION 'ShadeCover' 61
Care and maintenance 63
Notes on Maintenance 65
Maintenance 65
Cleaning 65
4

Safety
General This manual contains important instructions for the inverter that must be followed during
installation and maintenance of the inverter.
The inverter is designed and tested according to international safety requirements. Due
to its electrical and electronic components, certain precautions must be taken when
installing and operating the inverter.
In order to reduce the risk of injury to persons and to ensure safe installation and opera-
tion of the inverter, be sure to read these Operating Instructions carefully and follow all
instructions and safety instructions.
Failure to observe the Operating Instructions and safety instructions can void the war-
ranty and/or cause damage to the inverters or other property damage!
Electrical installa-
tions
All electrical installations must be carried out in accordance with the National Electrical
Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation
site.
For installations in Canada, the installations must be done in accordance with applicable
Canadian standards.
Rapid shutdown The rapid shutdown (RSD) can be triggered via loss of the grid connection: If the AC
connection is lost, a rapid shutdown can be performed automatically. The inverter detects
a loss of the AC connection and the lines are discharged to < 30 VDC / 8 A / 240 VA and
< 15 VAC / 8 A / 240 VA. The inverter also interrupts the communication to the PV mod-
ules if they comply with the SunSpec standard for Rapid Shutdown.
In case a module-level shutdown equipment within the PV array is used in combination
with the inverter, this labeling has to be used according to NEC (Section 690.12), CEC
(64-218):
SOLAR PV SYSTEM IS EQUIPPED
WITH RAPID SHUTDOWN.
TURN RAPID SHUTDOWN SWITCH TO
THE „OFF“ POSITION TO SHUT DOWN
PV SYSTEM AND REDUCE SHOCK
HAZARD IN ARRAY.
SOLAR ELECTRIC
PV PANELS
SOLAR PV SYSTEM EQUIPPED
WITH RAPID SHUTDOWN
In case a string-level shutdown equipment at the PV array is used in combination with
the inverter, this labeling has to be used according to NEC (Section 690.12), CEC
(64-218).
5
EN-US

SOLAR PV SYSTEM IS EQUIPPED
WITH RAPID SHUTDOWN.
TURN RAPID SHUTDOWN SWITCH TO
THE „OFF“ POSITION TO SHUT DOWN
CONDUCTORS OUTSIDE THE ARRAY.
CONDUCTORS IN ARRAY REMAIN
ENERGIZED IN SUNLIGHT.
SOLAR ELECTRIC
PV PANELS
SOLAR PV SYSTEM EQUIPPED
WITH RAPID SHUTDOWN
Warning! The installer is responsible for the correct labeling of the PV system. The rapid
shutdown requirement of the inverter is not affected by the FRT (fault ride through) cap-
ability, so the inverter is „Grid support interactive compatible“
Warning! This photovoltaic rapid shutdown equipment (PVRSE) does not perform all of
the functions of a complete photovoltaic rapid shutdown system (PVRSS). This PVRSE
must be installed with other equipment to from a complete PVRSS that meets the
requirements of NEC (NFPA 70) section 690.12, CEC 6 section 4-218 for controlled con-
ductors outside the array. Other equipment installed in or on this PV system may
adversly affect the operation of the PVRSS. It is the responsibility of the installer to
ensure that the completed PV system meets the rapid shutdown functional requirements.
This equipment must be installed according to the manufacturer´s installation instructions
Warning! Risk due to unsuitable location of the inverter. Failure or limited operation of
the inverter can be the result
Location according to the information in the user manual.
Observe national regulations and guidelines for the installation of the inverter.
Self-test
A self-test of the RSD function can be performed manually or automatically. The self-test
only affects the discharge circuit of the RSD function. All other RSD circuit components
are implemented in a single-failure-proof manner.
Automatic self-test sequence:
At each start - before switching on to the public network - the discharge circuit is activ-
ated for 10 ms if the DC voltage (40 V) is sufficient and the feedback pin is checked
before and during charging.
Manual self-test sequence:
A manual self-test can be triggered by an interruption of the AC connection (e.g.: AC
breaker).
The discharge must be measured and checked using a multimeter.
Self-test error automatic: AC_SystemFailure
6

Installation location and position
Explanation of
safety instruc-
tions
WARNING!
Indicates a potentially dangerous situation.
▶Death or serious injury may result if appropriate precautions are not taken.
CAUTION!
Indicates a potentially harmful situation.
▶Minor injury or damage to property may result if appropriate precautions are not
taken.
NOTE!
Indicates a possibility of flawed work results and possible damage to the equip-
ment.
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
electricians.
▶Observe the safety rules!
▶Prior to all installation and connection work, disconnect the AC and DC supply to the
inverter.
7
EN-US

