With Hirata-san

• I suspected the IP H2 stepper motor was not working properly. I changed the cable at the driver from channel 1 to channel 4 and then it work well.
• I changed the script which makes possible to move the motor using the medm screen. See entry 8627.
• Following entry 7783 I moved the IP to the following position:
  • Longitudinal: -76 µm.
  • Transverse: 40 µm
  • Yaw: -4084 µrad.
• Using the BF fishing rod I was not able to move the keystone to zero. It goes as high as -265 µm.
• The SF fishing rod is not working. The keystone is currently at -1039 µm, whereas nominl is -721 µm.
• The F0 fishing rod works well. I put the keystone at nominal -542 µm.
• In order to bring the GAS filters and IP in position for TF measurement I followed this procedure:
  • Guardian: IM_DAMP_ENGAGED.
  • In the medm DCCTRL boxes for IP L,T and Y and GAS filters press HOLD OUTPUT.
  • Guardian: NEUTRAL
  • Turn TEST channels on.
• At the time if writing two IP TFs has already being measured. The current amount  of information suggests the IP is healthy.
• The xml files are in the following directory: /kagra/Dropbox/Subsystems/VIS/TypeBData/SR3/TF/Measurements/20190416/