Positioner for a fluid actuator
AssigneeSamson Aktiengesellschaft
InventorHarald Kah
Life of this patent
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Abstract
A positioner for a fluid actuator comprising an electronics assembly designed for setpoint/actual value comparison and for outputting a feedback control signal includes a current/pressure transducer receiving the feedback control signal for controlling the actuator, an analog power supply, particularly in a range 4 to 20 mA, for powering the electronics assembly, and an additional voltage input, particularly in a range of up to 24 V, wherein said voltage input is configured as a further power supply for powering the current/pressure transducer separate from the analog power supply.
Claims19
A positioner for a fluid actuator driven by pressurising fluid, comprising:
- an electronics assembly for comparing positional setpoint and positional actual values comparison and for outputting a feedback control signal;
- a current/pressure transducer receiving the feedback control signal for controlling the fluid actuator
- an analog electrical power supply for powering the electronics assembly;
- and
- an additional voltage input configured as a further input power supply for powering said current/pressure transducer separate from said analog electrical power supply.
Dependencies are inferred from the claim text.