Interlock Defeat

System(s) Affected:
Safety

Interlock to be Defeated:
I0103 Fast Target IN signal pinned

Implementation:	Number:
Date: 2025-01-06 Time: 14:19:00	2025-5
Implemented By: Ryan Lovelidge
In Consultation With:

Status: Active

Estimated Duration:
16 weeks

Reason for Defeat:
Fast target IN signal pinned at I0103, rear of rack A. Unable to define cyclotron off, beamstops are unresponsive due to ISBL demolition and causing access trips that cannot be cleared. In consultation with Kevin Ardon.

Number of Yellow Tags:
2

Location of Defeat Tag(s):
1. IBOP near I0103

2. MCR defeats board

How Was Defeat Implemented?
Where is Defeat Located?:
I0103 pinned at the rear of rack A

Describe Alternate Protection:
Cyclotron ignition key removed and placed in ops cabinet.

Fault Reports:

Work Permits:

Disables:

Interlock Defeat

Removal:	Number:
Date: Time:	2025-5
Removed by:

Status: Active

Interlock Verification Method:

Number of Tags Removed:
0

Comments:

Ryan Lovelidge: 2025-01-06 14:37:47.832662
See disable 2025-6.