Example: Feed-in limit
(not taking into account the efficiency)
PV system to Fronius inverter: 5000 W
Consumption in home: 1000 W
Maximum permitted power of feeding in of the entire
system:
60% = 3000 W
In this example, only 3000 W may be fed into the grid at the grid feed-in point.
However, loads that are located between the inverter and grid feed-in point can
be supplied by means of additional feed-in of the inverter and are adjusted.
I/O power man-
agement
General
In this menu item, settings relevant for a distribution network operator (DNO) are
made. An effective power limitation in % and/or a power factor limitation can be
set.
IMPORTANT!
Select the "Technician" user for settings in this menu item, enter and the pass-
word for the "Technician" user and confirm. Settings in this menu area must only
be made by trained and qualified personnel.
"Input pattern" (assignment of individual I/Os)
1 click = white (contact open)
2 clicks = blue (contact closed)
3 clicks = grey (not used)
"Power factor (cos φ)"
"ind" = inductive
"cap" = capacitive
"DNO feedback"
When the rule is enabled, output "DNO feedback" (pin 1 recommended) must be
configured (e.g. for operating a signalling device).
For "Import" or "Export", the data format *.fpc is supported.
Control priorities
For setting the control priorities for the ripple control signal receiver, the export
limitation and control via Modbus.
1 = highest priority, 3 = lowest priority
Connection dia-
gram - 4 relays
The ripple control signal receiver and the I/O terminal of the inverter can be con-
nected to one another as shown in the connection diagram.
For distances of over 11 yd between the inverter and the ripple control signal re-
ceiver, a CAT 5 cable is recommended as a minimum and the shielding must be
connected on one side at the push-in terminal of the data communication area
(SHIELD).
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