Siemens S5-155U System Manual page 381

Common shutdown of the
CC/EU and load power supply
with a 230 V AC supply
System Manual
C79000-B8576-C109-03
• • 24 V supply for CC/EU and I/Os
CC/EU
24 V Power Supply
24 V DC
Supply for the enable inputs from:
a) Battery
b) Terminals for 24 V on the front plate of the power supply
Proper functioning is ensured if the 24 V load power supply has an
output capacitance of at least 4700 µF per 10 A of load current. Other
units which do not meet this condition can be adapted to this
requirement by connecting a 10000 µF/40 V capacitor in parallel.
230 V AC
Load Power Supply 24 V
The 460 Analog Input Module
a)
I/O Modules
F +
L +
L +
I/O Modules
F +
CC/EU
L+
Power Supply
Battery
b)
9
µ
10000 F/
40 V
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