Displaying report 1-1 of 1.
Reports until 08:03, Tuesday 11 August 2015
H1 ISC (CDS, PSL, SEI, SUS)
jeffrey.kissel@LIGO.ORG - posted 08:03, Tuesday 11 August 2015 (20410)
Maintenance Day Prep
J. Kissel, B. Weaver, C. Vorvick

- ISC_LOCK guardian to DOWN, set in PAUSED
- IMC_LOCK set to OFFLINE
- ALIGN_IFO set to PAUSED

- SEI_ETMY to OFFLINE and SUS_ETMX to SAFE for prepping SUS EX reversion to slow front end computer.

-Cleared ETMX SDF warnings about new violin mode damping configuration, initialized new RMSLP and L3_CAL_LINE channels and set to monitored

- Accepted ETMY BIAS sign flip and corresponding DRIVEALIGN gain sign flip.

- Accepted ALS Y PZT2 YAW MISALIGN BIAS to be 11200 (from 11500)

- Reverted SUS BS LOCK L OFFSET (and TRAMP) to 0 and 10 (respectively) from 10000 and 30 (respectively).

- Accepted SUS ITMY violin mode damping settings, and that the output is OFF for ITMY OLDAMP P.

- Accepted SUS ITMX optical lever Y damping GAIN to be 0.0 (from -111). 

NOTE: ITM Optical Lever P Damping is totally inconsistent. We've found that ITMX P is ON (gain and output switch) yet ITMY Y is on OFF (gain -300 output is OFF).
We tested TJ's modifcations to the SUS guardian by exercising the SAFE state, which turns OFF the outputs. By design, the outputs should be turned back ON in the DAMPED state. Will speak with TJ.
Displaying report 1-1 of 1.