GLAST LAT Project November 18, 2004 I&T Two Tower IRR 1 GLAST Large Area Telescope: I&T Integration...

GLAST LAT Project November 18, 2004

I&T Two Tower IRR 1

GLAST Large Area Telescope: GLAST Large Area Telescope: I&T Integration Readiness ReviewI&T Integration Readiness Review

Integration, Facility, Configuration and Test (IFCT)Integration, Facility, Configuration and Test (IFCT)

Nov 18, 2004Nov 18, 2004

Electrical TestElectrical Test

Brian HorwitzBrian HorwitzIFCT Electrical EngineerIFCT Electrical Engineer

SLACSLAC

Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope


I&T Two Tower IRR 2

EGSE TEST REQUIREMENTS: MD-00408EGSE TEST REQUIREMENTS: MD-00408

• Configuration of EGSE shall be controlled via released documentation

• EGSE shall be acceptance tested• EGSE shall be validated before use if it has been moved,

reconfigured, or repaired– Validation shows that equipment is both ready for use and

safe to use• High degree of confidence that equipment in that

configuration has full operating capabilities– NASA guidance

• Perform an EICIT and an SVT to ensure electrical safety• Trip points on circuit breakers, current limits in power

supplies, shall be verified• While everything is validated, the scope of validation is

tailored for each piece equipment type


I&T Two Tower IRR 3

EGSE REQUIREMENTS / RESPONSIBILITIESEGSE REQUIREMENTS / RESPONSIBILITIES


I&T Two Tower IRR 4

STATUS OF EGSE– COTSSTATUS OF EGSE– COTS

• Digital Multimeters (I&T responsible for these)– Calibrated Instrument– Validation Tests

• Embedded within test procedure that calls them– STATUS: Meter purchased exceed maximum voltage for

parts in some equipment, so we are re-procuring• Borrowing “Safe” DMM’s in the meantime

• Hand Tools– Procured, cleaned, and placed in toolbox within cleanroom

• ATE for Safe to Mate– All parts received - calibrated– Interconnection harness designed –in assembly– Rack tray’s sent out for machining – affected by safety

stand down at SLAC


I&T Two Tower IRR 5

SCOPE OF EGSE TESTS – BOB’s ETC.SCOPE OF EGSE TESTS – BOB’s ETC.

• Cables and break out boxes (I&T is responsible for these)– Design documentation complete and released– Acceptance Tests include

• Configuration inspection to assembly drawing• Interface integrity and cleanliness, inspection• Electrical continuity & isolation tests per LAT-TD-04325• Labeling with test due date, operator, QA

– Validation Tests include• Verify Acceptance Testing has been performed and is not due

for re-test• Configuration inspection• Interface integrity and cleanliness, inspection • Electrical continuity tests, manual

– Enter into validation log kept in cleanroom

• Connector Savers– Tests: Interface integrity and cleanliness, inspection


I&T Two Tower IRR 6

STATUS OF BOB’s ETCSTATUS OF BOB’s ETC

• All BOB’s designed, built, and tested– Inspection remains to be completed

• Associated cables designed, built to shortage, and tested– The backshells for the 100 pin cables were back ordered

and just arrived. Estimate assembly complete 12/1– Inspection remains to be completed

• Long versions of the Two Tower test cables for EGSE interconnections are awaiting the floor layout to determine lengths. Design, build, and test complete 12/31.

• Acceptance and Validation Test Procedures in sign off cycle


I&T Two Tower IRR 7

STATUS OF CONNECTOR SAVERSSTATUS OF CONNECTOR SAVERS

• Determining connector saver needs– Coordinating with subsystems

• All ELX boxes arrive with connector savers on each connector

• CAL delivers mated to an EM TEM, so they are not needed

• TKR towers arrive with connector savers that will be turned over to I&T

– Determining who buys connector savers for the flight cables – submitted lien to program office to fund procurement

– Complete determination by 11/24


I&T Two Tower IRR 8

SCOPE OF EGSE TESTS - PDUSCOPE OF EGSE TESTS - PDU

• EM PDU– Acceptance Tests include

• Configuration inspection to LAT-DS-01696• Interface integrity and cleanliness, inspection• EICIT and SVT tests• Functional Tests in accordance with LAT-TD-02544-01• Labeling with test due date, operator, QA

