D. Barker, S. Biscans, T. Hardwick, J. Kissel
WP 7994

Terra and Sebastien discovered that when we upgraded the SUS ETMX I/O chassis to use a 20-bit DAC (LHO aLOG 44905), and upgraded the h1iopsusex and h1susetmx models accordingly (LHO aLOG 44918), we forgot to upgrade the front-end model for parametric instability (PI) drive, i.e. h1susetmxpi, in order to recognize it.

This was a quick and easy change to the front-end model (see before vs. after screenshots below, plus the electronics wiring snippet from D1400177), which we installed immediately this morning. No DAC restart was needed, nor did it impact the IFO.

After the install, Terra and Seb have equally quickly confirmed that the drive system is now functional.

The updated simulink model has been committed to the userapps repo:
    /opt/rtcds/userapps/release/sus/h1/models/h1susetmxpi.mdl