About run 17550

ORSINI MASSIMO (Massimo.Orsini@lngs.infn.it)
Tue, 4 May 1999 14:41:50 +0200

Hi guys,

last night, during run 17550 which lasted 3.2 hours, the uvax1 dead time rose
abnormally and and the run 17551 crashed.
This morning we found out that:

1) The uvax1 VME crate failed;
2) a PISA power supply on SM1 failed;
3) The WFD +6 voltage was missing;

After some trouble we started a new run (17554) without uVAx1 and I fixed the
WFD power supply which actually had the output cables completely unscrewed.
Notice that in the past, the WFD +6 power supply got the same problem that we
never solved till this morning....I guess.
Now, uVAX1 is back in taking data.

A presto,

Massimo