SMA SI 4548-US - Manual (Page 77)

SMA America, LLC 9 Switching On and Off
Operating Manual SI4548-6048-US-BE-en-20 77
5. Monitor the generator startup and check that the Sunny Island switches to charge mode.
6. Check for error-free functioning of all other energy generators in the system.
Charging the batteries
After recommissioning, it is important that the batteries are charged. If an autostart generator is
present in the stand-alone grid, the Sunny Island will request the generator after a few minutes.
Battery-preservation mode after recommissioning
If, after recommissioning, the Sunny Island immediately switches into battery-preservation mode
(see Section 13.6 "Battery-Preservation Mode", page 113), disconnect all loads from the AC
output.
The loads can be reconnected once the Sunny Island enters the state of charge. A precondition
for this is that a generator capable of providing the required power is connected (see
Section 20.10 "Procedure during Emergency Charge Mode", page 222).