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Reports until 12:33, Sunday 24 March 2019
H1 SUS (ISC, SUS)
cheryl.vorvick@LIGO.ORG - posted 12:33, Sunday 24 March 2019 (47819)
Removed A2L script from 2018 SUS A2L_screen

Don't use the old A2L script that was reachable through the SUS A2L_screen.  When the new dither alignment system was installed in H1, the old A2L script became a hazard. 

The old script changes many more channels than guardian does during reacquisition of lock, so the old A2L alters the state of H1 in a way that guardian can't recover.

Sheila found the output matrix of the dither align loops were all zeros, except for one entry to the BS, aolng with other missing/wrong entries.

Sheila is recovering the system by hand using SDF.

I am removing the access to the A2L script from the SUS A2L_screen.

Old medm and new medm images attached.

Old A2L script id still here, .../trunk/isc/common/scripts/decoup/a2l_min_LHO.py.

- Sheila, Cheryl

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