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.
With a suitable parameter assignment of the parameter "BIN1" and enabled digital input "DI1",
you protect the configured settings against accidental adjustment.
See also
Overview of operating modes (Page 98)
Commissioning
7.2 Overview
SIPART PS2 with 4 to 20 mA/HART
108 Operating Instructions, 11/2019, A5E00074631-AE
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