Reports until 12:40, Tuesday 20 January 2015
H1 AOS
filiberto.clara@LIGO.ORG - posted 12:40, Tuesday 20 January 2015 - last comment - 13:46, Tuesday 20 January 2015(16157)
ETMX Baffle Photodiode - Amplifier Chassis 
Pulled ETMX photodiode amplifier chassis from EX. Keita reported voltage outputs seemed to be reversed (negative output). Found the wiring for the outputs of the amplifier box wired wrong. Corrected wiring and placed unit back in rack. Patrick had to restart the Beckhoff computer for EX.

D1301017 SN S1400075
Comments related to this report
keita.kawabe@LIGO.ORG - 13:46, Tuesday 20 January 2015 (16160)
Link

ETMX Baffle PDs now output positive voltage.

Gains were set to 0dB instead of 60.

Nominal currents for these (H1:AOS-ETMX_BAFFLEPD_1_NOMINAL and H1:AOS-ETMX_BAFFLEPD_4_NOMINAL) were set to 0.1mA instead of 0.

"powerOk" for ITMX in ditherAlign.py was set to 0.2 instead of 0.4.

After these changes the ditherAlign.py works for ITMX.