Interlock Defeat

System(s) Affected:
Ion sources and injection BL

Interlock to be Defeated:
VIB-TNIM-022 and 023 readings swapped.

Implementation:	Number:
Date: 2022-11-03 Time: 18:30:00	2022-310
Implemented By: Kevin Lucow
In Consultation With:

Status: Removed

Estimated Duration:
6 weeks

Reason for Defeat:
Cables have been returned to their default historical (swapped) positions, until the corrections can be made in software. All VIB-TNIM-023 readings are presently coming from the VIB-TNIM-022 hardware and vice versa.

Number of Yellow Tags:
2

Location of Defeat Tag(s):
1) DCR defeat board. 2) CYCCON02_3.

How Was Defeat Implemented?
Where is Defeat Located?:
Cables swapped in ISIS by diagnostics group.

Describe Alternate Protection:
The present state is the historical default configuration.

Fault Reports:

Work Permits:
C2022-11-03-9

Disables:

Interlock Defeat

Removal:	Number:
Date: 2022-12-22 Time: 10:30:00	2022-310
Removed by: David Bandiera

Status: Removed

Interlock Verification Method:
VIB-NIM023 amplifier was replaced with a spare under WP#: C2022-11-08-5. The cables were swapped at a later date but not associated with a WP (one was taken out to swap NIM022 and 023 cables [C2022-11-14-2] but was cancelled as it was found that this had already been done). Final verification of correct VIB-NIM current signals completed under WP#: C2022-11-15-14.

Number of Tags Removed:
2

Comments:

David Bandiera: 2022-12-22 10:28:47.793733
See also Plone note titled "ISIS Beam Loss" posted Dec 01 2022.

Interlock Defeat / Device Disable Management System v1.5 (Driver)

Interlock Defeat

Interlock Defeat

Interlock Defeat / Device Disable
Management System v1.5 (Driver)