Fronius GEN24 Operating Instructions Manual page 47

Overfrequency
Parameter Range of val-
ues
"Calculation P
max
Mode Overfre-
P -P
m
quency"
P
max
P -P
n
P
max
P -P
m
45 ‑ 66 [Hz]
"Activation
Threshold Over-
frequency"
0.01 ‑ 300 [%/
"Gradient Over-
frequency" Hz]
45 ‑ 66 [Hz]
"Stop Fre-
quency - Over-
frequency"
-100 ‑ 0 [%]
"Power at Stop
Frequency -
Overfrequency"
45 ‑ 66 [Hz]
"Upper Deactiv-
ation Threshold
Overfrequency"
Description
= Indicates the reference
power for calculating the
(k*df)
m
power limit in the event of
=
overfrequency.
(k*df)
n
Reference power
=
- P → Momentary
m
(k*df)
n
power when the fre-
quency limit value is
exceeded.
- P → Nominal power
n
of the device.
Frequency limit value
above which the power re-
duction takes place.
Gradient by which the ef-
fective power is reduced.
Example - conversion from
static to gradient:
Static s = 5 % → Gradient k
= 1/(0.05*50Hz) =
40 %/Hz
Frequency value at which
the power reduction ends.
Power when the set fre-
quency limit value "Stop
Frequency - Overfre-
quency" is reached. Ad-
justable between 0 % and
full charging power
(-100 %).
In use if "Mode" - "On (with
Hysteresis)" is set.
If the grid frequency falls
below this value, the fre-
quency-dependent power
reduction is terminated,
taking into account the
settings under "Fre-
quency-dependent Power
Control - General".
Availability
47