Sartorius DCU 3, Operator'S Handbook Manual

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Operators Handbook DCU3 – System
6., Main function „Control Loops“
BAEDCU3 - Rev. 4.6 - 0504 6 - 16
6.11 pO
2
- Cascade Controller with 4 Servo Controllers
This cascade controller operates in the same manner as the pO2 cascade controller with 3 servo con-
trollers. The only difference is the fact, that 4 of the possible 4 servo controllers can be controlled.
6.11.1 Operating Display pO
2
- Cascade Controller with 4 Servo Controllers
For a description of the tags, the physical units or entries, the displayed value or function
and of the required inputs see the table in section
6.3, Controller Operation in General.
Additional functions of this Operating Display are the following:
Tag Entry Displayed value or function, required input
CASCADE Input of servo controller for sequential cascade control
STIRR
−
stirrer speed controller
AIRFL
−
Flow controller for air (if installed)
O2FL
−
Flow controller for O2
PRESS
−
Pressure controller
OUT [Controller]
%
Display of the controller output for the active servo controller dur-
ing sequential cascade control, with actual controller output