Reports until 10:42, Monday 21 March 2016
H1 CDS (CDS, PSL, TCS)
patrick.thomas@LIGO.ORG - posted 10:42, Monday 21 March 2016 - last comment - 11:02, Monday 21 March 2016(26157)
rotation stage beckhoff chassis powercycled
Kiwamu, Patrick

Kiwamu said that the TCS X power was changing for the same angle requested and readback by the rotation stage. We powercycled the rotation stage chassis in the CER and did a search for home for the TCSX, TCSY and PSL rotation stages that it controls. Kiwamu says it is now workable, but from what he showed me it still appears to be giving significantly different powers for the same angle.
Comments related to this report
kiwamu.izumi@LIGO.ORG - 11:02, Monday 21 March 2016 (26159)

Here is a screenshot showing the issue. I requested the same angle several times which moved the rotation stage to different angles and also power changed by roughly +/- 50 mW.

Images attached to this comment