SMA America, LLC
Connecting External Sources
Technical Description
SI5048U-TUS121440
119
An equalization charge can be manually started using the ”520.01 ChrgSelMan” parameter. This
sets the battery management (see 13 ”Battery Management” (page 105)) into the equalization
charge state and requests the generator. This request persists until equalization charge has been
completed.
The following process diagrams provide an overview of the start/stop behavior of the Sunny Island
during manual generator operation:
Generator Interface ”234.07 GnStrMod” = Manual; Start at the Generator
Generator Interface ”234.07 GnStrMod” = Autostart; Start at the Generator
Start:
Manual generator start – the generator runs ”continuously” until stopped. The
generator can only be manually stopped.
Run1h:
Operation for one hour. Once the lockout time has expired, the transition back into
automatic mode follows.
1
Manual generator start
2
”Generator is running” detected, beginning of warm-up phase
3
Internal generator request is ignored
4
Warm-up phase is completed, generator is connected
5
Generator current limit
6
Current is reduced, battery absorption phase
7
Manual generator stop, disconnection of the generator
8
Minimum stop time has expired
* Transfer relay
1
Manual generator start
2
”Generator is running” detected, beginning of warm-up phase
3
Warm-up phase completed
4
Generator is connected
5
Generator current limit
6
Current is reduced, battery absorption phase
7
Manual generator stop, disconnection of the generator
8
Generator is disconnected, beginning of stop time
9
End of stop time
* Transfer relay
