2 XN-312-GW-EC gateway
2.8 Potential relationship between the components
XN-312-GW-EC gateway 07/20 MN050010-EN
Eaton.com
21
2.8 Potential relationship between the components
The entire XN300 system operates with a common supply voltage. All XN300
slice modules feature a contact point on the back that is used to establish a
functional earth connection to the DIN-rail. Moreover, the protective earth
and the functional earth have the same potential in XN300 systems. Finally,
the EtherCAT field bus and the XN300 system are galvanically isolated from
each other.
Common
•
0V
•
Figure 11:
Function principle of XN300 system
V+
0 V
V+
0 V
XN-312
CPU system
XN-322
XN-322
system bus
master
U
POW
X3
DC
DC (24 V DC)
n = ≦ 31
n = 1
U
BP_24V
+24 V DC, 1.6 A
U
BP_5V
+5 V DC, 1.6 A
GND
GND
XN300-Assist
interface
EtherCAT
EtherCAT
interface
