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Switch Amplifier

Maker: Pepperl Fuchs

Type : KFD2-SR2-Ex2.2S

 

Name- Switch Amplifier</h6
Manufacturer :Pepperl Fuchs
Model :

KFD2-SR2-Ex2.2S
Technical Specification data
Features
• 2-channel isolated barrier
• 24 V DC supply (Power Rail)
• Dry contact or NAMUR inputs
• Usable as signal splitter (1 input and 2 outputs)
• 2 x 2 relay contact outputs with AND logic
• Line fault detection (LFD)
• Reversible mode of operation
• Up to SIL 2 acc. to IEC 61508
General specifications
Signal type : Digital Input
Functional safety related parameters
Safety Integrity Level (SIL)  : SIL 2
Supply
Connection : Power Rail or terminals 14 , 15-
Rated voltage  : Ur 20 … 30 V DC
Ripple : ≤ 10 %
Rated current Ir : ≤ 50 mA
Power dissipation : 1 W
Power consumption : < 1.3 W
Input
Connection side : field side
Connection terminals : 1 , 2 , 3-; 4 , 5 , 6-
Rated values : acc. to EN 60947-5-6 (NAMUR)
Open circuit voltage/short-circuit current  : approx. 8 V DC / approx. 8 mA
Switching point/switching hysteresis 1.2 … 2.1 mA / approx. 0.2 mA
Line fault detection breakage I ≤ 0.1 mA , short-circuit I > 6 mA
Pulse/Pause ratio ≥ 20 ms / ≥ 20 ms
Output
Connection side : control side
Connection output I : terminals 7, 8 ; output II: terminals 8, 9 ; output III: terminals 10, 11 ; output IV: terminals 11, 12
Output I, II, III, IV : channel 1, 2; relay
Contact loading  : 50 V AC/1 A/cos φ > 0.7; 40 V DC/1 A resistive load
Minimum switch current : 1 mA / 24 V DC
Energized/De-energized delay : approx. 20 ms / approx. 20 ms
Mechanical life : 108 switching cycles
Collective error message : Power Rail
Transfer characteristics
Switching frequency : ≤ 10 Hz
Galvanic isolation
Input/Output : reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff .
Input/power supply : reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff.
Output/power supply : basic insulation according to IEC/EN 61010-1, rated insulation voltage 32 Veff , functional insulation, rated insulation voltage 50 Veff .
Output/Output : basic insulation according to IEC/EN 61010-1, rated insulation voltage 32 Veff , functional insulation, rated insulation voltage 50 Veff .

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