Reports until 13:57, Thursday 20 March 2014
H1 SUS
arnaud.pele@LIGO.ORG - posted 13:57, Thursday 20 March 2014 - last comment - 15:36, Thursday 20 March 2014(10898)
ETMX L1 OSEMs

[Richard Arnaud]

This morning while taking measurements on UIM ETMX, I saw all four L1 osems readback were zeros. Looking at the past data, signal stopped at ~10:51 am PT. Richard and I went to the end station, and saw that the UIM coil driver switch was mysteriously turned off... After turning it back on, sensing and actuating now work again.

Comments related to this report
arnaud.pele@LIGO.ORG - 15:36, Thursday 20 March 2014 (10905)
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Richard went back to the end station after lunch and found the hardware switch of the UIM driver turned off again, whereas nobody physically turned it off.