Siemens FS720 Mounting & Installation page 114

Installing, exchanging and connecting modules
7
Power supply (150 W)
7.6.4.5 Parallel switching of three supply units
SV 24V-150W-A5 MASTER
X11
SB 9
8
SB
SA 7
SA 6
5
F
F 4
BS
NO 3
NS
NO
2
C
S 1
X8
0
I-begr. +B
T6.3A
I-unbegr. 9
+B
8
+24V
7
+24V
+24V 6
5
+24V +24V
4
+24V
3
0V
0V 2
1
0V
SV 24V-150W-A5 SLAVE 1
X11
SB 9
SB 8
7
SA
SA 6
5
F
F 4
BS
NO 3
NS
NO
2
C
S 1
X8
0
+B
T6.3A I-begr.
I-unbegr.
+B 9
8
+24V
+24V 7
6
+24V
5
+24V +24V
+24V 4
3
0V
2
0V
1
0V
114 | 248
Building Technologies
Fire Safety
2
NTC 4.7 kΩ
2
F2: 12 A ... 20 A
3
Figure 57: Parallel switching of three power supply units (150 W)-A5
#BATT
#MAINS
COMMON
+VSYS
4
-VSYS
Battery
SV 24V-150W-A5
X11
9 SB
8 SB
7
SA
6 SA
5 F
4
F
5
BS
3
NO
NS
2
NO
C
1 S
X8
0
+B I-begr.
9 +B I-unbegr.
8
+24V
7
+24V
6 +24V
5
5 +24V +24V
4
+24V
3
0V
2
0V
1 0V
1
SLAVE 2
T6.3A
A6V10210390_m_en_--
2018-08-29