Author: Vittor, D.
Paper Title Page
TUPV014 Control System of a Portable Pumping Station for Ultra-High Vacuum 418
  • M. Trevi, E. Mazzucco, L. Rumiz, D. Vittor
    Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
  Particle accelerators operate in Ultra High Vacuum conditions, which have to be restored after a maintenance activity requiring venting the vacuum chamber. A compact, independent and portable pumping station has been developed at Elettra Sincrotrone Trieste to pump the vacuum chamber and to restore the correct local pressure.. The system automatically achieves a good vacuum level and can detect and manage vacuum leaks . It has been designed and manufactured in-house, including the mechanical, electrical and control parts. By means of a touch screen an operator can start all the manual and automatic operations, and monitor the relevant variables and alarms. The system archives the operating data and displays trends, alarms and logged events; these data are downloadable to a removable USB stick. Controlled devices include two turbomolecular pumps, one primary pump, vacuum gauges and one residual gas analyser. The control system has been implemented with a Beckhoff PLC with RS-485 and Profibus interfaces. This paper focuses in particular on the events management and object-oriented approach adopted to achieve a good modularity and scalability of the system.  
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About • Received ※ 10 October 2021       Revised ※ 19 October 2021       Accepted ※ 20 November 2021       Issue date ※ 30 January 2022
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