Endress+Hauser Liquiline CM442R, Operating Instructions Manual

Page: 92 / 172

Operation Liquiline CM442R/CM444R/CM448R
92
Hauser
Configuration
Make the following decisions when configuring a controller:
1. What type of process can your process be assigned to?
→ Process type
2. Should it be possible to influence the measured variable (controlled variable) in one
direction or in both directions?
One-sided or two-sided controller, → Controller type
3. What should be the controlled variable (sensor, measured value)? → Controlled variable
4. Do you have a disturbance variable that should be active at the controller output?
→ Disturbance variable
5. Define the parameters for the controller:
– Set point, → Setpoint
– Neutral zone, → Xn
– Proportional band, → Xp
– Integral action time (I-value), → Tn
– Derivative action time (D-value), → Tv
6. What should the controller do in the event of a hold (measured error, sensor replacement,
cleaning etc.)?
– Pause or continue with dosing?
– At the end of a hold, continue or restart the control loop (affects I-value)?
7. How should the actuator be triggered?
– Assign "U" to the output for an actuator which can increase the measured value.
– Assign "Unipolar-" to the output for an actuator which can decrease the measured value.
– Select "Bipolar" if you want to output the manipulated variable via one current output
only (split range).
8. Configure the outputs and switch on the controller.
Path: Menu/Setup/Additional functions/Controller 1 or Controller 2
Function Options Info
Control Options
• Off
• Automatic
• Manual mode
Factory setting
Off
First configure the controller and leave the switch at "Off"
during this time.
Once you have made all the settings, you can assign the
controller to an output and switch it on.
Manual mode
Y -100 to 100 %
Factory setting
0 %
Specify the manipulated variable that should be output
in manual mode.
Y Actual output Read only Manipulated variable actually output.
Name Free text Give the controller a name so you can identify it later on.