Siemens Synco 200 - Control strategies and setpoints for controller 1, basic type A

9.2 Control strategies and setpoints for
controller 1, basic type A
9.2.1 Selecting the control strategy
Controller 1 in basic type A is used for temperature control.
Control strategies
controller 1,
basic type A
Different control strategies are available.
The following table shows the dependencies:
Control strategy
Explanations given in …
Required
input
identifiers
Footnote 1
Connection
inputs –
control loop
Footnote 2
Setting value
STRATGY in
CTLOOP 1
Room temperature control
Subsection 9.2.6
Footnote 3
ROOM None ---
(No impact)
Supply air temperature
control
Subsection 9.2.8
Footnote 3
SAT None ---
(No impact)
Changeover between room-
supply air temperature
cascade control and supply
air temperature control via a
digital input
Subsection 9.2.7
Footnotes 4, 5, 6
SAT
ROOM
DIG
DIG ->
CAS/CON
CAS
Room-supply air temperature
cascade control
Subsection 9.2.7
Footnotes 5, 6
SAT
ROOM
None CAS
Room temperature control
with supply air temperature
limitation
Subsection 9.2.9
Footnotes 5, 6
SAT
ROOM
None LIM
1 Any input Xx of the input block can be used.
Selection of an input identifier label requires that the respective temperature is indeed acquired
(e.g. ROOM: (Room temperature must be available)
2 The "connection" is made as a setting value in controller 1 block
3 Setting value STRATGY has no impact in connection with room temperature and supply air
temperature control.In these cases, the setting value is not evaluated
4 CAS/CON facilitates changeover from cascade control in the summer to supply air temperature
control in the winter (when heating is ON) via a digital input
5 If both input identifiers SAT and ROOM are available, the STANDBY setting decides whether
room-supply air temperature cascade control or room temperature control with supply air
temperature limitation is performed
6 If selection of a control strategy is required and none is selected ("---")
- applies to room-supply air temperature cascade control and room temperature control with
supply air temperature limitation – control strategy “Supply air temperature control”
is automatically activated
Explanations
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Siemens Universal Controllers RLU2… CE1P3101en
Building Technologies Controller (CTLOOP x) 29.08.2008