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Proceedings Paper

The GTC main axes servos and control system
Author(s): M. Suárez; J. Rosich; J. Ortega; A. Pazos
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Paper Abstract

The GTC azimuth and elevation axes control systems employ large custom direct-drive motors operated by means of embedded fully-digital current loops. A high-performance position loop has been developed based on sinusoidal encoder feedback with interpolation error compensation. Real-time servo feedback and trajectory tracking is implemented by object-oriented software components at CPU-level which trigger encoder sampling, interpolate the remote CORBA demands and perform high-frequency setpoint streaming for the servo controller.

Paper Details

Date Published: 14 July 2008
PDF: 12 pages
Proc. SPIE 7019, Advanced Software and Control for Astronomy II, 70190J (14 July 2008); doi: 10.1117/12.789317
Show Author Affiliations
M. Suárez, GTC Project, Instituto de Astrofísica de Canarias (Spain)
J. Rosich, GTC Project, Instituto de Astrofísica de Canarias (Spain)
J. Ortega, GTC Project, Instituto de Astrofísica de Canarias (Spain)
A. Pazos, GTC Project, Instituto de Astrofísica de Canarias (Spain)


Published in SPIE Proceedings Vol. 7019:
Advanced Software and Control for Astronomy II
Alan Bridger; Nicole M. Radziwill, Editor(s)

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