External Position Detection; Mode Of Operation For External Position Detection; Installation Of External Position Detection System - Siemens SIPART PS2 Series Operating Instructions Manual

External position detection

B.3 External position detection
B.3 External position detection
B.3.1

Mode of operation for external position detection

The Position Transmitter essentially consists of an enclosure and an internal position detection
system. The position is recorded by a potentiometer or an internal NCS module, section
"Principle of operation of NCS (Page 272)". The controller unit is separated from the positioner.
Such a separate installation is useful whenever the ambient conditions at the valve exceed the
specified positioner values.
The Position Transmitter is secured to a console with part-turn actuators and to a mounting
bracket with linear actuators, section "Mounting to linear actuator (Page 40)".
Auxiliary power is supplied to the Position Transmitter via the Analog Input Module (AIM) and
EMC compatibility is ensured at the same time.
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②
③
④
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⑥
Figure B-10
B.3.2

Installation of external position detection system

Mounting of the Position Transmitter corresponds to the mounting of the positioner in a non-
flameproof enclosure. Proceed as described in Section "Installing and mounting (Page 37)".
The connection of the Analog Input Module (AIM) is described in the section "Analog Input
Module (AIM) 6DR4004-6F / -8F (Page 87)".
288
Pneumatic line
Pneumatic line for double-action actuators
Position Transmitter
Electrical cable
Analog Input Module (AIM) (fitted in the positioner or retrofittable)
Positioner
Position Transmitter and positioner
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE