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
6
Current 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.
Summary of Contents for Sunny Island 4548-US
Page 2: ......
Page 14: ......
Page 240: ...www SMA Solar com SMA Solar Technology SMA America LLC www SMA America com...