Description of Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers
The KFD2-SR2-EX2.W is a 2-channel isolated Switch Amplifier 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 switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field circuit. During an error condition, the relays revert to their de-energized state and the LEDs indicate the fault according to NAMUR NE44. An unique collective error messaging feature is available when used with the power rail system.
Features of Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers
• 1-channel isolated barrier
General specifications of Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers | ||
---|---|---|
Signal type | Digital Input | |
Functional safety related parameters of Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers | ||
Safety Integrity Level (SIL) | SIL 2 | |
Supply of Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers | ||
Connection | Power Rail or terminals 14+, 15- | |
Rated voltage | 20 ... 30 V DC | |
Ripple | ≤ 10 % | |
Rated current | ≤ 30 mA | |
Power dissipation | 0.7 W | |
Power consumption | < 0.9 W | |
Input of Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers | ||
Connection side | field side | |
Connection | terminals 1+, 2+, 3- | |
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 | min. 20 ms / min. 20 ms | |
Output of Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers | ||
Connection side | control side | |
Connection | terminals 7, 8, 9 | |
Output | signal ; relay | |
Contact loading | 253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load | |
Minimum switch current | 2 mA / 24 V DC | |
Energized/De-energized delay | approx. 20 ms / approx. 20 ms | |
Mechanical life | 107 switching cycles | |
Transfer characteristics | ||
Switching frequency | < 10 Hz |
Ordering Codes of Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers
KFA6-SR2-Ex1.W KFD0-SD2-Ex1.1045 KFD2-CD2-EX1 KFD2-CRG2-EX1.D KFD2-DWB-1.D KFD2-EB2 KFD2-GU-1 KFD2-GUT-Ex1.D
KFD2-SCD2-EX2.LK KFD2-SH-EX1.T.OP KFD2-SOT2-Ex2 KFD2-SR2-Ex1.W.LB KFD2-SR2-Ex2.W KFD2-ST2-Ex2 KFD2-STC4-1
KFD2-SL2-Ex1 KFD2-SR2-Ex1.W KFD2-STC4-Ex1 KFD2-SR2-EX.1.W.LB KFD2-EB2.R4A.B KFD2-SCD2-EX1.LK KFD2-SR2-EX2.W
KFD2-SL2-EX2.B KFD0-TT-EX1 KFD0-TR-EX1 KFD2-STC4-EX2 KFD2-UFC-EX1.D KFD2-SCD2-EX2-LK KFD2-CD-EX1.32-15
KFD2-STC4-EX1.2O KFD2-SH-EX1.T.OP KFD2-SR2-EX2.2S KFD2-BR-1.PA.93 KFD2-UT2-EX2 KFD2-UFC-EX1.D KFD0-SD2-EX1.1045
KFD2-SOT2-EX1.LB KFD2-STC4-EX1.20 KFD2-STC4-1.20 KFD2-SCD2-EX2.LK KFD2-SCD2-2.LK KFD2-SH-EX1 KFD0-SD2-Ex2.1245
KFD2-SL2-Ex1.LK KFD2-BR-Ex1.3PA.93 KFD2-CD2-EX2 KFD2-UT2-EX2 KFD2-STC4-EX1.2O KFD2-CR4-1.2O KFD2-CD2-EX1 KFD2-SL2-EX2
Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers
KCD2-SCD-1 KCD2-SCD-EX1 KCD2-SR-EX1.LB KCD2-SR-EX2 KCD2-STC-1 KCD2-STC-EX1 KCD2-STC-EX1.2O KCD2-UT2-EX1 KFA6-SR2-Ex1.W KFD0-SD2-Ex1.1045 KFD2-CD2-EX1 KFD2-CRG2-EX1.D KFD2-DWB-1.D KFD2-EB2 KFD2-GU-1 KFD2-GUT-Ex1.D KFD2-SCD2-EX2.LK KFD2-SH-EX1.T.OP KFD2-SOT2-Ex2 KFD2-SR2-Ex1.W.LB KFD2-SR2-Ex2.W KFD2-ST2-Ex2 KFD2-STC4-1 KFD2-STC4-EX2 KFD2-STC4-Ex2 KFD2-UT2-1 KFD2-UT2-2 KFD2-UT2-EX1 KFD2-UT2-Ex2 KFD2-VR4-EX1.26
Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers
Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers
KCD2-SCD-1 KCD2-SCD-EX1 KCD2-SR-EX1.LB KCD2-SR-EX2 KCD2-STC-1 KCD2-STC-EX1 KCD2-STC-EX1.2O KCD2-UT2-EX1 KFA6-SR2-Ex1.W KFD0-SD2-Ex1.1045 KFD2-CD2-EX1 KFD2-CRG2-EX1.D KFD2-DWB-1.D KFD2-EB2 KFD2-GU-1 KFD2-GUT-Ex1.D KFD2-SCD2-EX2.LK KFD2-SH-EX1.T.OP KFD2-SOT2-Ex2 KFD2-SR2-Ex1.W.LB KFD2-SR2-Ex2.W KFD2-ST2-Ex2 KFD2-STC4-1 KFD2-STC4-EX2 KFD2-STC4-Ex2 KFD2-UT2-1 KFD2-UT2-2 KFD2-UT2-EX1 KFD2-UT2-Ex2 KFD2-VR4-EX1.26 KFU8-FSSP-1.D
Pepperl-Fuchs KFD2-SR2-EX1.W Safety Barriers KFD2-SR2-EX1.W Switch Amplifiers
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