Dave, Jonathan,

During earthquake down time we reworked systemd config controlling the CW injection.  We make sure that startup/shutdown of the injection enforces a 10s ramp time.  The system will try to auto start up to 4 time in 1/2 hour, with 5 minutes between attempts.

We changed the startup script to:

source /ligo/cdscfg/stdenv.sh
caput H1:CAL-INJ_CW_TRAMP 10.0
caput H1:CAL-INJ_CW_GAIN 0.0
sleep 11
/home/hinj/Details/bin/x_start_psinject monit start
caput H1:CAL-INJ_CW_GAIN 1.0


and the stop script to:

source /ligo/cdscfg/stdenv.sh
caput H1:CAL-INJ_CW_TRAMP 10.0
caput H1:CAL-INJ_CW_GAIN 0.0
sleep 11
/home/hinj/Details/bin/x_stop_psinject monit stop


As a side effect of how systemd monitors it, when the process crashes, the stop script gets run which ensure that on a failure the gain is forced down to 0 with a ramp. So whatever was left in the awg buffers gets ramped down.