Description; Function - Siemens SIPART Series Operating Instructions Manual

Description

3.1

Function

● The electropneumatic positioner, in combination with the drive, forms a regulation system.
● The setpoint w forms a current applied to the positioner, which in two-wire mode is also
● The positioner works as a predictive five-point positioner, through whose output value
● These positioning signals cause pressure changes in the drive chamber(s) and thus a
● Using three buttons and the display with the enclosure cover removed, operation (manual
● By default, the basic unit has a binary input (BE1). This binary input can be individually
● To be able to use the positioner in a variety of mechanically different rotational and linear
SIPART PS2 with and without HART
Operating Instructions, 10/2013, A5E00074631-11
The current position of the actuator is detected using a potentiometer and returned as the
actual value x. The setpoint and actual value are output simultaneously on the display.
used to power the positioner. In 3- and 4-wire mode, power is supplied through a 24-V
power input.
±Δy the integrated valves can be controlled by pulse length modulation.
repositioning of the drive until the regulation deviation returns to zero.
mode) and configuration (structuring, initialization, and parameter assignment) can be
performed.
configured and used e.g. to block the control levels.
actuators, it has a friction clutch and a switchable gear.
3
17