SMA SI 4548-US - Manual (Page 60)

6 Electrical Connection SMA America, LLC
60 SI4548-6048-US-BE-en-20 Operating Manual
Generator start
The Sunny Island can control generators. The Sunny Island directly supports generators that can be
started/stopped using a single contact.
6.4.7 BatVtgOut Power Supply
The battery voltage is conducted to the outside at these terminals. The battery voltage is fused at both
poles by PTC resistors (max. 0.75 A). Depending on the internal temperature of the Sunny Island, the
tripping threshold is over 0.75 A.
This connection can be used, for example, to supply a DC contactor for load shedding.
Connecting the BatVtgOut Voltage Supply
1. Pierce a hole at a suitable location in the cable support sleeve using a sharp object.
2. Starting from the outside, lead the insulated conductors with bootlace ferrules through the hole
in the Sunny Island.
Default settings of the relays
Relay 1 is preset to the "AutoGn" generator start function and relay 2 to the "AutoLodSoc" load
shedding function.