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Siemens Standard application AHU CE1P3977en_02
Building Technologies Functions 01.02.2010
Main Index > Unit > Humidity control > Hum setpoints > Sply hum dev alarm
Main Index > Unit > Humidity control > Hum setpoints > Room hum dev alarm
Parameter Range Function
Alarm – Passive
– Active
Alarm state. Go to settings page for digital alarms. Set all
control-related settings such as alarm delay (default 3600
s).
Min limit 0...99.0 [%rH] oder [g/kg] An alarm is triggered below this humidity.
Maximum deviation 0...99.0 [%rH] oder [g/kg] Maximum allowable deviation between setpoint and ac-
tual value.
Start up delay 0…36000 [s] The function is enabled after this period after a start.
Monitoring is switched off when the humidity sensor fails.
5.11.4 Supply maximum controller
Main Index > Configuration > Configuration 1 > Supply hum sensor = Yes
Main Index > Configuration > Configuration 2 > Hum control mode = Room
Limit supply air humidity for room control only to prevent discharge humidity that is
too high.
Main Index > Unit > Humidity control > Max controller sply
Parameter Range Function
Max controller
sply
0...100 [%rH] oder [g/kg] Actual value for the maximum limit controller. Go to controller
settings page. This is where you enter all control-related set-
tings.
Max setpoint 0.0...100 [%rH] oder [g/kg] Highest allowable supply air humidity for a room humidity
control. Limited control of the humidity controller occurs for
supply air humidity > Max.
5.11.5 Humidification controller
Main Index > Configuration > Configuration 1 > Humidity control = Hum oder
Dehum+Hum
Humidification controller
Main Index > Unit > Humidity control > Humidification
Parameter Range Function
Controller 0…100 [%] Present value for the controller. Go to page with all controller settings.
Output signal 0…100 [%] Present value for output. Go to page with all analog output settings.
Command – Off
– On
Present state of humidifier. Go to page with all digital output settings.
Feedback – Ok
– No Fdbk
Condition:
Master Index > Configuration > Configuration 2 > Humidifier fdbk <> No.
Present value of the feedback. Go to page with all digital input settings. For
example, you can set the time for jitter protection (Default: 5 s).
Pump. – Off
– On
Current pump status. Go to humidifier pump page.
Start up delay 0…36000 [s] Defines the period after a humidifier start without feedback before a feed-
Parameter
Note
Prerequisite
Function
Parameterization
Prerequisite
Function
Parameter
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 87
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