Reports until 08:52, Friday 02 December 2016
H1 SEI
hugh.radkins@LIGO.ORG - posted 08:52, Friday 02 December 2016 (32098)
WHAM3 ISI Corner2 CPSs glitches have not occurred since mitigation efforts

As reported in logs 32076 and 32079, HAM3 ISI Corner2 CPSs started glitching around 8am yesterday.  Looking this morning, given that they had glitched several times in just a few hours yesterday once they started and now have not reoccurred since power cycling the satellite rack and seating the probe gauge boards a few times, I'd say the issue has been suppressed for now.

Given that saturations are automatically removed after 1 hour, just looking at the HAM3 watchdog periodically is not sufficient to know if saturations have occurred.  If one wants to know if the platform has seen sensor saturations, trend:

H1:ISI-HAM3_WD_CPS_SAT_COUNT and

H1:ISI-HAM3_WD_CPS_SAT_SINCE_RESTART

The former channel will be reset upon WD trip, the latter channel will accumulate the saturation.