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tilecal:lvpstripmonitoring

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LVPS Trip monitoring in 2015

Module Trip time Symptom, problem found DCS image
LBA372015-04-28 13:33:51NOT a real trip. Power-cycled to verify deskew adjustment https://atlasop.cern.ch/elisa/display/259331
LBC122015-04-28 13:31:01NOT a real trip. Power-cycled to verify deskew adjustment https://atlasop.cern.ch/elisa/display/259331
LBA072015-04-28 13:30:11NOT a real trip. Power-cycled to verify deskew adjustment https://atlasop.cern.ch/elisa/display/259331
EBA192015-04-28 13:22:03NOT a real trip. Power-cycled to verify deskew adjustment https://atlasop.cern.ch/elisa/display/259331
LBC242015-04-28 13:16:51NOT a real trip. Power-cycled to verify deskew adjustment https://atlasop.cern.ch/elisa/display/259331
EBC62 2015-04-22 11:18:28 NOT a real trip, EBC62 was power-cycled requested by DCS to fix timing jump (power-cycled https://atlasop.cern.ch/elisa/display/258617 ; timing jump https://atlasop.cern.ch/elisa/display/258618)
LBC182015-04-22 11:19:31NOT a real trip. Power-cycled https://atlasop.cern.ch/elisa/display/258618
EBA082015-04-17 22:47:27Not a real trip, HV_830 tripped, restarted HV side https://atlasop.cern.ch/elisa/display/258168
EBA022015-04-16 15:19:54NOT a real trip, power-cycled to fix discarding events https://atlasop.cern.ch/elisa/display/257996
EBC26 2015-04-04 15:10:21 REAL trip https://atlasop.cern.ch/elisa/display/256790
LBC03 2015-04-09 06:07:10 Probably a real trip. No elog entry found
LBC31 2015-04-03 10:01:31 NOT a real trip, the module was due to discarding events and auto power-cycled many time. It was off at ~0:00 on April 3, 2015 https://atlasop.cern.ch/elisa/display/256633 and was switched on again ~13:00 on April 3, 2015 https://atlasop.cern.ch/elisa/display/256669. The problem was fixed by using 2nd readout fiber https://atlasop.cern.ch/elisa/display/256668
LBC31 2015-04-03 02:00:00 NOT a real trip, the module was due to discarding events and auto power-cycled many time. It was off on ~0:00 on April 3, 2015 https://atlasop.cern.ch/elisa/display/256633 and was switched on again ~13:00 on April 3, 2015 https://atlasop.cern.ch/elisa/display/256669. The problem was fixed by using 2nd readout fiber https://atlasop.cern.ch/elisa/display/256668
LBC31 2015-04-02 21:01:49 NOT a real trip, power-cycled to fix 100% discarding events https://atlasop.cern.ch/elisa/display/256626. It was switched off ~0:00 on April 03, 2015 https://atlasop.cern.ch/elisa/display/256633
LBC31 12:18:09 Not sure it is real trip, but LBC31 experienced multiple auto power cycle during 2014-04-02 until it turned off https://atlasop.cern.ch/elisa/display/256633
LBC31 2015-04-02 00:59:29 NOT a real trip, power-cycled to fix 99% discarding events https://atlasop.cern.ch/elisa/display/256502
EBA11 2015-03-31 23:35:39 Power cycled https://atlasop.cern.ch/elisa/display/256382
LBC11 2015-03-31 10:22:27 Seem to be power cycled after this “LBC11 seems to be off (at least the ROD link is off). [Run #259427 LB #51]” https://atlasop.cern.ch/elisa/display/256329, two day later report showed it was power recycled frequently https://atlasop.cern.ch/elisa/display/256504
EBC10 2015-03-25 11:57:07 real trip https://atlasop.cern.ch/elisa/display/255607
EBC25 2015-03-25 01:45:56 Power cycled due to lost CAN-bus communication https://atlasop.cern.ch/elisa/display/255559
EBC26 2015-03-19 08:08:17 Real trip https://atlasop.cern.ch/elisa/display/254713
EBC10 2015-03-13 23:18:49 real trip https://atlasop.cern.ch/elisa/display/254196
LBC20 2015-03-11 10:14:45
EBC56 2015-03-10 13:23:45
LBA47 2015-03-09 16:00:02
LBA05 2015-03-06 12:56:09 Not found elog for this trip but later on 3/15 this modules discarded events (67%) and was power recycled by that (https://atlasop.cern.ch/elisa/display/254185). It could be that this trip was because of power-cycled by the same reason

LVPS Trip monitoring in 2014

LVPS trip monitoring program: https://atlaswww.hep.anl.gov/asc/TileCal/EventReporterLVPS/

Module Trip time Last installation before trip, box number Symptom, problem found DCS image
EBC56 2014-01-16 21:50:26 tripped by -15V_HV, 5V_HV Vout = 0 at ~21:50 pm but Iout didn't change until ~10:40 pm ebc56_21h_jan16_2014.pdf
LBA53 2014-01-14 22:08:17 19-NOV-13, 543 lba53_22h_jan14_2014.pdf
Note: we have masked dead EBC42 since it is not accessible at this moment

Also look at Maintenance elog and Operation elog

History

Useful notes

  • Offline LVPS trip monitoring. Software implementation / Chekanov, S (ANL); Norberg, S (ANL/University of Oklahoma); Proudfoot, J (ANL) ATL-COM-TILECAL-2011-020.- Geneva : CERN, 2011 - 7 p.http://cdsweb.cern.ch/record/1228921?ln=en
  • Analysis of TileCal fLVPS Trip Characteristics / Chekanov, S (ANL); Norberg, S (ANL/University of Oklahoma); Proudfoot, J (ANL) ATL-COM-TILECAL-2011-019.- Geneva : CERN, 2011 - 11 p.ttp:cdsweb.cern.ch/record/1211303?ln=en Local copy: lvpsnote.pdf
tilecal/lvpstripmonitoring.1430587590.txt.gz · Last modified: 2015/05/02 17:26 by duong