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Siemens Standard application AHU CE1P3977en_02
Building Technologies Functions 01.02.2010
Parameter Range Function
Damper --- Jump to damper page to parameterize the outside
and exhaust air damper.
Fire damper – On
– Off
Current fire damper status. Jump to fire damper
page to parameterize the fire damper.
5.3.2 Supply / Exhaust damper
Air and exhaust air dampers are enabled and preconfigured in configuration 1, con-
figuration 2 and configuration I/Os.
Per settings outside and exhaust air damper open at plant start and close at plant
stop. Damper opening times can be defined separately. A common default period
can be set if no damper feedback exists. The damper command can still be kept at
pending for a feedback alarm.
Only the output for the outside air damper is enabled if two dampers are enabled
as combined. This is also true for triggering feedback alarms for the exhaust air
damper, if a separate feedback per damper is enabled.
Outside damper is forced by the supply fan. Exhaust damper is forced by the
exhaust fan. If combined damper is selected, then the output for ouside damper is
forced by both supply fan or exhaust fan. Take care if for example Firemode
RunExh is used.
Main Index > Unit > Damper Control > Damper
Parameter Range Function
Outside air cmd
Off
On
Current state of outside air damper command. Go
to page with all digital output settings.
Outside air fdbk
No
Yes
Active feedback as to whether the damper is open.
Go to page with all digital input settings. For exam-
ple, you can set the time for jitter protection (De-
fault: 5 s).
Outs offby fdbk alm
No
Yes
Determines, in the event of a feedback fault,
whether a damper command is still pending or
whether to switch off the command.
StrtUpDly outs fdbk
0…36000 [s] Defines the period after an open command without
feedback before a feedback alarm is triggered. Jit-
ter time is enabled exclusively if the feedback is
pending after this period.
Extract air cmd
Off
On
Current state of exhaust air damper command.
Go to page with all digital output settings.
Extract air fdbk
No
Yes
Active feedback as to whether the damper is open.
Go to page with all digital input settings. For exam-
ple, you can set the time for jitter protection (De-
fault: 5 s).
Extr offby fdbk alm
No
Yes
Determines, in the event of a feedback fault,
whether a damper command is still pending or
whether to switch off the command.
StrtUpDly Extr fdbk
0…36000 [s] Defines the period after an open command without
feedback before a feedback alarm is triggered. Jit-
ter time is enabled exclusively if the feedback is
pending after this period.
Opening time 0…36000 [s] Estimates damper opening time for both dampers, if
Prerequisite
Function
Parameter
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 47
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