Siemens FS20 - Page 105

Mounting and installation of the compact control panels
Power supply (150 W)
5
105 |
354
Building Technologies
008851_s_en_
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Fire Safety
2016
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01
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27
5.7.3.4 Parallel switching of two supply units
NOTICE
Damage to the power supply
Different versions (A4/A5) of the power supply (150 W) may not be switched in
parallel.
Figure 47: Parallel connection of two power supplies (150 W)-A4
NO
NO
C
8
9
6
7
X8
4
5
3
2
1
0
I-begr.
+24V
+B
+B
+24V+24V
+24V
0V
0V
0V
+24V
T6.3A
+24V
8
9
6
7
X11
SA
F
F
BS
SA
NC
NC
NS
S
4
5
3
2
1
12 A ... 20 A
NTC
4.7 k
Ω
MASTER
SLAVE
SV 24V-150W-A4
SV 24V-150W-A4
I-unbegr.
F2:
COMMON
#MAINS
#BATT
VSYS+
VSYS -
3
Battery
NO
NO
C
8
9
6
7
X8
4
5
3
2
1
0
I-begr.
+24V
+B
+B
+24V+24V
+24V
0V
0V
0V
+24V
T6.3A
+24V
8
9
6
7
X11
SA
F
F
BS
SA
NC
NC
NS
S
4
5
3
2
1
I-unbegr.
2
2
4
1