7.3 Sequence of automatic initialization
Overview
The automatic initialization takes place in the following phases:
Automatic initialization phase Description
Start -
RUN 1 Establishing the direction of action.
RUN 2 Checking the actuator travel and trimming the lower and
upper endstops.
RUN 3 Establishing and displaying the travel time (leakage test)
RUN 4 Minimization of controller increments
RUN 5 Optimization of the transient response
End -
The following structured charts describe the sequence of initialization. The "Up/Down" names
indicate the direction of action of actuators.
Linear actuator Part-turn actuator
Open Closed Closed Open
Commissioning
7.3 Sequence of automatic initialization
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE 109
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