Operating

Instructions
Fronius Symo Advanced
10.0-3-M
12.5-3-M
15.0-3-M
17.5-3-M
20.0-3-M

EN Operating Instructions

42,0426,0426,EN 009-30112023
Contents

EN
Safety rules 7
Safety rules 9
Explanation of safety notices 9
General 9
Environmental conditions 10
Qualified personnel 10
Noise emission values 10
EMC measures 10
Data protection 11
Copyright 11
System component compatibility 11

General information 13
General 15
Device concept 15
Proper use/intended purpose 15
Warning notices on the device 16
AFCI - Arc Fault Circuit Interrupter (Arc Guard) 17
Data communication and Fronius Solar Net 19
Fronius Solar Net and data interface 19
Data communication area 19
Description of the "Fronius Solar Net" LED 20
Example 21
Explanation of the multifunction current interface 22
Dynamic power reduction by means of inverter 23
Fail-Safe 23
Fronius Datamanager 2.0 25
Controls, connections and displays on the Fronius Datamanager 2.0 25
Fronius Datamanager 2.0 during the night or when the available DC voltage is insufficient 28
Starting for the first time 28
Further information on Fronius Datamanager 2.0 30
Controls and indicators 31
Controls and displays 31
Display 32
Switching off current supply and restarting the inverter 33
Switching off the power supply to the inverter 33

Installation 35
Installation location and position 37
Explanation of safety notices 37
Safety 37
Proper use/intended purpose 38
Choice of location 39
Installation position 40
General comments regarding choice of location 41
Attaching the Mounting Bracket 43
Safety 43
Selecting wall plugs and screws 43
Recommended screws 43
Opening the inverter 43
Fitting the mounting bracket to a wall 45
Installing the mounting bracket on a mast or beam 45
Fitting the mounting bracket to metal supports 46
Do not warp or deform the mounting bracket 46
Connecting the inverter to the public grid (AC side) 47
Safety 47

3
 Monitoring the grid 47
Type of AC cable 47
Preparing the aluminium cables for connection 47
AC terminals 48
Cross section of the AC cable 48
Connecting the inverter to the public grid (AC) 49
Maximum fuse rating on alternating current side 50
Connection variants on multi-MPP tracker inverters 52
General 52
Multi MPP Tracker 52
Connecting solar module strings to the inverter 55
Safety 55
General comments regarding PV modules 56
DC terminals 56
Connecting aluminium cables 56
Solar module strings - checking the polarity and voltage 57
Connecting the solar module strings to the inverter 58
Data communication 60
Permitted cables for the data communication area 60
Routing data communication cables 60
Installing the Datamanager in the inverter 61
Attaching the inverter to the mounting bracket 63
Attaching the inverter to the mounting bracket 63
Starting for the first time 66
Starting the inverter for the first time 66
Notes regarding maintenance 69
Maintenance 69
Cleaning 69
Australian Conduits 70
Tightly sealing the conduits 70
Seal conduits 70
Serial Number Sticker for Customer Use 71
Serial number sticker for customer use 71

Settings 73
Navigation at the menu level 75
Activating display backlighting 75
Automatic deactivation of display backlighting / changing to the "NOW" menu item 75
Opening the menu level 75
Values displayed under the NOW menu item 76
Values displayed under the LOG menu item 76
SETUP menu item 78
Initial setting 78
Software updates 78
Navigating the SETUP menu item 78
Setting menu entries, general 79
Application example: Setting the time 79
Menu items in the Set-up menu 81
Standby 81
DATCOM 81
USB 82
Relay (floating contact switch) 83
Energy Manager(under Relay menu item) 84
Time / Date 85
Display settings 86
ENERGY YIELD 87
Fan 88
The INFO menu item 89
Measured values 89
PSS status 89
Grid status 89

4
 Device information 89
Version 91

EN
Switching the key lock on and off 92
General 92
Switching the key lock on and off 92
USB Stick as a Data Logger and for Updating Inverter Software 93
USB flash drive as a datalogger 93
Data on the USB flash drive 93
Data volume and storage capacity 94
Buffer memory 95
Suitable USB flash drives 95
USB flash drive for updating the inverter software 96
Removing the USB flash drive 96
The Basic menu 98
Access the Basic menu 98
Menu items in the Basic menu 98
Settings if the "DC SPD" option is installed 99

Appendix 101
Status diagnostics and troubleshooting 103
Status code display 103
Total failure of the display 103
Class 1 status codes 103
Class 2 status codes 104
Class 3 status codes 104
Status codes – Class 4 106
Status codes – Class 5 108
Class 6 status codes 110
Status codes – Class 7 111
Class 10 - 12 status codes 113
Customer service 113
Operation in dusty environments 113
Technical data 114
Fronius Symo Advanced 10.0-3-M 114
Fronius Symo Advanced 12.5-3-M 116
Fronius Symo Advanced 15.0-3-M 118
Fronius Symo Advanced 17.5-3-M 120
Fronius Symo Advanced 20.0-3-M 122
Explanation of footnotes 124
WLAN 124
Integrated DC disconnector Fronius Symo Advanced 10.0-12.5 124
Integrated DC disconnector Fronius Symo Advanced 15.0 - 20.0 125
Applicable standards and guidelines 126
Warranty terms and conditions, and disposal 127
Fronius manufacturer's warranty 127
Disposal 127

5
6
Safety rules

7
8
Safety rules

EN
Explanation of
DANGER!
safety notices
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.

General The device has been manufactured in line with the state of the art and according
to recognized safety standards. If used incorrectly or misused, however, it can
cause:
- Injury or death to the operator or a third party
- Damage to the device and other material assets belonging to the operating
company.

All personnel involved in commissioning, maintenance, and servicing of the

device must:
- Be suitably qualified
- Have knowledge of and experience in dealing with electrical installations and
- Have fully read and precisely followed these Operating Instructions

The Operating Instructions must always be at hand wherever the device is being
used. In addition to the Operating Instructions, attention must also be paid to
any generally applicable and local regulations regarding accident prevention and
environmental protection.

All safety and danger notices on the device:

- Must be kept in a legible state
- Must not be damaged
- Must not be removed
- Must not be covered, pasted or painted over

The terminals can reach high temperatures.

Only operate the device when all protection devices are fully functional. If the
protection devices are not fully functional, there is a danger of:
- Injury or death to the operator or a third party
- Damage to the device and other material assets belonging to the operating
company

9
 Any safety devices that are not fully functional must be repaired by an author-
ised specialist before the device is switched on.

Never bypass or disable protection devices.

For the location of the safety and danger notices on the device, refer to the sec-
tion headed "General remarks" in the Operating Instructions for the device.

Any equipment malfunctions which might impair safety must be remedied before
the device is turned on.

This is for your personal safety!

Environmental Operation or storage of the device outside the stipulated area will be deemed as
conditions not in accordance with the intended purpose. The manufacturer accepts no liab-
ility for any damage resulting from improper use.

Qualified per- The servicing information contained in these operating instructions is intended
sonnel only for the use of qualified service engineers. An electric shock can be fatal. Do
not carry out any actions other than those described in the documentation. This
also applies to qualified personnel.

All cables and leads must be secured, undamaged, insulated and adequately di-
mensioned. Loose connections, scorched, damaged or inadequately dimensioned
cables and leads must be immediately repaired by authorised personnel.

Maintenance and repair work must only be carried out by an authorised special-
ist.

It is impossible to guarantee that bought-in parts are designed and manufac-

tured to meet the demands made on them, or that they satisfy safety require-
ments. Use only original spare parts (also applies to standard parts).

Do not carry out any alterations, installations, or modifications to the device

without first obtaining the manufacturer's permission.

Components that are not in perfect condition must be changed immediately.

Noise emission The maximum sound power level of the inverter is specified in the Technical
values Data.

The device is cooled as quietly as possible with the aid of an electronic temperat-
ure control system; this depends on the amount of converted power, the ambient
temperature, the level of soiling of the device, etc.

It is not possible to provide a workplace-related emission value for this device

because the actual sound pressure level is heavily influenced by the installation
situation, the power quality, the surrounding walls and the properties of the room
in general.

EMC measures In certain cases, even though a device complies with the standard limit values for
emissions, it may affect the application area for which it was designed (e.g., when
there is equipment that is susceptible to interference at the same location, or if
the site where the device is installed is close to either radio or television receiv-
ers). If this is the case, then the operator is obliged to take action to rectify the
situation.

10
Data protection The user is responsible for the safekeeping of any changes made to the factory

EN
settings. The manufacturer accepts no liability for any deleted personal settings.

Copyright Copyright of these operating instructions remains with the manufacturer.

The text and illustrations are all technically correct at the time of printing. We
reserve the right to make changes. The contents of the operating instructions
shall not provide the basis for any claims whatsoever on the part of the pur-
chaser. If you have any suggestions for improvement, or can point out any mis-
takes that you have found in the instructions, we will be most grateful for your
comments.

System compon- All installed components in the photovoltaic system must be compatible and
ent compatibility have the necessary configuration options. The installed components must not re-
strict or negatively influence the functioning of the photovoltaic system.

NOTE!
Risk due to components in the photovoltaic system that are not compatible
and/or have limited compatibility.
Incompatible components may limit and/or negatively affect the operation
and/or functioning of the photovoltaic system.
▶ Only install components recommended by the manufacturer in the photovol-
taic system.
▶ Before installation, check the compatibility of components not expressly re-
commended with the manufacturer.

11
12
General information

13
14
General

EN
Device concept Device design:
(1) Housing cover
(2) Inverter
(3) Wall bracket
(4) Connection area incl. DC main
switch
(5) Data communication area
(6) Data communication cover

The inverter transforms the direct cur-

rent generated by the solar modules
into alternating current. This alternat-
ing current is fed into the public grid
synchronously with the grid voltage.

The inverter has been developed exclusively for use in grid-connected photovol-
taic systems; it is impossible to generate energy independently of the public grid.

Thanks to its design and the way it works, the inverter is extremely safe both to
install and to operate.

The inverter automatically monitors the public grid. Whenever conditions in the
electric grid are inconsistent with standard conditions (for example, grid switch-
off, interruption, etc.), the inverter will immediately stop producing power and in-
terrupt the supply of power into the grid.
The grid is monitored by monitoring the voltage, frequency and islanding condi-
tions.

The inverter operates fully automatically. As soon after sunrise as there is suffi-
cient energy available from the solar modules, the inverter starts monitoring the
grid. When insolation has reached a sufficient level, the inverter starts feeding
energy into the grid.
The inverter operates in such a way that the maximum possible amount of power
is obtained from the solar modules.
As soon as the power available has fallen below the level at which energy can be
fed into the grid, the inverter disconnects the power electronics completely from
the grid and stops running. It retains all its settings and stored data.

If the inverter becomes too hot, it automatically reduces the current output
power in order to protect itself.
Reasons for the inverter becoming too hot include the ambient temperature be-
ing too high or inadequate heat dissipation (e.g. if it is installed in a switch cabinet
without suitable heat dissipation).

Proper use/ The inverter is intended exclusively to convert direct current from solar modules
intended pur- into alternating current and to feed this into the public grid.
pose 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 ap-
proved by Fronius
- the installation of components that are not distributed or expressly ap-
proved by Fronius.

15
 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

When designing the photovoltaic system, ensure that all components are oper-
ated 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 meth-
ods and energy fed into the grid.

Warning notices There are warning notices and safety symbols on and in the inverter. These warn-
on the device ing notices and safety symbols must not be removed or painted over. They warn
against incorrect operation, as this may result in serious injury and damage.

Fronius Symo
5 Advanced 10.0-3-M/
12.5-3-M / 15.0-3-M
17.5-3-M / 20.0-3-M
5

Safety symbols:
Danger of serious injury and damage due to incorrect operation

Do not use the functions described here until you have fully read and
understood the following documents:
- These Operating Instructions
- All the Operating Instructions for the system components of the
photovoltaic system, especially the safety rules
Dangerous electrical voltage

Wait for the capacitors to discharge.

16
 To comply with European Directive 2012/19/EU on Waste Electrical and
Electronic Equipment and its implementation as national law, electrical

EN
equipment that has reached the end of its life must be collected separ-
ately and returned to an approved recycling facility. Any device that you
no longer require must be returned to your distributor or disposed of at
an approved collection and recycling facility in your area. Ignoring this
European Directive may have potentially adverse effects on the environ-
ment and your health!

Text of the warning notices:

WARNING!
An electric shock can be fatal. Before opening the device, it must be disconnec-
ted at the input and output. Wait for the capacitors to discharge (the discharge
time is indicated on the device).

Symbols on the rating plate:

CE mark – confirms compliance with applicable EU directives and
regulations.

UKCA mark – confirms compliance with applicable UK directives and

regulations.

WEEE mark – waste electrical and electronic equipment must be

collected separately and recycled in an environmentally sound manner
in accordance with the European Directive and national law.
RCM mark – tested in accordance with the requirements of Australia
and New Zealand.
ICASA mark – tested in accordance with the requirements of the
Independent Communications Authority of South Africa.
CMIM mark – tested in accordance with IMANOR requirements for
import regulations and compliance with Moroccan standards.

AFCI - Arc Fault AFCI (Arc Fault Circuit Interrupter) protects against arcing faults and in the nar-
Circuit Inter- rower sense is a protection device against contact faults. The AFCI evaluates any
rupter (Arc DC-side faults that occur in the current and voltage curve with an electronic cir-
Guard) cuit and switches off the circuit when a contact fault is detected. This prevents
overheating on poor contacts and ideally possible fires.

CAUTION!

Danger due to incorrect or unprofessional DC installation.

The result is risk of damage and in turn, risk of fire to the PV system due to inad-
missible thermal loads that arise with an arc.
▶ Check plug connections are in good condition.
▶ Repair incorrect insulation as appropriate.
▶ Complete connections as per the specifications.

IMPORTANT!
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 damage that can occur despite the presence of
the integrated Arc Fault Circuit Interrupter/extinguishing system ( e.g. caused by
a parallel arc).

17
 IMPORTANT!
Active PV module electronics (e.g., power optimiser) can impair the function of
the Arc Fault Circuit Interrupter. Fronius does not guarantee that the Arc Fault
Circuit Interrupter will work correctly in combination with active PV module
electronics.

Reconnection behaviour
After detection of an arc, feeding energy into the grid is interrupted for at least 5
minutes. Depending on the configuration, feeding energy into the grid is then
automatically resumed. If several arcs are detected within a period of 24 hours,
feeding energy into the grid can also be permanently interrupted until a manual
reconnection has taken place."

18
Data communication and Fronius Solar Net

EN
Fronius Solar Fronius Solar Net was developed to make system add-ons flexible to use in a
Net and data in- variety of different applications. Fronius Solar Net is a data network that en-
terface ables multiple inverters to be linked up using system add-ons.
It is a bus system that uses a ring topology. One suitable cable is sufficient for
communication between one or several inverters that are connected on the
Fronius Solar Net using a system add-on.
Similarly, every inverter on the Fronius Solar Net must be assigned a unique
number.
For instructions on how to assign a unique number, refer to the section SETUP
menu item.
Fronius Solar Net automatically recognises a wide variety of system add-ons.
In order to distinguish between several identical system extensions, each one
of them must be assigned a unique number.
More detailed information on the individual system add-ons can be found in
the relevant operating instructions or on the internet at http://www.froni-
us.com

® http://www.fronius.com/QR-link/4204101938

Data communic-
ation area

Depending on the model, the inverter may be equipped with the Fronius
Datamanager plug-in card (8).

19
 Ite
m Description
(1) Switchable multifunction current interface.
For a more detailed explanation, see the following section Explanation
of the multifunction current interface.

Use the 2-pin mating connector supplied with the inverter to connect to
the multifunction current interface.
(2) / IN Fronius Solar Net connection / interface protocol
(3) OUT Fronius Solar Net connection / interface protocol
"Fronius Solar Net" / interface protocol input and output for connecting
to other DATCOM components (e.g. inverter, Fronius sensor box, etc.)

If several DATCOM components are linked together, a terminating plug

must be connected to every free IN or OUT connection on a DATCOM
component.
For inverters with a Fronius Datamanager plug-in card, two terminating
plugs are supplied with the inverter.
(4) The "Fronius Solar Net" LED
indicates whether the Fronius Solar Net power supply is available.
(5) The "Data transfer" LED
flashes while the USB flash drive is being accessed. The USB flash drive
must not be removed while recording is in progress.
(6) USB A socket
for connecting a USB flash drive with maximum dimensions of
65 x 30 mm (2.6 x 2.1 in.)

The USB flash drive can function as a datalogger for any inverter that it
is connected to. The USB flash drive is not included in the scope of sup-
ply of the inverter.
(7) Floating switch contact (relay) with mating connector

max. 250 V AC / 4 A AC
max. 30 V DC / 1 A DC
max. 1.5 mm² (AWG 16) cable cross-section

Pin 1 = NO contact (normally open)

Pin 2 = C (common)
Pin 3 = NC contact (normally closed)

For a more detailed explanation, please see section Relay (floating con-
tact switch).
Use the mating connector supplied with the inverter to connect to the
floating switch contact.
(8) Fronius Datamanager 2.0 with WLAN antenna
or
cover for option card compartment

Note: Fronius Datamanager 2.0 is only available as an option.

