Burkert Type 8630 Manuel d'utilisateur Page 58

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56 - 8630
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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