Description
Product details
1-channel isolated barrier 24 V DC supply (Power Rail) Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources Output 4 mA ... 20 mA current sink/current source Terminals with test points Up to SIL 2 acc. to IEC/EN 61508 General specifications Signal type Analog input Functional safety related parameters Safety Integrity Level (SIL) SIL 2 Supply Connection Power Rail or terminals 14+, 15- Rated voltage 18 ... 30 V DC Ripple within the supply tolerance Power dissipation ≤ 1 W at maximum load Power consumption ≤ 1.6 W at maximum load Input Connection side field side Connection terminals 1+, 2-, 3 Input signal 4 ... 20 mA Open circuit voltage/short-circuit current terminals 1+, 3: 23 V / 25 mA Input resistance max. 265 Ω terminals 2-, 3 , max. 330 Ω terminals 1+, 3 Available voltage ≥ 16 V at 20 mA ; ≥ 20 V at 4 mA , terminals 1+, 3 Output Connection side control side Connection terminals 7+, 8-, 9- (sink) terminals 7-, 8+, 9+ (source) see additional information Load 0 ... 800 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 terminal 9 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: bandwidth with 0.5 Vpp signal 0 ... 7.5 kHz (-3 dB) control side into the field side: bandwidth with 0.5 Vpp 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 Indicators/settings Display elements LED Labeling space for labeling at the front Directive conformity Electromagnetic compatibility Directive 2014/30/EU EN 61326-1:2013 (industrial locations)