(9) Cover for option card compartment

Description of The "Fronius Solar Net" LED is on:

the "Fronius Sol- the power supply for data communication within the Fronius Solar Net / inter-
ar Net" LED face protocol is OK

20
 The "Fronius Solar Net" LED flashes briefly every 5 seconds:
data communication error in the Fronius Solar Net

EN
- Overcurrent (current flow > 3 A, e.g. resulting from a short circuit in the
Fronius Solar Net ring)
- Undervoltage (not a short circuit, voltage in Fronius Solar Net < 6.5 V, e.g. if
there are too many DATCOM components on the Fronius Solar Net and not
enough electrical power is available)

In this case, power for the Fronius DATCOM components must be supplied
by connecting an additional power supply (43,0001,1194) to one of the
Fronius DATCOM components.

To detect the presence of an undervoltage, check some of the other Fronius

DATCOM components for faults as required.

After cutting out because of overcurrent or undervoltage, the inverter attempts

to restore the power supply in the Fronius Solar Net every 5 seconds while the
fault is still present.

Once the fault is rectified, power to the Fronius Solar Net will be restored within
5 seconds.

Example Recording and archiving data from the inverter and sensor using a Fronius
Datamanager and a Fronius Sensor Box:

1 2 Sensor Box 3

IN OUT

OUT
IN
OUT * IN IN OUT

WLAN
°C m/s

W/m²

* Fronius Datamanager

Data network with 3 inverters and a Fronius Sensor Box:

- Inverter 1 with Fronius Datamanager 2.0
- Inverters 2 and 3 without Fronius Datamanager 2.0!

= Terminating plug

The external communication (Fronius Solar Net) takes place on the inverter via
the data communication area. The data communication area contains two RS 422
interfaces as inputs and outputs. RJ45 plug connectors are used to make the
connection.

IMPORTANT! Since the Fronius Datamanager 2.0 functions as a Datalogger, the

Fronius Solar Net ring must not include any other Dataloggers / Datamanagers.
As such, only one Fronius Datamanager / Dataloggers is permirred per Fronius
Solar Net ring!
Any other Fronius Datamanagers / Dataloggers must be removed and the unoc-
cupied option card compartment sealed off by replacing the cover (item number
- 42,0405,2094); alternatively, use an inverter without Fronius Datamanager
(light version).

21
Explanation of Various wiring variants can be connected to the multifunction current interface.
the multifunc- However, these cannot be operated simultaneously. For example, if an S0 meter
tion current in- is connected to the multifunction current interface, it is not possible to connect
terface a signal contact for the surge protection device (or vice versa).

Pin 1 = measurement input: max. 20 mA, 100 Ohm measurement resistor (load
impedance)
Pin 2 = max. short circuit current 15 mA, max. open-circuit voltage 16 V DC or
GND

Wiring diagram variant 1: Signal contact for surge protective device

Depending on the setting in the Basic menu (Signal Input submenu), the DC SPD
option (surge protective device) either outputs a warning or an error on the dis-
play. Further information on the DC SPD option can be found in the Installation
Instructions.

Wiring diagram variant 2: S0 meter

A meter for recording the self-consumption of each S0 can be connected dir-
ectly to the inverter. This S0 meter can be positioned directly at the feed-in point
or in the consumption branch.

IMPORTANT! In order to connect an S0 meter to the inverter, it may be neces-

sary to update the inverter firmware.

The S0 meter must comply with the IEC62053-31 Class B standard

Recommended max. pulse rate of the S0 meter:

PV output kWp [kW] Max. pulse rate per kWp
30 1000
20 2000
10 5000
≤ 5.5 10000

With this meter, dynamic power reduction can be performed in two ways:
- Dynamic power reduction by means of inverter
For more information see chapter Dynamic power reduction by means of in-
verter on page 23
- Dynamic power reduction by means of the Fronius Datamanager 2.0
for more info see: manuals.fronius.com/html/4204260191/
#0_m_0000017472

22
Dynamic power Energy companies or grid operators may impose feed-in limits on an inverter. Dy-

EN
reduction by namic power reduction takes account of self-consumption by the household be-
means of invert- fore the power of an inverter is reduced:
er
A counter for determining self-consumption of the S0 can be connected directly
to the inverter – see chapter Explanation of the multifunction current interface
on page 22

A feed-in limit can be set in the Basic menu under Signal input – S0 meter – see
chapter Menu items in the Basic menu on page 98.

Setting options for S0 meter:

- Grid feed-in limit
Field for entering the maximum grid feed-in power in W. If this value is ex-
ceeded, the inverter regulates down to the set value within the time required
by national standards and regulations.
- Pulses per kWh
Field for entering the pulses per kWh of the S0 meter.

Zero feed-in is possible with this configuration.

When using the S0 meter and power reduction by means of an inverter, the S0
meter must be installed in the consumption branch.

S0 meter in the consumption branch

If dynamic power reduction is subsequently configured using the Fronius

Datamanager 2.0 (Inverter user interface - UC Editor menu - Dynamic power re-
duction), dynamic power reduction must be deactivated using the inverter (In-
verter display - Basic menu - Signal input - S0 meter).

Fail-Safe In the Fronius Solar Net ring (a combination of several inverters), the Fail-Safe
function prevents inadmissible feeding of the connected inverters in the start-up
phase or during operation. For this purpose, a signal is transmitted from the
primary inverter with built-in data manager to the secondary inverters (Lite
devices).

The function is activated as soon as the data manager fails or the Solar Net con-
nection is interrupted. In this case, the signal is not transmitted to the secondary
inverters. All devices switch off with status 710.

23
 The following requirements must be met to enable the Fail-Safe to function cor-
rectly:
- For all inverters in the Solar Net ring, Fail-Safe Mode must be set to Per-
manent and Fail-Safe Behaviour to Disconnect.
- The inverter with data manager must be located in the last position of the
ring line.

Correct wiring

T T
Function in the event of a fault

710 710 710 710

Fault 1 Fault 2

T T
Faults occur at the beginning and end of the Solar Net ring – the primary invert-
er stops sending the signal, and secondary inverters switch off with status 710.

710 710 710 710

Fault 1 Fault 5
Fault 2 Fault 3 Fault 4

T T
Faults occur at the beginning and end of the Solar Net ring or between the con-
nected inverters – the primary inverter stops sending the signal, and secondary
inverters switch off with status 710.

24
Fronius Datamanager 2.0

EN
Controls, con-
nections and dis-
plays on the (1)
Fronius
(2) (5)
Datamanager 2.0
(3) (4)

(10) (9) (8) (7) (6)

No. Function
(1) IP switch
For switching the IP address:
Switch position A
Default IP address with opening of the WLAN access point

Fronius Datamanager 2.0 uses the set IP address 169.254.0.180 to

establish a direct connection to a PC via LAN.

Setting the IP switch to position A also opens an access point to en-

able a direct WLAN connection to the Fronius Datamanager 2.0.

Access data for this access point:

Network name: FRONIUS_240.XXXXXX
Code: 12345678

Access to the Fronius Datamanager 2.0 is possible:

- Using the DNS name "http://datamanager"
- Using the IP address 169.254.0.180 for the LAN interface
- Using the IP address 192.168.250.181 for the WLAN access
point
Switch position B
Assigned IP address

The Fronius Datamanager 2.0 uses an assigned IP address (factory

setting dynamic (DHCP))
The IP address can be set on the Fronius Datamanager 2.0 website.

25
 No. Function
(2) WLAN LED
- Flashing green: Fronius Datamanager 2.0 is in Service mode
(IP switch on the Fronius Datamanager 2.0 plug-in card is in posi-
tion A or Service mode has been activated via the inverter display,
the WLAN access point is open)
- Lights up green: WLAN connection established
- Flashing green/red (alternately): WLAN access point has timed out
following activation (1 hour)
- Lights up red: no WLAN connection
- Flashing red: faulty WLAN connection
- Does not light up: Fronius Datamanager 2.0 is in Slave mode
(3) Solar.web connection LED
- Lights up green: Fronius Solar.web connection established
- Lights up red: Fronius Solar.web connection is required but has not
been established
- Does not light up: no connection to Fronius Solar.web is required
(4) Supply LED
- Lights up green: Fronius Solar Net is providing an adequate power
supply; Fronius Datamanager 2.0 is ready for use.
- Does not light up: insufficient or no power supply from Fronius Sol-
ar Net - an external power supply is required
or
the Fronius Datamanager 2.0 is in Slave mode
- Flashing red: update in progress

IMPORTANT! Never interrupt the power supply while an update is

in progress.
- Lights up red: update failed
(5) Connection LED
- Lights up green: connection established within Fronius Solar Net
- Lights up red: connection within Fronius Solar Net interrupted
- Does not light up: Fronius Datamanager 2.0 is in Slave mode
(6) LAN connection
Ethernet interface, colour-coded blue, for connecting the Ethernet
cable
(7) I/Os
Digital inputs and outputs
D-
9
7
5
3
1
-
-
D+
+
+
8
6
4
2
0

I IO RS485

26
No. Function

EN
Modbus RTU 2-wire (RS485):
D- Modbus data -
D+ Modbus data +

Int./ext. Power supply

- GND
+ Uint / Uext
Internal voltage output 12.8 V
or
input for an external supply voltage
>12.8 - 24 V DC (+ 20%)

Digital inputs: 0 - 3, 4 - 9
Voltage level: low = min. 0 V - max. 1.8 V; high = min. 3 V - max. 24 V DC
(+ 20%)
Input currents: dependent on input voltage; input resistance = 46 kOhm

Digital outputs: 0 - 3
Switching capacity when power is supplied by the Fronius Datamanager
2.0 plug-in card: 3.2 W in total for all 4 digital outputs

Switching capacity when power is supplied by an external power supply

delivering min. 12.8 - max. 24 V DC (+ 20%), connected to Uint / Uext
and GND: 1 A, 12.8 - 24 V DC (depending on external power supply) for
each digital output

The connection to the I/Os is established via the mating connector sup-
plied.
(8) Antenna socket
This is where the WLAN antenna is connected
(9) Modbus termination switch (for Modbus RTU)
Internal bus terminator with 120 ohm resistor (yes/no)

Switch in "ON" position: 120 ohm terminating resistor active

Switch in "off" position: no terminating resistor active

IMPORTANT! On an RS485 bus, the terminating resistor on the first

and last device must be active.
(10) Fronius Solar Net Master / Slave switch
To switch from master to slave mode within a Fronius Solar Net ring

IMPORTANT! In slave mode, all the LEDs on the Fronius Datamanager

2.0 plug-in card are off.

27
Fronius The Night Mode parameter under "Display Settings" in the Setup menu is preset
Datamanager 2.0 to OFF in the factory.
during the night For this reason the Fronius Datamanager 2.0 cannot be accessed during the
or when the night or when the available DC voltage is insufficient.
available DC
voltage is insuf- To nevertheless activate the Fronius Datamanager 2.0, switch the inverter off and
ficient on again at the mains and press any function button on the inverter display within
90 seconds.

See also the chapters on "Menu items in the Setup menu", "Display settings"
(Night Mode).

Starting for the Starting the Fronius Datamanager 2.0 for the first time is made considerably
first time easier with the Fronius Solar.start app. The Fronius Solar.start app is available in
the respective app stores.

When starting the Fronius Datamanager 2.0 for the first time,
- the Fronius Datamanager 2.0 plug-in card must be installed in the inverter,
or
- there must be a Fronius Datamanager Box 2.0 in the Fronius Solar Net ring.

IMPORTANT! In order to establish a connection to Fronius Datamanager 2.0,

“Obtain IP address automatically (DCHP)” must be activated on the end device
in question (e.g. laptop, tablet).

NOTE!
If the photovoltaic system has only one inverter, steps 1 and 2 below can be
skipped.
In this case, starting for the first time will commence with step 3.

1 Connect inverter with Fronius Datamanager 2.0 or Fronius Datamanager Box

2.0 to the Fronius Solar Net
2 When networking several inverters in Fronius Solar Net:

Set the Fronius Solar Net master / slave switch on the Fronius Datamanager
2.0 plug-in card correctly
- One inverter with Fronius Datamanager 2.0 = master
- All other inverters with Fronius Datamanager 2.0 = slave (the LEDs on
the Fronius Datamanager 2.0 plug-in cards and boxes are not illuminated)
3 Switch the device to Service mode
- Activate the WLAN Access Point via the Setup menu on the inverter

28
 Stand by

EN
WiFi Access Point
DATCOM
USB
Clock

The inverter establishes the WLAN access point. The WLAN access point re-
mains open for 1 hour. The protection switch on the Fronius Datamanager 2.0 can
remain in switch position A due to the activation of the WLAN Access Point.

Installation using the Solar.start Installation using a web browser

app
4 Download Fronius Solar.start 4 Connect the end device to the
WLAN access point

SSID = FRONIUS_240.xxxxx (5-8

digits)
- Search for a network with the
name "FRONIUS_240.xxxxx"
5 Run the Fronius Solar.start app - Establish a connection to this
network
- Enter password from the in-
verter display

(Alternatively, connect the end

device and inverter using an Eth-
ernet cable.)
5 Enter the following in the
browser:
http://datamanager
or
192.168.250.181 (IP address for
WLAN connection)
or
169.254.0.180 (IP address for
LAN connection)

The Setup wizard start page is displayed.

The technician wizard is intended for the installer and contains standard-specific
settings. Running the technician wizard is optional.

29
 If the technician wizard is run, it is vital to note the service password that is is-
sued. This service password is necessary for setting the "DNO Editor" menu item.
If the technician wizard is not run, no specifications regarding power reduction
are set.

Running the Fronius Solar.web wizards is mandatory.

6 Run the Fronius Solar.web wizards and follow the instructions

The Fronius Solar.web homepage is displayed,

or
the Fronius Datamanager 2.0 web page is displayed.

7 Where necessary, run the technician wizard and follow the instructions

Further informa- Further information on the Fronius Datamanager 2.0 and other start-up op-
tion on Fronius tions can be found at:
Datamanager 2.0

→ http://www.fronius.com/QR-link/4204260191DE

30
Controls and indicators

EN
Controls and dis-
plays (1)

(2)
(3)
(4)

(5) (6) (7) (8)

Item Description
(1) Display
For displaying values, settings and menus

Monitoring and status LEDs

(2) Initialisation LED (red) lights up
- During the initialisation phase when starting up the inverter
- If, when starting up the inverter in the initialisation phase, there is
a continuous hardware fault
(3) Status LED (orange) lights up
- If, after the initialisation phase, the inverter is in its automatic
startup or self-test phase (as soon as the solar modules are deliv-
ering sufficient power after sunrise)
- If status codes (STATE Codes) are shown on the inverter display
- If the inverter has been switched to Standby mode in the Setup
menu (= feeding energy into the grid switched off manually)
- If the inverter software is being updated
(4) Operating status LED (green) lights up
- If the PV system is working correctly after the inverter's automat-
ic startup phase
- all the time while energy is being fed into the grid

Function keys - allocated different functions depending on the selection:

(5) "Left/up" key
For navigating to the left and up
(6) "Down/right" key
For navigating down and to the right
(7) "Menu/Esc" key
For switching to the menu level
For quitting the Setup menu
(8) "Enter" key
For confirming a selection

The keys operate capacitively. Exposure to water may impair their function. If ne-
cessary, wipe the keys dry with a cloth to ensure optimum functionality.

31
Display Power for the display comes from the mains voltage. Depending on the setting
selected in the Setup menu, the display can be kept on all day. (For night mode,
see section Display settings)

IMPORTANT! The display of the inverter is not a calibrated measuring device.

A slight deviation from the utility meter of the energy company is system-re-
lated. A calibrated meter will be needed to calculate the bills for the energy
company.

Display areas, display mode

Display areas in Setup mode

(*) Scroll bar

(**) Energy Manager icon
is displayed when the "Energy Manager" function is activated
For more information, see section Relay (floating contact switch)
(***) Inv. no. = Inverter DATCOM number,
Save symbol - appears briefly while set values are being saved,
USB connection - appears if a USB flash drive has been connected

32
Switching off current supply and restarting the
inverter

EN
Switching off the 1 1. Turn off the automatic circuit
power supply to breaker.
the inverter 2. Turn the DC disconnector to the
"OFF" switch position.

Switching the inverter on again

1. Turn the DC disconnector to the "ON" switch position.
2. Switch on the automatic circuit breaker.

33
34
Installation

35
36
Installation location and position

EN
Explanation of
DANGER!
safety notices
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.

Safety
WARNING!

Danger due to incorrect operation and incorrectly performed work.

This can result in serious injury and damage to property.
▶ Only qualified personnel 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 com-
missioning the equipment.

WARNING!

Danger due to work that has been carried out incorrectly.

