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Conference Papers Year : 2018

The hardware control system for WEAVE at the William Herschel Telescope

Jose Miguel Delgado
  • Function : Author
Saúl Menéndez Mendoza
  • Function : Author
Jose Alonso Burgal
  • Function : Author
Jose Miguel Herreros
  • Function : Author
Sergio Picó
  • Function : Author
Don Carlos Abrams
  • Function : Author
Carlos Martin
  • Function : Author
Diego Cano
  • Function : Author
F. J. Gribbin
  • Function : Author
Jure Skvarč
  • Function : Author
Kevin Dee
  • Function : Author
Emilie Lhome
  • Function : Author
Gavin Dalton
  • Function : Author
Kevin Middleton
  • Function : Author
Scott Trager
  • Function : Author
J. Alfonso L. Aguerri
  • Function : Author
Antonella Vallenari
  • Function : Author
Esperanza Carrasco
  • Function : Author

Abstract

When an alt-azimuth telescope is tracking at a specific field, it is necessary to use a de-rotator system to compensate the Earth's rotation of the field of view. In order, to keep the telescope tracking the field of view selected, the instrument will need to a rotation system for compensating it [1]. The new WEAVE [2] two degrees field of view requires a new field de-rotator on the top-end of the telescope. The rotator system has been designed with a direct drive motor which eliminates the need for mechanical transmission elements such as gearboxes, speed reducers, and worm gear drives. This design is a huge advantage for the system performance and lifetime because it eliminates undesirable characteristics such as long-time drift, elasticity, and backlash. The hardware control system has been developed with a Rockwell servo-drive and controller. The rotator has to be controlled by the high-level software which is also responsible for the telescope control. This paper summarizes the model developed for simulating and the software which will be used to accept the rotator system. A performance study is also carried out to test the CIP (Common Industrial Protocol) for communications between the high-level software and the rotator hardware.

Dates and versions

obspm-04072891 , version 1 (18-04-2023)

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Cite

Jose Miguel Delgado, Saúl Menéndez Mendoza, Jose Alonso Burgal, Jose Miguel Herreros, Sergio Picó, et al.. The hardware control system for WEAVE at the William Herschel Telescope. Proceedings of the SPIE, 2018, à renseigner, Unknown Region. ⟨10.1117/12.2313238⟩. ⟨obspm-04072891⟩
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