FieldConnex® Basic Segment Coupler
Installation
2
016-
04
19
Direct Supply with Power Supplies
A complete power solution for a K-System installation is possible by using the following power
supply:
■
KFA6-STR-1.24.4 from 115/230 V AC to 24 V DC/4 A
The power supplies snap on the Power Rail to easily and efficiently distribute power to the
isolated barriers.
Figure 3.6
Integrated power supply (4 A)
3.4
Shielding and Grounding
In order to achieve the highest immunity against electromagnetic disturbances, appropriate
shielding and grounding is mandatory. Connect all shields of PROFIBUS DP and
PROFIBUS PA cables to earth, both at the Segment Coupler and at the field devices. If a cable
leads into the explosion hazardous area, ensure to route an equipotential bonding between
each grounding point.
If the PROFIBUS PA field devices used comply with your specific industry requirements without
the need to ground the cable shield at the device, leave the cable shield open and ensure that it
is properly isolated. Refer to the PROFIBUS PA Installation Guideline for further information.
The cable shields of the PROFIBUS DP (terminal 9) and PROFIBUS PA cables (terminals
1 and 4) are interconnected internally and routed to functional earth (FE, terminal 10).
1
Power supply
2
Power Rail
1
3
4
6
2
5
1
3
4
6
2
5
13
12
9
10
7
14 15
11
8
13
12
9
10
7
14 15
11
8
2
1
115/230 V AC
24 V DC
