SMA SI 3324 Installation - Manual (Page 93)

SMA Technologie AG System Examples
Installation Guide SI3324/4248-14:SE2406 Page 93
Other parameters can also be changed for this system. You will find a list of these
parameters in section 17.2.2 "Adjustable System Parameters" (Page 134).
10.2.3 With Autostart and External Switch
If the generator is a 2-wire start type and the inverter and batteries are located a
distance away from the loads to be supplied, then it can be advantageous to be able
to operate the generator via a remote switch located nearby.
The user of the system can install a 3-position switch to place the generator in one of
the following 3 modes of operation:
• Switch position 1 "Stop": The generator is manually stopped.
• Switch position 2 "Auto": The generator is automatically started and stopped by
the Sunny Island 3324/4248.
• Switch position 3 "Start": Generator is immediately started. This is useful when
short-term heavy loads are applied and must be supplied from the generator.
The following figure shows the wiring between the generator and the Sunny Island
3324/4248:
24-1 GenControl Direct Generator type (see section 8.5.3
"Generator Request" (Page 77))
40-2 Autostart On The Sunny Island 3324/4248 can restart
automatically.
40-6 LoadShedding Auto Automatic control of the load shedding relay
by the Sunny Island 3324/4248
40-8 SunnyBoys Yes Set this parameter to Yes when Sunny Boy
inverters are connected to the system.
Load shedding is an important feature for protecting batteries from quick
aging caused by deep discharge. This is only activated when, over a longer
period of time, more energy is consumed than is generated, or when the
generator does not start (lack of fuel, generator fault).
No. Parameter Parameter value/unit Parameter description