Technical data

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Siemens RDG100KN Basic documentation CE1P3191en
Building Technologies Functions 22 Jun 2010
The diagrams below show the control sequence for 2-position control.
Heating mode with manual selection
(P01 = 2)
Cooling mode with manual selection
(P01 = 2)
½ SDH
1
0
½ SDH
w
Y
3076D01
T[°C]
Y1
Y
½ SDC
1
0
½ SDC
w
3076D13
T[°C]
Y2
Heating and cooling mode (P01 = 04)
T[°C] Room temperature
w Room temperature setpoint
Y1 Control command “Valve” (H)
Y2 Control command “Valve” (C)
SDH Switching differential “Heating” (P30)
SDC Switching differential “Cooling” (P31)
Y
½ SDC
1
0
½ SDC
w
3076D11
T[°C]
Y2
½ SDH
½ SDH
Y1
½
x
dz
½
x
dz
X
dz
Dead zone (P33)
Modulating control: 3-position, PWM or DC 0…10 V
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)
XpH
100
0
w
Y [%]
3076D03
T[°C]
Y1
XpC
Y [%]
100
0
w
3076D14
T[°C]
Y2
Heating and cooling mode (P01 = 04)
T[°C] Room temperature
w Room temperature setpoint
Y1 Control command “Valve” heating
Y2 Control command “Valve” cooling
XpH Proportional band “Heating” (P30)
XpC Proportional band “Cooling” (P31)
Y [%]
100
0
w
3076D12
T[°C]
Y2
XpH
Y1
XpC
½ x
dz
½
x
dz
X
dz
Dead zone (P33)
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".
ON/OFF c
ontrol
Note: