Naoki, Vicky

To run FC ASC with both WFS (which aligns the FC cavity axis to the injected beam using FC_WFS aka RLF_QPD) and beam spot control (which aligns the FC injection axis to a green trans QPD in FCES, FC_TRANS_A, LHO:69374), we have now adjusted the time constants of these two loops and engaged them in guardian accordingly so they don't fight each other. This involves using the -20dB (gain(0.1)) filter in H1:SQZ-FC_ASC_INJ_ANG_P/Y filter banks, now in FM7. The -20dB FM7 filter has been saved in SDFs.

FC WFS ~ 30 seconds (here), FC beam spot control ~ 15 minutes (900 s, here)

FC guardian's "FC_ASC_ON" state now first turns on FC_WFS ASC (FC_CAV_POS/ANG_P/Y), waits 20 seconds to let the FC axis align, then turns on the ASC inputs to the beam spot control filter banks (FC_ASC_INJ_ANG_P/Y). This has been uploaded to FC guardian, and committed to SVN #25626.

Together, you can see the trends of how FC ASC is engaged here. First, FC_WFS aligns the FC axis for 30 seconds (top), then FC beam spot control spends 15 minutes aligning ZM3 to the FC-GR TRANS QPD pitch/yaw beam spot in FCES (bottom), over which time the cavity axis follows the injection axis moving accordingly.