Technical data

Modulating control: 3-position, PWM or DC 0...10 V
The diagrams below show the control sequence for modulating PI control.
Heating mode Cooling mode
Y [%]
100
0
w
3191D122_01
T[°C]
YR
XpH
YHC
w
D
XpR
Y [%]
100
0
w
3191D123_01
T[°C]
YHC
XpR
YR
x
dz
XpC
T[°C] Room temperature
XpH Proportional band "Heating" (P30)
W Room temperature setpoint
XpC Proportional band "Cooling" (P31)
YHC Control command "Valve"
XpR Proportional band "Radiator" (P32)
YR Control command "Radiator"
X
dz
Dead zone (P33)
w
D
Setpoint differential (P34)
The diagrams only show the PI thermostat’s proportional part.
Setting the sequence and the control outputs
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
Note:
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Siemens RDG100KN, RDG160KN Basic documentation CE1P3191en
Building Technologies Functions 2014-05-23