750 XTR Series
System Features
System manual | Version: 2.0.0
23
Figure 10: Potentials of the Power Jumper Contacts
1
Spring contact
Potential of the field power supply
(if
present)
6
Blade power jumper contact
2
Spring contact
0 V/ground potential of the field
supply (if present)
5
Blade power jumper contact
3
Spring contact
Functional ground (if present)
4
Blade power jumper contact
3.1.5.3 DIN-Rail Contact (Functional Ground)
Functional ground increases immunity to electromagnetic interference.
Some components of the I/O system have a DIN-rail contact that diverts electromagnetic
interference to the DIN-rail.
Figure 11: DIN-Rail Contact
The bottom CAGE CLAMP
®
connections of the supply modules allow optional connection
of a field-side functional ground.
Many components of the I/O system transmit electromagnetic interference to the DIN-rail
via DIN-rail contacts. The DIN-rail contacts of the modules are automatically connected
when they are snapped on to the DIN-rail.
