J. Oberling, E. Merilh

The PSL tripped out this morning due to the commissioning work detailed here.  The cause is the ILS losing lock, which then triggered the HPO power watchdog and shut off the HPO; the 35W FE and the chillers remained operational.  The system recovered without issue and is now back up and running.  I took the opportunity to reset the injection locking counter in both Beckhoff and the Laser MEDM screen, and tweaked up the beam alignment into the PMC (hooray for remote control!) to recover the PMC transmitted power we had yesterday (alignment drift due to temperature changes in the PSL enclosure with the environmental controls on and off).