This may result in serious injury and damage to property.
▶ Surge protective devices must only ever be installed and connected by a
qualified electrical installation engineer!
▶ Follow the safety rules.
▶ Ensure that both the AC side and the DC side of the inverter are de-ener-
gised before carrying out any installation and connection work.

37
 Fire prevention

CAUTION!

Danger due to poor or unprofessional installation.

This may result in damage to inverters and other live photovoltaic system com-
ponents.
Poor or unprofessional installation can cause overheating 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 cables:

▶ Tighten all terminals to the torque specified in the Operating Instructions
▶ Tighten all grounding terminals (PE / GND), including free ones, to the torque
specified in the Operating 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!

IMPORTANT! 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 Fault Circuit Interrupter / interruption system
(e.g. fires caused by a parallel arc).

IMPORTANT! 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 relevant terminal connections.

Proper use/ The inverter is intended exclusively to convert direct current from solar modules
intended pur- into alternating current and to feed this into the public grid.
pose 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 ap-
proved by Fronius
- the installation of components that are not distributed or expressly ap-
proved by Fronius.

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

38
 When designing the photovoltaic system, ensure that all components are oper-
ated within their permitted operating ranges at all times.

EN
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 meth-
ods and energy fed into the grid.

Choice of loca-
tion
The inverter is suitable for indoor installation.

The inverter is suitable for outdoor installation.

Because of its IP 66 protection class, the inverter is resistant to

IP 66 water jets from any direction and can also be used in damp en-
vironments.

In order to minimise the heating up of the inverter, do not ex-

pose it to direct insolation. The inverter should be installed in a
protected location, for example, e.g. in the area of the PV mod-
ules or under an overhanging roof.

UDCmax at an altitude of:

0 to 2000 m = 1000 V
2001 to 2500 m = 950 V
2501 to 3000 m = 900 V
3001 to 3400 m = 850 V

IMPORTANT! The inverter must not be installed or used at alti-

tudes above 3400 m.

NH3 Do not install the inverter in:

- Areas where it may be exposed to ammonia, corrosive gases,
acids or salts
(e.g. fertiliser storage areas, vent openings for livestock
stables, chemical plants, tanneries, etc.)

During certain operating phases the inverter may produce a

slight noise. For this reason it should not be installed in an occu-
pied living area.

39
 Do not install the inverter in:
- Places where there is an increased risk of damage from farm
animals (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 clean-
ing is necessary in such situations. We therefore recommend not
installing the device in areas and environments with high dust
accumulation.
Do not install the inverter in:
- Greenhouses
- Storage or processing areas for fruit, vegetables or viticul-
ture products
- Areas used in the preparation of grain, green fodder or an-
imal feeds

Installation posi-
tion

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 its connection

sockets at the top.

Do not install the inverter at an angle on a vertical wall or column.

40
 EN
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 con-
nection sockets facing upwards.

Do not install the inverter overhanging with the connection sock-

ets at the top.

Do not install the inverter overhanging with the connection sock-

ets at the bottom.

Do not install the inverter on the ceiling.

General com- Please note the following criteria when choosing a location for the inverter:
ments regarding
choice of loca-
tion

Only install on a solid, non-flammable surface

Max. ambient temperatures: -25 °C / +60 °C
Relative humidity: 0-100%

41
 The airflow within the inverter is from the right to the top (cold air taken in
from the right, hot air dissipated out of the top).
The exhaust air can reach a temperature of 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.
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 acids.

42
Attaching the Mounting Bracket

EN
Safety
WARNING!

Danger of residual voltage from capacitors.

This may result in an electric shock.
▶ Wait for the capacitors to discharge. The discharge time is indicated on the
inverter.

CAUTION!

Danger due to dirt or water on the terminals and contacts of the inverter's con-
nection area.
This may result in damage to the inverter.
▶ When drilling, ensure that terminals and contacts in the connection area do
not become dirty or wet.
▶ The mounting bracket without the power stage set does not correspond to
the protection class of the entire inverter and must therefore not be exposed
to external weather influences over a longer period of time without protec-
tion. The mounting bracket is protected when the inverter is suspended in
the mounting bracket and firmly screwed to it.
▶ The mounting bracket should be protected from dirt and moisture during in-
stallation.

IMPORTANT!

Degree of protection IP 66 is only applicable if

- the inverter is placed in the mounting bracket and permanently attached us-
ing 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.

Selecting wall Important! Different fixings may be required to fit the mounting bracket depend-
plugs and screws ing 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 To install the inverter, we recommend the use of steel or aluminium screws with a
screws diameter of 6 - 8 mm.

Opening the in-

WARNING!
verter
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
earthing the housing and must NOT be replaced by any other screws that do
not provide a reliable ground conductor connection.

43
 1 2

3 4

44
Fitting the

EN
1 2
mounting brack-
et to a wall

Installing the When installing the inverter on a mast

mounting brack- or support, Fronius recommends the
et on a mast or "Pole Clamp" kit from Rittal GmbH (or-
beam der no. SZ 2584.000).
This kit enables the inverter to be in-
stalled on round or rectangular masts
with the following diameters: Æ from
40 to 190 mm (round mast), ÿ from 50
to 150 mm (rectangular mast)

45
Fitting the NOTE!
mounting brack-
et to metal sup- When mounted on metal supports, the inverter must not be exposed to rainwa-
ports ter or splashing water from the rear.
Provide suitable rainwater protection or splash water protection.

The mounting bracket must be securely screwed to at least four points.

Do not warp or IMPORTANT! When fitting the mounting bracket to the wall, ensure that the
deform the mounting bracket does not become warped or deformed.
mounting brack-
et

46
Connecting the inverter to the public grid (AC
side)

EN
Safety
WARNING!

Danger due to incorrect operation and incorrectly performed work.

This may 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 com-
missioning 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-ener-
gised before carrying out any connection work.
▶ Only an authorised electrical engineer is permitted to connect this equip-
ment to the public grid.

CAUTION!

Danger due to incorrectly tightened terminals.

This may result in heat damage to the inverter, which may lead to fire.
▶ When connecting AC and DC cables, ensure that all the terminals are
tightened to the specified torque.

Monitoring the To provide the best possible grid monitoring, the resistance in the leads to the
grid AC-side terminals should be as low as possible.

Type of AC cable The following types of AC cable can be connected to the AC terminals of the in-
verter:

- Copper or aluminium: solid round conductor

- Copper: fine-stranded round conductor

Preparing the The AC-side terminals are suitable for connecting single-wire, round aluminium
aluminium cables. Because of the formation of a non-conductive oxide layer due to the re-
cables for con- action of aluminium with air, the following points must be considered when con-
nection necting aluminium cables:
- the reduced rated currents for aluminium cables
- the connection conditions listed below

Always follow the cable manufacturer instructions when using aluminium cables.

47
 When designing cable cross-sections, take local regulations into account.

Connection conditions:

1 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.

2 Once the oxide layer is removed, rub the end of the cable with a neutral
grease, such as non-acidic and non-alkaline Vaseline
3 Immediately connect the cable end to the terminal

IMPORTANT!Repeat the procedure if the cable has been disconnected and is to

be re-connected.

AC terminals PE Ground conductor / earthing

L1-L3 Phase conductor
N Neutral conductor

Max. cross-section of each conductor

cable:
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

M32 (Ø 18-25 mm) mounted The AC cables can be connected to

M32 (Ø 7-15mm) enclosed the AC terminals without ferrules.
Fronius Symo Advanced
M32 (Ø 18-25 mm) mounted
M32 (Ø 7-15 mm) enclosed

IMPORTANT! When using ferrules for AC cables with a cross-section of 16 mm²,

the ferrules 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.

For a power category of 15-17.5 kW, an M32 PG gland is fitted (ø 18-25 mm) and
an M32 PG gland (ø 7-15 mm) supplied.

Cross section of When using an M32 metric screw joint (reducer removed):
the AC cable Cable diameter 11 - 21 mm
(with a cable diameter of 11 mm the strain-relief force is reduced from 100 N to
a maximum of 80 N)

With cable diameters greater than 21 mm, the M32 screw joint must be replaced
by an M32 screw joint with a larger clamping area - item number: 42,0407,0780 –
strain-relief device M32x1.5 clamping area 18–25.

48
Connecting the IMPORTANT!

EN
inverter to the - Form loops with the AC cables when connecting them to the AC terminals.
public grid (AC) - 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

inverter.

IMPORTANT!
- Make sure that the grid's neutral conductor is grounded. This may not be the
case for IT grids (insulated grids with no earthing); it will then not be possible
to use the inverter.
- The neutral conductor must be connected in order to operate the inverter. A
neutral conductor that is too small may adversely affect the inverter feeding
energy into the grid. The neutral conductor must have an amperage of at
least 1 A.

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.

1 2

min. 80°C / 176 °F

3 The fastening screw must also be

tightened for an unassigned ground
conductor (PE) connection.

IMPORTANT! Observe the torque val-

ues marked on the side underneath
the terminals.

Torque (Nm / lbf.in.) → see information

printed next to the terminal

49
 If AC cables are laid over the shaft of
the DC main switch or across the con-
nection block of the DC main switch,
they may be damaged when the invert-
er is swung in or they may even prevent
the inverter from being fully swung in.
IMPORTANT! Do not lay the AC cable
over the shaft of the DC main switch!
Do not lay the AC cable across the DC
main switch connection block or the
AC connection block!
AC cable must not protrude over the
edge of the housing.

If overlength AC or DC cables are to be laid in loops in the connection area, at-

tach the cables with cable ties to the eyelets provided on the top and bottom of
the connection block.

Maximum fuse
rating on altern-
ating current
side

Pha Maximum output overcur-

Inverter ses AC output rent protection
Symo Advanced 10.0-3-M 3 10,000 W C 80 A
Symo Advanced 12.5-3-M 3 12,500 W C 80 A
Symo Advanced 15.0-3-M 3 15,000 W C 80 A
Symo Advanced 17.5-3-M 3 17,500 W C 80 A
Symo Advanced 20.0-3-M 3 20,000 W C 80 A

50
 EN
IMPORTANT!Local regulations, the electricity retailer or other factors may re-
quire a residual-current protective device in the AC connection lead.
A type A residual-current circuit breaker with a trip current of at least 100 mA is
generally sufficient in this case. In particular cases, and depending on local
factors, however, the type A residual-current circuit breaker may trip at the
wrong time. For this reason, Fronius recommends that a residual-current circuit
breaker that is suitable for frequency converters should be used.

51
Connection variants on multi-MPP tracker invert-
ers

General In the case of inverters with multiple MPP trackers like the Fronius Symo Ad-
vanced –M, there are 2 independent DC inputs (MPP trackers) available. These
two MPP trackers can be wired with a different number of modules.

IMPORTANT! The number of PV modules per MPP tracker per string connection
should be the same.

There are 3 terminals for DC+ per MPP tracker. In total there are six terminals
for DC-.

In the case of inverters with single MPP trackers like the Fronius Eco, there is 1
DC input (MPP tracker) available. The number of PV modules per string connec-
tion should be the same. For the MPP tracker, there are 6 terminals for DC+ and
6 terminals for DC-.

Multi MPP Multi MPP tracker mode on both MPP tracker inputs:
Tracker

PV 1
PV 2

DC-1 DC-2
* IDC NENN / MPP
DC+1 DC+2
+1 +2
DC+1 DC+2 DC-
1 2 3 4 5 6
1 2 3 1 23

Connecting two solar module fields to an inverter with multiple MPP trackers

MPP tracker Input current

Symo Advanced ROW Symo Advanced ROW
DC input 10-12 15-20
If an AFCI (AFPE) according to IEC63027 is prescribed in your installation,
an input current per string of maximum 12 A is permitted.
MPP1
27 A (IDC NOMINAL) 33 A (IDC NOMINAL)
DC+1
MPP2 16.5 A (IDC NOMINAL)
DC+2 27 A (IDC NOMINAL)
14 A (IDC NOMINAL) if
< 420 VDC

Divide the solar module strings between the two MPP tracker inputs (DC+1 and
DC+2). The DC- terminals can be used however you wish, as they are internally

52
connected. A clearly numbered connection, but also at the DC terminal, makes it
easier to find the correct string, e.g. during an inspection. Set the MPP tracker 2

EN
to the "On" during initial commissioning. The user can of course also do this later
in the Basic menu of the inverter.

Single MPP tracker mode on both MPP tracker inputs:

If the solar module strings are connected to a string combiner box (GAK - gener-
ator junction box) and the distance to the inverter is bridged by means of a DC
string, this DC string can be connected to the inverter as follows.

Jumpering
With jumpering, the MPP tracker 1 and
MPP tracker 2 can be jumpered to-
gether. This takes place as shown in
the image via the connection DC+1
(Pin2) to DC+2 (Pin1).

IMPORTANT! The MPP tracker 2 must

be set to OFF. This can be checked in
the Basic menu of the inverter.
DC+1(Pin2) DC+2(Pin1)
IMPORTANT! The cable diameter of
the DC connection cable and the
jumpering must be the same. Jumper-
ing of the DC- terminal is not neces-
sary because it is jumpered internally.

DC Con Kit 25

If your installation requires an AFCI (AFPE) according to IEC63027, do not use a

DC Con Kit.

The Fronius DC Con Kit 25 (4,251,015) can be used to connect a solar module
string with a cross-section of up to 25 mm² to the inverter.
Set the MPP tracker 2 to "OFF" during
initial commissioning. This can also be
done later in the Basic menu of the in-
verter. By using the DC Con Kit 25, the
DC strings of the connected DC lines
are divided equally between both in-
puts.

53
 PV cable connection torque DC Con
Kit 25: 5.5 Nm / 50 lb-in

DC Con Kit 35

If your installation requires an AFCI (AFPE) according to IEC63027, do not use a

DC Con Kit.

The Fronius DC Con Kit 35 (4,251,029) can be used to connect a PV string with a
cross-section of up to 35 mm² to the inverter.
Set the MPP tracker 2 to "OFF" during
initial commissioning. This can also be
done subsequently in the Basic menu
of the inverter.
By using the DC Con Kit 35, the DC
strings of the connected DC lines are
divided equally between the two in-
puts.

PV cable connection torque DC Con

Kit 35: 3 Nm

54
Connecting solar module strings to the inverter

EN
Safety
WARNING!

Danger due to incorrect operation and incorrectly performed work.

This can result in serious injury and damage to property.
▶ Only qualified personnel 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 com-
missioning 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.
▶ Prior to any connection work, disconnect the inverter on the AC side and the
DC side.
▶ Only an authorised electrical engineer is permitted to connect this equip-
ment to the public grid.

WARNING!

Danger from 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 connection 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 another before carrying out any maintenance or service tasks.
▶ The power stage set, which is enclosed in a separate housing, must only be
disconnected 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.

CAUTION!

Danger due to incorrectly tightened terminals.

This may result in heat damage to the inverter, which may lead to fire.
▶ When connecting AC and DC cables, ensure that all the terminals are
tightened to the specified torque.

CAUTION!

Danger due to overloading.

This may result in damage to the inverter.
▶ The maximum amperage when connecting to a single DC terminal is 33 A.
▶ Connect the DC+ and DC- cables to the DC+ and DC- terminals on the in-
verter, taking care to ensure that the polarity is correct.
▶ Observe the maximum DC input voltage.

IMPORTANT! The solar modules connected to the inverter must comply with the
IEC 61730 Class A standard.

55
 IMPORTANT! When photovoltaic modules are exposed to light, they supply cur-
rent to the inverter.

General com- To enable suitable PV modules to be chosen and to use the inverter as efficiently
ments regarding as possible, it is important to bear the following points in mind:
PV modules - If insolation is constant and the temperature is falling, the open-circuit
voltage of the PV modules will increase. The open-circuit voltage must not
exceed the maximum permissible system voltage. If the open-circuit voltage
exceeds the specified values, the inverter will be destroyed and all warranty
claims will be forfeited.
- The temperature coefficients on the data sheet of the PV modules must be
observed.
- Exact values for sizing the solar modules can be obtained using suitable cal-
culation tools, such as the Fronius Solar.creator (creator.fronius.com).

IMPORTANT! Before connecting up the solar modules, check that the voltage
for the solar modules specified by the manufacturer corresponds to the actual
measured voltage.

DC terminals DC = Max. cross-section of each DC cable:

DC1+ DC2+ DC-
* 16 mm²

Min. cross-section of each DC cable:

2.5 mm²
* min. 2,5 mm² - 16 mm²
The DC cables can be connected to
the DC terminals without ferrules.
DC Con Kit 25
6 - 25 mm² IMPORTANT! When using ferrules for
DC cables with a cross-section of 16
mm², the ferrules must be crimped
DC Con Kit 35 with a right-angled cross-section.
> 16 - 35 mm² The use of ferrules with insulating col-
lars is only permitted up to a max.
cable cross-section of 10 mm².

For double insulated DC connection

min. 70 °C / 167 °F leads with a cable diameter greater
than 6 mm, 70 mm of the outer jacket
D > 6 mm must be stripped in order to connect
15 mm
the cable to the DC terminal.

