Reports until 15:41, Tuesday 19 July 2011
H2 SUS
robert.lane@LIGO.ORG - posted 15:41, Tuesday 19 July 2011 (1071)
"Lack" of minus signs Anti-Aliasing and Anti-Imaging Chassis
During the initial sign checking and electronics shake-down for H2 ITMY.

When we first got ITMY hooked up we observed an apparent Sign shift for the input signals "H2:SUS-ITMY_M0_OSEMINF_F1_IN1" etc.

During my sign check, offset sign check, etc.: All OSEM Basis and Euler Basis offsets were inversed. I requested a positive offset, but observed a negative offset in the suspension. 

I inverted all OSEMOUTF_GAINS for M0 and R0. Ran through the sign and initialization checks in the beginning of the metal-build testing procedure and confirmed all was well.