AC-DC Crash Example
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Repair Problem Section
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Possible explanation:
- SEB suspected at the level of the Auxiliary power supply

Repair Solution Section
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Replacement of Power Module AC-DC:
> AC-DC Crashed removed PULS SL5.300 S/N: xxxxxxxx
> AC-DC New mounted     PULS SL5.300 S/N: xxxxxxxx

Control of the power module:
- Start Date of control cycles: 2012-xx-xx
- BAY3.1_1 BAY3.1_2 BAY4.1_1 BAY4.1_2 BAY5.1_1 BAY5.1_2
- xxx cycles done
- Reason for cycle test : end of test sequence
- Reason for cycle test : fault encountered
  > post Mortem Date: 2011-10-xx HH:mm
    1st fault:
  > FGCRun+ Status:
    G DIAG.FAULTS  > VOUT OVER VOLTAGE + EXTERNAL CROWBAR + OFF RECEIVED
    G FGC2 .FAULTS > FB_LOOP + VS_FAULT + VS_EXTINTLK
  > Front Panel Faults LEDs: OUTPUT OVER V + DISCHARGER + OFF RECEIVED
  > LHC600A-10V Test Box: SP06,7,8,9,10 + CRWF
- DIM analyse on all cycles
  > DIM 9 error: None x times (y twins)
  > DIM 23 error: None x times (y twins)
  > DIM 9,23 error: None
- Ierror analyse on all cycles
  Bay3.1_1/Bay3.1_2
  > Ierr-0 : < 0.25 A OK NOK
  > Ierr-1 : < 0.06 A OK NOK
  > Ierr-1a: < 0.01 A OK NOK
  > Ierr-2 : < 0.04 A OK NOK
  > Ierr-2a: < 0.01 A OK NOK

  Bay4.1_1
  > Ierr-0 : < 1.5 A OK NOK
  > Ierr-1 : < 7.0 A OK NOK
  > Ierr-1a: < 6.0 A OK NOK
  > Ierr-2 : < 10  A OK NOK
  > Ierr-2a: < 10  A OK NOK

  Bay4.1_2
  > Ierr-0 : < 0.20 A OK NOK
  > Ierr-1 : < 0.15 A OK NOK
  > Ierr-1a: < 0.01 A OK NOK
  > Ierr-2 : < 0.15 A OK NOK
  > Ierr-2a: < 0.01 A OK NOK

  Bay5.1_1
  > Ierr-0 : < 0.30 A OK NOK
  > Ierr-1 : < 0.03 A OK NOK
  > Ierr-1a: < 0.01 A OK NOK
  > Ierr-2 : < 0.03 A OK NOK
  > Ierr-2a: < 0.01 A OK NOK

  Bay5.1_2
  > Ierr-0 : < 2.5 A OK NOK
  > Ierr-1 : < 2.5 A OK NOK
  > Ierr-1a: < 3.0 A OK NOK
  > Ierr-2 : < 4.5 A OK NOK
  > Ierr-2a: < 4.5 A OK NOK

- Remarks:


Cycle Definition
*****************
- [ OFF > ON > 10A > 550A > 10A > -10A > -550A > 1A ]
- di/dt        : 10A/s
- steady states: 10s
- Ierr-0: Max.Ierror [10A > -10A at 10A/s]
- Ierr-1: Max.Ierror [10A > 550A at 10A/s]
- Ierr-1a: Max.Ierror[550A Static for 60s]
- Ierr-2: Max.Ierror [-10A > -550A at 10A/s]
- Ierr-2a: Max.Ierror[-550A Static for 60s]