Pepperl+Fuchs KFD2-SCD2-Ex2.LK SMART Current Driver, 2-channel isolated barrier, 24 V DC supply (Power Rail).

Technical Data

General specifications

Signal type Analog output

Functional safety related parameters

Safety Integrity Level (SIL) SIL 2

Systematic capability (SC) SC 3

Supply

Connection Power Rail or terminals 14+, 15-

Rated voltage Ur 19 ... 30 V DC

Ripple ≤ 10 %

Rated current Ir ≤ 45 mA at 24 V

Power dissipation ≤ 1 W at 20 mA and 500 Ω load

Power consumption ≤ 1 W

Input

Connection side control side

Connection terminals 7-, 8+, (9+); 10-, 11+, (12+)

Input signal 4 ... 20 mA , limited to approx. 30 mA

Input voltage open loop voltage of the control system ≤ 30 V

Voltage drop approx. 6 V at 20 mA

Input resistance field wiring open circuit : > 100 kΩ

field wiring < 50 Ω : > 100 kΩ when using terminals 1, 2 and 4, 5

Output

Connection side field side

Connection terminals 1+, 2-; 4+, 5-

terminals 3+, 2-; 6+, 5- (no short circuit detection)

Voltage ≥ 13 V at 20 mA

Current 4 ... 20 mA

Load 100 ... 650 Ω , for terminals 1, 2; 4, 5

0 ... 550 Ω , for Terminals 2, 3; 5, 6

Ripple 20 mV rms

Line fault detection breakage, load > 100 kΩ, short-circuit, load < 50 Ω

Fault indication output

Output type open collector transistor (internal fault bus)

Transfer characteristics

Deviation at 20 °C (68 °F), 4 ... 20 mA

< 0.1 % of full scale, incl. non-linearity and hysteresis

Influence of ambient temperature < 2 µA/K (-20 ... 70 °C (-4 ... 158 °F)); < 4 µA/K (-40 ... -20 °C (-40 ... -4 °F))

Frequency range field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)

control side into the field side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)

Rise time 10 to 90 % ≤ 10 ms

Galvanic isolation

Input/Output basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Input/power supply basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Output/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Input/input functional insulation, rated insulation voltage 50 V AC

Indicators/settings

Display elements LEDs

Labeling space for adhesive label at the front