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Reports until 11:02, Friday 12 September 2014
H1 SEI
hugh.radkins@LIGO.ORG - posted 11:02, Friday 12 September 2014 (13906)
WHAMs 4 & 5 HEPIs tripped just like WHAMs 2 & 3 few days ago.

Saw that these HEPIs were tripped.  Greened watchedogs, Guardian (bless you) did the work.  Saw there was no drive at DAC OUTPUT (right end of medm.)   CDS overview shows red under WD of H1IOPSEIH45:  this subscreen (H1IOPSEIH45_GDC_TP) shows red under DK.  Strangely now though, even with HEPI tripped, the H1IOPSEIH45 is the only red on the CDS overview screen.  The H1HPI & ISIs show green for HAM4 & 5.  Something is not consistant.  I just greened up the CDS overview for HAM6 HPI by untriggering the HPI watchdog.  I'm sure Dave has this wired reasonably, but maybe too complexly for me to untangle.

Okay, maybe unraveled a bit for me.  I just tripped the HAM6 HEPI again but the CDS overview did not go red until the DACKILL went red on the HPI Watchdog screen; just confirmed this while untripping .  The HAM4 & 5 DACKILLs (on the ISI screens) are not red.

 

Bottom line--HAM 4 & 5 are not under SEI control due to an unresetable DK like HAM2 & 3.

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