PEPPERL+FUCHS Intrinsic Safety Barriers Isolated Barriers K-System Switch Amplifier KFD2-SR2-Ex1.W.LB
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PEPPERL+FUCHS Switch Amplifier KFD2-SR2-Ex1.W.LB
Intrinsic Safety Barriers Isolated Barriers K-System Switch Amplifier KFD2-SR2-Ex1.W.LB
1-channel isolated barrier
24 V DC supply (Power Rail)
Dry contact or NAMUR inputs
Usable as signal splitter (1 input and 2 outputs)
Relay contact output
Fault relay contact output
Line fault detection (LFD)
Reversible mode of operation
Up to SIL 2 acc. to IEC 61508/IEC 61511
Function :
This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts)
from a hazardous area to a safe area.
The proximity sensor or switch controls a form C changeover relay contact for the safe area load.
The normal output state can be reversed using switch S1. Switch S2 allows output II to be switched between a signal output or an error message output.
Switch S3 is used to enable or disable line fault detection of the field circuit. During an error condition,
the relays revert to their deenergized state and the LEDs indicate the fault according to NAMUR NE44.
A unique collective error messaging feature is available when used with the Power Rail system.
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