Reports until 10:29, Monday 22 April 2024
H1 ISC (SEI)
jeffrey.kissel@LIGO.ORG - posted 10:29, Monday 22 April 2024 (77326)
h1asc Model Prep: Bug Fix to HAM1 FF Infrastructure to add Test Points to DC Centering Summation Point
J. Kissel, J. Warner
WP 11821
ECR E2200226
IIET 12161

As Jim and others are starting to build up a good MEDM interface and otherwise use the rest of the HAM1 TT L4C feed-forward infrastructure I installed several moons ago (see 63115 and 63300), we've discovered that I overlooked adding useful test points at the summation point of the DC centering DOFS DC1 and DC2. These "FFHAM1_IN" and "FFTRGT_IN" fast test points, and corresponding EPICs readbacks were added to all the other summation points (CHARD, PRC1, REFLWFS_RF9_I, etc.), I just missed it for the DC centering loops.

Attached are screenshots after they're now in place.

We'll install these by recompiling, installing, and restarting the h1asc.mdl front-end model tomorrrow during maintenance.
Images attached to this report