Slide 1 of 11

1
PDS FM STATUS REPORT
Carlo Gavazzi Space M.Olivier, S.Alia,
A.Assenza, P.Ruzza, A.Albertin, A.DellAcqua,
G.Magistrati, A.Bursi

• PROCUREMENT STATUS COMPLETE
• MANUFACTURING AND INSPECTION PRE OPEN BOX
  COMPLETE
• TEST EQUIPMENT FOR ACCEPTANCE TEST CAMPAIGN
  COMPLETE
• OPEN BOX TEST AND INTEGRATION STATUS
• PDS EM MAGNETIC TEST RESULTS
• ACCEPTANCE TEST CAMPAIGN PLANNING
• PDS SCHEDULE

2
PDS FM OPEN BOX TEST STATUS

• PDS FM OPEN BOX TESTING WITH COMPLETE SECTION A
  AND B.
• OPEN BOX TEST STEPS COMPLETED SINCE LAST TIM
• OPEN BOX COMMUNICATION AND POWER TESTING OF BOTH
  SECTIONS COMPLETE
• CANBUS CROSS COMMUNICATION CHECK IS COMPLETE
• ALL BOARDS TELEMENTRIES TRIMMING IS COMPLETE
• SHORT CIRCUIT PROTECTION VERIFICATION ( NOMINAL
  LOAD CONFIGURATION) COMPLETE
• OPEN BOX TESTS IN PROGRESS
• CAN BUS SW INVESTIGATION IN PROGRESS (WORKING
  MEETING HELD ON 20-21/01/09 IN CGS WITH THE KIND
  SUPPORT OF MR. LEBEDEV AND MR. KOUTSENKO)
• OPEN BOX TEST MAJOR NCRs OPEN (2)
• See next slide for details

3
PDS FM OPEN BOX TEST STATUS

• NCR-CGS-PDS-C-128 CPU RST BUTTON
• NC ITEM Can Bus I/F Board Assy
• NON CONFORMANCE Detected During Open box test
• Suspected cause of NC SW
• CLASS Major (AFE related)
• STATUS Open
• Using CPU RST command unwanted switch off of
  second CAN BUS happens.
• AMS and CGS verified that this issue is present
  on all AMS USCM boards.
• New SW version has been provided by AMS
  collaboration to CGS and tested on PDS CAN BUS.
• Results showing resolution of the issue have been
  discussed with AMS collaboration during CGS
  working meeting of 20-21/01/09 with the kind
  support of Mr. Lebedev and Mr. Koutsenko.
• Issue is considered tecnically solved. CGS to
  call NRB with ASI and AMS for NCR closure.

4
PDS FM OPEN BOX TEST STATUS

• NCR-CGS-PDS-C-129 CAN-BUS UNESPECTED SWITCH OFF
• NC ITEM Can Bus I/F Board Assy
• NON CONFORMANCE Detected During Open box test
• Suspected cause of NC SW, design
• CLASS Major (AFE related)
• STATUS Open
• CAN BUS board reset is caused by external noise
  (ie monitors or power supplies switch on)
• AMS and CGS verified that this issue is present
  on all AMS USCM boards.
• New SW version has been provided by AMS
  collaboration to CGS and tested on PDS CAN BUS
  together with AMS collaboration during CGS
  working meeting of 20-21/01/09.
• NCR is open and further unit testing activities
  need to be adressed at NRB with AMS and ASI.

5
PDS FM OPEN BOX TEST STATUS

• OPEN ISSUES RAISED DURING CGS WORKING MEETING OF
  20-21/01/09.
• The following items are considered not critical
  for PDS performance but are under joint CGS-AMS
  investigation being common to all AMS USCM design
  and having possible relation with previously
  mentioned NCR issues.
• Activation Of The Signal S_Off During Power Down
  Of The Board
• This issue is common to all USCM boards. Not
  critical for PDS but need to be adressed at
  system level.
• Activation Of The Crow_Bar Circuit During Power
  On Phase
• This issue is common to all USCM EM boards and
  PDS CAN BUS FM , that is based on the PDS EM
  design. Item is currently under discussion.
• NOP CPU command inserted in SW
• This issue is related to NCR-CGS-PDS-C-120 that
  is considered closed. AMS request further
  investigation on this topic. Item is currently
  under discussion.

6
PDS FM INTEGRATION STATUS

• PDS FM IS UNDEGOING CAN BUS INVETIGATION TESTING.
  UNIT IS 90 INTEGRATED, FINAL BOARDS CLOSURE AND
  UNIT FINAL INTEGRATION AND CLOSURE SHALL BE
  COMPLETED ONCE CAN BUS INVESTIGATION SHALL BE
  COMPLETE AND CAN-BUS SW SHALL BE FINALLY LOADED
  ON EPROMS.

