KFD2-CRG2-Ex1.D 24 V DC supply

1-channel isolated barrier

24 V DC supply (Power Rail)

Input 2-wire and 3-wire transmitters and 2-wire current sources

Output 0/4 mA ... 20 mA

2 relay contact outputs

Adjustable energized/de-energized delay

Programmable high/low alarm

Linearization function (max 20 points)

Line fault detection (LFD)

Up to SIL 2 acc. to IEC 61508/IEC 61511

Interface

Programming interface programming socket

Input

Connection side field side

Connection terminals 1, 2, 3

Input I

Input signal 0/4 ... 20 mA

Available voltage ≥ 15 V at 20 mA

Open circuit voltage/short-circuit current 24 V / 33 mA

Input resistance 45 Ω (terminals 2, 3)

Line fault detection breakage I <0.2 mA; short-circuit I > 22 mA

Output

Connection side control side

Connection output I: terminals 10, 11, 12 

output II: terminals 16, 17, 18 

output III: terminals 8+, 7-

Output signal 0 ... 20 mA or 4 ... 20 mA

Output I, II signal, relay

Contact loading 250 V AC / 2 A / cos φ ≥ 0.7 ; 40 DC / 2 A

Mechanical life 5 x 107 switching cycles

Output III Signal, analog

Current range 0 ... 20 mA or 4 ... 20 mA

Open loop voltage max. 24 V DC

Load max. 650 Ω

Fault signal downscale I ≤ 3.6 mA, upscale I ≥ 21 mA (acc. NAMUR NE43)