SMA SC 250U - Manual (Page 28)

Parameters SMA America, LLC
28 SCUS-BE-BUS120514 User Manual
6 Parameters
6.1 Description of Parameters
The following table shows the parameters that are visible to the user. The installation guide of the
Sunny Central also shows the parameters that are visible to the installer.
Parameter Name Range Default Parameter Description
Ackn –––, Ackn,
NoAckn ––– Acknowledge an error manually
You can acknowledge an error with the
optional Sunny WebBox. Refer to
Section 7.1.6 ”Acknowledge the Error
with the Sunny WebBox” (page 39).
CardFunc –––, ForcedWrite,
StoEvtHis,
StoFailHis ––– Saving ring memory with errors and
events on SD card.
ChkGdFrqLo 57 ... 59.8 Hz 59.3 Hz Minimum frequency for Sunny Central
operation.
If the frequency drops below the value
given in ChkGdFrqLo, the Sunny Central
will shut down after the time period given
in ChkGdFrqLoT.
ChkGdFrqLoT 160 ... 300000 ms 160 ms
ChkGdFrqMax 60.5 ... 64.5 Hz 60.5 Hz Maximum frequency for Sunny Central
operation.
If the frequency exceeds the value given
in ChkGdFrqMax, the Sunny Central
shuts down immediately.
ChkGdFrqMin 57 ... 59.8 Hz 57 Hz Minimum frequency for Sunny Central
operation.
If the frequency drops below the value
given in ChkGdFrqMin, the Sunny
Central shuts down immediately.
ChkGdVtgHi 288 ... 321.3 Vrms 304.7 Vrms Maximum voltage for Sunny Central
operation.
The Sunny Central shuts down within 1
second in case the voltage exceeds the
value defined in ChkGdVtgHi.
ChkGdVtgLo 149.6 ... 265.9
Vrms 243.8 Vrms Minimum voltage for Sunny Central
operation.
The Sunny Central shuts down within 2
seconds in case the voltage exceeds the
value defined in ChkGdVtgLo.