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Other Keywords |
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| WEP11 |
EtherCAT Solution for the TPS Control System |
controls, EPICS, Ethernet, insertion-device |
57 |
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- C.Y. Liao, Y.-S. Cheng, K.T. Hsu, K.H. Hu, C.Y. Wu
NSRRC, Hsinchu, Taiwan
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The EtherCAT real-time Ethernet technology is now widely used in the field of industrial automation. This paper is to evaluate and establish the EtherCAT (Ethernet for Control Automation Technology) solution for digital and analogue I/O and motion control in accelerator applications. Thanks to developments at the Diamond Light Source, EtherCAT is integrated into EPICS with support for most devices of a general data type. Preliminary tests and plans are summarized in this report.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEP11
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| About • |
paper received ※ 09 October 2018 paper accepted ※ 17 October 2018 issue date ※ 21 January 2019 |
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| THP06 |
Reliability Improvement for the Insertion Device Control in the TPS |
controls, EPICS, radiation, insertion-device |
173 |
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- C.Y. Wu, J. Chen, Y.-S. Cheng, K.T. Hsu, K.H. Hu, C.Y. Liao
NSRRC, Hsinchu, Taiwan
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Insertion devices (ID) are essential components in third-generation synchrotron light sources, which can produce highly-brilliant, collimated and quasi-monochromatic radiation over a broad energy range for experiments. Reliable operation of the insertion devices is important to users of beamlines. The most unpredictable fault is due to a soft error in optical absolute encoders due to radiation. There are several solutions to avoid such faults, e.g. by increasing the distance of the encoder from the beam, by a lead shield cover and finally by adopting an auxiliary position sensing devices to help recovery from a fault. Efforts to improve operational reliability of the TPS ID controls will be discussed.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-PCaPAC2018-THP06
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| About • |
paper received ※ 10 October 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019 |
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| FRCC4 |
Maintenance and Optimization of Insertion Devices at NSLS-II Using Motion Controls |
controls, software, feedback, undulator |
253 |
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- C.A. Guerrero, J. Escallier, R.I. Farnsworth, D.A. Hidas, Y. Tian
BNL, Upton, Long Island, New York, USA
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Funding: This project is funded by Brookhaven Science Associates. BSA is a partnership between Battelle and The Research Foundation for the State University of New York on behalf of Stony Brook University.
The purpose of this project is to demonstrate the performance improvements on insertion devices by upgrading the motion control software. The insertion devices installed inside the NSLS-II storage ring are currently operating at micron precision with slow speeds, which can limit the scope of preferences for user experimentation. We can manipulate the devices with adaptive tuning algorithms to compensate for varying electromagnetic forces throughout motion scans. By correcting positional feedback with encoder compensation and redefining motion programs, we can safely increase the speed to run the same motion trajectories in less time.
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Slides FRCC4 [3.876 MB]
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Poster FRCC4 [4.979 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-PCaPAC2018-FRCC4
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|
| About • |
paper received ※ 10 October 2018 paper accepted ※ 17 October 2018 issue date ※ 21 January 2019 |
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reference for this paper using
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