Reports until 11:46, Thursday 06 June 2024
H1 ISC (ISC)
jennifer.wright@LIGO.ORG - posted 11:46, Thursday 06 June 2024 - last comment - 14:42, Friday 07 June 2024(78278)
Changed ISC_LOCK.py to remove ASC-AS_B offset

Jenne D,  Jennie W

Jenne noticed that our AS_A_YAW offset was on in the current state (PREP_FOR_LOCKING). We don't want this offset on currently as we are moving to a different spot on the OFI for which we need the picomotors, therefore we my need to rethink AS_A and B alignment offsets.

We turned this offset and the other AS_A and AS_B oiffsets off.

 

This is the only one I could find set in the ISC_LOCK guardian so I commented this line out.

        elif self.counter==9 and self.timer['LoopShapeRamp']:
            #ezca['ASC-AS_A_DC_YAW_OFFSET'] = -0.15 J Wright commented this out on 6th June 2024.
            ezca.switch('ASC-AS_A_DC_YAW', 'OFFSET', 'ON')

I reloaded the ISC_LOCK guardian.

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Comments related to this report
jennifer.wright@LIGO.ORG - 14:42, Friday 07 June 2024 (78306)

I just reverted this as Sheila pointed out this offset was put in in here in March to remove some of our DHARD coupling to DARM. This was last checked by Sheila in May.