Endress+Hauser Liquiline System CA80CR, Руководство по эксплуатации

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Liquiline System CA80CR Operation
Hauser
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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:
– Setpoint, -->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 wish 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 ... 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 Customized text Give the controller a name so you can identify it later on.
Controller Enable Options
• None
• Binary inputs
• Limit switches
• Fieldbus variables
Factory setting
None
In connection with the DIO module, you can select a
binary input signal, e.g. from an inductive proximity
switch, as a source for enabling the controller.