Pepperl+Fuchs K-System Manual page 31

K-System – Isolated Barriers
Mounting and Installation
Supply with Power Feed Module
Danger!
Danger to life from electric shock
Absent or insufficient insulation can result in electric shock.
Only connect supplies that provide protection against electric shock to power feed modules
(e. g. SELV or PELV).
Caution!
Property damage from use of isolators for Power Rail supply
Using the isolators for Power Rail supply can damage the isolators and make
the Power Rail fail.
Do not supply the Power Rail via isolators.
Connecting the Power Supply
Connect the power supply via the Power Rail.
Non-Redundant Supply
The power feed module mounts on the Power Rail for easy and reliable distribution of power
to all connected isolators. This method eliminates the wiring loops (daisy chain) necessary
on a conventional installation without Power Rail.
Figure 3.8
1 Replaceable fuse
2 Power feed module
3 Power Rail
1 2
1 2 3
4 5 6
7 8 9
10 11 12
13 14 15
Power Rail installation
1 2 3 1 2 3 1 2 3 1 2 3
4 5 6 4 5 6 4 5 6 4 5 6
7 8 9 7 8 9 7 8 9 7 8 9
10 11 12 10 11 12 10 11 12 10 11 12
13 14 15 13 14 15 13 14 15 13 14 15
24 V DC
3
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