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Sunny Island
SI-
13
BPRE
Diesel
K1
start
14
SI-
13
BPRE
Diesel
K2
contactor
14
SI-
13
BPRE-OE
Mains
K3
14
N
AC-
F2
outlet
L
-
13
SI-
SI-
K4
BP24
contactor
24V=
14
+
SI-
13
BPRE
Sync switch
K5
14
L
Diesel sync.
input
N
Sunny Island
Fig. 3.15: Example of an accelerated switch-over (generator and utility)
*
This relay shall not overcharge the 24 V auxiliary supply output (SMA order name "SI-BP24")! A relay
complying
with
the
"SI-BPRETR".
3.4.9 Connection of a Battery Room Fan and Electrolyte Pump
If lead-acid battery arrays with liquid electrolytes are used as energy stores, the con-
trol of an electrolyte circulation pump is to be connected via the relay terminal K7. A
battery room fan can be controlled via the relay terminal K8. Switch-on and switch-off
criteria can be defined via the menu of the Sunny Island. For wiring see Fig. 3.16.
The switched current of the relays K7 and K8 is a maximum of 5 A at
230 V AC. A detailed limit curve is shown in chapter 18.
BWRI33-12:EE
*
L
N
external distribution
requirements
is
available
- 39 -
Installation & Operating Instructions
L
N
2 A
Grid
L
L
N
N
utility grid
with
the
Generator
start
L
N
G
2 A
PE
Generator
SMA
order
name
SMA Regelsysteme GmbH
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