Sartorius DCU 3 - Po 2 - Cascade Controller with 4 Servo Controllers

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