Technical data

Modulating control: 3-position or PWM
The diagrams below show the control sequence of modulating PI control.
Heating mode with manual selection (P01 = 2)
Cooling mode with manual selection P01 = 2)
Y [%]
100
0
w
3181D1124b
T[°C]
XpH
YHYE
w
D
½ SDH ½ SDH
3181D105b
Y [%]
100
0
w
T[°C]
YC
XpC
Heating and cooling mode (P01 = 4)
Y [%]
100
0
w
3181D114b
T[°C]
YC
XpH
YH
XpC
½
x
dz
½
x
dz
YE
w
D
½ SDH
½ SDH
T[°C] Room temperature
w Room temperature setpoint
YE Control command "El heater"
(only On/Off)
YH Control command "Valve" (heating)
(On/Off or PWM, not 3-position)
YC Control command "Valve" (cooling)
(On/Off, PWM or 3-position)
XpH Proportional band "Heating" (P30)
XpC Proportional band "Cooling" (P31)
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".
• YH can only be On/Off or PWM
• YC can be On/Off, PWM or 3-position
• YE can only be On/Off
Note:
Notes:
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Siemens RDG100KN, RDG160KN Basic documentation CE1P3191en
Building Technologies Functions 2014-05-23