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Siemens S5-135U/155U - Page 389

Siemens S5-135U/155U
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9-7
System Manual
C79000-G8576-C199-06
24 V supply for CC/EU and I/Os
F+
L+
I/O Modules
24 V DC
b)
a)
CC/EU
L+
Battery
Power Supply 24V
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 mF per 10 A of load current. Other units which
do not meet this condition can be adapted to this requirement by connecting a
10000 mF / 40 V capacitor in parallel.
10000µF/
40V
CC/EU
F+
L+
230 V AC
I/O Modules
Load Power Supply 24V
Power Supply
Common
Shutdown of the
CC/EU and Load
Power Supply with
a 230 V AC Supply
Analo
g
Input/Output Modules

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