70 mm

IMPORTANT! To ensure effective

D1 D1 strain relief of the solar module
strings, only use cables with identical
cross-sections.
D2 D1
D1
D3

Connecting alu- The DC-side terminals are suitable for connecting single-wire, round aluminium
minium cables cables. Because of the formation of a non-conductive oxide layer due to the re-

56
 action of aluminium with air, the following points must be considered when con-
necting aluminium cables:

EN
- the reduced rated currents for aluminium cables
- the connection conditions listed below

IMPORTANT! Always follow the cable manufacturer instructions when using alu-
minium cables.

IMPORTANT! When designing cable cross-sections, take local regulations into

account.

Connection conditions:

1 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.

2 Once the oxide layer is removed, rub the end of the cable with a neutral
grease, such as non-acidic and non-alkaline Vaseline
3 Immediately connect the cable end to the terminal

IMPORTANT! Repeat the procedure if the cable has been disconnected and is to
be re-connected.

Solar module
CAUTION!
strings - check-
ing the polarity Danger due to incorrect polarity and voltage.
and voltage This may result in damage to the inverter.
▶ Check the polarity and voltage of the solar module strings before making the
connection. The voltage must not exceed the following values:
▶ When installed between 0 and 2000 m above sea level: 1000 V
▶ When installed between 2001 and 2500 m above sea level: 950 V
▶ When installed between 2501 and 3000 m above sea level: 900 V
▶ When installed between 3001 and 3400 m above sea level: 850 V
▶ the Fronius Symo Advanced must not be installed at an altitude exceeding
3400 m above sea level

57
Connecting the IMPORTANT! Only break out as many target break points as the number of
solar module cables that are provided (e.g. if there are 2 DC cables, then break out 2 recesses).
strings to the in-
verter IMPORTANT! Fronius Eco: check the string fuses used (type and rating) before
connecting the solar module strings to the inverter.

1 2

2.5 - 10 mm²

10 – 25* / 35* mm²

* DC Con Kit 25 = 25 mm²
DC Con Kit 35 = 35 mm²

3 4
min. 70 °C / 167 °F

D > 6 mm
15 mm

70 mm

D1 D1

D2 D1
D1
D3

5 6

58
7 IMPORTANT! Observe the torque val-
ues marked on the side underneath

EN
the terminals.

8 9

If DC cables are laid over the shaft of

the DC main switch or across the con-
nection block of the DC main switch,
they may be damaged when the invert-
er is swung in or they may even prevent
the inverter from being swung in.

IMPORTANT!
Do not lay DC cables over the shaft of
the DC main switch
or across the AC connection block or
the DC main switch connection block.
DC cable must not protrude beyond
the edge of the housing!

59
Data communication

Permitted cables S0 USB IOs LAN

Solar Net
for the data
max. 30 m max. 30 m max. 3 m max. 30 m max. 300 m
communication
Unshielded Shielded Unshielded Unshielded Shielded
area

max. 30 m
Unshielded
Relay

Routing data IMPORTANT! Operating the inverter with one option card and two broken-out
communication option card slots is not permitted.
cables To cater for this eventuality, a suitable blanking cover (item number
42,0405,2094) is available from Fronius as an option.

IMPORTANT! If data communication cables are wired into the inverter, observe
the following points:
- Depending on the number and cross-section of the data communication
cables that are being introduced, take the relevant blanking plugs out of the
sealing insert and insert the data communication cables.
- The relevant blanking plugs must be inserted into the free openings on the
sealing insert.

1 2

60
 3 4

EN
Installing the
WARNING!
Datamanager in
the inverter Danger of residual voltage from capacitors.
This may result in an electric shock.
▶ Wait for the capacitors to discharge. The discharge time is five minutes.

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
earthing the housing and must NOT be replaced by any other screws that do
not provide a reliable ground conductor connection.

IMPORTANT! Observe the ESD guidelines when handling option cards.

IMPORTANT! Only one Fronius Datamanager in master mode is permitted per

Fronius Solar Net ring. Switch any other Fronius Datamanagers to slave mode or
remove them.
Seal off the unoccupied option card slot by replacing the cover (item number
42,0405,2094); alternatively, use an inverter without a Fronius Datamanager
(light version).

IMPORTANT! Only break out one

opening for the PC board when in-
stalling a Datamanager in the inverter.

61
 1 2

3 4

62
Attaching the inverter to the mounting bracket

EN
Attaching the in-
WARNING!
verter to the
mounting brack- Danger from inadequate ground conductor connection.
et This can result in serious injury and damage to property.
▶ The housing screws provide a suitable ground conductor connection for
earthing the housing and must NOT be replaced by any other screws that do
not provide a reliable ground conductor connection.

Two people are required to attach the inverter to the mounting bracket, as it is
extremely heavy.

IMPORTANT! For safety reasons, the inverter is fitted with a latch that prevents
the inverter from being swung into the mounting bracket unless the DC main
switch is switched off.
- Never attach the inverter to the mounting bracket or swing it in unless the
DC main switch is switched off.
- Never use force to attach the inverter or swing it in.

The fastening screws in the data communication area of the inverter are used for
securing the inverter to the mounting bracket. Correctly tightened fastening
screws are a prerequisite if proper contact is to be established between the in-
verter and mounting bracket.

CAUTION!

Danger due to incorrectly tightened fastening screws.

This may result in arcs occurring when the inverter is in operation, which may
lead to fire.
▶ Always use the specified torque when tightening the fastening screws.

Warranty claims will be void if the

screws are tightened using an incorrect
torque.

Carry out a visual inspection of the seal on the DATCOM mounting bracket cover
and check for any damage. A damaged or faulty DATCOM cover must not be fit-
ted to the device.

63
 1 2

3 4

64
5

EN
6

65
Starting for the first time

Starting the in-

WARNING!
verter for the
first time Danger due to incorrect operation and incorrectly performed work.
This can result in serious injury and damage to property.
▶ Only qualified personnel 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 com-
missioning the equipment.

When starting the inverter for the first time, it is necessary to select various
setup settings.

If setup is interrupted before it is complete, it can be restarted by means of an

AC reset. An AC reset can be carried out by switching the automatic circuit
breaker off and on again.

The country setup can only be set when using the inverter for the first time. If
the country setup needs to be changed at a later date, please contact your Tech-
nical Support team.

2 3

Select Country
50 Hz
International 50 Hz

1 2 1 2

66
* Country setup examples

EN
The available country setups may change during a software update. Therefore, the following list may
not exactly match the display on the inverter.
50Hz International 50 Hz DE2P Deutschland (> 4,6 kVA) IT6 Italia ≤ 11,08 kVA 2019
60Hz International 60 Hz - cosPhi(P) 0,9 IT7 Italia > 11,08 kVA 2019
AT1E Österreich cosphi = 1 DE2U Deutschland (> 4,6 kVA) ITM1 Italia IT - MT 2019
AT2E Österreich cosphi P 0,9 - Q(U) JO98 Jordan G98
AT3E Österreich: Q(U) DEM2 Deutschland DE MS ext. JO99 Jordan G99
AUS1 Australia AUS1 - AS/ NA-S KR Republic of Korea
NZS4777.2 DK B Danmark 50kW-1.5MW LK Sri Lanka
AUS2 Australia AUS2 - VIC DKA1 West Denmark - 125kW MG50 Microgrid 50 Hz
AUS3 Australia AUS3 - NSW DKA2 East Denmark - 125kW MG60 Microgrid 60 Hz
Ausgrid DU1 Dubai < 10 kW NI98 Northern Ireland G98
AUS4 Australia AUS4 - QLD DU2 Dubai 10 kW - 400 kW NI99 Northern Ireland G99
AUS5 Australia AUS5 - SA DU3 Dubai > 400 kW NIE1 Northern Ireland < 16 A
AUS6 Australia AUS6 - WA - EE Estonia NIE2 Northern Ireland > 16 A
WP ES España NL Nederland
AUS7 Australia AUS7 - WA - ESOS Territorios españoles en NO Norge
HP el extranjero (Spanish NZ New Zealand
AUA Australia Region A 2020 Oversea Islands) PF1 Polynésie française
AUB Australia Region B 2020 EULV EU - low voltage (French Polynesia)
AUC Australia Region C 2020 EUMV EU - medium voltage PL Poland
BE Belgique / België FI Finland PT Portugal
BR2 Brasil: ≤ 6 kVA FR France RO România
BR3 Brasil: > 6 kVA FRMV France MV SA Saudi Arabia
CH Schweiz / Suisse / FROS Territoire d’Outre-Mer SE Sverige
Svizzera / Svizra (French Oversea Is- SI Slovenija
CL Chile lands) SK Slovensko
CY Κύπρος / Kıbrıs / Cyprus G98 Great Britain GB - G98 TH M Thailand MEA
CZ Česko G99 Great Britain GB - G99 TH P Thailand PEA
CZMV Ceske Vysoke Napeti GB Great Britain TR Türkiye
DE1F Deutschland (≤ 4,6 kVA) GR Ελλάδα TRMV Türkiye orta g.
- konst. cosPhi(1) HR Hrvatska UA Україна
DE1P Deutschland (≤ 4,6 kVA) HU Magyarország ZA South Africa < 100kVA
- cosPhi(P) 0,95 IE Éire / Ireland ZA South Africa < 1 MVA
DE2F Deutschland (> 4,6 kVA) IL ‫ إسرائيل‬/ ‫ ישראל‬/ Israel
- konst. cosPhi(1) IN India

4 CONFIG 5

1 2

67
 6 7 BASIC
MPP TRACKER 2

1 2 1 2

8 9

68
Notes regarding maintenance

EN
Maintenance IMPORTANT! When installed outdoors in a horizontal position: once a year,
check that all screw joints are tight!

Maintenance and servicing may only be carried out by Fronius-trained service

technicians.

Cleaning Clean the inverter as required with a damp cloth.

Do not use cleaning agents, abrasives solvents or similar to clean the inverter.

69
Australian Conduits

Tightly sealing Ensure that the conduits are tightly sealed.

the conduits

Seal conduits NOTE!

Condensation within the conduits can
damage the inverter or components of
the photovoltaic systems.

To avoid undesirable air circulation and

condensation in the conduits:
▶ Seal all conduits being used with a
permanently elastic sealant
▶ Seal every incoming and outgoing
conduit
▶ Seal both conduit ends.

1
Inverter housing
Conduit fitting

Permanently elastic

Inside
sealant

1 1

Outside

DC=

1 3
Conduit
Conduit
AC~

4 Seal all used conduits!

Conduit Seal every incoming and every outgoing conduit!
Permanently elastic sealant
Seal both conduit ends!

70
Serial Number Sticker for Customer Use

EN
Serial number The serial number of the inverter is
sticker for cus- located on the rating plate on the bot-
tomer use tom of the inverter.
Depending on the installation position
of the inverter, the serial number can
be difficult to access or read, e.g. if the
inverter has been installed in a dark or
shaded area.

Two serial number stickers are en-

closed with the inverter's installation
instructions:
* 57 x 20 mm
** 67 x 20 mm

These can be affixed by the customer

in a visible location of their choosing,
e.g. on the front of the inverter or on
the Operating Instructions.

Application example:
Serial number sticker on the Operating
Instructions or on the front of the in-
verter

For Australia only:

Affix the DRM Australia sticker in the
Datamanager area.

71
72
Settings

73
74
Navigation at the menu level

EN
Activating dis- 1 Press any key
play backlighting
The display backlighting is activated.

There is an option under "Display Settings - Backlighting" in the SETUP menu

to set the display backlighting so that it is on all the time or off all the time.

Automatic deac- If two minutes pass without any button being pressed, the display backlighting
tivation of dis- switches off automatically and the inverter goes to the "NOW" menu item (as-
play backlight- suming the display backlighting is set to AUTO).
ing / changing to
the "NOW" menu The automatic selection of the "NOW" menu item can happen from any position
item on the menu level, unless the inverter was manually switched into the "Standby"
operating mode.

After automatically selecting the "NOW" menu item, the current power of feed-
ing in is displayed.

Opening the 1 Press "ESC"

menu level

The display switches to the menu level.

2 Using the "Left" or "Right" keys se-

lect the desired menu item

3 Press the "Enter" key to select the

desired menu item

The menu items

- NOW
Displays real-time values
- LOG
Data recorded today, during the current calendar year and since the inverter
was started for the first time
- GRAPH
Day characteristic displays a plot showing the output power during the day.
The time axis is scaled automatically. Press the "Back" key to close the dis-
play
- SETUP
Setup menu
- INFO
Information about the device and the software

75
Values displayed Output power (W) - depending on the device type (MultiString), when the
under the NOW
Enter key is pressed, the individual output powers for MPP Tracker 1 and
menu item
MPP Tracker 2 (MPPT1 / MPPT2) are displayed
AC reactive power (VAr)
Grid voltage (V)
Output current (A)
Grid frequency (Hz)
Solar voltage (V) - U PV1 from MPP Tracker 1 and U PV2 from MPP Tracker 2
(MPPT1 / MPPT2), if MPP Tracker 2 is activated (see "The Basic menu" - "Menu
items in the Basic menu")
Solar power (A) - I PV1 from MPP Tracker 1 and I PV2 from MPP Tracker 2
(MPPT1 / MPPT2), if MPP Tracker 2 is activated (see "The Basic menu" - "Menu
items in the Basic menu")
Fronius Eco: The total current from both measuring channels is displayed. Both
channels are shown separately in SolarWeb.
Time date - Time and date on the inverter or in the Fronius Solar Net ring

Values displayed Energy fed in (kWh / MWh)

under the LOG Energy fed into the grid during the period in question.
menu item
When the Enter key is pressed, the individual output powers for MPP
Tracker 1 and MPP Tracker 2 (MPPT1 / MPPT2) are displayed, if MPP Tracker 2
is activated (see "The Basic menu" - "Menu items in the Basic menu")

There may be discrepancies compared with values displayed on other measur-

ing instruments because of differences in measuring methods. As far as the
billing of the energy fed in is concerned, the only binding display values are
those produced by the calibrated measuring instrument provided by the utility
company.
Max. output power (W)
Largest amount of energy fed into the grid during the period in question.
When the Enter key is pressed, the individual output powers for MPP
Tracker 1 and MPP Tracker 2 (MPPT1 / MPPT2) are displayed, if MPP Tracker 2
is activated (see "The Basic menu" - "Menu items in the Basic menu")
Yield
Amount of money earned during the period in question

Like the "Energy fed in" figure, the yield figure may also exhibit discrepancies
compared with other measured values.

The subitem "Energy yield" in the "Menu items in the Set-up menu" section ex-
plains how to select a currency and charge rate.
The factory setting depends on the respective country setup.
CO2 savings
CO2 emissions saved during the period in question

The subitem "CO2 factor" in the "Menu items in the Set-up menu" section ex-
plains how to set the CO2 factor.

76
Maximum grid voltage (V) [phase indicator - neutral or phase - phase]
Highest grid voltage measured during the period in question

EN
When the Enter key is pressed, the individual grid voltages are listed
Maximum solar voltage (V)
Highest solar module voltage measured during the period in question
When the Enter key is pressed, the voltage values for MPP Tracker 1 and
MPP Tracker 2 (MPPT1 / MPPT2) are displayed, if MPP Tracker 2 is activated
(see "The Basic menu" - "Menu items in the Basic menu")
Operating hours
Length of time the inverter has been working (HH:MM).

IMPORTANT! In order for the day and year values to be displayed correctly,
the time must be set accurately.

77
SETUP menu item

Initial setting The inverter is pre-configured after commissioning has been completely carried
out (e.g. using the Installation Wizard) according to the country setup.

The SETUP menu item allows the initial settings of the inverter to be changed
easily to bring it in line, as closely as possible, with the preferences and require-
ments of the user.

Software up- IMPORTANT! As a result of software updates, you may find that your device has
dates certain functions that are not described in these Operating Instructions, or vice
versa. Certain illustrations may also differ slightly from the actual controls on
your device, but these controls function in exactly the same way.

Navigating the Entering the SETUP menu item

SETUP menu
item GRAPH 1 At the menu level, use the "Left" or
"Right" keys to select the "SETUP"
menu item
2 Press the "Enter" key

The first entry under the SETUP menu item

is displayed:
"Standby"

Relay

Scrolling between the entries

3 Use the "Up" and "Down" keys to
scroll between the available entries

Relay

Exiting an entry

GRAPH 4 To exit a menu entry, press the "Back"

key

The menu level appears

If no key is pressed for 2 minutes:

78
 - The inverter switches from wherever it is on the menu level back to the
"NOW" display mode (exception: "Standby" Setup menu item).

EN
- The display backlighting goes out unless it has been set to ON in Display Set-
ting - Backlighting (see Display Setting - Backlighting).
- The power currently being fed in is displayed or the currently active state
code is displayed.

Setting menu 1 Open the desired menu

entries, general
2 Use the 'Up' or 'Down' keys to select the desired menu item
3 Press "Enter"

The available settings are displayed: The first digit of a value to be set
flashes:

4 Use the 'Up' or 'Down' buttons to 4 Use the 'Up' or 'Down' keys to se-
select the desired setting lect a value for the first digit
5 Press the 'Enter' key to save and 5 Press "Enter"
apply the setting.
The second digit of the value flashes.
To discard the setting, press the
'Esc' key. 6 Repeat steps 4 and 5 until ...

the whole value to be set flashes.

