SMA Sunny Island 5048 Installation Instructions Manual page 103

SMA
Technologie AG Connecting External Sources
Load Dependent Start
In case increased energy demands arise, the generator can be requested for support.
This function can be switched on or off (default) using the "#241.09 GnPwrEna"
parameter. The function is only effective if the "#241.01 GnAutoEna" parameter is
simultaneously set to On.
The load limit for the request and the generator stop is configured using the "#241.10
GnPwrStr" and "#241.11 GnPwrStp" parameters. The average time by which an
average value for the consumer power is calculated can be set using "#241.12
GnPwrAvgTm". This prevents temporary power consumption peaks that last for several
seconds from causing a load dependent generator start.
If the generator has been started due to the load, the generator runs according to the
minimum generator run time. If, once this time has expired, the average power is below
the cutoff limit, the generator is stopped again.
Only the total consumer power of all phases is monitored. Individual phases in a
multi-phase system are not monitored.
The consumer power is determined from the inverter power ("#112.01
TotInvPwrAt") and generator power ("#132.01 TotExtPwrAt").
Technical Description SI5048-11:EE4206 Page 103