MPS Minutes 20210603: Difference between revisions
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== Post Mortem and HV issue== | == Post Mortem and HV issue== | ||
*AL tested whether trip issues with BLMs and Post Mortem still persist after module address change | |||
*Turned out the trip still happened even with different detector channel. And this time voltages on all three modules for all biased PMTs tripped and it was not possible to ramp any of the other channels that were biased at the time of the trip up either. | |||
*How are modules affecting each other? | |||
*Do crate voltages drop? | |||
*Address space should be A16. Likely only the iseq modules are in A16 in that crate | |||
*MR, AD, naming should not cause these issues | |||
*Eric from Ops to power cycle crate today and AL to perform more tests, while Ricky and Mike monitor system | |||
==Second stage trip == | ==Second stage trip == | ||
Revision as of 20:15, 8 June 2021
Present: HH, MR, KL, AD, RC, RN, AL (recorder)
Post Mortem and HV issue
- AL tested whether trip issues with BLMs and Post Mortem still persist after module address change
- Turned out the trip still happened even with different detector channel. And this time voltages on all three modules for all biased PMTs tripped and it was not possible to ramp any of the other channels that were biased at the time of the trip up either.
- How are modules affecting each other?
- Do crate voltages drop?
- Address space should be A16. Likely only the iseq modules are in A16 in that crate
- MR, AD, naming should not cause these issues
- Eric from Ops to power cycle crate today and AL to perform more tests, while Ricky and Mike monitor system
Second stage trip
Fibre work
AOB
- Need two additional labels for ELBT:PMT1C:LED and ELBT:PMT1B:LED