Interlock Defeat /
Device Disable
Management System
v1.5
(Driver)
Accelerator Complex:
Driver
RIB
TR13
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Implementation
Removal
Interlock Defeat
System(s) Affected:
Optics
Interlock to be Defeated:
1AQ15 ground current detection circuit bypassed
Implementation:
Number:
Date:
2017-08-22
Time:
18:15:00
2017-2
Implemented By:
Micheal Donohoe
In Consultation With:
Status:
Active
Estimated Duration:
104 weeks
Reason for Defeat:
Ground currents in 1AQ15 are low. With 1AQ15 current at ~750A, ground current is approximately 4A.
Number of Yellow Tags:
2
Location of Defeat Tag(s):
1) MCR Defeat Board
2) 1AQ15 PS
How Was Defeat Implemented?
Where is Defeat Located?:
Circuit bypassed in the 1AQ15 power supply.
Describe Alternate Protection:
None described on original paper defeat.
Fault Reports:
Work Permits:
Disables:
Interlock Defeat
Removal:
Number:
Date:
2023-04-27
Time:
12:15:00
2017-2
Removed by:
Micheal Donohoe
Status:
Active
Interlock Verification Method:
Number of Tags Removed:
0
Comments:
Micheal Donohoe:
2020-11-14 12:53:02.98127
Original paper defeat #8025.
Requested/approved by Doug Preddy.
Implemented by Dan Louie.
Jas Uppal:
2023-04-27 12:03:18.328807
Defeat still active. Ground fault still present and defeated as reported by Dan Louie.
Brandon Humphries
David Bandiera
Elena Bylinskaia
Jason Wait
Robert Scheepmaker
Eric Chapman
Ryan Lovelidge
Riley Schick-Martin
Dale Nagra
Travis Kurucz
Chris Sooley
Kevin Lucow
Jas Uppal
Kathleen Genge
Gauhar Hayat
Frank Hosta
Ryan Anderson
