david.barker@LIGO.ORG - posted 15:06, Thursday 07 September 2023 - last comment - 15:20, Friday 08 September 2023(72743)
FMCS cell phone alarms bypassed
While FMCS work is ongoing, I have bypassed the cell-phone alarms for the channels shown below:
Bypass will expire:
Fri 08 Sep 2023 03:06:06 PM PDT
For channel(s):
H0:FMC-CS_CY_H2O_PUMPSTAT
H0:FMC-CS_CY_H2O_SUP_DEGF
H0:FMC-CS_FIRE_PUMP_1
H0:FMC-CS_FIRE_PUMP_2
H0:FMC-CS_WS_RO_ALARM
H0:FMC-EX_CY_H2O_PUMPSTAT
H0:FMC-EX_CY_H2O_SUP_DEGF
H0:FMC-EY_CY_H2O_PUMPSTAT
H0:FMC-EY_CY_H2O_SUP_DEGF
All the FMCS EPICS channels have been static since around 11:00 this morning. The attached plot shows a representative channel from CS and each out-building showing they stopped updating between 10:47 and 11:06. Interestingly most of the EPICS channels did not go invalid, but some did. This explains the mixture of green/white values on the FMCS MEDMs seen this afternoon. Jonathan and Patrick restarted the FMCS IOC at 15:01, at which point all the EPICS channels went to VAL=0, SEVR=Invalid.
At the time of writing, the corner station chiller-yard and wood-shop FMCS channels continue to be good. Therefore I have un-bypassed the critical fire-pump alarms for the weekend.
The current cell-phone alarm bypass list is now
Bypass will expire:
Mon 11 Sep 2023 03:16:29 PM PDT
For channel(s):
H0:FMC-CS_CY_H2O_PUMPSTAT
H0:FMC-CS_CY_H2O_SUP_DEGF
H0:FMC-CS_WS_RO_ALARM
H0:FMC-EX_CY_H2O_PUMPSTAT
H0:FMC-EX_CY_H2O_SUP_DEGF
H0:FMC-EY_CY_H2O_PUMPSTAT
H0:FMC-EY_CY_H2O_SUP_DEGF