Interlock Defeat

System(s) Affected:
Targets

Interlock to be Defeated:
2A3M20 Protect ( U-D + L-R) ratio

Status: Removed

Estimated Duration:
5 weeks

Reason for Defeat:
2A3M20 protect U-D/halo ratio + L-R halo

Number of Yellow Tags:
3

Location of Defeat Tag(s):
Main control room board and electrical room rack 5B pinout

How Was Defeat Implemented?
Where is Defeat Located?:
Circuit pinned in 2A electrical room.

Describe Alternate Protection:
Other Target protect interlocks

Fault Reports:

Work Permits:

Disables:

Status: Removed

Interlock Verification Method:
Pins removed from signals in ISAC electrical room. Signals are seen as undefeated on XT page 2A3P.

Number of Tags Removed:
3

Comments:

Dale Nagra: 2024-08-21 20:40:17.732169
Friedhelm Ames was consulted and authorized the defeat.