P.q'lin - Starting The Routine For Linearization Of The Process Curve; Display During Call-Up And Execution Of The Routine - Burkert 8630 Operating Instructions Manual

P.Q'LIN
Starting the routine for linearization of the process curve
This function makes sense only when flow control is to be carried out.
➔ ➔ ➔ ➔ ➔ You start the routine for linearization of the process characteristic by calling up the menu item P.Q'LIN
in the main menu and pressing the MANUAL/AUTOMATIC key for 5 seconds.
NOTE
The function P.Q'LIN can only be started when the menu item P.CONTRL / P.COINP /
INP FREQ or item P.CONTRL / P.COINP / INP420 has been selected.
With the activation of the function P.CONTRL , the functions P.Q'LIN , which are required for process
control, are copied into the main menu. Via these functions, the program is started for autonomous
determination of the fixed points for a correction characteristic.
The program increases in 20 steps the valve stroke from 0 to 100 % and measures the associated
process variables. The pairs of values of the correction characteristic are stored as a freely
programmable characteristic under the menu item CHARACT/CHAFREE and may be viewed under this
menu item.
If the menu item CHARACT was not transferred under the menu item ADDFUNCT to the main menu,
this is done automatically on execution of the function P.Q'LIN . At the same time, the menu item
CHARACT/CHAFREE is activated.

Display during call-up and execution of the routine

Display
P.Q'LIN 5
P.Q'LIN 4
:
P.Q'LIN 0
¦ P.Q'LIN 0
¦ P.Q'LIN 1
¦ P.Q'LIN 2
¦ P.Q'LIN 3
:
P.Q'LIN.END
Q.ERR X.X
Description
Countdown from 5 to 0 for starting
der Routine
Display of the fixed point that is being approached at the moment
(der Fortgang wird durch einen sich drehenden Balken am linken
Rand des Displays angezeigt)
(flashing) End of routine
Message on occurrence of an error
(shown on the right is the error number - see chapter Maintenance
process controller )
O
PERATING THE PROCESS CONTROLLER
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