AUMA’s fibre optic initiative advances actuation

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AUMA, the manufacturer and developer of modular electric actuators, reports growth of fibre optics (FO) in process technolgy. Expanding ...


AUMA, the manufacturer and developer of modular electric actuators, reports growth of fibre optics (FO) in process technolgy. Expanding demand for this field data transfer solution, has led to AUMA’s introduction of a single-mode FO interface capable of supporting automation solutions with a range of up to 15km between field devices. Confirmed FO benefits include transmission over large distances. Resistance to EMC ensures data and supply lines can be installed in one duct. Redundant data transmission is achieved by simple loop topology; galvanic isolation is integrated virtually and overvoltage damage is prevented. These advantages led AUMA to equip its actuators with integral FO fieldbus interfaces in the late 1990s.Established multi-mode fibre optic technology supports distances up to 2.5km. Ongoing R&D from AUMA has led to introduction of a single-mode interface version with extended functionality and simplified handling. The initiative introduces a flexibility that caters for substantially greater distances between field devices. An enlarged actuator terminal compartment simplifies cable connection and the new FO solution can be configured, as required. Applications set to benefit include tunnel technology.

A further confirmed benefit of fibre optic interfaces reported by AUMA is evaluation of FO signal quality during operation. Should the optical signal fall short of its required level, an alarm is transmitted to the DCS via fieldbus: appropriate measures can therefore be taken prior to system failure.

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Valve Solutions: AUMA’s fibre optic initiative advances actuation
AUMA’s fibre optic initiative advances actuation
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