Burkert 8630 Instructions De Service page 122

X.tune
Autotuning of the Top Control Continuous
With the sub-menu, you start a program that performs an automatic parametring of the Top Control Continuous.
The following parameters are automatically calculated:
• Matching the sensor signal to the (physical) stroke of the control valve
• Determining the parameters of PWM signals controlling the internal solenoid valves
• Optimum adjustment of the control parameters of the position controller (target function: quickest possible movement to
set the position without hunting)
To start the autotune function, call the
key for 5 seconds.
Start of the automatic adjustment of the Top Control Continuous to the operating conditions
Display
:
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¦
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:
Fig. 6.4: Display during launching and performing the autotune
The basic configuration of the Top Control is pre-set by the factory. On commissioning, however, execution of
Advice:
"Autotune" is absolutely necessary. The Top Control then determines autonomously the optimum settings for
the current operating conditions.
ATTENTION!
Avoid incorrect adaptation of the controller by executing an Autotune in each case at the supply pressure
available in later operation (= pneumatic auxiliary energy).
If substantial interfering forces are to be expected from the flow through the valve (e.g. from large
pressure fluctuations), Autotune should be executed without medium pressure.
END
Quit the main menu and display the version of the software
In order to quit the main menu, select the submenu
the software version is displayed (
appears on the display during the storage of the changes. The instrument is then in the previous mode (MANUAL-
AUTOMATIC), before the main menu is entered.
Top Control Continuous
option within the main menu, then leave it by pressing the MANUAL-AUTOMATIC
Description
Countdown from 5 to 0, before starting the
autotune
Display the already passed steps of the
autotune procedure
(The advancement is figured on a varying
barchart (displayed on the right)
hand side of the LCD)
Blinking display => End of the autotune
function
Display in error occurence
(right display: error number; see chapter 7)
with the arrow key, then validate. On the right hand side of the screen,
).Press the MANUAL/AUTOMATIC key for 3-5 seconds, and the message
5 s
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