SMA SC 250U User Manual
Page 29

SMA America, LLC
Parameters
User Manual
SCUS-BE-BUS120514
29
ChkGdVtgMax
288 ... 332,4 Vrms 332,4 Vrms
Maximum voltage for Sunny Central 
operation.
If the voltage exceeds the value defined 
in ChkGdVtgMax, the Sunny Central 
shuts down immediately.
ChkGdVtgMin
138,5 ... 265,9 Hz 138,5 Hz
Minimum voltage for Sunny Central 
operation.
If the voltage drops below the value 
defined at ChkGdVtgMin, the Sunny 
Central shuts down immediately.
ChkGnFrqLo
Sunny Central operation with a 
generator.
More information on parameter settings 
and operating the Sunny Central with a 
generator can be obtained from SMA 
America.
ChkGnFrqLoT
ChkGnFrqMax
ChkGnFrqMin
ChkGnVtgHi
ChkGnVtgLo
ChkGnVtgMax
ChkGnVtgMin
Dt
yyyymmdd
Current Date.
Here you can set the current date.
Ofs_E-Total
0 ... 214748364 
kWh
0 kWh
The Sunny Central's total energy yield
Changing the Ofs_E_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.
Ofs_h-On
0 ... 2147483 h
0 h
The Sunny Central's total number of 
hours of operation
Changing the Ofs_h_On 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.
Parameter Name Range
Default
Parameter Description
