Reports until 14:27, Tuesday 13 August 2024
H1 CDS
david.barker@LIGO.ORG - posted 14:27, Tuesday 13 August 2024 - last comment - 14:29, Tuesday 13 August 2024(79535)
CDS Maintenance Summary: Tuesday 13th August 2024

WP12034 h1calcs mitigation divide-by-zero

Louis, JoeB, Jeff, Dave:

A new h1calcs model was installed. DAQ restart was required:

++: slow channel H1:CAL-CS_TDEP_OPT_GAIN_EXPORT_CNT_PER_M added to the DAQ
--: slow channel H1:CAL-CS_TDEP_OPT_GAIN_SCALE removed from the DAQ 
 

WP12030 Test ITMY HWWD

Erik, Dave:

We tested the ITMY HWWD unit:

Disconnected the top satellite amp cable

Noted that the unit went into LED alarm state

Reconnected the cable

Verify LEDs are all green

One item of note, after the sat amp cable was disconnected the PD went RED for 1 second, then both PD and LED were green again for 1 second, then the LED went RED. From that point onwards LED=RED, PD=GREEN.

DAQ Restart

Dave:

The DAQ was restarted for the h1calcs model change.

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david.barker@LIGO.ORG - 14:29, Tuesday 13 August 2024 (79536)

Tue13Aug2024
LOC TIME HOSTNAME     MODEL/REBOOT
11:01:13 h1oaf0       h1calcs     <<< model restart


11:06:17 h1daqdc0     [DAQ] <<< 0-leg restart
11:06:30 h1daqfw0     [DAQ]
11:06:31 h1daqnds0    [DAQ]
11:06:31 h1daqtw0     [DAQ]
11:06:39 h1daqgds0    [DAQ]
11:07:32 h1daqgds0    [DAQ] <<< 2nd GDS0 restart needed


11:14:48 h1daqdc1     [DAQ] <<< 1-leg restart
11:14:59 h1daqfw1     [DAQ]
11:15:00 h1daqnds1    [DAQ]
11:15:00 h1daqtw1     [DAQ]
11:15:08 h1daqgds1    [DAQ]