CAT Chat Minutes

March 29, 2004

 

General Information
Machine Stats - R. Klaffky:   Run 1-04 3/29/2004

  Delivered beam:   1169.74 hrs.
  Percentage of scheduled time:   97.47%
  Downtime during period:   30.31 hrs.
  Mean time between faults (MTBF):   61.57 hrs.

Faults:

50   03/24 08:00   To   03/24 14:55     6.92  

  4-ID BPLD Trip    [Other]

0.37 CPU Mode changed accidentally by User, refill.

# 51   03/24 15:17   To   03/25 11:24    20.12  

  14-ID BPLD Trip     [DIA]

3.04 .5 Diag , 2.03 XFD-FE 3-ID switch, ME .51 MPS flow

# 54   03/25 14:27   To   03/27 16:40    50.22  

  S3B:H1 PS trip       [PS]

0.82 Supply swapped out, refill, resume top-up

# 55   03/27 17:30   To   03/30 07:59    62.50  

  Int Dump: End of Period  

0.0

Roger Klaffky noted that faults attributed to beamline user systems will no longer be explained at the weekly CAT Chat.   FCs are directly contacting beamline personnel when faults occur on their beamlines .   This information is presented at Ops Directorate and trends will be discussed at CAT Chat so that common problems can be identified.   Faults with APS systems will still be discussed at CAT Chat meetings.

Beamline Faults (APS Systems):  Period covering 3/19-25/2003

Number

Date

Time

Beamline

Description

Downtime

Group

Resolution

000370

3/19/04

18:08

09-BM

CC2 trip closed several front end valves

0:16

SI

FC documented fault and reset FEEPS

000371

3/24/04

08:14

20-ID

Beamline lost ID control

0:15

CTL

FC temporarily set gap; Controls group fixed error in PV gateway

Injector Downtime:
            Friday, 3/26/2004:   Water flow fault booster rf (4 hours)
            Sunday, 3/28/2004:   LINAC power supply P1H1 problem (1.5 hrs.)

Stockroom Operations S. Downey:   Steve proposed changes in stockroom policy such as requiring personnel to be escorted during off-hours (4:15 p.m. to 8:15 a.m.) by floor coordinator or main control room staff.   When asked why these changes are necessary, Steve responded that there has been a $40-60K loss of stockroom inventory.   He felt these losses could in large part be due to human error at the input entry point.   Users asked if Steve could analyze these figures that he projected on viewgraph to come up with more specific reports on dollars lost.

On the basis of discussions with users during and after this CAT Chat, AOD Management is considering improvements that would least impact user, FC, and MCR operations.   These will be discussed at a future CAT Chat before being implemented.

Oxford Pump:   User commented that Bill Wesolowski identified problems with the pumps in meeting minutes last week but wondered if he also could specify any way to delay time so that oxford systems could handle fast powering-up.   Roger will ask Bill to discuss this in an upcoming CAT Chat.