Siemens SIPART PS2 Operating Instructions Manual page 110

Commissioning
7.2 Overview
General information about commissioning
1. After installing the positioner on a pneumatic actuator, you must supply electric and
pneumatic auxiliary power to it.
2. The positioner is in the "P manual mode" before initialization. At the same time, "NOINI"
blinks in the lower line of the display.
3. Position feedback: You can adjust the range of position detection using the friction clutch if
necessary.
4. Adjust the positioner as per the respective actuator with the help of the initialization process
and by setting the parameters. If required, use the "PRST" parameter to cancel the
adjustment of the positioner on the actuator. The positioner is again in the "P manual mode"
after this process.
Types of initialization
You can initialize the positioner as follows:
● Automatic initialization:
during automatic initialization, the positioner determines the following one after the other:
– The direction of action
– The actuator travel and angle of rotation
– The travel time of the actuator
The positioner also adjusts the control parameters as per the dynamic response of the actuator.
● Manual initialization:
the actuator travel and the angle of rotation of the actuator are set manually. The remaining
parameters are automatically determined. This function is useful for valves which are lined,
for example, with PTFE.
● Copying the initialization data when replacing a positioner:
the initialization data of a positioner can be read and copied into another positioner. A
defective device can thus be replaced without interrupting an ongoing process through
initialization.
You have to define a few parameters for the positioner before initialization. Owing to the preset
values, you cannot adjust further parameters for initialization.
You can use a suitably configured and activated binary input to protect the configured settings
against accidental adjustment.
See also
Overview of operating modes (Page 100)
110
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC