1 Introduction
This section is based upon:
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Fieldbus FOUNDATION™ Specification “Function Block Application Process Part 1 – 3“
Revision 1.7 (FF-890 to FF-892)
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Fieldbus FOUNDATION™ Specification “Positioner Transducer Block“ Revision 3.0
(FF-906)
Type 3730-5 Positioner
The microprocessor-controlled positioner compares the reference variable cyclically transmitted
over the F
OUNDATION™ fieldbus network to the travel or opening angle of the control valve
and issues a corresponding output signal pressure.
Special features:
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Link Master Capability
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Easy attachment to common linear actuators over SAMSON direct attachment interface,
over NAMUR rib or to control valves with rod-type yokes acc. to IEC 60534-6 or to ro-
tary actuators according to VDI/VDE 3845
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Any desired mounting position of the positioner
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Simple one-knob, menu-driven operation
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Automatic start-up
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LCD easy to read in any mounting position due to selectable reading direction
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Integrated EXPERTplus diagnostics suitable for throttling and on/off valves and with addi-
tional partial stroke test for valves in safety-instrumented systems
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Classified status alarms acc. to NAMUR Recommendation NE 107
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Control parameters can be changed online
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Automatic monitoring of zero point
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Calibrated travel sensor without gears susceptible to wear
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Permanent storage of all parameters in non-volatile EEPROM (protection against power
failure)
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Adjustable output pressure limitation
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Adjustable tight-closing function
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Binary input for DC voltage signals
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Certified according to IEC 61508/SIL
6 KH 8384-5 EN
Introduction
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