Sunny Island 4500
Installation & Operating Instructions
BWRI45-13-EE0304
- 194 -
SMA Regelsysteme GmbH
„PARALL“ (3+9)
Parameter Unit
Min.
Max.
Default
Description
405_Uext min
(A)
V
150
260
200
Lower limit for AC voltage
406_Uext max
(A)
V
150
260
255
Upper limit for AC voltage
407_Fext nom
(A)
Hz
40
70
50 (60)
Nominal AC frequency, Sunny Island is in “grid-
tied” operation (RUN_I), 50 Hz (60 Hz) design
This value will be used for limiting the generator’s
load, if “604_GenSet Ctrl” is set to F_MAINS or
BOTH.
408_Fext min
(A)
Hz
40
70
47 (57)
Lower limit for AC frequency, 50 Hz (60 Hz) design
409_Fext max
(A)
Hz
40
70
56 (66)
Upper limit for AC frequency, 50 Hz (60 Hz) design
411_Iac chrg mx
(A)
A
0
16
12
Max. current the Sunny Island may take out of the
AC grid in “grid-tied“ operation (RUN_I, battery is
being charged in the process)
420_DroopFreq
(D)
Hz/
P
nom
-5
+5
-1,000
If the system’s frequency will differ from the nomi-
nal value by this amount, the Sunny Island will
feed Pnom into the island grid in droop mode (see
2.1.3).
421_DroopVolt
(D)
%/
Q
nom
-25
+25
-6,000
If the system’s voltage will differ from the nominal
value by this amount, the Sunny Island will feed
Qnom into the island grid in droop mode (see
2.1.3).
422_Ps2off
(D)
kW
0
10
0,00
Relates to two/three Sunny Island in parallel con-
figurations (see Chapter 11.6.1): If the cumulative
load on all Sunny Islands falls below this value, the
Slave2 Sunny Island will go idle
If one of the parameters 422, 423 or 424 is set to a
value different from 0.00, all these parameters
have to be set to reasonable values.
423_Ps2on3off
(D)
kW
0
16
0,00
Relates to two/three Sunny Island in parallel con-
figurations (see Chapter 11.6.1): If the cumulative
load on all Sunny Islands falls below this value, the
Slave3 Sunny Island will go idle, resp. if it raises
above this value, the Slave2 Sunny Island will be
activated.
If one of the parameters 422, 423 or 424 is set to a
value different from 0.00, all these parameters
have to be set to reasonable values.