Siemens RDG20 KN Series Basic Documentation page 82

Functions
4
Control sequences
Modulating control:
3-position, PWM or
DC 0...10 V
Note
Note
82 | 180
The diagrams below show the control sequence for modulating PI control.
Heating mode
T[° C] Room temperature
w Room temperature setpoint
YHC Control command "Valve" or
"Compressor"
YR Control command "Radiator"
The diagrams only show the PI thermostat's proportional part.
For setting sequence and control outputs, see Application overview [➙ 42],
Sequence overview (setting via P001) [➙ 75] and Control outputs [➙ 99].
Parameter P256 (RDG26..KN) sets the heating flow limitation when using a PICV.
See Additional functions [➙ 47].
Cooling mode
XpH Proportional band "Heating"
(P050)
XpC Proportional band "Cooling"
(P052)
XpR Proportional band "Radiator"
(P054)
X Dead zone (P055)
dz
w Setpoint differential (P056)
D
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