jameson.rollins@LIGO.ORG - posted 23:34, Thursday 22 May 2014 - last comment - 06:27, Friday 23 May 2014(12035)
Locking activity tripping SEI watchdogs
This is really the next big watchdog issue: regular IFO commissioning activity is causing the SEI watchdogs to trip. We need to investigate the issue further, but what we definitely know is that when we lose the ALS locks the ETM ISI watchdogs trip. It's usually just in stage 2 actuators, but also sometimes both ISI stages and more than just the actuators. This is reducing efficiency during commissioning, so we need to back off on the saturation count for the SEI watchdogs some more.
Do you know why the SUS watchdogs don't trip before the ISI watchdogs? I would imagine that the transient sent when we lose the lock would trip SUS first.