Siemens AVS37.294 - Page 153

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Siemens Switzerland Ltd
User manual RVS61.843 CE1U2355en_02
HVAC Products 6 The settings in detail 23. November 2007
TVLw
[°C]
Hx [V]
U
2
=10VU
1
=0V
F
1
=0
0.15 V
F
2
=130
TVLw Flow temperature setpoint
Hx Voltage value at Hx
U1 Voltage value 1
F1 Function value 1
U2 Voltage value 2
F2 Function value 2
If the input signal drops below the limit value of 0.15 V, the heat request is invalid and
therefore inactive.
• Example of pressure measurement 10V
P [bar]
U
2
=3.5V
4bar
0
F2=4
U
1
=0.5V
F
1
=0
Hx [V]
B Pressure value
Hx Voltage value at Hx
U1 Voltage value 1
F1 Function value 1
U2 Voltage value 2
F2 Function value 2
If the measured value lies below 0.15 V, it is regarded invalid.
• Example of relative room humidity 10V
U
2
=10VU1=0V
F
1
=0
F
2
=100
0.15V
rF [%]
Hx [V]
rF Relative humidity
Hx Voltage value at Hx
U1 Voltage value 1
F1 Function value 1
U2 Voltage value 2
F2 Function value 2
If the measured value lies below 0.15 V, it is regarded invalid.