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DOI:10.18429/JACoW-ICALEPCS2015-WEPGF001
Title The Instrument Control Electronics of the ESPRESSO Spectrograph @VLT
Authors
  • V. Baldini, G. Calderone, R. Cirami, I. Corettipresenter, S. Cristiani, P. Di Marcantonio, P. Santin
    INAF-OAT, Trieste, Italy
  • D. Mégevand
    Université de Genève, Observatoire Astronomique, Versoix, Switzerland
  • F. Zerbi
    INAF-Osservatorio Astronomico di Brera, Merate, Italy
Abstract ESPRESSO, the Echelle SPectrograph for Rocky Exoplanet and Stable Spectroscopic Observations, is a super-stable Optical High Resolution Spectrograph for the Combined Coudé focus of the VLT. It can be operated either as a single telescope instrument or as a multi-telescope facility, by collecting the light of up to four UTs. From the Nasmyth focus of each UT the light is fed, through a set of optical elements (Coudé Train), to the Front End Unit which performs several functions, as image and pupil stabilization, inclusion of calibration light and refocusing. The light is then conveyed into the spectrograph fibers. The whole process is handled by several electronically controlled devices. About 40 motorized stages, more than 90 sensors and several calibration lamps are controlled by the Instrument Control Electronics (ICE) and Software (ICS). The technology employed for the control of the ESPRESSO subsystems is PLC-based, with a distributed layout close to the functions to control. This paper illustrates the current status of the ESPRESSO ICE, showing the control architecture, the electrical cabinets organization and the experiences gained during the development and assembly phase.
Paper download WEPGF001.PDF [0.929 MB / 4 pages]
Poster download WEPGF001_POSTER.PDF [5.729 MB]
Conference ICALEPCS2015, Melbourne, Australia
Series International Conference on Accelerator and Large Experimental Physics Control Systems (15th)
Proceedings Link to full ICALEPCS2015 Proccedings
Session Poster session
Date 21-Oct-15   17:15–18:15
Main Classification Control System Infrastructure
Keywords controls, PLC, electronics, software, interface
Publisher JACoW, Geneva, Switzerland
Editors Lou Corvetti (AS, Clayton, Australia); Kathleen Riches (SLSA, Clayton, Australia); Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-148-9
Published December 2015
Copyright
Copyright © 2015 by JACoW, Geneva, Switzerland     CC-BY Creative Commons License
cc Creative Commons Attribution 3.0