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Siemens Standard application AHU CE1P3977en_02
Building Technologies Detail pages: Controller 01.02.2010
Parameter Range Function
Invert outpt/funct
− Passive
− Active
Inverts control action of the controller and the
output signal in switched off state:
− Output signal = 0 %.
− Output signal = 100 %.
Function: See relationship between gain and
invert under special settings.
High limit Maximum limit control for the controller.
Low limit Minimum limit control for the controller.
Special settings Go to Special settings page (at access levels 4
and 2 only).
7.1.2 Special settings
– Read: Levels 4 and 2.
– Write: Levels 4 and 2.
Parameter Range Function
Gain -1000...1000 Amplification factor (KP). Set control action with In-
vert output/funct (heating or cooling).
Function: See Relationship gain and invert.
Int action time 0….18000
[s] Integral action time (Tn).
Derivative act time 0….18000
[s] Derivative action time (Td).
Out of service − Passive
− Active
Out of service: Controller is taken out of the se-
quence and the control output is set to 0.
7.2 Cascade controller
Access level
Parameter
Relationship gain and
invert
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 111
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