SMA SC 250U - Manual (Page 30)

Parameters SMA America, LLC
30 SCUS-BE-BUS120514 User Manual
Ofs_h-Total 0 ... 2147483 h 0 h Total number of operational hours with
grid feeding
Changing the Ofs_h_Total parameter
may be necessary if you exchange the
computer assembly (BFR) of the Sunny
Central and want to transfer the data
from the old device.
Plimit 0 ... 1000 kW 250 kW
(SC250U)
500 kW
(SC500U)
500 kW
(SC500HE-
US/SC500HE-
CA) Upper limit for AC output power
This parameter cannot be changed.
Pmax 0 ... 250 kW
(SC250U)
0 ... 500 kW
(SC500U)
0 ... 500 kW
(SC500HE-US) 250 kW
(SC250U)
500 kW
(SC500U)
500 kW
(SC500HE-
US/SC500HE-
CA) Output limit of the Sunny Central
The output power of the Sunny Central
can be reduced with this parameter.
PVPwrMinTr 0 ... 1200 kW 10 kW
(SC250U)
20 kW
(SC500U)
20 kW
(SC500HE-
US/SC500HE-
CA) MPP tracking
If the output exceeds the value
PVPwrMinTr, the Sunny Central will wait
for the period of time set in PVPwrMinTrT
before it begins to seek the Maximum
Power Point.
PVPwrMinTrT 1 ... 1800 s 600 s
PVStrT 1 ... 1800 s 90 s Initial voltage of the Sunny Central
If the voltage increases over the value set
at PVVtgStr, the Sunny Central will start
after waiting for the period of time set at
PVStrT.
PVVtgStr 0 ... 1200 V 390 V
Serial Number Serial number of the Sunny Central.
This parameter cannot be changed.
Parameter Name Range Default Parameter Description