Sunny Island Electrical Connection
SMA
Solar Technology AG
68
SI2012_2224-TEN082311
Technical Description
7.7 Configuring a System with Several Sunny Islands
1)
The Sunny Island can be configured for various system combinations:
•
Single-phase system with one Sunny Island
•
Single-phase system witn two or three Sunny Islands connected in parallel
•
3-phase system with three Sunny Islands (one Sunny Island per phase)
Carry out the configuration before the first commissioning of the system. Each Sunny Island must be
configured with the aid of the rotary code switch. Upon delivery this rotary code switch is set to "0".
The rotary code switch is found on the back of the back of the display, on the inside of the lower
enclosure cover of the Sunny Island.
To configure the system proceed as follows:
With a screwdriver (2.5 mm), turn the mark on the rotary code switch to the desired position.
Set the rotary code switch to
-
0 for master
-
1 for slave 1
-
2 for slave 2
1)
These applications are only possible with firmware versions 3.0 and above.
Please note:
The position of the rotary code switch must only be changed if you intend to operate more
than one Sunny Island in your system!