West Control Solutions KS98-1 - Manual (Page 256)

III-16.11 Controller applications:
The following chapter describes the common characteristics of controller block connection, which are independent of
the CONTR and PIDMA controller kernel, such as and correcting variable switchover and limitingas well as process va -
lue pre-processing.
Controller front-panel operation
Controls on the controller page
Multilingual operation is not provided for the controller operating pages. Texts such as title and unit should be langua -
ge-independent, if necessary.
Ü Page title (block name)
¡ source (Wint, Wext, W2)
¢ Physical unit
£ Bargraph of correcting variable Y or XW
or Xeff
¤ Entry into the self-tuning page
¥ Effective process value
> Controller setpoint
y Value of correcting variable Y or XW or
Xeff
x Self-tuning/command entry status
c Self-tuning result heating
– Process characteristics heating
— Self-tuning result cooling
˜ Process characteristics cooling
+ See also:
Chapter “Operation” on page
Chapter “Operating pages” on page
Chapter “Controller” on page
Switchover disabling
In many applications, switchover via the front panel should be not possible.
Unwanted, accidental process interventions should be prevented by all means.
For these cases, switching over via front panel operation may be disabled.
This is done by parameter W Block, which is intended for blocking individual or
all switchover operations purposefully.
In default setting, all switchover operations are blocked and the switchover
field for front-panel operation cannot be selected.
+ Switchover to Wext is blocked by configuration Wfunc = .
+ When W < > W2 switchover is blocked and Wext < > Wint switchover is not
possible ( control), the field is skipped when selecting.
9499-040-82711
III-256 Controller applications:
Ь
*
Ц
д
#
<
>
y
<
y
x
>
>
c
v
b
n
Fig. 71