Fieldbus Controller 750-872/020-000
•
43
Hardware
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
3.1.3.2 Device Supply
The PFC is powered via terminal blocks with CAGE CLAMP
®
connections.
The Device Supply generates the necessary voltages to power the electronics
of the controller and the internal electronics of the connected I/O modules.
1
2
3
4
5
6
7
8
DC
DC
24 V
10 nF
24 V
10 nF
0 V
24 V /0 V
24 V
0 V
0 V
750-872/020-000
FiELDBUS
INTERF
ACE
ELECTRONIC
ELECTRONIC
FiELDBUS
INTERF
ACE
I/O
MODULES
Fig. 3.1-2: Device supply
G
087221e
The internal electronics of the controller and I/O modules are electrically
isolated from the field-side power connections and field devices by the use of
DC/DC converters and optocouplers.