Fronius Datamanager 2.0, Operating Instructions Manual

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UC Editor – AUS
– Demand Re-
sponse Modes
(DRM)
IMPORTANT! To control an inverter via DRM the inverter has to have a Fronius DRM
Interface (item number 4,240,005).
Assembly and installation are described in the Installation Instructions of the Fronius
DRM. The Installation Instructions for the Fronius DRM Interface is available on the
Fronius homepage on:
http://www.fronius.com/QR-link/4204102292
“Reactive power output” – to enter the reactive power output (= +Q
rel
) for DRM 3 in %
“Reactive power input” – to enter the reactive power input (= +Q
rel
) for DRM 7 in %
UC Editor – dy-
namic power re-
duction Energy companies or utility companies can prescribe feed-in limits for an inverter (e.g.,
max. 70% of the kWp or max. 5 kW).
Dynamic power reduction takes account of self-consumption in the household before the
power of an inverter is reduced:
-
An individual limit can be set.
- A meter for determining self-consumption per S0 can be connected directly to the in-
verter.
- A Fronius Smart Meter can be connected to the Datamanager at the D-/D+ connec-
tions for Modbus data.
" No limit " – the inverter converts all available PV energy and feeds it into the public grid.
" Limit for the entire system " – The entire photovoltaic system is limited to a fixed power
limit.
" Limit per phase (not for single-phase devices) " - Each individual phase is measured.
If the permissible feed-in limit is exceeded on one phase, the total power of the inverter
is reduced until the value on the affected phase is permissible again (see example be-
low). This setting is only necessary if required by national standards and regulations.
Example: max. "limit per phase"
Phase 1 Phase 2 Phase 3 Total
Max. possible production [kW] 4 4 4 12
Set value
'Limit per phase' [kW]
2
6
Load requirement in the home net-
work [kW] 2 3 5 10
Load coverage in the domestic grid
via PV system [kW] 2 2 2 6
Drawn from the public grid [kW] 0 1 3 4
Field for entering the total DC system power in Wp.
This value is used as a control reference and also in case of a fault (e. g., meter failure).
Field for entering the max. power in W or % (up to two figures after the decimal place,
negative values are also possible)
If no meter has been selected under the "Meter" menu item:
max. power generated for the entire system
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