The GTC main axes servos and control system

Bibcode
2008SPIE.7019E..17S
DOI
10.1117/12.789317
Suárez, M.; Rosich, J.; Ortega, J.; Pazos, A.
Bibliographical reference

Advanced Software and Control for Astronomy II. Edited by Bridger, Alan; Radziwill, Nicole M. Proceedings of the SPIE, Volume 7019, pp. 70190J-70190J-12 (2008).

Advertised on:
8
2008
Number of authors
4
IAC number of authors
4
Citations
0
Refereed citations
0
Description
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.
Type
Non-refereed

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