Reports until 10:34, Monday 31 October 2016
H1 SUS (DetChar)
jenne.driggers@LIGO.ORG - posted 10:34, Monday 31 October 2016 (31028)
DetChar request: Look at IM3 actuation

To recover our alignment after the PSL work that happened last week, IM3 was moved pretty significantly (alog 30910).  For the last week or so, it has been regularly running extremely close to the edge of the actuation range for LL and UR.  The MasterOut channels are around 126,000 counts, but the front end model outputs are above 130,000.  It would be great if someone from DetChar could have a look and make sure that we're not causing ourselves trouble by operating so close to the DAC edge here.  Note that the VoltMon channels for these two OSEMs are totally railed, so they will not be useful for looking at - I don't know if those are a regular part of the detchar scripts.