Configuration Of Pv Inverters In Off-Grid Systems - SMA SUNNY ISLAND 4548-US Operating Manual

SMA Solar Technology America LLC

17.4.2 Configuration of PV Inverters in Off-Grid Systems

The country data set must be set to stand-alone mode in off-grid systems.
You can order PV inverters configured for stand-alone mode or you can configure existing PV inverters
for stand-alone mode (see Section 17.3 "Configuration of the PV Inverters with a Communication
Products", page 151). During the first ten operating hours you can adjust the country data set for
many PV inverters by means of rotary switches (see the manual of the PV inverter).
Setting the Country Data Set via RS485 (e.g. with Sunny WebBox)
The following table shows how the country data set must be set during configuration of the PV inverter
via RS485. The parameter name and the configurable value depend on the PV inverter being used.
Parameter name
Either "Default"
or
"CntrySet"
Setting the Country Data set via Speedwire or BLUETOOTH (e.g. with
Sunny Explorer)
The following table shows how the country data set must be set during configuration of the PV inverters
via Speedwire or BLUETOOTH. The country data set value depends on the PV inverter being used.
Parameter name
Set country standard
The parameter setting "OffGrid" automatically sets the following Sunny Boy parameters to the values
below:
No. Parameters
1 Test current
2 Vac.Min
3 Vac.Max
4 Fac-delta–
Lower range in which the Sunny Boy is active,
based on f
0
Operating Manual
Value
Either "Off-Grid"
or
depending on power frequency, "OFF-Grid50" for 50 Hz power
frequency or "Off-Grid60" for 60 Hz power frequency
Value
Either "Island mode"
or
depending on power frequency, "Island mode 50" for 50 Hz
power frequency or "Island mode 60" for 60 Hz power
frequency
Short descr. Value
mA Off (MSD = 0)
V –12% V
V +10% V
Hz –3.0 (starting from
base frequency f
SI4548-6048-US-BE-en-21
17 PV Inverters
*
AC Nom
AC Nom*
)
0
153