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Operation
7.3 Optimizing the controller data
Diagnostics
Proceed as follows to call the "Diagnostics" mode from the "Automatic" or "Manual" modes:
1. Press all three buttons of the positioner.
2. Keep these buttons pressed for more than 2 seconds.
Current operating data can be called and displayed in this mode, e.g.:
● Stroke number
● Number of changes in direction
● Number of fault messages
Note
The "Automatic" and "Manual" modes remain set when switching to the "Diagnostics"
mode. The positioner responds as per the set mode:
• The predefined setpoint is used as a control variable in the automatic mode.
• The last reached position is retained in the manual mode.
7.3
Optimizing the controller data
Note
Initialize the positioner automatically before changing the parameter settings as per your
specific requirements.
The positioner determines the data for control quality automatically during the initialization
process.
The data determined is optimized for a short transient time in case of minor overshoots.
The adjustment can be accelerated or the attenuation can be intensified by optimizing the
data.
The following special cases are ideal examples for a targeted data optimization:
● Small actuators with actuating times < 1 s.
● Operation with boosters.
You must change the setting of the following parameters to optimize the controller data.
Proceed as follows:
1. Select the parameters in the diagnostics menu.
2. Activate the setting function. Keep the
more than 5 s.
3. When you change the selected parameter, it is immediately updated. The effects on the
controller results can then be tested.
104
increment or
decrement button pressed for
SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
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