Siemens Climatix Series, Basis Document

Page: 41 / 244

41 / 244
Siemens Standard application AHU CE1P3977en_02
Building Technologies Functions 01.02.2010
5.2.3 Time switch program
A time switch catalog is enabled:
Main Index > Configuration > Configuration 1 > TSP function <> No
The plant is controlled via the time switch program.
Main Index > Unit > Operating mode > Time switch program
Parameter Range Function
Schedule
– Off
– Stage1…Stage3
Present plant operating mode from the time switch
catalog for Tsp function <= Steps. Goes to details
page to parameterize time switch catalog.
Schedule – Off
– Eco St1…Eco St3
– Comf St1…Comf St3
Present plant operating mode from the time switch
catalog for Tsp function = Steps+Tmp. Goes to de-
tails page to parameterize time switch catalog.
Calendar exception – Passive
– Active
Calendar for vacation and holidays. The entry for
the exception day of the scheduler is enabled when
this entry is enabled. Goes to details page to pa-
rameterize time switch catalog.
Calendar fix off – Passive
– Active
Additional calendar to switch off the plant. Goes to
details page to parameterize second calendar.
5.2.4 External Control (parameterize plant switch)
The external plant switch is enabled:
Main Index > Configuration > Configuration 1 > Ext control input <> None
Plant operation via external plant switch, presence detectors or buttons (Ext control
input 1, Ext control input 2). The plant can be switched to auto mode, a set stage or
to off depending on parameterization and configuration. The command defaulted
here is only enabled when no higher priority command is not active, e.g. Manual
Operation is enabled via HMI.
Main Index > Unit > Operating mode > External control
Parameter Range Function
Actual mode
– Auto
– Off
– Stage 1
– Stage 2
– Stage 3
Actual plant operating mode as triggered by the plant switch.
– Auto mode: Time switch catalog, night cooling, etc., can
switch on the plant.
– Plant off.
– Plant operating in stage 1 (using setpoint stage 1 for analog
controlled plants).
– Plant operating in stage 2 (using setpoint stage 2 for analog
controlled plants).
– Plant operating in stage 3 (using setpoint stage 3 for analog
controlled plants).
Prerequisite
Function
Parameter
Prerequisite
Function
Parameter
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 41