/ Perfect Welding / Solar Energy / Perfect Charging
Fronius energy management relay
/ Energy management function for Fronius inverters
/ Becoming energy self-sufficient through the use of so-
lar electricity and an intelligent energy management sys-
tem is an increasingly attractive option. This is because
the higher the self-consumption quota, the lower the
amount of electricity consumed from the public grid.
/ With the Energy Management Relay, Fronius has deve-
loped a solution for optimising the private consumption
of self-generated solar power. It allows power hysteresis
to be configured for Fronius inverters (Depending on the
inverter type, this function is either built-in as standard
or can be added via a plug-in card). This means that switch
on and off thresholds can be set on the inverter as units of
power (Watt). If the inverter produces more than the set
power (e.g. 2,000 W), a relay output is activated and an
TECHNICAL DATA - SWITCHING CHARACTERISTICS
ENERGY MANAGEMENT RELAY
electrical consumer is operated using the solar electrici-
ty generated instead of feeding power into the public
grid. The relay output is deactivated if the energy yield
drops below a specified value (e.g. 1,800 W).
/ In addition to the relay, Fronius SnapINverter and in-
verters with the Fronius Datamanager also have a digi-
tal energy management output with the same function
(including definable minimum duty cycles).
FRONIUS SNAPINVERTER DC AC
Max. voltage 30 V 250 V
Max. current 1 A 4 A
TECHNICAL DATA - SWITCHING CHARACTERISTICS OF DIGITAL
ENERGY MANAGEMENT OUTPUT ON FRONIUS DATAMANAGER
FRONIUS SNAPINVERTER
12.8 V
1)
Voltage
Maximum output 3.2 W
1)
Applies for Fronius SnapINverters; 10.8 V for older models
(or up to 24 Vdc with external
dc
power supply)
ENERGY MANAGEMENT FUNCTION IN DETAIL
/ If the Energy Management Relay on the inverter is deacti-
vated, the solar power generated is fed into the public grid.
If the inverter produces more than the set power, the relay
switches and the generated power is supplied to the speci-
fied electrical consumers
1)
. Power that is not required conti-
CONFIGURATION DIAGRAM
Energy Management Relay
deactivated
PV GENERATOR
FRONIUS INVERTER
WITH FRONIUS ENERGY
MANAGEMENT RELAY
nues to be fed into the grid. The level of private consumpti-
on is derived from the difference between production and
feed-in.
kW
VA
0x000/000
000
00 00 000
00
ELECTRICITY
/REFERENCE METER
GRID
Energy Management
Relay activated
ELECTRICAL CONSUMERS
(E.G. SWIMMING POOL PUMP, FRONIUS
ENERGY CELL, HEAT PUMP, DISHWASHER,
WASHING MACHINE, AIR CONDITIONING
Power path
1)
Depending on the consumer, an external relay circuit may be required.
SYSTEM, ELECTRICAL bOILER, ETC.)
/ The energy management function is available as standard on all Fronius SnapINverter. Inverters that have already been installed can be easily updated
with the energy management function using the Fronius Datamanager 2.0. The Fronius IG Plus series supports this function from Software version
5.00.49 or higher.
/ Perfect Welding / Solar Energy / Perfect Charging
WE HAVE THREE DIVISIONS AND ONE PASSION: SHIFTING THE LIMITS OF POSSIBILITY.
/ Whether welding technology, photovoltaics or battery charging technology − our goal is clearly defined: to be the innovation leader. With around
3,800 employees worldwide, we shift the limits of what’s possible - our record of over 1,200 granted patents is testimony to this. While others progress
step by step, we innovate in leaps and bounds. Just as we’ve always done. The responsible use of our resources forms the basis of our corporate policy.
Further information about all Fronius products and our global sales partners and representatives can be found at www.fronius.com
v07 Apr 2017 EN
Text and images c orrespond to t he current state of techn ology at the t ime of printing. Subject to mo dificat ions.
All inf ormation is w ithout gua rantee in spite of carefu l editing - liabilit y excluded. C opyright © 2011 Fronius™. All rights re served .
Fronius India Private Limited
GAT no 312, Nanekarwadi
Chakan, Taluka - Khed District
Pune 410501
India
pv-sales-india@fronius.com
www.fronius.in
Fronius Australia Pty Ltd.
90-92 Lambeck Drive
Tullamarine VIC 3043
Australia
pv-sales-australia@fronius.com
www.fronius.com.au
Fronius UK Limited
Maidstone Road, Kingston
Milton Keynes, MK10 0BD
United Kingdom
pv-sales-uk@fronius.com
www.fronius.co.uk
as17
Fronius International GmbH
Froniusplatz 1
4600 Wels
Austria
pv-sales@fronius.com
www.fronius.com
40,0006, 3186,EN v02 Jun 2017
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