My Running Diary for locking. Currently stuck at PREP DC READOUT TRANSITION (see below)
1524 Locking Begins (following notes from Ibrahim (84684) & Georgia's (84680) alogs)
- DRMI locks in under 2-min, then...
- 1st STOP for SRM/PRM Tweak Up @DRMI_LOCKED_CHECKED_ASC (wasn't sure if I would be fighting WFS @OFFLOAD_DRMI_ASC)
- Spent about 4mins tweaking srm/prm while mainly watching pop18 (hard to see pop90 changes). Basically want to both increase pop18 AND minimize oscilations in it (make it higher and flatter).
- 2nd STOP for SRM/PRM Tweak Up/check @CARM_5_PICOMETERS. Spent about 4min here, but made even less tweaks than above.
- 3rd STOP for ASC tweaks at PREP ASC FOR FULL IFO.
- Much different look from yesterday---less noisy signals. Looking at the Locking ASC ndscope, there were no ASC signals railing (so no need to adjust Rail Limiters...which is good because this is still new to me).
- Did have some signals which were not at zero, so adjusted:
- SR2 Pitch to get SRC2_P at zero
- SRM Yaw to get SRC1_Y to zero....but this one is tied to SR2 Yaw
- SR2 Yaw was adjusted to get SRC2_Y to zero, but it would affect SRC1_Y. So I sort of split the difference to get them better and BOTH as close to zero as I could.
- Thennnn...
- Went to ENGAGE ASC FOR FULL IFO -> with no issues
- Diag Main NOTE: While waiting for ENGAGE ASC, happened to notice DIAG MAIN has notes about ALS x&y shutters being open
- Continued on...but then got stuck at PREP DC READOUT TRANSITION with the following issue for the TMS Servo:
- "POP X PZT railed" comes and goes ont hte TMS SERVO guardian node.
Stepping out for a break.