7
PDS EM MAGNETIC FIELD TEST _at_ CERN

• MAGNETIC FIELD TEST ON PDS EM (NOV 2008)
• PDS UNIT HAS BEEN TESTED _at_ CERN ON GOLIATH TEST
  MAGNET TO ASSESS UNIT CAPABILITY TO WITHSTAND THE
  FORESEEN FLIGHT FIELD
• TEST FIELD IS A STRAIGHT ONE, WHILE THE FLIGHT
  FIELD IS A COMPLEX SHAPED ONE (PICTURE OF UNIT
  DURING Y AXIS TEST SHOWED)

8
PDS EM MAGNETIC FIELD TEST _at_ CERN

• MAGNETIC FIELD TEST RESULTS EVALUATION
• SINGLE AXIS TEST LEVELS CONSERVATIVE TARGET HAVE
  BEEN DEFINED AS THE MAXIMUM COMPONENT MAGNITUDE
  (164 GAUSS) TO GUARANTE MARGINS AND AVOID COMPLEX
  EVALUATION COMPONENT BY COMPONENT.
• OBTAINED STABILITY LIMITS ARE ALWAYS HIGHER THAN
  THE SINGLE WORST CASE COMPONENT FOR ALL THE
  ELECTRONIC PARTS BUT ONLY FOR X DIR, THEY ARE
  ALSO HIGHER THAN THE WORST MAGNITUDE.
• NEXT TABLE SHOW STABILITY LIMITS VERIFIED BY TEST
  WITH RESPECT TO THE FLIGHT WORST CASE (VALUES ARE
  GAUSS)

9
PDS EM MAGNETIC FIELD TEST _at_ CERN

• PDS MAGNETIC ANALYSIS IN PROGRESS
• ANALYTICAL SIMULATIONS ARE IN PROGRESS TO CONFIRM
  PDS COMPLIANCE TO THE FLIGHT FIELD, BASED ON THE
  CORRELATION WITH GOLIATH MAGNET TEST OF PDS EM

SINGLE PDS SECTION MODELLED BY FEM
10
PDS FM ACCEPTANCE TEST CAMPAIGN AND PLAN

• THE ACCEPTANCE TEST PLAN IS CONFIRMED FROM LAST
  TIM
• TEST READINESS REVIEW (AT BOX CLOSURE) _at_ CGS
• FULL FUNCTIONAL TEST (FFT) _at_ CGS
• REDUCED FUNCTIONAL TEST AFTER PDS SHIPMENT TO
  SERMS _at_SERMS
• RANDOM VIBRATION TEST (3 AXES) _at_SERMS
• REDUCED FUNCTIONAL TEST AFTER RVT _at_SERMS
• TVT TEST (WITH REDUCED FUNCTIONAL TEST DURING
  CYCLING) _at_SERMS
• REDUCED FUNCTIONAL TEST AFTER TVT _at_SERMS
• EMC TEST _at_SERMS (TBC)
• FULL FUNCTIONAL TEST (FFT) _at_SERMS (TBC)
• TEST REVIEW BOARD _at_ SERMS (TBC)

11
PDS FM SCHEDULE

• SCHEDULE BASED ON THE FOLLOWING ASSUMPTIONS
• AMS authorize within 06/02/09 usage of the
  current SW version to prosecute PDS CAN BUS
  verification activities and to complete open box
  testing and boards closure.
• Discussion on open issues raised during CGS
  working meeting of 20-21/01/09 do not result in
  HW or SW modification.
• NEXT MILESTONES
• PDS TRR 27/03/2009
• PDS PFM Test Review Board (TRB) on 12/06/2009
• PDS PFM _at_ CERN on 16/06/2009

12
CONCLUSIONS AND COMMENTS

• ACTIVITIES IN PROGRESS
• PDS FM magnetic analysis in progress after PDS EM
  test
• PDS FM can bus investigation in progress
• NEXT STEPS
• PDS FM final verications and integration before
  box closure 27/03/2009 (TRR)
• PDS PFM acceptance campaign _at_ SERMS from
  16/04/2008 to 12/06/2009
• PDS FM Test Review Board (TRB) and shipment to
  CERN on 12/06/2009
• CRITICALITIES
• CAN BUS SW investigation is currently requiring
  extensive testing for monitoring of can bus
  signals using different sw versions.
• THANKYOU FOR YOUR KIND ATTENTION