Operating Procedure For Generators Without An Autostart Function - SMA SUNNY ISLAND 8.0H Installation Manual

10 External Energy Sources in the Off-Grid System
10.9.2 Operating Procedure for Generators without an Autostart
Function
Event or state
The generator
management requests the
generator.
You start the generator
(e.g. with a cable pull).
You close the switch-
disconnector between the
generator and the off-grid
inverter.
The generator voltage is
within the configured
limiting values for voltage
and frequency.
The warm-up time is
running.
The warm-up time ends.
The stand-alone grid is
synchronised.
The generator is connected. The generator is feeding current into the stand-
The minimum run time is
running.
The minimum run time ends. ‒
The generator
management no longer
requests the generator.
136 SI80H-60H-OffGrid-IA-en-11
Result
The off-grid inverter controls a signal generator.
The signal generator indicates when you should
start the generator.
The generator starts.
The generator voltage builds up.
The generator is connected to the off-grid
inverter.
The generator management starts the warm-up
time.
‒
The off-grid inverter synchronises the stand-alone
grid to the generator voltage.
The off-grid inverter connects the stand-alone
grid to the generator.
alone grid.
The generator management starts the minimum
run time.
Even if generator management no longer
requests the generator, the generator remains
connected to the stand-alone grid.
The off-grid inverter no longer controls the signal
generator. The signal generator indicates that
you should disconnect the generator from the off-
grid inverter.
SMA Solar Technology AG
Internal transfer
relay
Open, the
stand-alone grid is
not connected to
the generator.
Closed, the
stand-alone grid is
connected to the
generator.
Installation Manual