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PROFIBUS Power Hub Segment Coupler 3 (SK3)
Product Specifications
Redundant Power Feed for 4 Segments with Gateway Redundancy
Figure 2.3
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
■
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.
Coupling
PROFIBUS PA
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.
PROFIBUS
Power Hub
Segment Supply
13
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