10 July 2008 VST hydrostatic bearing system control hardware
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Abstract
The Hydrostatic Bearing System (HBS) control hardware of the VST (VLT Survey Telescope), a 2.6 m. class Alt-Az telescope in installation phase at Cerro Paranal in Northern Chile, at the European Southern Observatory (ESO) site, is aimed at controlling all the devices present in the HBS pumping station and at monitoring the pressure values in the different points of the plant. The HBS control system is based mainly on a Local Control Unit (LCU) mounted in the HBS control cabinet and connected to the plant by means of proper I/Fs. A distributed pressure and temperature acquisition system, based on General Purpose (GP) acquisition boards, is also present. A local interlock chain and related enabling signal for the Azimuth Axis interlock chain have been implemented to avoid fault propagation in case of lack of delivery pressure. In the present paper all technical details concerning the control and monitoring of the HBS subsystem are given.
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C. Molfese, C. Molfese, P. Schipani, P. Schipani, D. Mancini, D. Mancini, S. D'Orsi, S. D'Orsi, } "VST hydrostatic bearing system control hardware", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70123M (10 July 2008); doi: 10.1117/12.786656; https://doi.org/10.1117/12.786656
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