Reports until 15:46, Tuesday 07 July 2026
H1 CDS (SPI)
ryan.short@LIGO.ORG - posted 15:46, Tuesday 07 July 2026 (90930)
Tested 45ft SPI Shutter Cable - Working

F. Clara, R. Short

The shutter on the PSL table that blocks the SPI pickoff beam is currently being run with a temporary controller outside the PSL enclosure (see alog90490). This will eventually be connected to the shutter controller on top of IOT1R (the "JAC table") which is also controlling the shutter on that table, but this means running a 45ft cable from the controller box into the PSL enclosure and to the SPI shutter, the longest of these shutter cables we would use, so Fil wanted to test it. We took a spare shutter and the 45ft cable out to IOT1R and plugged them into the controller box. I guessed that the channel that would run this shutter was shutter N since the JAC shutter was M, and I was correct. I was able to successfully open and close the shutter with the long cable, so Fil will run it from the table to the PSL enclosure, where at a later date we will feed it through and connect it to the shutter on-table. Shutter N is still labeled as "Spare" and I was unable to change it, so I will need to ask for assistance changing the name in Beckhoff-space.