Sunny Island Electrical Connection SMA Solar Technology AG
66 SI2012_2224-TEN082311 Technical Description
7.6.4 BatVtgOut Power Supply
The battery voltage is conducted to the outside at these terminals. It is fused at both poles by PTC
thermistors (max. 0.75 A) and can fluctuate depending on the battery status. This connection can,
for example, be used to supply a DC contactor for load shedding.
Proceed as follows when connecting the power supply:
1. Pierce the rubber plugs with a pointed tool.
2. Fit the cables with wire sleeves.
3. Introduce both cables from the outside
through the opening.
4. Plug one wire into each of the "BatVtgOut"
contacts of the 4-pole terminal included.
5. Tighten the screws of the contact.
6. If needed, install DigIn before you insert
the plug into the "DigIn BatVtgOut" socket
on the board.
7.6.5 DigIn Digital Input
These terminals function as a digital input for external electric sources. For example, the feedback
contact for the GenMan (GenRn) is connected here.
Information
If you connect a GenMan, or operate the system with the generator and utility (GenGD)
in parallel, use the relays on the master device in order to activate the respective
functions.
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