ITF was in locking step acquisition; it failed several times.
An unlock event caused the WE LC loop opening (promptly dumped/closed).
After that the OMC_signals appeared in red status (DMS).
The Analog crate restarting (performed by V.Dattilo and I) was uneffective.
It was decisive thanks to J.Marque intervention.
Finally ITF reached a stable lock (Step12), Science mode (19h37LT) with Horizon ~ 11.0 Mpc.
MSC
Failed loop restoring (LT):
WE_LC (16h50)
Site Infra.Conditioning
WE building inlet cold water temperature (DMS alarmed red flag):
D.Soldani was informed, he checked all terminals (NE & WE) ACS system, reporting no fault found.
WE electronic conditioning board is probably in failure and F.Paoletti was informed.
Automation
Process restarting (LT):
AlpAli (15h58) [Lockinit waiting]
Pendings
rio21a rebooting (at next ITF unlock).
B1 phases retuning (Locking experts in day time).
An unlock event caused the WE LC loop opening (promptly dumped/closed).
After that the OMC_signals appeared in red status (DMS).
The Analog crate restarting (performed by V.Dattilo and I) was uneffective.
It was decisive thanks to J.Marque intervention.
Finally ITF reached a stable lock (Step12), Science mode (19h37LT) with Horizon ~ 11.0 Mpc.
MSC
Failed loop restoring (LT):
WE_LC (16h50)
Site Infra.Conditioning
WE building inlet cold water temperature (DMS alarmed red flag):
D.Soldani was informed, he checked all terminals (NE & WE) ACS system, reporting no fault found.
WE electronic conditioning board is probably in failure and F.Paoletti was informed.
Automation
Process restarting (LT):
AlpAli (15h58) [Lockinit waiting]
Pendings
rio21a rebooting (at next ITF unlock).
B1 phases retuning (Locking experts in day time).