Analog Input Inp2 (External Setpoint, Setpoint Shifting); Analog Input Inp3 (Outside Temperature); Binary Input D1 - Siemens RWF55.5 User Manual

Resistance
thermometer
Standard signals
Resistance
thermometer
Building Technologies Division
Infrastructure & Cities Sector

14.1.2 Analog input InP2 (external setpoint, setpoint shifting)

Resistance measurement 0...1 k or standard signals without linearization.
Sampling time
Resistance (2-wire circuit)
Measuring range
Voltage DC 0...5 V
Input resistance R >2 M
E
Voltage DC 0...10 V
Input resistance R >2 M
E
Voltage DC 1...5 V
Input resistance R >2 M
E
Current 0...20 mA
Voltage drop 2 V
Current 4...20 mA
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
Type Measuring
range
Pt1000 DIN EN 60751 -200...+850 °C
(-328...+1562 °F)
LG-Ni1000 -50...+160 °C
(-58...+320 °F)
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
‐
User Manual RWF55...
14 Technical data
750 ms
0...1 k linear
0.05%
50 ppm/K
Measuring Impact of ambient
a
temperature
accuracy
0.2%
200 ppm/K
0.1%
100 ppm/K
0.2%
200 ppm/K
0.1%
100 ppm/K
0.1%
100 ppm/K
6 s
Measuring Impact of ambient
a
temperature
accuracy
0.05%
50 ppm/K
0.05%
50 ppm/K
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CC1U7867en
05.11.2013