Operating Components For Field Bus Power Supply - Pepperl+Fuchs KLD2-PR-Ex1.IEC. Manual

Power repeater / power supply according to IEC 61158-2
FOUNDATION FieldbusPower supply, connections and operating
The following illustration shows the operating components of power repeaters without
an intrinsically safe interface
Switch S2
I = power supply
II = no power supply
Switch S1
Here also the rule applies that the field bus terminator must be turned on the host
side if the power repeater represents the last instrument in the bus segment.
The power repeater has a permanently integrated field bus terminator
on the field side that cannot be turned off.
The position of Switch S2 must be observed in the case of these power repeaters as
well (see page

7.5.2 Operating components for field bus power supply

The field bus power supplies do not have any operating components.
The KLD2-STR-1.24.400.IEC and KLD2-STR-NI1.13.225.IEC power supplies have
an integrated field bus terminator that cannot be turned off on the field side.
If a power supply is used on a bus segment, it must always be con-
nected at the end of a bus segment.
Subject to reasonable modifications due to technical advances.
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Switch S1
1 = bus terminaton on
0 = bus termination off
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