APPLICATION AREAS FOR
INTEGRATED INTERFACES
DATA COMMUNICATION APPLICATIONS
/ FRONIUS GALVO
The future-proof inverter for small
self-consumption systems.
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/ FRONIUS SYMO
Maximum flexibility for the applications
of tomorrow.
Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
/ The Fronius Galvo and Fronius Symo inverters have numerous permanently integrated interfaces that
can be used for a variety of practical applications.
/ The following slides provide an overview of the various application possibilities
/ How is the inverter connected to the internet?
/ How can data be saved locally?
/ How can the inverter be updated?
/ How can loads be controlled?
/ How can the inverter send signals?
/ How can the inverter be controlled remotely?
/ How is a dynamic power reduction realized?
/ How can devices from third-party suppliers be integrated?
/ How are multiple inverters connected?
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
OVERVIEW OF INTEGRATED INTERFACES
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EXTERNAL INPUT (F.E. FOR A S0-METER)
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FRONIUS SOLAR.NET IN
FRONIUS SOLAR.NET OUT
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USB INTERFACE
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FLOATING RELAY OUTPUT
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DIGITAL INPUTS AND OUTPUTS (I/OS)
(ONE OF THEM IS A DIGITAL OUTPUT FOR ENERGY MANAGEMENT)
1
4
2
4
5
6
7
7
ETHERNET
8
WLAN ANTENNA
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
INTERFACES
FRONIUS GALVO / FRONIUS SYMO
WLAN / Ethernet LAN
Fronius Solar.web, Modbus TCP, JSON
Interface to ripple control receiver
6 inputs or 4 digital inputs/outputs
Inputs: Voltage level low: min. 0V - max. 1.8V; high: min. 3V - max. 30V / Input resistance: 46kOhm
Outputs: 4 Watt @ 12.5 V in total for all four digital outputs when supplied internally
1A @ >12.5V to 24V per digital output when supplied externally by an external power supply
USB (type A socket)
For USB sticks
2x RS422 (RJ45 socket)
Fronius Solar Net, interface protocol
Signalling output
Floating relay output: Signalling, energy management
Max. 250 V AC / 30 V DC and max. 4 A AC / 1 A DC
Datalogger and Webserver
Integrated
External input
S0-meter interface
INTERFACES
FRONIUS GALVO LIGHT / FRONIUS SYMO LIGHT
USB (type A socket)
For USB sticks
2x RS422 (RJ45 socket)
Fronius Solar Net, interface protocol
Signalling output
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Floating relay output: Signalling, energy management
Max. 250 V AC / 30 V DC and max. 4 A AC / 1 A DC
Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW IS THE INVERTER CONNECTED TO THE
INTERNET?
/ The inverter can be connected directly to the router via LAN (Ethernet) or WLAN
/ When using WLAN, a cable connecting the inverter to the router is not required
/ Using the internet connection gives the user access to the free Fronius Solar.web online portal as well
as Fronius Solar.TV and the Fronius Solar.web App
/ The connection to Fronius Solar.web ensures that rapid technical support can be provided in the event
that servicing is required
/ Register for Fronius Solar.web at: www.solarweb.com
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
WLAN/LAN
PV GENERATOR
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FRONIUS INVERTER
ROUTER
FRONIUS SOLAR.WEB
FRONIUS SOLAR.TV
FRONIUS SOLAR.WEB APP
Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW CAN DATA BE SAVED LOCALLY?
/ Data can be saved locally using a USB stick
/ Simply insert a conventional USB stick and the data from the inverter will be stored on the stick
/ The data is saved in a CSV file so that it can easily be processed in Microsoft Excel, for
example
Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW CAN THE INVERTER BE UPDATED?
/ Software updates ensure that the latest version of the software is installed on the inverter
/ The software can be updated using a conventional USB stick; the inverter has an integrated USB
interface for this purpose
/ Save the new software onto the stick, insert it into the inverter and perform the update
/ No additional hardware is required for the update process
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
Download the latest software from: www.fronius.com – Solar
Electronics – Info & Support – Software Downloads
Maximum size of the USB stick: 65 x 30 mm
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW CAN LOADS BE CONTROLLED?