– Validation Tests include• Verify Acceptance Testing has been performed and is not due

for re-test• Configuration inspection• Interface integrity and cleanliness, inspection • Electrical STM tests

– Fill out paperwork and enter into validation log kept in cleanroom

• Further validation tests performed within the test stand using load box


I&T Two Tower IRR 9

SCOPE OF EGSE TESTS – PDU LOADSCOPE OF EGSE TESTS – PDU LOAD

• EM PDU LOAD BOX

– Acceptance Tests include

• Configuration inspection to LAT-DS-03400

• Interface integrity and cleanliness, inspection

• EICIT and SVT tests

• Functional Tests in accordance with LAT-TD-04095-01

• Labeling with test due date, operator, QA

– Validation Tests include

• Verify Acceptance Testing has been performed and is not due for re-test

• Configuration inspection


• Electrical STM tests– Fill out paperwork and enter into validation log kept in cleanroom

• Further validation tests performed within the test stand


I&T Two Tower IRR 10

STATUS OF PDU & LOAD BOXSTATUS OF PDU & LOAD BOX

• Documentation– PDU Assy, LAT-DS-01696, released– PDU Test Procedure, LAT-TD-02544-01, released– PDU Load Box Assy, LAT-DS-03400, released– PDU Load Test Procedure, LAT-TD-04095-01, released– EICIT Procedure, PDU, LAT-TD-04332, released– SVT Procedure, PDU, LAT-TD-04332, in work (12/1)

• Delivered to I&T• Inspection, acceptance test, validation pending development

of flight documentation



SCOPE OF EGSE TESTS - GASUSCOPE OF EGSE TESTS - GASU

• EM GASU


• Configuration inspection to LAT-DS-01611-09













STATUS OF GASUSTATUS OF GASU

• Documentation– GASU Assy, LAT-DS-01611-09, released– GASU/Test Stand Test Procedure, LAT-TD-04267-02,

released– EICIT Procedure, GASU, LAT-TD-04260, released– SVT Procedure, GASU, LAT-TD-04382, in work (12/1)





SCOPE OF EGSE TESTS – TEM/TPSSCOPE OF EGSE TESTS – TEM/TPS

• EM TEM/TPS


• Configuration inspection to LAT-DS-01643













STATUS OF TEM/TPSSTATUS OF TEM/TPS

• Documentation– TEM/TPS Assy, LAT-DS-01643, released– TEM/TPS Test Procedure, LAT-TD-4085-01, released– EICIT Procedure, TEM, LAT-TD-03875-02, released– SVT Procedure, TEM, LAT-TD-04097-02, released– EICIT Procedure, TPS, LAT-TD-03875-02, released– SVT Procedure, TPS, LAT-TD-04098-01, released

• Two delivered to I&T• Inspection, acceptance test, validation pending development




SCOPE OF EGSE TESTS – BUS PROTECTORSCOPE OF EGSE TESTS – BUS PROTECTOR

– Acceptance Tests include• Configuration inspection to LAT-DS-• Interface integrity and cleanliness, inspection• EICIT and SVT tests• Functional Tests in accordance with LAT-TD-• Labeling with test due date, operator, QA

– Validation Tests include• Verify Acceptance Testing has been performed and is

not due for re-test• Configuration inspection• Interface integrity and cleanliness, inspection • Electrical STM tests

– Fill out paperwork and enter into validation log kept in cleanroom

• Validation tests performed in accordance with LAT-TD-



STATUS OF BUS PROTECTORSTATUS OF BUS PROTECTOR

• Requirements identified in EGSE Plan• Design assigned within ELX• Documentation needs be created• Awaiting schedule



TEM TEST STAND - CAL AND TKR TESTSTEM TEST STAND - CAL AND TKR TESTS

• Acceptance Tests include– Configuration inspection

• LAT-DS-02861 CAL• LAT-DS-03605 TKR

– Interface integrity and cleanliness, inspection– EICIT and SVT tests– Functional Tests in accordance with LAT-TD-4085-01– Labeling with test due date, operator, QA