Fire Prevention
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 DC cables:
▶Securely tighten all terminals using the proper torque listed in the Operating Instruc-
tions
▶Securely tighten all grounding terminals (PE/GND) using the proper torque listed in
the Operating Instructions, 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 regu-
lations
▶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/inter-
ruption (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 Instruc-
tions for the devices.
Intended Use The 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 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.
8

All measures recommended by the solar module manufacturer for maintaining solar
module properties must be followed.
Follow all grid operator regulations regarding grid power feed and connection methods.
Location Selec-
tion
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 suscept-
ible to hose water on any side and can also be operated in moist envir-
onments. 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 protec-
ted location, e.g., near the solar modules or under an overhanging
roof.
10.0-3 - 12.0-3 208-240
UDC max
0 - 11154 ft.
(0 - 3400 m)
ft. (m)
600 V
1000 V
0 - 6561 ft.
(0 - 2000 m)
> 8202 - 9842 ft.
(> 2500 - 3000 m)
> 6561 - 8202 ft.
(> 2000 - 2500 m)
> 9842 - 11154 ft.
(> 3000 - 3400 m)
950 V
900 V
850 V
UDC max
ft. (m)
15.0-3 - 24.0-3 480
> 11154 ft.
> 3400 m
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.
UDCmax at an altitude of:
Symo Advanced 10.0-3–12.0-3 208–240
0 to 11,154 ft ( 0 to 3400 m). = 600 V
Symo Advanced 15.0-3–24.0-3 480
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.
NH3
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.
9
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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
Installation posi-
tion of the
inverter
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.
10

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 down-
wards.
Do not install the inverter on the ceiling.
General Location
Selection
Please note the following criteria when choosing a location for the inverter:
4 in.
100 mm
4 in.
100 mm
8 in.
200 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.
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
11
EN-US

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: Installa-
tion of several
inverters
Do not ground
the solar mod-
ules.
+
-
+-
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
negative pole.
Power Line Com-
munication (PLC)
transmitter
The inverter is equipped with a Power Line Communication (PLC) transmitter on the DC
side.
Its function is to ensure rapid shutdown in accordance with US safety standard NEC
2017 Art. 690.12. The PLC is implemented according to the specification "Communica-
tion Signal for Rapid Shutdown – SunSpec Interoperability Specification". Please visit
www.sunspec.org for details.
To ensure compliance with all applicable regulations in your country and to ensure
optimal reception among all recipients, please follow the recommendations below:
- Keep the distance between the DC+ and DC- conductors as small as possible
- Avoid cable loops caused by cables that are too long (coil effect)
- Use metal cable ducts where possible
- Do not place DC cables from different inverters in the same cable duct or cable tray
12

Preparation
13

14

Attaching the Mounting Bracket
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
become 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
Important! Depending on the surface, different mounting materials may be required for
installing 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.
Screw recom-
mendation
For the installation of the inverter we recommend steel or aluminum screws with a dia-
meter of 0.2–0.3 in. (6–8 mm).
Opening the
Inverter 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 ground-
ing the housing and should not be replaced under any circumstances by other
screws that do not provide a reliable ground conductor connection.
15
EN-US

ON
OFF
Lock
1 2
3
lb
4
Installing the
Mounting Bracket
on a Wall
The mounting bracket must be secured in at least four places.
NO NEMA
ENCLOSURE TYPE
1 2
16

Al / St
0.2 - 0.3 in.
(6 - 8 mm)
3
Attaching the
mounting bracket
to a metal carrier
The mounting bracket must be secured in at least four places.
1
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.
17
EN-US

Knockouts
Safety 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.
NOTE!
When using the cable inlets at the back, take care to seal them according to pro-
tection 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.
General
1 1/4 in.1 1/4 in. 1 in.1 in.
Conduit size
1/2 in. / 3/4 in. / 1 in.
*
Conduit size
1/2 in. / 3/4 in. / 1 in. / 1 1/4 in.
**
1/2 in. ... DATCOM
3/4 in. - 1 1/4 in. ... AC ~ / DC =
*
*
** **
*
*
*
*
METAL EMPOSSING
Remove parts fallen
into the connection area before
hanging the inverter to the wall
bracket!
** **
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.
18

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 regu-
lations.
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.
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 knock-
outs.
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 suit-
able tool.
19
EN-US

*
*
1 2
20