Technical data

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Siemens RDG100KN Basic documentation CE1P3191en
Building Technologies Functions 22 Jun 2010
ON/OFF control
The diagrams below show the control sequence for 2-position.
Heating mode
(automatic changeover = heating or heating only)
Cooling mode
(man. / auto. changeover = cooling or cooling only)
Y
½ SDH
1
0
½ SDH
w
3076D06
T[°C]
Y1
½ SDH
½ SDH
YE
w
D
Y
½ SDC
1
0
½ SDC
w
3076D05
T[°C]
Y1
½ SDH
½ SDH
YE
x
dz
Heating mode with manual changeover (P01 = 2)
(manual changeover = heating)
T[°C] Room temperature
W Room temperature setpoint
Y1 Control command “Valve”
YE Control command “Electric heater”
SDH Switching differential “Heating” (P30)
SDC Switching differential “Cooling” (P31)
X
dz
Dead zone (P33)
½ SDH
1
0
½ SDH
w
Y
3076D07
T[°C]
YE
w
D
Setpoint differential (P34)
Modulating control: 3-position, or PWM
The diagrams below show the control sequence for modulating control.
Heating mode
(automatic changeover = heating or heating only)
Cooling mode
(man. /auto. changeover = cooling or cooling only)
Y [%]
100
0
w
3076D09
T[°C]
Y1
XpH
YE
w
D
XpH
Y [%]
100
0
w
3076D08
T[°C]
Y1
XpH
YE
x
dz
XpC
Heating mode with manual changeover (P01 = 2)
(manual changeover = heating)
T[°C] Room temperature
W Room temperature setpoint
Y1 Control command “Valve”
YE Control command “Electric heater”
XpH Proportional band “Heating” (P30)
XpC Proportional band “Cooling” (P31)
X
dz
Dead zone (P33)
XpH
100
0
w
Y [%]
3076D10
T[°C]
YE
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".
Control se
quence
ON/OFF output
Control sequence
modulating output
Note: