参数表节选：的技术参数 KFD2-STC5-Ex2
| General specifications | ||
|---|---|---|
| Signal type | Analog input | |
| 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 | 18 ... 30 V DC | |
| Ripple | within the supply tolerance | |
| Power dissipation | ≤ 1.4 W at maximum load | |
| Power consumption | ≤ 2.6 W at maximum load | |
| Input | ||
| Connection side | field side | |
| Connection | terminals 1+, 2-, 3; 4+, 5-, 6 | |
| Input signal | 4 ... 20 mA | |
| Open circuit voltage/short-circuit current | terminals 1+, 3; 4+, 6: 23 V / 25 mA | |
| Input resistance | max. 265 Ω terminals 2-, 3; 5-, 6 , max. 330 Ω terminals 1+, 3; 4+, 6 | |
| Available voltage | ≥ 16 V at 20 mA ; ≥ 20 V at 4 mA , terminals 1+, 3; 4+, 6 | |
| Output | ||
| Connection side | control side | |
| Connection | terminals 7+, 8-, 9-; 10+, 11-, 12- (sink) terminals 7-, 8+, 9+; 10-, 11+, 12+ (source) see additional information | |
| Load | 0 ... 600 Ω | |
| Output signal | 4 ... 20 mA (overload > 25 mA) | |
| Ripple | max. 50 µA rms | |
| External supply (loop) | 2 ... 30 V DC If the external voltage is > 19 V, a load ≥ ((V - 19) / 0.02) Ω is required. V represents the value of the external voltage. The internal 250 Ω resistor at terminals 9 and 12 can be used as a load. | |
| Transfer characteristics | ||
| Deviation | at 20 °C (68 °F), 4 ... 20 mA ≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage | |
| Influence of ambient temperature | ≤ 0.25 µA/K | |
| Frequency range | field side into the control side: band width with 1 Vpp signal 0 ... 7.5 kHz (-3 dB) safe area to hazardous area: band width with 1 VSS signal 0.3 ... 7.5 kHz (-3 dB) | |
| Settling time | 200 µs | |
| Rise time/fall time | 100 µs | |
| Galvanic isolation | ||
| Output/power supply | functional insulation, rated insulation voltage 50 V AC | |
| Output/Output | functional insulation, rated insulation voltage 50 V AC | |
| Indicators/settings | ||
| Display elements | LED | |
| Labeling | space for labeling at the front | |
