SMA SUNNY ISLAND 8.0H Installation Manual page 135

SMA Solar Technology AG
Event or state
The stand-alone grid is
synchronised.
The stand-alone grid is
connected to the generator.
The minimum run time is
running.
The minimum run time ends. If the generator management continues to
The generator
management no longer
requests the generator.
The shut-off delay time is
running.
The shut-off delay time
ends.
The minimum stop time is
running.
The minimum stop time
ends.
Installation Manual
Result
The off-grid inverter connects the stand-alone
grid to the generator.
The generator is feeding current into the stand-
alone grid.
The generator management starts the minimum
run time.
Even if the generator management no longer
requests the generator, the stand-alone grid
remains connected to the generator.
request the generator, the stand-alone grid
remains connected to the generator.
The off-grid inverter supplies the stand-alone grid
and carries out load-free disconnection of the
generator from the stand-alone grid.
The generator management starts the shut-off
delay.
During the shut-off delay time, the generator
management cannot request the generator
again and the off-grid inverter cannot connect
the stand-alone grid to the generator again.
The off-grid inverter stops the generator.
The generator management starts the minimum
stop time.
The off-grid inverter cannot start the generator.
Manual starting on the off-grid inverter is not
possible either.
The generator management cannot request the
generator.
The generator management can request the
generator.
The generator can be started on the off-grid
inverter.
10 External Energy Sources in the Off-Grid System
Internal transfer
relay
Closed, the
stand-alone grid is
connected to the
generator.
Open, the
stand-alone grid is
not connected to
the generator.
SI80H-60H-OffGrid-IA-en-11 135