SED 024.16.720 - Function Diagram of the Positioner with Single-Acting Actuator

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System Description
Type 024.16.720
6.4.3. Function diagram of the positioner with single-acting actuator
The illustrated function diagram describes the function of the positioner (Type 024.16.720).
Control system
1
2
Position
controller
Control system
1: Aeration valve
2: Bleed valve
Pressure
supply
Exhaust air
Position
measuring
system
Actual
position
external
position
set-point value
Positioner
Pneumatic
actuator
(single-acting)
Valve
(actuator)
Fig. 3: Function diagram