Operation
Liquiline System CA80SI
106
Hauser
Menu/Setup/Additional functions/Controller 1 ... 2
Function
Options
Info
XHyst
0.0 to 99.9 %
Factory setting
0.0 %
Width of the hysteresis range of the neutral
zone, relative component of x
n
x
n
x
hyst
e = w-x
y
The graphic illustrates the manipulated variable (with a pure P
‐
controller) over the control deviation e (set
point minus controlled variable). Very low control deviations are set to zero. Control deviations > x
n
are
processed "in the normal way". Via x
hyst
it is possible to configure a hysteresis to suppress oscillations at the
edges.
Clock
0.333 to 100.000 s
Factory setting
1.000 s
Expert setting
Only change the clock time of the controller if
you know exactly what you are doing.
Clock
<
Twu
< 0.5(
Tn
+
Tv
)
Max y change rate
0.00 to 1.00
Factory setting
0.40
Limits the change of the output variable
A value of 0.5 permits a maximum manipulated
variable change of 50 % within one second.
Exception behavior
Hold=measured value is no longer reliable
Manipulated Variable
Selection
• Freeze
• Fixed value
Factory setting
Freeze
How should the controller react to a measured
value that is no longer reliable?
Freeze
The manipulated variable is frozen at the current
value
Fixed value
Manipulated variable is set to 0 (no dosing)
State
Selection
• Freeze
• Reset
Factory setting
Freeze
Internal controller status
Freeze
No change
Reset
After a hold, the control system starts from
scratch, and settling time takes place again.
Hold as exception
Selection
• All
• None
Factory setting
All
‣
Select: Should the hold trigger the previously
selected exception behaviour, or should it be
ignored?
Outputs
Goes to the menu
Outputs
Controller assignment view
Shows an overview of the inputs and outputs
used
10.7.4 Cleaning programs for sensors
L
CAUTION
Programs not switched off during maintenance activities.
Risk of injury due to medium or cleaning agent!
‣
Quit any programs that are active.
‣
Switch to the service mode.
‣
If testing the cleaning function while cleaning is in progress, wear protective clothing,
goggles and gloves or take other suitable measures to protect yourself.
Содержание Liquiline CA80SI
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