Keita, Sheila, Ryan C, Ibrahim

Two previous alogs about this problem: 78332 78258

We tried to open the SRC1 loop and align SRM manually, we were able to decrease POP90 that way but when we again turned on the DARM offset we saw the same drop in powers that preceeds locklosses. (see screenshot, when things recover we manually turned off the DARM offset.)

We were able to move past this for today by lowering the DARM offset used from 9e-5 to 6e-5 in ISC_LOCK DARM_OFFSET.  Then to get the OMC guardian to lock we had to lower the threshold on the peak height in OMC_LOCK FIND_CARRIER line 328 to 7.  Then we had to lower the check in OMC_LOCKED from 10 to 7, OMC_LOCK line 512.

We manually reengaged the SRC1 ASC loops, and are now powering up.