Pepperl+Fuchs isolated barrier KFD2-SOT2-EX1.LB

Switch Amplifier KFD2-SOT2-EX1.LB

Pepperl+Fuchs isolated barrier KFD2-SOT2-EX1.LB
Features
• 1-channel isolated barrier
• 24 V DC supply (Power Rail)
• Dry contact or NAMUR inputs
• Passive transistor output, non-polarized
• Passive fault output, non-polarized
• Line fault detection (LFD)
• Reversible mode of operation
• Up to SIL 2 acc. to IEC 61508


Function
This isolated barrier KFD2-SOT2-EX1.LB is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area.Pepperl+Fuchs isolated barrier KFD2-SOT2-EX1.LB
The proximity sensor or switch controls two passive transistors 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 enables or disables line fault detection of the field circuit.Pepperl+Fuchs isolated barrier KFD2-SOT2-EX1.LB
During an error condition, the transistors revert to their deenergized state and 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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