Delgado, Jose MiguelJose MiguelDelgadoMenéndez Mendoza, SaúlSaúlMenéndez MendozaBurgal, Jose AlonsoJose AlonsoBurgalHerreros, Jose MiguelJose MiguelHerrerosPicó, SergioSergioPicóAbrams, Don CarlosDon CarlosAbramsMartin, CarlosCarlosMartinCano, DiegoDiegoCanoGribbin, F. J.F. J.GribbinSkvarč, JureJureSkvarčDee, KevinKevinDeeLhome, EmilieEmilieLhomeDalton, GavinGavinDaltonMiddleton, KevinKevinMiddletonTrager, ScottScottTragerL. Aguerri, J. AlfonsoJ. AlfonsoL. AguerriBONIFACIO, PIERCARLOPIERCARLOBONIFACIOVALLENARI, AntonellaAntonellaVALLENARICarrasco, EsperanzaEsperanzaCarrasco2020-11-052020-11-05201897815106195480277-786Xhttp://hdl.handle.net/20.500.12386/28171When 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.ELETTRONICOenConference paper10.1117/12.23132382-s2.0-85051257597000450858000084https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10700/2313238/The-hardware-control-system-for-WEAVE-at-the-William-Herschel/10.1117/12.2313238.short2018SPIE10700E..33DFIS/05 - ASTRONOMIA E ASTROFISICA