7 Press "Enter"
8 Repeat steps 4 - 6 as required for
units or other values that are to
be set until the appropriate unit
or the value flashes.
9 Press the 'Enter' key to save and
apply the changes.

To discard the changes, press the

'Esc' key.

The currently selected menu item is The currently selected menu item is
displayed. displayed.

Application ex- 1 Select "Clock" from the Setup menu

ample: Setting
.
the time
2 Press the "Enter" key

79
 An overview of the values that can be
changed is displayed.
3 Use the "Up" and "Down" keys Select
"Set time"
4 Press the "Enter" key

The current time appears. (HH:MM:SS, 24-

hour clock), the "tens" digit for the hour will
flash.
5 Use the "Up" and "Down" keys to se-
lect a value for the first digit of the code
6 Press the "Enter" key

The "units" digit for the hour will flash.

7 Repeat steps 5 and 6 to set the "units"
digit for the hour, for the minutes and for
the seconds until...

the set time starts flashing.

8 Press the "Enter" key

The time is applied and the overview of val-

ues that can be changed is displayed.
4 Press the "Esc" key

The "Clock" item on the Setup menu ap-

pears.

80
Menu items in the Set-up menu

EN
Standby Manual activation / deactivation of Standby mode

- No energy is fed into the grid.

- The Startup LED will show steady orange.
- In the display, STANDBY / ENTER are alternately displayed
- In Standby mode, no other menu item at menu level can be accessed or ad-
justed.
- The automatic switchover into the "NOW" display mode after 2 minutes of
keyboard inactivity does not occur.
- Standby mode can only be terminated manually by pressing the "Enter" key.
- Pressing "Enter" at any time will cause energy to resume feeding into the
grid, as long as there is no error (state code)

Switching off Standby mode (manually switching off feeding energy into the
grid):
1 Select the "Standby" item
2 Press "Enter" function key

"STANDBY" and "ENTER" appear alternately on the display.

Standby mode is now active.
The Startup LED shows steady orange.

Resuming feeding energy into the grid:

In standby mode, the display alternates between 'STANDBY' and 'ENTER'.
1 Press the "Enter" function key to resume feeding energy into the grid

The "Standby" menu item is displayed.

At the same time, the inverter enters the startup phase.
The operating state LED shows steady green when feeding energy into the grid
has been resumed.

DATCOM Checking data communications, entering the inverter number, protocol settings

Setting range Status / inverter number / protocol type

Status
Indicates data communication is taking place via Fronius Solar Net or that a
data communications error has occurred
Inverter number
Sets the number (= address) of the inverter in a system with several inverters

Setting range 00 - 99 (00 = inverter address 100)

Factory setting 01

IMPORTANT! If a number of inverters are linked together in a data communic-

ations system, assign a unique address to each one.
Protocol type
Specifies the communications protocol to be used to transfer the data:

81
 Setting range Solar Net / Interface *
Factory setting Fronius Solar Net

* The protocol type "Interface" only functions when there is no Datamanager

card in the inverter. All Fronius Datamanager cards should be removed from
the inverter.

USB Running firmware updates or saving detailed information from the inverter to the
USB flash drive

Setting range Safely remove hardware / Software update / Logging in-

terval

Safely remove hardware

To remove a USB flash drive from the USB A socket on the plug-in data commu-
nications card without losing any data.

The USB flash drive can be removed:

- If the OK message appears
- when the "Data transfer" LED stops flashing or comes on steady

Software update
To update the inverter firmware using a USB flash drive.

Procedure:
1 Download the relevant firmware update file "froxxxxx.upd"
(under http://www.fronius.com; xxxxx stands for the version number)

NOTE!
To successfully update the inverter software, the USB flash drive provided for
the purpose must not have a hidden partition or any encryption (see chapter
"Suitable USB flash drives").

2 Save the firmware update file to the highest data level of the USB flash drive
3 Open the lid of the data communication area on the inverter
4 Plug the USB flash drive containing the firmware update file into the USB
socket in the inverter's data communication area
5 Select "USB" from the Setup menu, followed by "Software update"
6 Press the "Enter" key
7 Wait until the version currently installed on the inverter and the new firm-
ware version are displayed for comparison:
- 1st page: Recerbo software (LCD), key controller software (KEY), country
setup version (Set)
- 2nd page: Power stage set software (PS1/PS2)
8 Press the "Enter" function button after each page

The inverter starts copying the data.

"BOOT" and the progress of storing the individual tests expressed in % are dis-
played until all the data for all the electronic modules has been copied.

Once copying is complete, the inverter updates the electronic modules as re-
quired in sequence.
"BOOT", the affected modules and the update progress in % are displayed.

82
 The final step is for the inverter to update the display.
The display remains dark for approx. 1 minute while the monitoring and status

EN
LEDs flash.

Once the firmware update is complete, the inverter enters its start-up phase be-
fore going on to start feeding energy into the grid. Unplug the USB flash drive us-
ing the "Safely remove hardware" function.

When the inverter firmware is updated, any custom settings that were configured
in the Setup menu are retained.

Logging interval
Activate / deactivate the USB logging function and specify a logging interval

Unit Minutes
Setting range 30 min. / 20 min./ 15 min./ 10 min./ 5 min./ No log
Factory setting 30 min.

30 min. The logging interval is 30 minutes; every 30 minutes new

logging data will be saved to the USB flash drive.
20 min.
15 min.
10 min.
5 min. The logging interval is 5 minutes; every 5 minutes new
logging data will be saved to the USB flash drive.

No log No data is saved

IMPORTANT! In order for the USB logging function to work correctly the time
must be set correctly. Setting the time is discussed in the section "Menu items in
the Setup menu" - "Clock".

Relay (floating Status codes (state codes), the status of the inverter (e.g. feeding energy into the
contact switch) grid) or Energy Manager functions can be displayed using the floating switch con-
tact (relay).

Setting range Relay mode / Relay test / Switch-on point* / Switch-off

point*

* these are only shown if the "E-Manager" function has been activated under "Re-
lay mode".

Relay mode
The following functions can be shown using relay mode:
- Alarm function (Permanent / ALL / GAF)
- Active output (ON / OFF)
- Energy Manager (E-Manager)

Setting range ALL / Permanent / GAF / OFF / ON / E-Manager

Factory setting ALL

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 Alarm function:
ALL / Per- Switching the floating switch contact for permanent and tem-
manent: porary service codes (e.g. brief interruption to energy being
fed into the grid, a service code occurs a certain number of
times a day - can be adjusted in the "BASIC" menu)
GAF As soon as GAF mode is selected, the relay is switched on.
The relay opens as soon as the power stage set registers an
error and goes from normally feeding energy into the grid to
being in an error state. This means that the relay can be used
for fail-safe functions.

Application example
It may be necessary to perform phase compensation when us-
ing a single-phase inverter at a multiphase site. If an error oc-
curs on one or several inverters and the connection to the grid
is broken, the other inverters must also be disconnected to
maintain the phase balance. The "GAF" relay function can be
used in conjunction with the Datamanager or an external pro-
tection device to recognise or signal that an inverter is not
feeding in or is disconnected from the grid and to then dis-
connect the remaining inverters from the grid using a telecon-
trol command.
Active output:
ON: The floating NO contact is on all the time the inverter is in op-
eration (as long as the display is not dark or is displaying
something).
OFF: The floating NO contact is off.
Energy Manager:
E-Manager: Further details on the "Energy Manager" function may be
found in the "Energy Manager" section.
Relay test
Function test to determine whether the floating switch contact switches
Switch-on point (only if "Energy Manager" function is activated)
for setting the effective power limit beyond which the floating switch contact is
switched on

Factory setting 1000 W

Setting range Set switch-off point up to the maximum nominal output
of the inverter (W or kW)
Switch-off point (only if "Energy Manager" function is activated)
for setting the effective power limit beyond which the floating switch contact is
switched off

Factory setting 500

Setting range 0 to the set switch-on point of the inverter (W or kW)

Energy Manager The "Energy Manager" (E-Manager) function can be used to activate the floating
(under Relay switch contact in such a way that it functions as an actuator.
menu item) Thus, a consumer that is connected to the floating switch contact can be con-
trolled by specifying a switch-on or switch-off point that depends on the feed-in
power (effective power).

84
 The floating switch contact is automatically switched off:
- If the inverter is not feeding any power into the grid

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- If the inverter is manually switched to Standby mode
- If the effective power is set to < 10% of the nominal output of the inverter.

To activate the Energy Manager function, select the "E-Manager" item and press
the "Enter" key.
When the "Energy Manager" function is running, the "Energy Manager" symbol
will appear in the top left corner of the display:

When the floating NO contact is off (open contact)

When the floating NC contact is on (closed contact)

To deactivate the Energy Manager function, select a different function (ALL /

Permanent / OFF / ON) and press the "Enter" key.

NOTE!
Notes on setting up the switch-on and switch-off points
If the difference between the switch-on and switch-off points is too small, or if
there are fluctuations in effective power, the result may be multiple switching
cycles.

To avoid switching on and off frequently, the difference between the switch-on
and switch-off points should be at least 100 - 200 W.

When choosing the switch-off point, the power consumption of the connected
consumer should be taken into account.

When choosing the switch-on point, the weather conditions and anticipated in-
solation should be taken into account.

Application example
Switch-on point = 2000 W, switch-off point = 1800 W

If the inverter is outputting 2000 W or above, then the floating switch contact on
the inverter is switched on.
If the inverter output falls to below 1800 W, the floating switch contact is
switched off.

This allows useful applications, such as operating a heat pump or an air-condi-

tioning system using as much self-generated power as possible, to be implemen-
ted quickly

Time / Date Set the time, date, the display format and automatic changeover between sum-
mer and winter time

Setting range Set time / Set date / Time display format / Date display
format / Summer/winter time

Set time
Set the time (hh:mm:ss or hh:mm am/pm – depending on the setting for the
time display format)

85
 Set date
Set the date (dd.mm.yyyy or mm/dd/yyyy - depending on the setting for the
date display format)
Time display format
For specifying the time display format

Setting range 12hrs / 24hrs

Factory setting Depends on country setup
Date display format
for specifying the date display format

Setting range mm/dd/yyyy or dd.mm.yy

Factory setting Depends on country setup
Summer/winter time
Activate/deactivate automatic changeover between summer and winter time

IMPORTANT! Only use the automatic summer/winter time changeover func-

tion if the Fronius Solar Net ring does not include any LAN- or WLAN-compat-
ible system components (e.g. Fronius Datalogger Web, Fronius Datamanager or
Fronius Hybridmanager).

Setting range on / off

Factory setting on

IMPORTANT! The time and date must be set accurately in order for the day
and year values and for the day characteristic to be displayed correctly.

Display settings Setting range Language / Night mode / Contrast / Illumination

Language
Set language for display

Setting range English, German, French, Spanish, Italian, Dutch,

Czech, Slovakian, Hungarian, Polish, Turkish, Por-
tuguese, Romanian
Night mode
Night mode controls Fronius DATCOM and inverter display operation during
the night or when the DC voltage is insufficient

Setting range AUTO / ON / OFF

Factory setting OFF

AUTO: Fronius DATCOM mode is always in effect as long as there is a

Fronius Datamanager connected in an active and uninterrupted
Fronius Solar Net.
The inverter display remains dark during the night, but can be ac-
tivated by pressing any function button.

86
 ON: Fronius DATCOM mode is always in effect. The inverter supplies 12
V of DC voltage continuously to power the Fronius Solar Net. The

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display is always active.

IMPORTANT! If Fronius DATCOM night mode is set to ON or

AUTO when there are Fronius Solar Net components connected,
the inverter's current consumption during the night will increase to
around 7 W.

OFF: Fronius DATCOM will not run at night, the inverter therefore does
not require any power during the night to supply the Fronius Solar
Net with energy.
The inverter display is switched off during the night and the Fronius
Datamanager is not available. To nevertheless activate the Fronius
Datamanager, switch the inverter off and on again at the mains and
press any function button on the inverter display within 90
seconds.
Contrast
Set the contrast on the inverter display

Setting range 0 - 10
Factory setting 5

Since the contrast is temperature-dependent, it may be necessary to adjust

the setting under the "Contrast" menu item when the environmental conditions
change.
Illumination
Initial setting for inverter display illumination

The "Illumination" menu item only relates to the inverter display backlighting.

Setting range AUTO / ON / OFF

Factory setting AUTO

AUTO: The inverter display backlighting is activated by pressing any key. If

no key is pressed for 2 minutes, the display backlighting will go off
again.
ON: The inverter display backlighting remains permanently on when the
inverter is active.
OFF: The inverter display backlighting is permanently switched off.

ENERGY YIELD The following settings can be changed/set here:

- Counter deviation / Calibration
- Currency
- Feed-in tariff
- CO2 factor

Setting range Currency / Feed-in tariff

87
 Counter deviation / calibration
Calibrating the counter
Currency
Set the currency

Setting range 3 characters, A-Z

Feed-in tariff
Set the remuneration rate for energy fed into the grid

Setting range 2 digits, 3 decimal places

Factory setting (depends on country setup)
CO2 factor
Setting the CO2 factor of the energy fed into the grid

Fan To check that the fan is working correctly

Setting range Test fan #1 / Test fan #2 (depending on the device)

- Use the "Up" and "Down" keys to select the desired fan
- Testing of the selected fan is initiated by clicking "Enter".
- The fan will continue to run until the operator exits the menu by pressing
"Esc".

IMPORTANT! Nothing will show on the inverter display if the fan is working. The
only way to check how the fan is working is by listening and feeling.

88
The INFO menu item

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Measured values PV Ins.- Insulation resistance of the PV system
Ext. Lim. - external Limitation
U PV 1 / U PV 2* (U PV 2 is not available on the Fronius Symo 15.0-3 208)
Current DC voltage at the DC input terminals, even if the inverter is feeding no
power into the grid whatsoever (from the 1st or 2nd MPP Tracker)
* MPP Tracker 2 must be switched to ON via the Basic menu
GVDPR - Grid voltage-dependent power reduction
Fan #1 - Percentage of target output for fan

PSS status IMPORTANT! Due to the low level of insolation early in the morning and in the
evening, the status codes STATE 306 (Power low) and STATE 307 (DC low) are
displayed routinely at these times of day. These status codes do not indicate any
kind of fault at this point in time.

The status of the most recent inverter fault can be displayed.

- Press the "Enter" key to see the status of the power stage set and the most
recent fault
- Use the "Up" and "Down" keys to scroll through the list
- Press the "Back" key to close the status and fault list

Grid status The five most recent grid faults can be displayed:
- Press the 'Enter' key to see the five most recent grid faults
- Use the 'Up' and 'Down' keys to scroll through the list
- Press the 'Back' key to close the grid fault display

Device informa- For displaying the settings that will be of relevance to a power supply company.
tion The values shown will depend on the country setup or the device-specific set-
tings of the inverter.

Display area General / Country-specific setting / MPP tracker / Grid

monitoring / Grid voltage limits / Grid frequency limits /
Q-mode / AC power limit / AC voltage derating / Fault
Ride Through

General: Device type - the exact name of the inverter

fam. - inverter family of the inverter
serial number - serial number of the inverter

89
 Country-specific Setup - specified country setup
setting:
Version - version of country setup

Origin activated - indicates that the normal country-

specific setup is activated.

