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  OPERATION-2024 logbook, Contact: F.Wolff-Fabris, A.Galler, H.Sinn  Not logged in ELOG logo
Message ID: 131     Entry time: 24 Jul 2024, 10:26
Author: Harald Sinn 
Group: PRC 
Subject: Issue 

In SASE2 undualtor cell 10 has issues. Suren K. will do a ZZ at 11:30 to fix it (if possible). Estimated duration: 1-3 hours. 

Update 12:30: The problem is more severe than anticipated. Suren needs to get a replacement driver from the lab and then go back into the tunnel at about 14:00 

In principle, the beam could be use dby HED until 14:00

Update 13:30: Beam was not put back, because energizing and de-energizing the magnets would take too much time. Whenever Suren is ready, he will go back into XTD1 and try to fix the problem. 

Udate 17:30: Suren and Mikhail could do the repair and finish now th zz. A hardware piece (motor driver) had to be exchanged and it turned out that the Beckhoff software on it was outdated. To get the required feedback from Beckhoff took considerable time, but now everything looks good.  

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