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Siemens
Standard application AHU
CE1P3977en_02
Building Technologies
Configuration
01.02.2010
Parameter
Range
Function
Cooling 2 pump
No
No additional water cooling pump.
Yes
Water cooling pump without pump kick. Digital output for the pump.
Yes+Kick
Water cooling pump with pump kick. A digital output for pump and ac-
tivation of pump kick.
Pump kick: Pump is switched on for a short period after idling for a
longer period. This prevents lock up.
Cooling 2 pump alm No
Pump without alarm or feedback.
Alarm
Pump with alarm. Digital input for pump alarm. Logical 1 = alarm, im-
mediately shuts down the pump.
Fdbk
Pump with feedback. Digital input for feedback (logical 1 = Pump running).
Both
Pump with alarm and feedback. Two digital inputs for pump alarm and
feedback.
Cooling 2 Dx alarm No
Additional direct expansion evaporator without alarm or feedback.
Alarm
Direct expansion evaporator with alarm. Digital input for pump alarm.
Logical 1 = alarm, immediately shuts down the pump.
Fdbk
Direct expansion evaporator with feedback. Digital input for feedback
is enabled (logical 1 = Pump running).
Both
Direct expansion evaporator with alarm and feedback. Two digital in-
puts for alarm and feedback.
Cooling 2 control
Positioning of additional cooling register.
StandAlone
Cooling register not integrated in sequence. An additional analog input for
one control sensor (if not already enabled for Heating 2 or El Heating 2).
InSequence
e.g. integrated as second cooling register in the sequence.
Fire damper fdbk
Fire damper feedback.
Closed
Only one feedback for close. Digital input.
Clsd+Opnd
Two separate feedbacks for open and close. Two digital inputs.
Combined
Two feedbacks for open and close, but only one signal. The syntax
must be correct 1->0->1 => Close-> Movement -> Open. Digital input.
Auxiliary input
No
No auxiliary input.
Input
An additional digital input for display only.
Alm
An additional digital input with alarm.
Inp+Alm
Two additional digital inputs. One for display and one with alarm.
Aux tmp sensor
No
No additional analog input.
Yes
Additional analog input to connect a temperature for display.
Aux TSP output
No
No additional digital output.
Yes
An auxiliary digital output controller by its own time switch program.
Aux A outp fan
No
No additional analog output.
Yes
Auxiliary analog output that provides a 0-10 V signal depending on the
present fan step.
Aux op mode
indicat
No
No additional digital output.
Yes
An additional digital output, switched dependent on present operating
mode (e.g. Comfort or Off).
Configuration 2
This parameters enable the plant after successful parameterization.
Enable occurs when Configuration 1, Configuration 2 and Configura-
tion IOs are completed, i.e. when each has the value "done".
NotDone
Plant locked against switching on.
Done
The plant is unlocked after complete parameterization (Configuration
2 and Configuration I/Os also have a value "done"), i.e. it can be
switched on.
Needed Required !! Passive
Execute
Reset required after successful parameterization in Configuration 2.
Assumes the appropriate presettings for Configuration I/Os.
After reset, value automatically goes from execute to passive.
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 166