This morning, the interlock triggered in VS11040 and VS11050, following gate valves were closed: V11050G; 60G; 70G and V11220G. 

ION pumps P11190I and P11180I got an spike from 2.87e-6 mbar up to 1.95e-6 mbar, that would have hit the interlock. To two next ION pumps got an smaller spike (P11170I--> 8.75e-8mbar) + (P11160I--> 5.75e-9mbar).

That means that the ION pump next to the BLM triggered the interlock. The value rose slowly until it reached the threshold value. At XGM the current selected gas is Xenon.

We already had a similar event: https://in.xfel.eu/elog/Vacuum-OCD/239 on 18 JAN 2024.

VAC:OK could be restored by opening all valves. We need to keep an eye on this.