Reports until 15:57, Wednesday 10 September 2025
H1 CDS
filiberto.clara@LIGO.ORG - posted 15:57, Wednesday 10 September 2025 (86839)
CDS EE Power Outage Notes

1. Both corner station HV interlocks tripped. Reset. The Fast Shutter, HAM6 PZT, and ITM ESD high voltage enabled.
2. PSL and SQZ high voltage enabled
3. Safety Laser Interlock System tripped, Reset. Lasers enabled.
4. ETMX ESD HV interlock tripped. Reset, HV enabled
5. ETMY ESD HV was found powered on
6. Found 2 ETMY SEI ISI Coil Drivers with overtemp errors. Reset button on front panel cleared all faults. Need to check all ECRs have been applied to chassis.
7. Jim reported issues bringing back ETMX HEPI. Normal power OFF/ON did not bring main pump controller panel online. Asked Patrick to check the Beckhoff software, no issues found. Unit eventually powered on when the ON button was activated during troubleshooting.
8. EY Pulizzi was found unresponsive and power cycled. Erik restarted code. This enabled power to WIFI and ITMY camera

Images attached to this report