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 * Make sure [[http://k1sum0.kagra.icrr.u-tokyo.ac.jp/~controls/Manual/img/VIS/GRD-VIS_SR3.MAIN.png |VIS_SR3 guardian]] is [[GRD-VIS_SR3.STATES | ALIGNED]]. You can check on terminal by guardctrl status VIS_SR3  * Make sure [[http://k1sum0.kagra.icrr.u-tokyo.ac.jp/~controls/Manual/img/VIS/GRD-VIS_SR3.MAIN.png |VIS_SR3 guardian]] is [[http://k1sum0.kagra.icrr.u-tokyo.ac.jp/~controls/Manual/img/VIS/GRD-VIS_SR3.STATES | ALIGNED]]. You can check on terminal by guardctrl status VIS_SR3

PR3 DC alignment

  • Make sure VIS_SR3 guardian is ALIGNED. You can check on terminal by guardctrl status VIS_SR3

  • Please put -26 (<- this value is an example) to K1:VIS-SR3_IM_OLSET_P_OFFSET. From terminal, you cando caput K1:VIS-SR3_IM_OLSET_P_OFFSET -26 (<- this value is an example)

  • Make sure K1:VIS-SR3_TM_OPLEV_PIT_DIAGMON goes to -26 (<- this value is an example) . You can check on terminal by caget K1:VIS-SR3_TM_OPLEV_PIT_DIAGMON

  • Make sure green Y arm transmission goes close to 1. Check by caget K1:AOS-TMSY_GR_PDA1_OUTPUT
  • Then you can start LSC_LOCK guardian, or the initial alignment (if it seems necessary)

KAGRA/Operation/Manuals/MIF/VIS/TypeB/PR3/DCAlignmentRecovery (last edited 2019-12-25 16:09:36 by miyoki)