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Entry  Fri Jul 10 01:25:28 2020, gautam, Update, LSC, Locking notes 
    Reply  Fri Jul 10 15:26:28 2020, gautam, Update, LSC, MC2 coils need DC balancing? MC2_balancing.pngASDC.png
       Reply  Sat Jul 11 18:24:30 2020, Koji, Update, LSC, MC2 coils need DC balancing? 
       Reply  Sun Jul 12 02:42:01 2020, gautam, Update, LSC, Locking (on rossa) ASCsteps.png
       Reply  Mon Jul 13 11:36:08 2020, rana, Update, LSC, MC2 coils need DC balancing? 
Message ID: 15474     Entry time: Mon Jul 13 11:36:08 2020     In reply to: 15468
Author: rana 
Type: Update 
Category: LSC 
Subject: MC2 coils need DC balancing? 
  1. if IMC REFL is not increasing, I don't think its a mis-alignment. Usually, REFL is a more sensitive indicator of alignment than TRANS since its usually near zero. Maybe the MC2 TRANS PD is not centered or doesn't have enough lens action.
  2. to reduce the DC load on MC2, you could have a slow releif drive the ETMs and DC and minimize LSC-MCL
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