Fronius GEN24 Operating Instructions Manual page 69

3 P = 50 %, Q = 0 %
4 P = 95 %, Q = -32 %
In addition to the four points, the following parameters also come into play:
Parameter Range of val-
ues
0 % ‑ 120 %
"Lock-In
Voltage-De-
pendent (% of
Nominal
Voltage)"
0 % ‑ 120 %
"Lock-Out
Voltage-De-
pendent (% of
Nominal
Voltage)"
0 % ‑ 100 %
"Lock-Out P-
Dependent (%
of Nominal Ap-
parent Power)"
Description
AC voltage in per-
cent [%] related to
the nominal voltage.
If this value is ex-
ceeded, the Q(P)
characteristic is ac-
tivated.
AC voltage in per-
cent [%] related to
the nominal voltage.
If this value is under-
shot, the Q(P) char-
acteristic is deactiv-
ated. The lock-out
limit has priority
over the lock-in limit.
Effective power in
percent [%] related
to the nominal ap-
parent power S . If
N
this value is under-
shot, the Q(P) char-
acteristic is deactiv-
ated.
Supplementary de-
scription
With the voltage-de-
pendent Lock-In/
Lock-Out values, it
can be set that the
Q(P) control is deac-
tivated at low
voltages.
The different values
for activation (Lock-
In) and deactivation
(Lock-Out) enable a
hysteresis to avoid
unintentionally fre-
quent switching
on/off of the func-
tion. For this, the
Lock-In value must
be greater than the
Lock-Out value.
With the effective
power-dependent
lock-out values, it
can be set that the
Q(P) control is deac-
tivated at low active
powers.
For characteristic
curves with a react-
ive power not equal
to 0 % at data point
1, a reactive power
of 0 % is approached
again when this ef-
fective power value
is undershot. Other-
wise, in the case of
effective powers
which are lower than
defined in data point
1, the reactive power
belonging to data
point 1 remains act-
ive.
69