Siemens RWF55.50A9 - Analog Input Inp2 (External Setpoint, Setpoint Shifting); Analog Input Inp3 (Outside Temperature); Binary Input D1

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Building Technologies Division User Manual RWF55... CC1U7867en
Infrastructure & Cities Sector 14 Technical data 05.11.2013
14.1.2 Analog input InP2 (external setpoint, setpoint shifting)
Resistance measurement 0...1 k or standard signals without linearization.
Sampling time 750 ms
Resistance (2-wire circuit) 0...1 k linear
0.05%
50 ppm/K
Measuring range Measuring
accuracy
a
Impact of ambient
temperature
Voltage DC 0...5 V 0.2% 200 ppm/K
Input resistance RE >2 M

Voltage DC 0...10 V 0.1% 100 ppm/K
Input resistance RE >2 M
Voltage DC 1...5 V 0.2% 200 ppm/K
Input resistance RE >2 M
Current 0...20 mA 0.1% 100 ppm/K
Voltage drop 2 V
Current 4...20 mA 0.1% 100 ppm/K
Voltage drop 2 V
a
Accuracies relate to the maximum measuring range.
14.1.3 Analog input InP3 (outside temperature)
For resistance thermometers in 2-wire circuit, with fixed filter time constant.
Sampling time 6 s
Type Measuring
range
Measuring
accuracy
a
Impact of ambient
temperature
Pt1000 DIN EN 60751 -200...+850 °C
(-328...+1562 °F)
0.05% 50 ppm/K
LG-Ni1000 -50...+160 °C
(-58...+320 °F)
0.05% 50 ppm/K
a
Accuracies relate to the maximum measuring range.
14.1.4 Binary input D1
Potentialfree contact for the following functions, depending on the configuration:
‐ No function
‐ Setpoint shifting
‐ Setpoint changeover
‐ Alarm input
Resistance
thermometer
Standard signals
Resistance
thermometer