X.control - Parameterization Of The Positioner - Burkert 8792 Operating Instructions Manual

25.2.8 X.CONTROL – Parameterization of the positioner
This function can be used to re-adjust the parameters of the positioner.
The re-adjustment should only be made if it is required for the application.
The parameters for X.CONTROL are automatically set with the exception of DBND (dead band) when speci-
fying the basic settings by running X.TUNE.
If the setting for DBND (dead band depending on the friction behavior of the actuating drive) is also
to be automatically determined when X.TUNE is running, X.CONTROL must be activated by incorpo-
rating it into the main menu (MAIN).
When X.TUNE is running, all previously re-adjusted values are overwritten (except the X.TUNE
function was manually parameterized).
DBND Insensitivity range (dead band)
Amplification factor of the proportional portion (for aerating the valve)
KXopn
Amplification factor of the proportional portion (for bleeding the valve)
KXcls
KDopn Amplification factor of the differential portion (for aerating the valve)
KDcls Amplification factor of the differential portion (for bleeding the valve)
YBfric Friction correction (for aerating the valve)
YEfric Friction correction (for bleeding the valve)
X.CONTROL
* If the submenu is left by pressing the
Fig. 67: Operating structure X.CONTROL
DBND I nsensitivity range (dead zone) of the positioner
Input the dead zone as %, relating to the scaled stroke range;
i.e.
mechanical stroke range" ).
This function causes the controller to respond only from a specific control difference; as a result the
solenoid valves in the Type 8792/8793 and the pneumatic actuator are protected.
114
ENTER
EXIT
ESC
key, the value remains unchanged.
X.LIMIT Max - X.LIMIT Min
english
DBND 1 %
INPUT
KXopn 1
KXcls 1
KDopn 0
KDcls 0
YBfric 0
YEfric 0
(see Auxiliary function "26.2.6 X.LIMIT – Limits the
Type 8792, 8793 Type 8792, 8793
Configuring the auxiliary functions
*
OK
Enter
value