SMART Current Driver
KFD2-SCD2-Ex2.LK
* 24 V DC supply (Power Rail)
* Current output up to 650 Ω load
* HART-IP and valve positioner
* Line fault detection (LFD)
* Accuracy 0.1 %
* Up to SIL 2 (SC 3) acc. to IEC/EN 61508
| Brand Name: | P+F, P+F |
| Model Number: | KFD2-SCD2-Ex2.LK |
| MOQ: | 1 piece |
| Price: | $22-25 / piece |
General specifications | ||||
Signal type | Analog output | Digital Input | ||
Functional safety related parameters | ||||
Safety Integrity Level (SIL) | SIL 2 | SIL 2 | ||
Systematic capability (SC) | SC 3 | 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 | |||