User Manual

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Siemens Room Temperature Controllers CE1N3048en
Building Technologies 2017-11-14
The proportional band or the switching differential can be 1 or 4 K in heating mode and
0.5 or 2 K in cooling mode (selectable). The integration time cannot be adjusted and is
10 minutes. The operating sequence “Heating – cooling or heating – heating” can be
selected with DIP switch no. 7.
Y1[%]
100
0
T [癈 ]
100
Y2 [%]
Xdz
SDH SDC
XpH
XpK
W
2 P.
3041D01
T Room temperature
Y1, Y2 output percentage
W Room temperature setpoint
Xdz Dead band
XpH Proportional band heating
XpK Proportional band cooling
SDH Switching differential for heating
SDC Switching differential for cooling
2 P. 2-position outputs
T [癈 ]
Y2 [%]
100
2 1
Y1[%]
XpH2 XpH1
100
3041D02
0
W
T Room temperature
Y1 Heating sequence output 1
Y2 Heating sequence output 2
W Room temperature setpoint
XpH1 Proportional band heating 1
XpH2 Proportional band heating 2
When two heating sequences are selected, the two outputs cannot be switched ON at
the same time. Two outputs are switched ON separately with at least 10 seconds delay.
In case of set-point change, the two heaters are allowed to switch OFF together.
2 P.
T [癈 ]
Y2
100
2
1
Y1
100
SDH SDH
0
3041D03
[%]
[%]
W
T Room temperature
Y1 Heating sequence output 1
Y2 Heating sequence output 2
W Room temperature setpoint
SDH Switching differential for heating
2 P. 2-position outputs
If actuating signal “Pulse width modulation“ (PWM) is selected with DIP switches no. 5
and no. 6, the output is activated and deactivated for a certain period of time, propor-
tional to the calculated manipulated variable and following an interval.
The interval of the PWM actuating signal can be selected as follows:
Heating and cooling (DIP switch 7 on position ON)
Y1 interval can be selected with DIP switch 8 and is either 240 s or 90 s.
Y2 interval is 240 s and cannot be changed.
Heating 2-stage (DIP switch 7 on position OFF)
Y1 interval is 240 s and cannot be changed.
Y2 interval can be selected with DIP switch 8 and is either 240 s or 90 s.
Output Y1 (heating): when used in connection with thermic actuators, the selected in-
terval should be 240 seconds. When using electric heaters, it should be 90 seconds.
When used in connection with electric valve actuators, DIP switches no. 5 and no. 6
must be set to ON for two-position control.
PWM actuating signals may never be used for driving electric actuators!
Function diagram
“Heating-cooling”
Function diagram
“Heating-heating”
with PWM output
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Function diagram
“Heating-heating”
with 2 position output
Pulse width modula-
tion
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Note
Caution