Interlock Defeat

System(s) Affected:
Ion sources and injection BL

Interlock to be Defeated:
Skimmer #7 grounded

Implementation:	Number:
Date: 2024-05-17 Time: 11:15:00	2024-261
Implemented By: Elena Bylinskaia
In Consultation With:

Status: Removed

Estimated Duration:
5 days

Reason for Defeat:
Skimmer #7 went into alarm state with no beam into ISIS BL.

Number of Yellow Tags:
2

Location of Defeat Tag(s):
SA L1, ISIS ground panel, Skimmer #7 "IN" signal.

How Was Defeat Implemented?
Where is Defeat Located?:
Skimmer #7 grounded at ISIS "Ground" panel.

Describe Alternate Protection:
No beam into ISIS beam line. defeat should be removed before beam injection.

Fault Reports:

Work Permits:

Disables:

Interlock Defeat

Removal:	Number:
Date: 2024-05-17 Time: 14:45:00	2024-261
Removed by: Travis Kurucz

Status: Removed

Interlock Verification Method:
Skimmer reconnected and alarm did not sound.

Number of Tags Removed:
2

Comments:

Elena Bylinskaia: 2024-05-17 11:21:55.697162
Skimmer #7 went into Alarm state without beam down the injection line. Tried to reset it at Bias box with no luck. Making loud noise in DCR and SA L1. TEMPORARY defeated it, ISIS personnel notified.