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Reports until 15:45, Monday 04 June 2018
H1 ISC (ISC)
thomas.vo@LIGO.ORG - posted 15:45, Monday 04 June 2018 (42312)
OMC ASC Loops closed with current alignment

With the most current DRMI alignment, we found it hard to close the OMC ASC loops and had to put a few offsets in the AS WFS DC Centering loops in order to keep the OMC suspension from railing. 

Since the AS WFS weren't holding any particular reference, I took the time to offload the beam into the OMC using OM1 and OM2, of course this mis-centers the AS WFS so then I pico-ed the beam back onto AS_A and AS_B.  This leaves about 80% margin on the OMC_SUS DACs.  I then offloaded the control signals for the DC_Centering loops and the OMC_ASC to their respective alignment sliders.  

Also, I realized the the OMC guardian state "ASC_QPD_ON" doesn't reflect the OM actuation sign flip so I changed that as well and committed to SVN.

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Displaying report 1-1 of 1.