Reports until 13:41, Tuesday 27 November 2012
H1 SUS
betsy.weaver@LIGO.ORG - posted 13:41, Tuesday 27 November 2012 - last comment - 07:11, Wednesday 28 November 2012(4771)
H1 ITMy is plugged into BSC1 and hangin'

I plugged in all 6 ITMy 25-pin connectors to the F3 feedthru flange on the BSC1 chamber.  Richard has been checking out the in-air connections/electronics.  Currently the PUM stage signals do not look healthy - he is chasing.  As well, Dave is making a burt restore file for this guy since he was blank - a copy/paste from the ETM.  Kissel is going to check it/tweek it later.

I've released the suspension so the speed dials should show normal swing and we can attempt damping as soon as everyone else is finished.  That said, SEI is heading back out to do trim masses upstairs this afternoon.

Comments related to this report
richard.mccarthy@LIGO.ORG - 07:11, Wednesday 28 November 2012 (4782)
Link 

The PUM stage was railing at -32000 counts so investigated the installation.  It appears that there is a subtle problem with the Satellite box for the PEM that is causing this.  I have swapped it out and the signals appear believable now.  The problem must be related to the -10 volt bias as the unit functions in photovoltaic mode but not in the A OSEM set up.