SMA SUNNY ISLAND 6048-US - Page 124

14 Connecting External Sources SMA America, LLC
124 SI4548_6048-US-TB_en-13 Technical description
The following flowcharts provide an overview of the start/stop behavior of the Sunny Island during
automatic generator operation:
Generator Interface "234.07 GnSrtMod" = Manual; Request Via Sunny Island
Generator Interface "234.07 GnSrtMod" = Autostart; Request Via Sunny Island
Multi-phase system
Only the total load power of all line conductors is monitored. Individual phases in a multi-phase
system are not monitored.
The load power is calculated using the Sunny Island power ("111.01 TotInvPwrAt" parameter)
and generator power ("131.01 TotExtPwrAt" parameter).
1 Generator is requested via Sunny Island
2 Manual generator start
3 "Generator is running" detected, beginning of warm up phase
4 Warm-up phase is completed, connection
5 Generator current limit
6 Minimum run time has expired
7 Current is reduced, battery absorption phase
8 Charging process is completed, request signal is disabled
9 Manual generator stop
10 Generator is disconnected
11 Stop time has expired
1 Generator started by Sunny Island
2 Generator Start
3 Beginning of warm up time
4 Warm-up time has expired
5 Generator is connected
6Current limit
7 Minimum running time is expired
8 Current is reduced, battery absorption phase
9 Charging process is completed, generator disconnection
10 Generator power-down time expired, generator disconnection
11 Stop time has expired
Power-dependent generator start
Warm up times, minimum run times and power-down times are also maintained for
power-dependent generator starts.