Flowserve 3400IQ Digital Positioner - Manual (Page 8)

Logix 3400IQ Digital Positioner FCD LGENIM3401-00 – 06/06

Figure 1: Logix 3400IQ Digital Positioner Schematic (air-to-open configuration)
OO
Stem Position Sensor
Piezo V
alve
Output 2
Output 1
Hall Effect Sensor
Flame Arrestor
Exhaust
Spool V
alve
Flame Arrestor
Pressure Sensor Board
Air Supply
Main PCB
Regulator
Filter
Flame Arrestor
Digital Position Algorithm
LED Display
FF Input Signal