Alternat. activated - indicates that the alternative coun-

try-specific setup is activated (for Fronius Symo Hybrid
only)

Group - group for updating the inverter software

MPP Tracker: Tracker 1 - indicates the set tracking behaviour (MPP
AUTO / MPP USER / FIX)
Tracker 2 - indicates the set tracking behaviour (MPP
AUTO / MPP USER / FIX)
Grid monitoring: GMTi - Grid Monitoring Time - start-up time of the in-
verter in sec (seconds)

GMTr - Grid Monitoring Time reconnect - reconnection

time in sec (seconds) after a grid fault

ULL - U (voltage) Longtime Limit - voltage limit value in

V (volts) for the 10-minute average voltage value

LLTrip - Longtime Limit Trip - trip time for ULL monitor-

ing, how fast the inverter should switch off
Grid voltage limits UImax - upper inner grid voltage in V (volts)
inner limit value:
TTMax - Trip Time Max - trip time for exceeding the up-
per inner grid voltage limit value in cyl*

UMin - lower inner grid voltage in V (volts)

TTMin - Trip Time Min - trip time for falling below the
lower inner grid voltage limit value in cyl*

*cyl = grid periods (cycles); 1 cyl corresponds to 20 ms

at 50 Hz or 16.66 ms at 60 Hz
Grid voltage limits UMax - upper outer grid voltage in V (volts)
outer limit value
TTMax - Trip Time Max - trip time for exceeding the up-
per outer grid voltage limit value in cyl*

UMin - lower outer grid voltage in V (volts)

TTMin - Trip Time Min - trip time for falling below the
lower outer grid voltage limit value in cyl*

*cyl = grid periods (cycles); 1 cyl corresponds to 20 ms

at 50 Hz or 16.66 ms at 60 Hz

90
 Grid frequency lim- FILmax - upper inner grid frequency in Hz (Hertz)
its:

EN
FILmin - lower inner grid frequency in Hz (Hertz)

FOLmax - upper outer grid frequency in Hz (Hertz)

FOLmin - lower outer grid frequency in Hz (Hertz)

Q-mode: Indicates which reactive power setting is currently act-
ive on the inverter (e.g. OFF, Q / P, etc.)
AC power limit in- Max P AC - maximum output power, which can be
cluding SoftStart in- changed using the "Manual Power Reduction" function
dicator and/or AC
grid frequency de- GPIS - Gradual Power Incrementation at Startup - in-
rating: dicates (%/sec) whether the SoftStart function is active
on the inverter

GFDPRe - Grid Frequency Dependent Power Reduction

enable limit - indicates the set grid frequency in Hz
(Hertz) from when power derating takes place

GFDPRv - Grid Frequency Dependent Power Reduction

derating gradient - indicates the set grid frequency in
%/Hz, how strong power derating is
AC voltage derating: GVDPRe - Grid Voltage Depending Power Reduction en-
able limit - threshold value in V from which voltage-de-
pendent power derating starts

GVDPRv - Grid Voltage Depending Power Reduction de-

rating gradient - derating gradient %/V with which the
power is reduced

Message - indicates whether the dispatch of an info

message via Fronius Solar Net is active

Version Displays the version and serial numbers of the PC boards in the inverter (e.g. for
service purposes)

Display area Display / Display Software / Integrity Checksum /

Memory Card / Memory Card #1 / Power Stage / Power
Stage Software / EMI Filter / Power Stage #3 / Power
Stage #4

91
Switching the key lock on and off

General The inverter has a key lock function.

When the key lock is active, the Setup menu is not accessible, i.e. the setup data
cannot be changed accidentally (or maliciously).
The code 12321 has to be entered in order to activate / deactivate the key lock.

Switching the 1 Press the "Menu" key

key lock on and
off The menu level appears.

2 Press the unassigned "Menu / Esc" key

5 times

"Access Code" is displayed in the "CODE"

menu; the first digit starts flashing.
3 Enter the code 12321: Use the "Plus" and
"Minus" keys to select a value for the
first digit of the code
4 Press the "Enter" key

The second digit flashes.

Acess Code 5 Repeat steps 3 and 4 for the second,
third, fourth and fifth digits of the access
code until...

the selected code starts flashing.

6 Press the "Enter" key

"Setup Menu Lock" is displayed in the

"LOCK" menu.
7 Use the "Plus" and "Minus" keys to
turn the key lock on or off:

ON = key lock is on (the Setup menu is

not accessible)

OFF = key lock is off (the Setup menu is

accessible)
8 Press the "Enter" key

92
USB Stick as a Data Logger and for Updating In-
verter Software

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USB flash drive If a USB flash drive is connected to the USB A socket it can function as a data-
as a datalogger logger for an inverter.

At any time, the logging data stored on the USB flash drive can be
- imported into the Fronius Solar.access software using the FLD file that was
logged at the same time,
- viewed directly in third-party programs (e.g. Microsoft® Excel) using the CSV
file logged at the same time.

Older versions (before Excel 2007) are limited to a maximum of 65,536 rows.

Further information on "Data on a USB flash drive", "Data volume and storage
capacity" as well as "Buffer memory" can be found at:

® https://manuals.fronius.com/html/4204260426

Data on the USB If the USB flash drive is being used as a data logger, three files will be created
flash drive automatically:

- FRONIUS.sys system file:

This file stores information from the inverter that is irrelevant to the custom-
er. The file must not be deleted separately. Only delete all of the files (sys,
fld, csv) at one time.

- DALO.fld log file:

A log file for reading the data in the Fronius Solar.access software.

Further details on the Fronius Solar.access software can be found in the

"DATCOM Details" operating instructions at http://www.fronius.com

- DATA.csv log file:

A log file for reading the data in a spreadsheet program (e.g.: Microsoft® Ex-
cel)

93
 (1) USB root directory
(2) Fronius inverters (Fronius
Galvo, Fronius Symo, Fronius
Primo or Fronius Eco)
(3) Inverter number - can be set in
the Setup menu under DAT-
COM

If there are several inverters with the

same inverter number, the three files
will be saved in the same folder. A digit
is added to the file name as a suffix
(e.g.: DALO_02.fld)

Data structure on the USB flash drive

Structure of the CSV file:

(1) (2) (3) (4) (5) (6) (7)

(8) (9)

(1) ID
(2) Inverter no.
(3) Inverter type (DATCOM code)
(4) Logging interval in seconds
(5) Energy in watts per second, relative to the logging interval
(6) Inductive reactive power
(7) Capacitive reactive power
(8) Average values during the logging interval (AC voltage, AC current, DC
voltage, DC current)
(9) Additional information

Data volume and A USB flash drive with a storage capacity of 1 GB can record logging data for
storage capacity roughly seven years at a logging interval of five minutes.

CSV file
CSV files can only store 65,535 lines (data records) (up to Microsoft® Excel 2007;
there is no restriction from this version onwards).
At a five-minute logging interval, the 65,535 lines will be written within approx-
imately seven months (CSV data size of approx. 8 MB).

94
 In order to avoid data loss, the CSV file should be backed up to a PC and deleted
from the USB flash drive within this seven-month period. If the logging interval is

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set to a longer period, this time frame will be increased accordingly.

FLD file
The FLD file should not be larger than 16 MB. This will provide enough storage
capacity for approximately six years at a logging interval of five minutes.
If the file exceeds the 16 MB limit, it should be backed up to a PC and all of the
data on the USB flash drive should be deleted.

After backing up and removing the data, the USB flash drive can be reconnected
immediately to resume recording the logging data without any further steps be-
ing required.

IMPORTANT! Using a full USB flash drive can lead to data loss or data being
overwritten. When using USB flash drives, always ensure that there is sufficient
storage capacity on the flash drive.

NOTE!
Risk of USB flash drive becoming full.
This may result in data being lost or overwritten.
▶ When using USB flash drives, always ensure that there is sufficient storage
capacity on the flash drive.

Buffer memory If the USB stick is unplugged (e.g. for data backup purposes), the logging data is
written to a buffer memory in the inverter.
As soon as the USB stick is plugged in again, the data is copied automatically
from the buffer memory to the stick.

The buffer memory can store a maximum of six logging points. Data is only
logged while the inverter is running (output greater than 0 W). The logging inter-
val is permanently set at 30 minutes. Data can be recorded on the buffer
memory for a three-hour time period as a result.

When the buffer memory is full, the oldest data in the memory will be overwrit-
ten by the next batch of data.

IMPORTANT! The buffer memory requires a permanent power supply.

If there is a power failure while the inverter is in operation, all the data in the buf-
fer memory will be lost. To avoid losing data during the night, the automatic night
switch-off facility must be deactivated (switch the "Night Mode" setup parameter
to ON - see the Datamanager 2.0 Operating Instructions, section "Setting and
displaying the menu items", "Viewing and adjusting parameters in the DATCOM
menu item").
On the Fronius Eco or Fronius Symo 15.0-3 208, the buffer memory also func-
tions with just a DC supply.

Suitable USB Due to the variety of USB flash drives available on the market, it cannot be guar-
flash drives anteed that every USB flash drive will be detected by the inverter.

Fronius recommends that only certified, industry-grade USB flash drives are
used (look out for the USB-IF logo).

The inverter supports USB flash drives with the following file systems:

95
 - FAT12
- FAT16
- FAT32

Fronius recommends that the USB flash drive employed should only be used for
recording logging data or updating the inverter software. The USB flash drives
should not contain any other data.

USB symbol on the inverter display, e.g. in display mode "NOW":

If the inverter detects a USB flash

drive, the USB symbol will appear in
the top right corner of the display.

When inserting a USB flash drive,

check whether the USB symbol is dis-
played (it may also flash).

NOW
AC Output Power

IMPORTANT! Please note for outdoor applications that conventional USB flash
drives are often only guaranteed to work within a restricted temperature range.
For outdoor applications ensure that the USB flash drive also functions, for ex-
ample, at low temperatures.

USB flash drive With the help of the USB flash drive,
for updating the end customers can also update the in-
inverter software verter software via the SETUP menu:
+ the update file is first saved to the
USB flash drive, from where it is then
transferred to the inverter.

2 2 3

4 4 5

Removing the Safety instruction concerning the removal of a USB flash drive:
USB flash drive

96
 IMPORTANT! To avoid any loss of
X Do not disconnect data, a USB flash drive may only be

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USB-Stick removed if the following conditions
are met:
while LED is flashing! - Only remove a USB flash drive
via the 'Safely remove USB /
HW' item on the SETUP menu
- The 'Data transmission' LED has
stopped flashing or comes on
steady.

97
The Basic menu

Access the Basic 1 Press the "Menu” button

menu
The menu level appears.

2 Press the unassigned "Menu / Esc" key

5 times

"Access Code" is displayed in the "CODE"

menu; the first digit starts flashing.
3 Enter the code 22742: Use the "Plus" and
"Minus" keys to select a value for the
first digit of the code
4 Press the "Enter" button

The second digit flashes.

Access Code 5 Repeat steps 3 and 4 for the second,
third, fourth and fifth digits of the access
code until...

the selected code starts flashing.

6 Press the "Enter" button

The Basic menu appears.

7 Use the "Plus" and "Minus" keys to select the desired entry
8 Edit the desired menu item by pressing the "Enter" button
9 Press the "Esc" key to exit the Basic menu

Menu items in The Basic menu is used to set the following parameters, which are important
the Basic menu for installing and operating the inverter:

MPP Tracker 1 / MPP Tracker 2

- MPP Tracker 2: ON / OFF
- DC operating mode: MPP AUTO / FIX / MPP USER
- MPP AUTO: normal operating status; the inverter automatically
searches for the ideal operating point
- FIX: for entering a fixed DC voltage at which the inverter will operate
- MPP USER: for entering a lower MP voltage above which the inverter
will search for its ideal operating point
- Dynamic Peak Manager: ON / OFF
- Fixed voltage: for entering the fixed voltage
- MPPT start-up input voltage: for entering the start-up input voltage

98
 USB log book
Activates or deactivates the function for saving all error messages to a USB

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flash drive AUTO / OFF / ON
- ON: All error messages are automatically saved to a connected USB flash
drive.
Input signal
- How it works: Ext Sig. / S0-Meter / OFF
operating mode Ext Sig.:
- Triggering method: Warning (warning shown on display) / Ext. Stop
(inverter switches off)
- Connection type: N/C (normally closed contact) / N/O (normally open
contact)

S0 meter operating mode – see chapter Dynamic power reduction by

means of inverter on page 23.
- Grid feed-in limit
Field for entering the maximum grid feed-in power in W. If this value
is exceeded, the inverter regulates down to the set value within the
time required by national standards and regulations.
- Pulses per kWh
Field for entering the pulses per kWh of the S0 meter.
SMS / relay
- Event delay:
for entering the time delay after which an SMS is sent or the relay is to
switch
900–86,400 seconds
- Event counter:
for entering the number of events that lead to signalling:
10 - 255
Isolation setting
- Isolation warning: ON / OFF
- Threshold warning: for entering a threshold that leads to a warning
- Threshold fault: for entering a threshold that leads to a fault (not avail-
able in all countries)
TOTAL Reset
Under the LOG menu item, this setting resets the max. and min. voltage values
and the max. power of feeding in to zero.Once the values have been reset, this
action cannot be undone.

To reset the values to zero, press the "Enter" key.

"CONFIRM" is displayed.Press "Enter" again.
The values are reset and the menu is displayed

Settings if the If the option: DC SPD (surge protection) has been fitted in the inverter, the fol-
"DC SPD" option lowing menu items will be set by default:
is installed
Signal input: Ext Sig.
Triggering method: Warning
Connection type: N/C

99
100
Appendix

101
102
Status diagnostics and troubleshooting

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Status code dis- The inverter performs a system self-diagnosis that automatically detects many
play faults that may occur and shows them on the display. This means you are
promptly made aware of malfunctions in the inverter or the photovoltaic system,
or of any installation or operating faults.

If the system self-diagnosis has detected a specific fault, the associated status
code will be shown on the display.

IMPORTANT! Status codes may sometimes appear briefly as a result of the in-
verter's control response. If the inverter then continues working with no sign of
any problem, this means that there was no fault.

Total failure of If the display fails to come on some time after sunrise:
the display - Check the AC voltage on the inverter connection sockets:
the AC voltage must be 220/230 V (+ 10 % / - 5 %) or 380/400 V (+ 10 % / -
5 %).

Class 1 status Class 1 status codes generally only arise momentarily and are caused by the pub-
codes lic grid.

Example: The grid frequency is too high and the inverter may not feed any energy
into the grid owing to a standard. There is nothing wrong with the device.
The initial response of the inverter is to disconnect itself from the grid. The grid
is subsequently checked during the stipulated monitoring period. If no further
problem has been detected by the end of this period, then the inverter will re-
sume feeding energy into the grid.

The GPIS SoftStart function is activated according to the country setup:

After cutting out due to an AC error, the output power of the inverter is continu-
ously increased in line with the national guidelines.

Code Description Behaviour Remedy

102 AC voltage too high
103 AC voltage too low
105 AC frequency too high Following careful testing and
Check grid connections;
when the grid conditions are
106 AC frequency too low if this status code keeps re-
within the permissible range
curring, contact your system
107 No AC grid again, the inverter will resume
fitter
feeding energy into the grid.
108 Stand-alone operation de-
tected
112 RCMU error

103
Class 2 status
codes

Code Description Behaviour Remedy

CAUTION!

Danger from damaged

components of the
photovoltaic system

This can result in severe

ArcContinuousFault personal injury/damage to
An arc was detected on property.
The status code 240 is dis-
the PV system and the Before the status
240 played for roughly 4
maximum number of auto- "240 - ArcContinu-
seconds.
matic switch-ons within 24 ousFault" is con-

▶
hours was reached. firmed, the entire
photovoltaic system
in question must be
checked for possible
damage.
Have damaged com-
▶ ponents repaired by
qualified personnel.

Before resetting the in-

The status code 241 is dis- verter after a detected arc,
ArcContinuousFault played directly after 240, check the entire photovol-
241 An arc was detected on the inverter disconnects taic system in question for
the PV system. from the grid for safety any damage!
reasons. Reset the status code by
pressing the Enter key.
Reset the status code by
ArcContinuousFault The status code 242 is dis- pressing the Enter key.
242 An arc was detected on played after resetting the The inverter resumes feed-
the PV system. status code 241. ing energy into the grid.
**)
244 ArcDetected The status code 244 is dis- No action required. Feed-
An arc was detected on played. in mode is started again
the PV system. automatically after 10
minutes.
Arc Detector self-test The inverter disconnects Perform AC reset;
245
failed itself from the grid. the test is repeated. *)

*) If the status code is displayed all the time: Notify a Fronius-trained service en-
gineer

**) Fault is rectified automatically. If this status code is displayed all the time,
contact your system fitter

Class 3 status Class 3 includes status codes that may occur while feeding energy into the grid,
codes but generally do not cause the process to be interrupted for any length of time.

104
 The inverter disconnects automatically from the grid, the grid is then monitored
as specified and the inverter attempts to resume feeding energy into the grid.

EN
Code Description Behaviour Remedy
301 Overcurrent (AC) Short-term interruption
while feeding energy into
the grid. *)
302 Overcurrent (DC) The inverter resumes its
start-up routine.
303 DC module overtemperature Short-term interruption
while feeding energy into Purge cooling air
304 AC module overtemperature
the grid. openings and heat
The inverter resumes with sink; **)
its startup routine.
305 No power being fed in, despite Short-term interruption
closed relay while feeding energy into
the grid. **)
The inverter resumes with
its startup routine.
PV output too low for feeding Short-term interruption
306
energy into the grid while feeding energy into wait for sufficient
DC low the grid level of insolation;
307 DC input voltage too low for The inverter resumes its **)
feeding energy into the grid startup routine.

IMPORTANT! Due to the low level of insolation early in the morning and in the evening, the status
codes 306 (Power low) and 307 (DC low) are displayed routinely at these times of day. These status
codes do not indicate any kind of fault.
Intermediate circuit voltage too
308
high
Short-term interruption
DC input voltage MPPT 1 too while feeding energy into
309
high the grid **)
311 Polarity of DC strings reversed The inverter resumes its
startup routine.
313 DC input voltage MPPT2 too
high
314 Current sensor calibration
timeout
315 AC current sensor error Short-term interruption
316 InterruptCheck fail while feeding energy into
the grid. *)
325 Overtemperature in the connec- The inverter resumes with
tion area its startup routine.
326 Fan 1 error
327 Fan 2 error

*) If the status code is displayed all the time: notify a Fronius-trained service en-
gineer

**) Fault is rectified automatically. If this status code keeps recurring, contact
your system engineer

105
Status codes – Some of the class 4 status codes necessitate intervention by a Fronius-trained
Class 4 service technician.

Code Description Behaviour Remedy

401 Unable to communicate with the
power stage set
The inverter will auto-
406 AC module temperature sensor matically attempt to
faulty (L1) connect again and, if
*)
407 AC module temperature sensor possible, will resume
faulty (L2) feeding energy into the
grid
408 DC component measured in the
grid too high
412 Fixed voltage mode has been selec-
ted instead of MPP voltage mode,
- **)
and the fixed voltage has been set
to too low or too high a value.
415 Safety cut-out via option card or The inverter is not feed- *)
RECERBO has triggered ing any energy into the
grid.
416 No communication possible The inverter will auto-
between power stage set and con- matically attempt to
trol system. connect again and, if
*)
possible, will resume
feeding energy into the
grid
417 Hardware ID problem
419 Unique ID conflict
420 No communication possible with The inverter will auto-
the Fronius Datamanager matically attempt to
connect again and, if Update inverter firm-
421 HID range error possible, will resume ware; *)
425 Unable to communicate with the feeding energy into the
power stage set grid

426 - Possible hardware fault

428
431 Software problem Perform AC reset
(switch automatic
The inverter is not feed-
circuit breaker off
ing any energy into the
and on again); up-
grid.
date inverter firm-
ware; *)
436 Functional incompatibility (one or The inverter will auto-
more PC boards in the inverter are matically attempt to
not compatible with each other, e.g. connect again and, if Update inverter firm-
after a PC board has been re- possible, will resume ware; *)
placed) feeding energy into the
437 Power stage set problem grid

106
Code Description Behaviour Remedy

EN
438 Functional incompatibility (one or The inverter will auto-
more PC boards in the inverter are matically attempt to
not compatible with each other, e.g. connect again and, if Update inverter firm-
after a PC board has been re- possible, will resume ware; *)
placed) feeding energy into the
grid
443 Intermediate circuit voltage too low The inverter is not feed-
or asymmetric ing any energy into the *)
grid.
445 - Compatibility error (e.g. due to
The inverter is not feed-
replacement of a PC board) Update inverter firm-
ing any energy into the
- Invalid power stage set config- ware; *)
grid.
uration
447 Insulation fault
The inverter is not feed-
448 Neutral conductor not connected ing any energy into the *)
grid.
450 Guard cannot be found
451 Memory error detected
452 Communication error between the
processors The inverter will auto-
matically attempt to
453 Grid voltage and power stage set
connect again and, if
are incompatible *)
possible, will resume
454 Grid frequency and power stage set feeding energy into the
are incompatible grid
456 Anti-islanding function is no longer
being implemented correctly
457 Grid voltage relay fault The inverter is not feed- Check AC cable *)
ing any energy into the
grid.
458 Error when recording measuring
signal
459 Error when recording the measur-
ing signal for the insulation test
460 Reference voltage source for the di-
gital signal processor (DSP) is work- The inverter is not feed-
ing out of tolerance ing any energy into the *)
grid.
461 DSP data memory error
462 Error during DC feed monitoring
routine
463 Reversed AC polarity, AC connect-
or inserted incorrectly
474 RCMU sensor faulty
The inverter is not feed-
475 Insulation fault (connection
ing any energy into the **)
between solar module and ground)
grid.
476 Driver supply voltage too low

107
 Code Description Behaviour Remedy
479 Intermediate circuit voltage relay is The inverter will auto-
switched off matically attempt to
connect again and, if
*)
possible, will resume
feeding energy into the
grid
480, Functional incompatibility (one or
481 more PC boards in the inverter are The inverter is not feed-
Update inverter firm-
not compatible with each other, e.g. ing any energy into the
ware; *)
after a PC board has been re- grid.
placed)
482 Setup interrupted after initial start- Restart Setup after
up The inverter is not feed- an AC reset (switch
ing any energy into the automatic circuit
grid. breaker off and on
again)
483 Voltage UDC fixed on MPP2 string The inverter is not feed- Check MPP settings;
out of limits ing any energy into the *)
grid.
485 CAN transmit buffer is full Perform AC reset
The inverter is not feed-
(switch automatic
ing any energy into the
circuit breaker off
grid.
and on again; *)
489 Permanent overvoltage on interme- The inverter is not feed-
diate circuit capacitor (five 479 ing any energy into the *)
status codes in a row) grid.

*) If the status code is displayed all the time: notify a Fronius-trained service
technician

**) If this status code keeps recurring, contact your system engineer

Status codes – Class 5 status codes do not generally interfere with feeding energy into the grid,
Class 5 but can cause restrictions. These status codes are displayed until they are ac-
knowledged by pressing a key (however, the inverter continues to operate nor-
mally in the background).

Code Description Behaviour Remedy

502 Insulation error on the sol- Warning message is **)
ar modules shown on the display
509 Acknowledge status code;
check whether all the conditions
No energy fed into the grid Warning message is for the problem-free feeding of
in the past 24 hours shown on the display energy into the grid have been
met (e.g. are the solar modules
covered with snow?); **)
515 Unable to communicate Warning message on *)
with filter the display
516 No communication pos- Storage unit warning *)
sible with the storage unit message

108
Code Description Behaviour Remedy

EN
When power derat- If necessary, purge cooling air
Power derating caused by ing occurs, a warning openings and heat sink;
517
too high a temperature message is shown on fault is rectified automatically;
the display. **)
518 Internal DSP malfunction Warning message on *)
the display
519 No communication pos- Storage unit warning *)
sible with the storage unit message
520 Acknowledge status code;
check whether all the conditions
No energy fed into the grid
Warning message is for the problem-free feeding of
by MPPT1 in the past 24
shown on the display energy into the grid have been
hours
met (e.g. are the solar modules
covered with snow?); *)
522 DC low String 1 Warning message on *)
the display
523 DC low String 2
558, Functional incompatibility
559 (one or more PC boards in
the inverter are not com- Warning message on
Update inverter firmware; *)
patible with each other, the display
e.g. after a PC board has
been replaced)
As soon as the grid frequency is
Displayed when grid back within the permissible
Power derating caused by frequency becomes range and the inverter has re-
560
overfrequency excessively high. The turned to normal operation, the
power is reduced. fault is rectified automatically;
**)
564 Functional incompatibility
(one or more PC boards in
the inverter are not com- Warning message on
Update inverter firmware; *)
patible with each other, the display
e.g. after a PC board has
been replaced)
566 The status code is
Arc detector switched off No error
displayed every day
(e.g. during external arc Confirm status code by pressing
until the arc detect-
monitoring) 'Enter'
or is reactivated.
The status code is
displayed in the case
of an incorrect input
signal on the multi-
function current in- Acknowledge status code;
Incorrect input signal on
terface and with the check the devices connected to
568 the multifunction current
following setting: the multifunction current inter-
interface
Basic menu / Input face; **)
signal / Mode of op-
eration = Ext. Signal,
triggering method =
Warning
572 Power limited by the Power is being lim-
power stage set ited by the power *)
stage set

109
 Code Description Behaviour Remedy
573 Undertemperature warn- Warning message on
*)
ing the display
581 "Special Purpose Utility- The inverter is no
Interactive" (SPUI) setup longer compliant
activated with the IEEE1547
and IEEE1574.1
standards because
the standalone func-
No error
tion has been deac-
Confirm status code by pressing
tivated, a frequency-
'Enter'
dependent power re-
duction has been ac-
tivated and the fre-
quency and voltage
limits are being
changed

*) If the status code is displayed all the time: Notify a Fronius-trained service
technician.

**) If this status code keeps recurring, contact your system engineer.

Class 6 status Some of the class 6 status codes necessitate intervention by a Fronius-trained
codes service engineer.

Code Description Behaviour Remedy

601 CAN bus is full The inverter is not feed-
Update inverter firm-
ing any energy into the
ware; *)
grid.
603 AC module temperature sensor The inverter will auto-
faulty (L3) matically attempt to
connect again and, if
DC module temperature sensor *)
possible, will resume
604 faulty
feeding energy into the
grid
607 RCMU error Reset status code by
pressing 'Enter'. The
inverter resumes the
feeding of energy in-
The inverter is not feed-
to the grid; if the
ing any energy into the
status code keeps
grid.
appearing, check the
complete photovol-
taic system for dam-
age; **)
608 Functional incompatibility (one or
more PC boards in the inverter are The inverter is not feed-
Update inverter firm-
not compatible with each other, e.g. ing any energy into the
ware; *)
after a PC board has been re- grid.
placed)

*) If the status code is displayed all the time: notify a Fronius-trained service en-
gineer

110
 **) Fault is rectified automatically. If this status code keeps recurring, contact
your system engineer

EN
Status codes – Class 7 status codes relate to the control system, the configuration and inverter
Class 7 data recording, and may directly or indirectly affect the process of feeding en-
ergy into the grid.

Code Description Behaviour Remedy

Provides information
701 - Warning message on the
about the internal pro- *)
704 display
cessor status
Conflict when setting the
Correct inverter number in
705 inverter number (e.g. num- -
Setup menu
ber already assigned)
Provides information
706 - Warning message on the
about the internal pro- *)
716 display
cessor status
EEPROM has been re-ini- Warning message on the
721 Acknowledge status code; *)
tialised display
722 - Provides information
Warning message on the
730 about the internal pro- *)
display
cessor status
Initialisation error - USB
731 flash drive is not suppor- Check or replace USB flash
ted Warning message on the drive
display Check file system on USB
Initialisation error - Over- flash drive; *)
732
current on USB flash drive
No USB flash drive con- Warning message on the Connect or check USB flash
733
nected display drive; *)
Check update file (e.g. for
Update file not recognised Warning message on the
734 correct file name)
or not present display
*)
Check update file
Update file does not Warning message on the and if necessary download an
735 match the device, update display, update process update file to match the
file too old is interrupted device (e.g. at
http://www.fronius.com); *)
Check USB flash drive and
the data contained on it or
Write or read error oc- Warning message on the replace USB flash drive
736
curred display Never unplug a USB flash
drive if the 'data transfer'
LED is still flashing or lit; *)
File could not be opened Remove and then reinsert
Warning message on the
737 USB flash drive; check or re-
display
place USB flash drive
Create some storage space,
Log file cannot be saved
Warning message on the remove write protection, if
738 (e.g. USB flash drive is
display necessary check or replace
write-protected or full)
USB flash drive; *)

111
Code Description Behaviour Remedy
740 Initialisation error - error Check USB flash drive; re-
Warning message on the
in file system on USB flash format on PC for FAT12,
display
drive FAT16 or FAT32
741 Error during recording of Remove and then reinsert
Warning message on the
logging data USB flash drive; check or re-
display
place USB flash drive
Error occurred during up- Warning message on the Repeat update process,
743
date process display check USB flash drive; *)
Warning message on the Download update file again;
745 Update file corrupt display, update process check or replace USB flash
is interrupted drive; *)
Warning message on the
Error occurred during up- Wait for two minutes, then
746 display, update process
date process start the update again; *)
is interrupted
751 Time lost
Warning message on the Reset time and date on the
Real Time Clock module display inverter; *)
752
communication error
Internal error: Real Time Time may be inaccurate
Reset time and date on the
753 Clock module is in emer- or lost (feeding energy
inverter
gency mode into the grid normal)
Provides information
754 - Warning message on the
about the internal pro- *)
755 display
cessor status
757 Hardware error in the Real Error message on the *)
Time Clock module display; the inverter is
not feeding any energy
into the grid
758 Internal error: Real Time Time may be inaccurate Reset time and date on the
Clock module is in emer- or lost (feeding energy inverter
gency mode into the grid normal)
760 Internal hardware error Error message on the *)
display
761 - Provides information
Warning message on the
765 about the internal pro-
display
cessor status
*)
Emergency power limita-
Error message on the
766 tion has been activated
display
(max. 750 W)
Provides information
767 about the internal pro-
cessor status
Different power limitation Warning message on the
768 *)
in the hardware modules display
772 Storage unit not available
Software update group 0
773
(invalid country setup)
PMC power stage set not
775 Warning message on the Press 'Enter' key to acknow-
available
display ledge error; *)
776 Invalid device type

112
 Code Description Behaviour Remedy

EN
781 - Provides information
Warning message on the
794 about the internal pro- *)
display
cessor status

*) If the status code is displayed all the time: Notify a Fronius-trained service
technician

Class 10 - 12 1000 - 1299- Provide information on the status of the internal processor pro-
status codes gram
Description Is of no concern when the inverter is working properly
and only appears in the "Status PS" setup parameter. In
the event of an actual error, this status code assists
Fronius Technical Support during the error analysis.

Customer ser- IMPORTANT! Contact your Fronius dealer or a Fronius-trained service techni-
vice cian if
- an error appears frequently or all the time
- an error appears that is not listed in the tables

Operation in When operating the inverter in extremely dusty environments:

dusty environ- when necessary, clean the cooling elements and fan on the back of the inverter
ments as well as the air intakes at the mounting bracket using clean compressed air.

113
Technical data

Fronius Symo Fronius Symo Advanced 10.0-3-M

Advanced
10.0-3-M Input data
MPP voltage range 270–800 V DC
Max. input voltage
1000 V DC
(at 1000 W/m²/ -10 °C in an open circuit)
Min. input voltage 200 V DC
Max. input current (MPP1 / MPP2) 27.0 / 16.5 A (14 A for
voltages < 420 V)
(MPP1 + MPP2) 43.5 A
Max. input current per string with activated AFCI 12 A
(AFPE)
Max. short circuit current of the solar modules
55.7 / 34 A
(ISC PV) (MPP1 / MPP2)

Max. inverter backfeed current to the array 3) 40.5 / 24.8 A (RMS)4)

Max. capacity of the module array against earth 10,000 nF
Insulation resistance test limit value between 100 kΩ
module array and earth (on delivery) 7)
Adjustable range of insulation resistance test 100–10,000 kΩ
between module array and earth 6)
Limit value and tripping time of the sudden resid- 30 / 300 mA / ms
ual current monitoring (on delivery) 60 / 150 mA / ms
90 / 40 mA / ms
Limit value and tripping time of the continuous re- 300 / 300 mA / ms
sidual current monitoring (on delivery)
Adjustable range of continuous residual current - mA
monitoring 6)
Cyclic repetition of the insulation resistance test 24 h
(on delivery)
Adjustable range for the cyclic repetition of the -
insulation resistance test
Output data
Nominal output power (Pnom) 10,000 W
Max. output power 10,000 W
Rated apparent power 10,000 VA
3~ NPE 400 / 230 V or 3~
Nominal mains voltage
NPE 380 / 220
Min. grid voltage 150 V / 260 V
Max. grid voltage 280 V / 485 V
Nominal output current at 220 / 230 V 15.2 / 14.4 A
Max. output current 20 A

114
Fronius Symo Advanced 10.0-3-M

EN
Nominal frequency 50 / 60 Hz 1)
Initial short circuit alternating current / phase IK 20 A
Total harmonic distortion < 1.75%
Current (inrush) 5) 27.2 A peak /
5.18 A rms over 5.4 ms4)
Power factor (cos phi) 0–1 ind./cap.2)
Maximum output fault current / duration 64 A / 2.34 ms
General data
Maximum efficiency 97.8%
European efficiency UDCmin / UDCnom / UDCmax 95.4 / 97.3 / 96.6%
Self-consumption at night 0.7 W & 117 VA
Controlled forced-air
Cooling
ventilation
Protection class IP 66
Dimensions h x w x d 725 x 510 x 225 mm
Weight 34.8 kg
Permitted ambient temperature -25 °C - +60 °C
Permissible humidity 0-100%
EMC emission class B
DC / AC overvoltage category 2/3
Pollution degree 2
Noise emission 65 dB(A) (ref. 1pW)
Inverter topology Non-insulated trans-
formerless
Protection devices
DC isolation measurement Integrated
Operating point shift,
DC overload performance
power limiter
DC disconnector Integrated
RCMU Integrated
Active anti-islanding method Frequency conversion
method
AFCI - Arc Fault Circuit Interrupter (Arc Guard) Integrated
AFPE (AFCI) classification (according to F-I-AFPE-1-6-1
IEC63027) Full coverage
Integrated
AFPE
1 monitored string per in-
put port
6 input ports per channel
(AFPE for MPP1 & MPP2:
6)
1 monitored channel

115
Fronius Symo Fronius Symo Advanced 12.5-3-M
Advanced
12.5-3-M Input data
MPP voltage range 320–800 V DC
Max. input voltage
1000 V DC
(at 1000 W/m²/ -10 °C in an open circuit)
Min. input voltage 200 V DC
Max. input current (MPP1 / MPP2) 27.0 / 16.5 A (14 A for
voltages < 420 V)
(MPP1 + MPP2) 43.5 A
Max. input current per string with activated AFCI 12 A
(AFPE)
Max. short circuit current of the solar modules
55.7 / 34 A
(ISC PV) (MPP1 / MPP2)

Max. inverter backfeed current to the array 3) 40.5 / 24.8 A (RMS)4)

Insulation resistance test limit value between 100 kΩ
module array and earth (on delivery) 7)
Adjustable range of insulation resistance test 100–10,000 kΩ
between module array and earth 6)
Limit value and tripping time of the sudden resid- 30 / 300 mA / ms
ual current monitoring (on delivery) 60 / 150 mA / ms
90 / 40 mA / ms
Limit value and tripping time of the continuous re- 300 / 300 mA / ms
sidual current monitoring (on delivery)
Adjustable range of continuous residual current - mA
monitoring 6)
Cyclic repetition of the insulation resistance test 24 h
(on delivery)
Adjustable range for the cyclic repetition of the -
insulation resistance test
Output data
Nominal output power (Pnom) 12,500 W
Max. output power 12,500 W
Rated apparent power 12,500 VA
3~ NPE 400 / 230 V or 3~
Nominal mains voltage
NPE 380 / 220
Min. grid voltage 150 V / 260 V
Max. grid voltage 280 V / 485 V
Nominal output current at 220 / 230 V 18.9 / 18.1 A
Max. output current 20 A
Nominal frequency 50 / 60 Hz 1)
Initial short circuit alternating current / phase IK 20 A
Total harmonic distortion < 2%

116
Fronius Symo Advanced 12.5-3-M

EN
Current (inrush) 5) 27.2 A peak /
5.18 A rms over 5.4 ms4)
Power factor (cos phi) 0–1 ind./cap.2)
Maximum output fault current / duration 64 A / 2.34 ms
General data
Maximum efficiency 97.8%
European efficiency UDCmin / UDCnom / UDCmax 95.7 / 97.5 / 96.9%
Self-consumption at night 0.7 W & 117 VA
Controlled forced-air
Cooling
ventilation
Protection class IP 66
Dimensions h x w x d 725 x 510 x 225 mm
Weight 34.8 kg
Permitted ambient temperature -25 °C - +60 °C
Permissible humidity 0-100%
EMC emission class B
DC / AC overvoltage category 2/3
Pollution degree 2
Noise emission 65 dB(A) (ref. 1pW)
Inverter topology Non-insulated trans-
formerless
Protection devices
DC isolation measurement Integrated
Operating point shift,
DC overload performance
power limiter
DC disconnector Integrated
RCMU Integrated
Active anti-islanding method Frequency conversion
method
AFCI - Arc Fault Circuit Interrupter (Arc Guard) Integrated
AFPE (AFCI) classification (according to F-I-AFPE-1-6-1
IEC63027) Full coverage
Integrated
AFPE
1 monitored string per in-
put port
6 input ports per channel
(AFPE for MPP1 & MPP2:
6)
1 monitored channel

117
Fronius Symo Fronius Symo Advanced 15.0-3-M
Advanced
15.0-3-M Input data
MPP voltage range 320–800 V DC
Max. input voltage 1000 V DC
(at 1000 W/m²/ -10 °C in an open circuit)
Min. input voltage 200 V DC
Max. input current (MPP1 / MPP2) 33.0 / 27.0 A
(MPP1 + MPP2) 51.0 A
Max. input current per string with activated AFCI 12 A
(AFPE)
Max. short circuit current of the solar modules 68 / 55.7 A
(ISC PV) (MPP1 / MPP2)

Max. inverter backfeed current to the array 3) 49.5 / 40.5 A

Insulation resistance test limit value between 100 kΩ
module array and earth (on delivery) 7)
Adjustable range of insulation resistance test 100–10,000 kΩ
between module array and earth 6)
Limit value and tripping time of the sudden resid- 30 / 300 mA / ms
ual current monitoring (on delivery) 60 / 150 mA / ms
90 / 40 mA / ms
Limit value and tripping time of the continuous re- 300 / 300 mA / ms
sidual current monitoring (on delivery)
Adjustable range of continuous residual current - mA
monitoring 6)
Cyclic repetition of the insulation resistance test 24 h
(on delivery)
Adjustable range for the cyclic repetition of the -
insulation resistance test
Output data
Nominal output power (Pnom) 15,000 W
Max. output power 15,000 W
Rated apparent power / SRATED 15,000 VA
Nominal mains voltage 3~ NPE 400 / 230 V or 3~
NPE 380 / 220
Min. grid voltage 150 V / 260 V
Max. grid voltage 280 V / 485 V
Nominal output current at 220 / 230 V 22.7 / 21.7 A
Max. output current 32 A
Nominal frequency 50 / 60 Hz 1)
Initial short circuit alternating current / phase IK 32 A
Total harmonic distortion < 1.5%

118
Fronius Symo Advanced 15.0-3-M

EN
Current (inrush) 5) 27.2 A peak /
5.18 A rms over 5.4 ms4)
Power factor (cos phi) 0–1 ind./cap.2)
Maximum output fault current / duration 64 A / 2.34 ms
General data
Maximum efficiency 98%
European efficiency UDCmin / UDCnom / 96.2 / 97.6 / 97.1%
UDCmax
Self-consumption at night 0.7 W & 117 VA
Cooling Controlled forced-air
ventilation
Protection class IP 66
Dimensions h x w x d 725 x 510 x 225 mm
Weight 43.4 kg / 43.2 kg
Permitted ambient temperature -25 °C - +60 °C
Permissible humidity 0-100%
EMC emission class B
DC / AC overvoltage category 2/3
Pollution degree 2
Noise emission 65 dB(A) (ref. 1pW)
Inverter topology Non-insulated trans-
formerless
Protection devices
DC isolation measurement Integrated
DC overload performance Operating point shift,
power limiter
DC disconnector Integrated
RCMU Integrated
Active anti-islanding method Frequency conversion
method
AFCI - Arc Fault Circuit Interrupter (Arc Guard) Integrated
AFPE (AFCI) classification (according to F-I-AFPE-1-6-1
IEC63027) Full coverage
Integrated
AFPE
1 monitored string per in-
put port
6 input ports per channel
(AFPE for MPP1 & MPP2:
6)
1 monitored channel

119
Fronius Symo Fronius Symo Advanced 17.5-3-M
Advanced
17.5-3-M Input data
MPP voltage range 370–800 V DC
Max. input voltage 1000 V DC
(at 1000 W/m²/ -10 °C in an open circuit)
Min. input voltage 200 V DC
Max. input current (MPP1 / MPP2) 33.0 / 27.0 A
(MPP1 + MPP2) 51.0 A
Max. input current per string with activated AFCI 12 A
(AFPE)
Max. short circuit current of the solar modules 68 / 55.7 A
(ISC PV) (MPP1 / MPP2)

Max. inverter backfeed current to the array 3) 49.5 / 40.5 A

Insulation resistance test limit value between 100 kΩ
module array and earth (on delivery) 7)
Adjustable range of insulation resistance test 100–10,000 kΩ
between module array and earth 6)
Limit value and tripping time of the sudden resid- 30 / 300 mA / ms
ual current monitoring (on delivery) 60 / 150 mA / ms
90 / 40 mA / ms
Limit value and tripping time of the continuous re- 300 / 300 mA / ms
sidual current monitoring (on delivery)
Adjustable range of continuous residual current - mA
monitoring 6)
Cyclic repetition of the insulation resistance test 24 h
(on delivery)
Adjustable range for the cyclic repetition of the -
insulation resistance test
Output data
Nominal output power (Pnom) 17,500 W
Max. output power 17,500 W
Rated apparent power / SRATED 17,500 VA
Nominal mains voltage 3~ NPE 400 / 230 V or 3~
NPE 380 / 220
Min. grid voltage 150 V / 260 V
Max. grid voltage 280 V / 485 V
Nominal output current at 220 / 230 V 26.5 / 25.4 A
Max. output current 32 A
Nominal frequency 50 / 60 Hz 1)
Initial short circuit alternating current / phase IK 32 A
Total harmonic distortion < 1.5%

120
Fronius Symo Advanced 17.5-3-M

EN
Current (inrush) 5) 27.2 A peak /
5.18 A rms over 5.4 ms4)
Power factor (cos phi) 0–1 ind./cap.2)
Maximum output fault current / duration 64 A / 2.34 ms
General data
Maximum efficiency 98%
European efficiency UDCmin / UDCnom / 96.4 / 97.7 / 97.2%
UDCmax
Self-consumption at night 0.7 W & 117 VA
Cooling Controlled forced-air
ventilation
Protection class IP 66
Dimensions h x w x d 725 x 510 x 225 mm
Weight 43.4 kg / 43.2 kg
Permitted ambient temperature -25 °C - +60 °C
Permissible humidity 0-100%
EMC emission class B
DC / AC overvoltage category 2/3
Pollution degree 2
Noise emission 65 dB(A) (ref. 1pW)
Inverter topology Non-insulated trans-
formerless
Protection devices
DC isolation measurement Integrated
DC overload performance Operating point shift,
power limiter
DC disconnector Integrated
RCMU Integrated
Active anti-islanding method Frequency conversion
method
AFCI - Arc Fault Circuit Interrupter (Arc Guard) Integrated
AFPE (AFCI) classification (according to F-I-AFPE-1-6-1
IEC63027) Full coverage
Integrated
AFPE
1 monitored string per in-
put port
6 input ports per channel
(AFPE for MPP1 & MPP2:
6)
1 monitored channel

121
Fronius Symo Fronius Symo Advanced 20.0-3-M
Advanced
20.0-3-M Input data
MPP voltage range 420–800 V DC
Max. input voltage 1000 V DC
(at 1000 W/m²/ -10 °C in an open circuit)
Min. input voltage 200 V DC
Max. input current (MPP1 / MPP2) 33.0 / 27.0 A
(MPP1 + MPP2) 51.0 A
Max. input current per string with activated AFCI 12 A
(AFPE)
Max. short circuit current of the solar modules 68 / 55.7 A
(ISC PV) (MPP1 / MPP2)

Max. inverter backfeed current to the array 3) 49.5 / 40.5 A

Insulation resistance test limit value between 100 kΩ
module array and earth (on delivery) 7)
Adjustable range of insulation resistance test 100–10,000 kΩ
between module array and earth 6)
Limit value and tripping time of the sudden resid- 30 / 300 mA / ms
ual current monitoring (on delivery) 60 / 150 mA / ms
90 / 40 mA / ms
Limit value and tripping time of the continuous re- 300 / 300 mA / ms
sidual current monitoring (on delivery)
Adjustable range of continuous residual current - mA
monitoring 6)
Cyclic repetition of the insulation resistance test 24 h
(on delivery)
Adjustable range for the cyclic repetition of the -
insulation resistance test
Output data
Nominal output power (Pnom) 20,000 W
Max. output power 20,000 W
Rated apparent power / SRATED 20,000 VA
Nominal mains voltage 3~ NPE 400 / 230 V or 3~
NPE 380 / 220
Min. grid voltage 150 V / 260 V
Max. grid voltage 280 V / 485 V
Nominal output current at 220 / 230 V 30.3 / 29 A
Max. output current 32 A
Nominal frequency 50 / 60 Hz 1)
Initial short circuit alternating current / phase IK 32 A
Total harmonic distortion < 1.25%

122
Fronius Symo Advanced 20.0-3-M

EN
Current (inrush) 5) 27.2 A peak /
5.18 A rms over 5.4 ms4)
Power factor (cos phi) 0–1 ind./cap.2)
Maximum output fault current / duration 64 A / 2.34 ms
General data
Maximum efficiency 98%
European efficiency UDCmin / UDCnom / 96.5 / 97.8 / 97.3%
UDCmax
Self-consumption at night 0.7 W & 117 VA
Cooling Controlled forced-air
ventilation
Protection class IP 66
Dimensions h x w x d 725 x 510 x 225 mm
Weight 43.4 kg / 43.2 kg
Permitted ambient temperature -25 °C - +60 °C
Permissible humidity 0-100%
EMC emission class B
DC / AC overvoltage category 2/3
Pollution degree 2
Noise emission 65 dB(A) (ref. 1pW)
Inverter topology Non-insulated trans-
formerless
Protection devices
DC isolation measurement Integrated
DC overload performance Operating point shift,
power limiter
DC disconnector Integrated
RCMU Integrated
Active anti-islanding method Frequency conversion
method
AFCI - Arc Fault Circuit Interrupter (Arc Guard) Integrated
AFPE (AFCI) classification (according to F-I-AFPE-1-6-1
IEC63027) Full coverage
Integrated
AFPE
1 monitored string per in-
put port
6 input ports per channel
(AFPE for MPP1 & MPP2:
6)
1 monitored channel

123
Explanation of 1) The values stated are defaults; the inverter is configured specifically to
footnotes suit the requirements of the relevant country.
2) Depending on the country setup or device-specific settings
(ind. = inductive; cap. = capacitive).
3) Maximum current from a defective PV module to all other PV modules.
From the inverter itself to the PV side of the inverter, it is 0 A.
4) Guaranteed by the electrical configuration of the inverter
5) Current peak when switching on the inverter
6) Specified values are standard values; depending on the requirement and
PV power, these values must be adjusted accordingly.
7) Specified value is a max. value; exceeding the max. value may negatively
affect the function.
8) ISC PV = ISC max ≥ ISC (STC) x 1.25 according to e.g.: IEC 60364-7-712,
NEC 2020, AS/NZS 5033:2021

WLAN WLAN
Frequency range 2412–2462 MHz
Channels / power used Channel: 1–11 b,g,n HT20
Channel: 3–9 HT40
<18 dBm
Modulation 802.11b: DSSS (1 Mbps DBPSK,
2 Mbps DQPSK, 5.5/11 Mbps CCK)
802.11g: OFDM (6/9 Mbps BPSK,
12/18 Mbps QPSK, 24/36 Mbps 16-
QAM, 48/54 Mbps 64-QAM)
802.11n: OFDM (6.5 BPSK, QPSK,
16-QAM, 64-QAM)

Integrated DC Settings
disconnector
Fronius Symo Product name Benedict LS32 E 7857
Advanced Rated insulation 1000 VDC
10.0-12.5 voltage
Rated impulse with- 8 kV
stand voltage
Suitability for insula- Yes, DC only
tion
Utilisation category As per IEC/EN 60947-3 utilisation category DC-PV2
and / or PV utilisa-
tion category
Rated short-time Rated short-time withstand current (Icw): 1000 A for 2
withstand current poles; 1700 A for 2+2 poles
(Icw)
Rated short-circuit Rated short-time withstand current (Icm): 1000 A for 2
making capacity poles; 1700 A for 2+2 poles
(Icm)

124
 Settings

EN
Rated Rated I(make) / Rated I(make) /
operating operating I(break) operating I(break)
voltage current [A] current [A]
(Ue) (Ie) (Ie)
[V d.c.] [A] [A]

2P 2P 2 + 2P 2 + 2P
Rated breaking capa-
≤ 500 32 128 50 200
city
600 27 108 35 140
700 22 88 22 88
800 17 68 17 68
900 12 48 12 48
1000 6 24 6 24

Integrated DC Settings
disconnector
Fronius Symo Product name Benedict LS32 E 7858
Advanced 15.0 - Rated insulation 1000 VDC
20.0 voltage
Rated impulse with- 8 kV
stand voltage
Suitability for insula- Yes, DC only
tion
Utilisation category As per IEC/EN 60947-3 utilisation category DC-PV2
and / or PV utilisa-
tion category
Rated short-time Rated short-time withstand current (Icw): 1400 A for 2
withstand current poles; 2400 A for 2+2 poles
(Icw)
Rated short-circuit Rated short-time withstand current (Icm): 1400 A for 2
making capacity poles; 2400 A for 2+2 poles
(Icm)
Rated Rated I(make) / Rated I(make) /
operating operating I(break) operating I(break)
voltage current [A] current [A]
(Ue) (Ie) (Ie)
[V d.c.] [A] [A]

2P 2P 2 + 2P 2 + 2P
Rated breaking capa-
≤ 500 55 220 85 340
city
600 55 220 75 300
700 55 220 60 240
800 49 196 49 196
900 35 140 35 140
1000 20 80 25 100

125
Applicable CE mark
standards and The devices comply with all the requisite and relevant standards and guidelines
guidelines that form part of the relevant EU Directive, and are therefore permitted to dis-
play the CE mark.

Circuit to prevent stand alone operation

The inverter has an approved circuit to prevent stand alone operation.

Grid failure
The standard measurement and safety procedures integrated into the inverter
ensure that in the event of a grid failure, the feed-in of energy is immediately in-
terrupted (e.g. switch-off by the energy supplier or damage to lines).

126
Warranty terms and conditions, and disposal

EN
Fronius manu- Detailed, country-specific warranty terms are available on the internet:
facturer's war- www.fronius.com/solar/warranty
ranty
To obtain the full warranty period for your newly installed Fronius inverter or
storage system, please register at: www.solarweb.com.

Disposal The manufacturer, Fronius International GmbH, will take back the old device and
arrange for it to be recycled in an appropriate manner. Observe the national reg-
ulations for the disposal of electronic equipment.

127
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