/ The inverters can turn consumers on and off automatically using power thresholds
/ If the output level of the photovoltaic system exceeds the preset ON value, the consumer will be
switched on
/ If the output level of the photovoltaic system falls below the preset OFF value, the consumer will be
switched off again
/ Consumers can be connected to the Fronius Galvo and Fronius Symo inverters in two different ways:
/ using a digital output
/ using a floating relay contact
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
/ The inverters can turn consumers on and off automatically using power thresholds
/ Variant 1 – using a digital output:
Heater example: ON at 2 kW, OFF at 1.5 kW, minimum running time: 60 mins
L
GND
I/0 1
Contactor
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N
Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW CAN LOADS BE CONTROLLED?
/ The inverters can turn consumers on and off automatically using power thresholds
/ Variant 2 – floating relay contact:
/ Direct switch on from max. 30V and 1A DC – or max. 250V and 4A AC
/ Swimming pool pump example: ON at 1 kW, OFF at 0.5 kW
Pin 2 (root)
Supply, e.g.
230V AC
Pin 3 (NO contact)
N
Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW CAN THE INVERTER SEND SIGNALS?
/ Audiovisual alarm devices can be connected to the relay contact
/ When an error occurs, the inverter switches the relay contact and the signal starts
/ The relay contact can be used either as an alarm device or to connect a load
Pin 2 (root)
Supply, e.g.
230V AC
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Pin 3 (NO contact)
N
Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW CAN THE INVERTER BE CONTROLLED
REMOTELY?
/ The ripple control receiver can be connected directly to the inverter so that the PSC can
control it remotely
/ Power reduction and power factor can be controlled using the digital inputs for the ripple
control receiver
/ Digital inputs can be configured by the user
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
Up to eight inputs can be configured, one output is available
for feedback to the PSC.
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW IS A DYNAMIC POWER REDUCTION REALIZED?
/ A S0-meter can be connected directly to the inverter, in order to take self-consumption into
account for feed-in limits (f.e. 70 % of the kWp, max. 5 kW or similar)
/ The meter can connected at the feed-in point or directly in the consumption path
/ The feed-in limit and the number of impulses can be set individually
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
S0-meter
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW CAN DEVICES FROM THIRD-PARTY SUPPLIERS BE
INTEGRATED?
/ The open interfaces permit easy communication between the inverters and third-party components
/ Integrating the photovoltaic system into higher-level energy management or home automation
systems is therefore a simple matter
/ The Fronius Galvo and Symo offer the following open interfaces via Ethernet or WLAN:
/ JSON
/ Modbus TCP
/ For example: Integration into home control system with the Loxone Miniserver to effectively
maximise self-consumption
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
WLAN
Network cable or
WLAN
Router or switch
Parallel operation of Fronius Solar.web and integration into home control system possible.
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
HOW ARE MULTIPLE INVERTERS CONNECTED?
/ Multiple Fronius inverters can be connected to each other via the Fronius Solar Net ring, a bus system
configured as a ring.
/ The data connection for Fronius Solar.Net nodes uses a 1:1 connection with 8-pin data cables and
RJ45 plugs. A termination plug is plugged in at each end of the ring.
/ The Fronius Galvo and Fronius Symo inverters are equipped with the required interfaces (Fronius
Solar.Net IN and Fronius Solar.Net OUT).
/ In a Fronius Solar Net ring, only one Fronius inverter with an integrated datalogger is required; the
remaining inverters must be "light" variants.
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
/ Cabling using the Fronius Solar.Net ring:
1)
Fronius Solar.Net
IN
Fronius Solar.Net OUT
Termination plug
Fronius
Solar.Net OUT
1)
Fronius Solar.Net IN
Termination plug
1) "light" variant
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
THE SEEDS OF OUR INNOVATIONS
14 Fronius Solar
Electronics Division
subsidiaries
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
CONTACT DETAILS
/ The latest information about our innovations and seminar dates can be found on our
homepage:
www.fronius.com
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Fronius International GmbH / first name and surname / Application areas integrated interfaces / 0x.0x.20xx - v04
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