Siemens Synco 700 RMZ785 - Makeup and Mode of Operation of the Controller

11.2 Makeup and mode of operation of the
controller
PID control controls the main controlled variable according to the defined setpoint.
The controller can contain max 2 sequences in the following combinations:
 One sequence: Sequence 1 or Sequence 4.
 Two sequences: Sequence 1 and 4.
Seq. 1 Seq. 4
Setpoint
low
Functio
n diagram
The "Setpoint
low" (heating setpoint) i
s assigned to sequence 1.
Its output signal acts reverse to the load (inputs variable).
Example for heating: Outside temperature  , sequence 1 .
The "Setpoint high" (cooling setpoint) is assigned to sequence 4.
Its output signal acts reverse to the load (input variable).
Example for cooling: Outside temperature  , sequence 4 .
Functions "Heat demand" (see Section 10) and "Refrigeration demand" (see
Section 10.2) process the controller's output signal. The settings are described in
the corre
spo
nding chapters.
Note
167 / 216
Siemens Switching and monitoring device RMS705B CE1P3124en
Building Technologies Universal controller 01.04.2010