Siemens RDF301 Basic Documentation page 34

ON/OFF control
Note:
Setting the sequence and the control outputs
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Siemens
Building Technologies
The diagrams below show the control sequence for 2-position control.
Heating mode with manual selection
(P01 = 2)
Y
Y1
1
w
0
½ SDH ½ SDH
Heating and cooling mode (P01 = 04)
Y
Y1
½ x ½ x
dz
dz
1
w
0
½ SDC
½ SDH ½ SDH
The diagrams only show the PI thermostat's proportional part.
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
RDF301, RDF301.50 Basic documentation
Functions
Cooling mode with manual selection
(P01 = 2)
Y
1
0
T[°C]
T[°C] Room temperature
Y2
w
Y1
Y2
SDH Switching differential "Heating" (P30)
T[°C]
½ SDC
SDC Switching differential "Cooling" (P31)
X
dz
Y2
w
½ SDC
½ SDC
Room temperature setpoint
Control command "Valve" or "Comp." (H)
Control command "Valve" or "Comp." (C)
Dead zone (P33)
T[°C]
CE1P3171en
22 Jun 2010