Endress+Hauser Liquiline System CA80CR, Руководство по эксплуатации

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Liquiline System CA80CR Operation
Hauser
117
Source of data Options
• Sensors
• Current inputs
• Fieldbus signals
• Binary inputs
• Mathematical functions
• None
Factory setting
None
Specify the input or output which should be the source of
data for the disturbance variable.
Measured value Options
• None
• Depends on theSource of
data
Factory setting
None
Specify the measured value that should be your distur-
bance variable.
The measured value you can select depends on the
option selected under "Source of data".
Zp Range of adjustment depen-
ding on the selection of the
measured value
Proportional band -->
Z0 Zero point
Parameters
The Liquiline PID controller has been implemented in the serial structural form, i.e. it has the following parameters:
• Integral action time T
n
• Derivative action time T
v
• Proportional band X
p
For Setup Level="Advanced" you can also configure the following:
• Time constant T
wu
• Time constant Alpha
• Width of the neutral zone X
n
• Width of the hysteresis range of the neutral zone X
hyst
• Cycle time of the controller
Tn 0.0 to 9999.0 s
Factory setting
0.0 s
The integral action time specifies the effect of the
I-value
If Tn > 0, then the following holds true:
Clock < Twu < 0.5(Tn + Tv)
The integral action time is the time needed in a step-function response to achieve a change in the manipulated variable
- as a result of the I effect - which has the same magnitude as the P-value.
e = control deviation, e=w-x (setpoint controlled variable)
Path: Menu/Setup/Additional functions/Controller 1 or Controller 2
Function Options Info