30
SMARTRONIC MA
VII - 5 - 1 - 2 Positioning dead band
This setting is used to adjust the positioner dead band.
Although it is calculated automatically during autocalibration, this parameter can be adjusted
manually.
<ESC>
<OK>
>main menu
>3.settings
>3>2.calib
>3>2>manu
>3>2>2>2.db
>3>2>2>2.>1.Odb
>3>2>2>2.>1.Odb
3.SETTINGS >
<OK>
<ESC>
2.CALIB >
<OK>
<ESC>
2.MANU >
<OK>
<ESC>
2.DEAD BAND >
<OK>
<ESC>
1.OPEN DB
<OK>
<ESC>
SET OP DB
xxx.x %
<OK>
VALID ?
<OK> or <ESC>
+
-
-
-
<ESC>
<OK>
>3>2>2>2.db
>3>2>2>2.>2.Cdb
>3>2>2>2.>2,Cdb
2.CLOSE DB
<OK>
SET CL DB
<OK>
VALID ?
<ESC>
xxx.x %
<OK> or <ESC>
OPEN DB only acts when the valve is moving in the opening direction.
CLOSE DB only acts when the valve is moving in the closing direction.
If a dead band is increased, the stability is improved at the expense of the positioning accuracy.
If the dead band is decreased, the accuracy is improved at the expense of the system stability.
Autocalibration calculates the optimum dead band parameters (best accuracy/stability compromise).
VII -- 5 -- 1 -- 3 Positioner gain
This setting is used to adjust the positioner gain.
Although it is calculated automatically during autocalibration, this parameter can be adjusted
manually.
>main menu
>3.settings
>3>2.calib
>3>2>manu
>3>2>2>3.gain
>3>2>2>3>1.OG
<ESC> <OK>
>3>2>2>3>1.OG
3.SETTINGS >
<OK>
2.CALIB >
<OK>
2.MANU >
<OK>
3.GAIN >
<OK>
1.OPEN GAIN
<OK>
SET OP GAIN
<OK>
VALID ?
<ESC>
<ESC>
<ESC>
<ESC>
+
-
-
-
<ESC>
xxx.x %
<OK> or <ESC>
<ESC> <OK>
>3>2>2>3.gain
>3>2>2>3>2.CG
>3>2>2>3>2.CG
2.CLOSE GAIN
<OK>
SET CL GAIN
<OK>
VALID ?
<ESC>
xxx.x %
<OK> or <ESC>
OPEN GAIN acts only on the valve opening gain.
CLOSE GAIN acts only on the valve closing gain.
If the gain is increased, the response time is reduced at the expense of the system stability.
Excessive gain may result in system instability.
If the gain is decreased, the system stability is improved at the expense of the response time.
Autocalibration calculates the optimum gain parameters (best response time/stability compromise).
