patrick.thomas@LIGO.ORG - posted 22:20, Saturday 08 October 2016 - last comment - 23:17, Saturday 08 October 2016(30342)
Back on site
Passed Kiwamu on route 10 and turned around. Kiwamu has reset the laser.
PMC does not lock. It seems as if the servo board is not working. The pzt ramping is still functional. This needs some help from experts.
Initially PMC, FSS and ISS were OK. However approximately 30 minutes after the PSL restart, suddenly the PMC unlocked when we were running initial alignment and did come back to resonance itself.