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:
Targets
Interlock to be Defeated:
STF Ion Exchanger Return Resistivity pinned at STF BYP 010
Implementation:
Number:
Date:
2023-08-17
Time:
02:45:00
2023-466
Implemented By:
Eric Chapman
In Consultation With:
Status:
Removed
Estimated Duration:
1 weeks
Reason for Defeat:
PLCData error coming through after meter replacement yesterday. Requested to pin the signal to run beam.
Number of Yellow Tags:
2
Location of Defeat Tag(s):
DCR, SAB2 STF interlock racks.
How Was Defeat Implemented?
Where is Defeat Located?:
STF BYP-010 pinned
Describe Alternate Protection:
Target Cooling Return Resistivity is nominal, monitored in DCR.
Fault Reports:
Work Permits:
Disables:
Interlock Defeat
Removal:
Number:
Date:
2023-08-17
Time:
03:15:00
2023-466
Removed by:
Eric Chapman
Status:
Removed
Interlock Verification Method:
BYP-010 pin removed from STF defeat racks. Ion exchanger resistivity has come off the upper limit, defeat removed in accordance with good housekeeping.
Number of Tags Removed:
2
Comments:
Eric Chapman:
2023-08-17 02:47:22.733808
When resistivity goes full scale on these meters they generate a PLC data error, generating a nuisance trip. STF supply resistivity very good at 12MOhm*cm.
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