• Validation Tests include– Verify Acceptance Testing has been performed and is not due for

re-test– Configuration inspection– Interface integrity and cleanliness, inspection – Electrical STM tests

• Fill out paperwork and enter into validation log kept in cleanroom

– Perform tests described in LAT-TD-4085-01, Para. 5.5.4, Basic Test



STATUS OF TEM TEST STANDSTATUS OF TEM TEST STAND

• Documentation– CAL Test Stand set up procedure, LAT-DS-02861, released– TKR Test Stand set up procedure, LAT-DS-03605, released– TEM/TPS Test Procedure, LAT-TD-4085-01, released– EICIT Procedure, TEM, LAT-TD-03875-02, released– SVT Procedure, TEM, LAT-TD-04097-02, released– EICIT Procedure, TPS, LAT-TD-03875-02, released– SVT Procedure, TPS, LAT-TD-04098-01, released

• Two delivered to I&T• Inspection, acceptance test, validation pending development




GASU TEST STAND – TESTS IN 1X1GASU TEST STAND – TESTS IN 1X1

• Acceptance Tests include

– Configuration inspection LAT-TD-04267-02

– Interface integrity and cleanliness, inspection

– EICIT and SVT tests

– Functional Tests in accordance with LAT-TD-04267-02

– Labeling with test due date, operator, QA

• Validation Tests include

– Verify Acceptance Testing has been performed and is not due for re-test

– Configuration inspection

– Interface integrity and cleanliness, inspection

– Electrical STM tests


– Perform tests described in LAT-TD-4085-01, Para. 5.5.4, Basic Test



STATUS OF GASU TEST STANDSTATUS OF GASU TEST STAND

• Documentation– Assembly and test procedure, LAT-TD-04267-02, released– Validation test, run LAT-TD-4085-01, released– EICIT Procedure, GASU, LAT-TD-04260, released– SVT Procedure, GASU, LAT-TD-04382, in work (12/1)





GASU/PDU TEST STAND – TWO TOWERGASU/PDU TEST STAND – TWO TOWER

• Acceptance Tests include– Configuration inspection LAT-TD-04267-02– Interface integrity and cleanliness, inspection– EICIT and SVT tests– Functional Tests in accordance with LAT-TD-04267-02– Labeling with test due date, operator, QA

• Validation Tests include– Verify Acceptance Testing has been performed and is not due for

re-test– Configuration inspection– Interface integrity and cleanliness, inspection – Electrical STM tests


– Perform tests described in • LAT-TD-02544-01, Para. 5.3.6, PDU-GASU Interface and

electrical load tests• LAT-TD-4085-01, Para. 5.5.4, Basic Test



STATUS OF GASU/PDU TEST STAND STATUS OF GASU/PDU TEST STAND

• Documentation– Assembly and test procedure, LAT-TD-04267-02, released– PDU Validation LAT-TD-02544, released– Validation test, run LAT-TD-4085-01, released– EICIT Procedure, PDU, LAT-TD-04332, released– SVT Procedure, PDU, LAT-TD-04332, in work (12/1)– EICIT Procedure, GASU, LAT-TD-04260, released– SVT Procedure, GASU, LAT-TD-04382, in work (12/1)





TEST PROCEDURE STATUSTEST PROCEDURE STATUS

• Test procedures are being written prior to completion of test plan - risk

• CAL Test Procedure– Draft complete and in review– Draft must be updated with new input from CAL subsystem

(received after procedure completed)– Complete one week after CAL final update

• TKR Test Procedure– Draft was complete and in review three weeks ago– Draft was updated with new input from TKR subsystem

(received after procedure completed)– Complete one week after TKR final update



TEST PROCEDURE STATUS (cont)TEST PROCEDURE STATUS (cont)

• Single Tower Test– Draft in review in I&T– Affected by change to subordinate documents

• References to be updated and test descriptions re-written

– Complete 12/15• Two Tower Test

– Draft begun– Complete 12/31

• VG and CR Data Runs for LAT Integration

GLAST LAT Project November 18, 2004 I&T Two Tower IRR 1 GLAST Large Area Telescope: I&T Integration...

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