Reports until 00:26, Monday 13 February 2017
H1 SUS (OpsInfo, SUS)
corey.gray@LIGO.ORG - posted 00:26, Monday 13 February 2017 - last comment - 09:47, Monday 13 February 2017(34084)
ETMy SUS Watchdog Would NOT Reset!

After tonight's Alaska earthquake, we had several ISIs trip.  For ETMy, the watchdogs were RESET, but it tripped again while trying to ISOLATE, AND it also tripped the ETMy SUS.  No biggie methinks.....

When I tried to Reset ETMy, had the message that the L1 stage was tripped.  Hitting the RESET button could not clear the L1 trip.  The L1 output values were well below the RMS threshold value of 8000 counts, so was perplexed that the Watchdog would NOT RESET!

I was working on the left-ops workstation while Ed was on the right (new) workstation.  When he left the room, I made another attempt to RESET, AND this time it worked :-/  Nothing done was different.  Ed noticed that this was our first time trying something from the a different workstation.....we're wondering if the new workstation could have been the issue??  This is just us speculating because we couldn't see anything else which was done differently.

Anyway....we are back & Ed is on his way to recovering us from this late-night EQ jolt.

Comments related to this report
stuart.aston@LIGO.ORG - 09:47, Monday 13 February 2017 (34092)CDS
Not sure if this is related to a CaTools.pm issue on the workstation, which we have experienced at both sites in the past, see LHO aLOG entry 24950, and LLO aLOG entry 24156.