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  Joint Operation and Readiness Logbook, Contact: T.Haas, A. Violante, G. Wellenreuther  Not logged in ELOG logo
Message ID: 198     Entry time: 02 May 2017, 22:27
Author: Jan Grünert 
Location: XTD2 
Severity: Problem 
Subject: XTD9 vacuum now ok, but not in XTD2: turbos on XGM@XTD2 still in ERROR 

Wajid and Leonce from CAS have managed to get us the karabo controls back.
We have now put the XGM@XTD9 back into normal vacuum operation, and opened finally the vatterfly valves, this one is ok, and we checked also the entire XTD9 gas section to be ok.

However, in XGM@XTD2, both XGM turbo pumps are still in ERROR and we cannot get them out - it is an error on the PLC level ? It's something we have not seen before.
The vacuum is at a controlled level of 5E-7mbar thanks to interlock-closed vatterflys.

Request to AE: tomorrow morning, we must remotely get the two turbos out of error (PLC client ?), otherwise we have to request a ZZ access to the tunnel XTD2 for local intervention on the turbo pump controllers.

Request to the AE+CAS group leaders: apparently we need to organize OCD also during nights on weekdays.

 

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