PROFIBUS Power Hub Segment Coupler 3 (SK3)
Product Specifications
2
016-
10
13
Redundant Power Feed for 4 Segments with Gateway Redundancy
Figure 2.3
MBHC-FB-4R.HSC motherboard for the redundant supply of 4 segments combined
with the MB-FB-GTR1 motherboard and 2 gateway modules HD2-GTR-4PA for
redundant gateway coupling.
The redundant system with a redundant gateway coupling consists of the following
components:
■
Combined Power Hub gateway motherboard MBHC–FB–4R.HSC
■
HD2-GTR-4PA* (x 2)
■
Power supply modules (x 8)
■
Sub-D cable, 9 pins
Optional components:
■
Diagnostic module
■
Surge protectors TPH-LBF-IA1.36.DE* (x 4)
■
Earth bar for surge protectors ACC–LBF–EB.4
PR
OFIB
US DP
4 x P
A
Fieldbus
T
runk
Coupling
Segment Supply
PROFIBUS
Power Hub
PROFIBUS PA
P
owe
r
Note!
Combining a simplex gateway motherboard with a redundant Power Hub motherboard is not
recommended. Since a fault in the coupling of DP to PA results in failure of all 4 segments at
once, but the failure of a single segment does not have any effect on the remaining segments,
increased segment availability can be achieved most easily with redundant coupling.
