Displaying report 1-1 of 1.
Reports until 05:54, Saturday 15 August 2015
H1 ISC
nutsinee.kijbunchoo@LIGO.ORG - posted 05:54, Saturday 15 August 2015 - last comment - 06:43, Saturday 15 August 2015(20548)
Trouble getting through ENGAGE_ASC

Guardian just spent 40+ minutes in ENGAGE_ASC_PART3 state. DSOFT and CSOFT kept switiching back and forth between "ON:INPUT" and "OFF:FM2". I set the ISC_LOCK to manual and skipped to the next step, lost lock shortly of course. Now I'm stuck at ENGAGE_ASC_PART2 with Guardian message "POP A has a large offset. Align by hand." but abs(ASC-POP_A_PIT_IN1) and abs(ASC-POP_A_YAW_IN1) is already less than 1 (conditions for the Guardian to move on to the next state). Still trying to figure out what to do.

Images attached to this report
Comments related to this report
nutsinee.kijbunchoo@LIGO.ORG - 06:43, Saturday 15 August 2015 (20549)

I checked to make sure that the conditions to get pass ENGAGE_ASC_PART2 were met, set ISC_LOCK to manual and moved to ENGAGE_ASC_PART3. DSOFT and CSOFT were in the conditions they were supposed to be (input on, correct gains) but Guardian seems to have trouble moving on (the same loop as before). I paused it and manually copied-pasted the code to Guardian terminal. Then manually select REFL_IN_VACUO. Soon lost lock at PARK_ALS_VCO.

 

Well, I tried.....

Displaying report 1-1 of 1.