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OPERATION AND CONTROLLER FUNCTIONS
Start the automatic adaptation of the positioner to the current operating conditions
X.TUNE
- Autotune for positioner
➔ Start the program for automatic parametrization of the TOP Control Continuous via the menu item
X.TUNE.
The following functions are initiated automatically:
• Adaptation of the sensor signal to the (physical) stroke of the valve used
• Determination of parameters of the PWM signals for driving the solenoid valves integrated in the
TOP Control Continuous.
• Setting of the controller parameters of the positioner. Optimization is done according to the
criteria: as short a correcting time as possible and simultaneously freedom from overshoot.
➔ Start AUTOTUNE by calling up X.TUNE in the main menu.
➔ Then depress the MANUAL/AUTOMATIC key for 5 seconds.
ADDFUNCT
See section
Configuring the supplementary functions.
➔ Jump over this menu item on first commissioning.
NOTE
The basic settings onthe TOP Control Continuous are made in the factory. On
commissioning, nevertheless, execution of X.TUNE is
absolutely necessary
. TOP Control
Continuous then determines automatically the optimum settings for the current operating
conditions.
If the supplementary function
X.CONTRL
is present in the main menu during execution of
X.TUNE
, the positioner dead band
X.CO DBND
is additionally determined automatically as
a function of the frictional behaviour of the positioning mechanism (see chapter
Supplementary Functions
-
X.CONTROL
).
NOTE
To cancel
AUTOTUNE
, operate both arrow keys at the same time and select
X.TUN BRK
.
Display Description
TUNE 5
Countdown from 5 to 0 start of
AUTOTUNE
TUNE 4
:
TUNE 0
¦ X.T INIT
Display of the autotune phase in progress at the moment
¦ X.T A1-P
(continuation is indicated by a rotating bar to the left of the
¦ X.T TOPN
display)
¦ X.T TCLS
:
TUNE-END
Flashing display ➞ end of
AUTOTUNE
X.ERR X
Message on occurrence of an error
(Indication right: Error number, see chapter
Maintenance
and controller fault rectification)
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