====== LVPS Trips during LS1 in 2013 ======

| Module | Trip time | Last installation before trip, box number | Symptom, problem found | Other notes |
| EBC42 | 2013-12-12 23:47:25 |12-DEC-13 23:47:25, | | |
| LBA47 | 2013-11-20 00:05:13 |19-NOV-13 14:50, 704| strange negative spikes in voltage and current of HV+15V brick, HV-15V brick current 0 after fLVPS switched on https://pcata007.cern.ch/elog/Maintenance/1492| |
| LBA14 | 2013-11-15 00:45:05 |13-NOV-13 18:00, 716| | |
| LBA08 | 2013-11-05 00:59:46 |10-JAN-12 16:30, 335| Short tantalum cap at secondary output on brick #(?) | Replace cap, brick starts again|
| EBC46 | 2013-10-31 01:17:55 |15-MAR-13 14:41, 552|21-MAR-13: wrong monitored temperature, doesn't start| |
| LBC22 | 2013-06-11 04:20:21 |07-JUN-13 17:48, 625| | |
| EBC42 | 2013-05-31 22:01:00 |15-MAR-13 14:41, 512| | |
| LBA33 | 2013-05-15 21:26:40 |14-MAY-13 20:41, 578| | |

Description:
  * LVPS are monitored between 21:00-7.00 (nights).
  * The ignore list is created on-the-fly by analysing LVPS modules that are OFF between 20.00:21.00.
  * To reduce the output, a module with V=0 volts is checked every 2h. 

====== 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:

{{:tilecal:lvpsnote.pdf|}}


See the [[tilecal:lvpstripmonitoring2013| 2013 monitoring wiki]]

Description:
  * LVPS are monitored between 21:00-7.00 (nights).
  * The ignore listis are created on-the-fly by analysing LVPS modules that are OFF between 20.00:21.00.
  * To reduce the output, a module with V=0 volts is checked every 2h.