MPSMinutes 20210520 - Revision history

Lennarz: /* Ehall work */

2021-05-25T17:22:56Z

Ehall work

← Older revision		Revision as of 17:22, 25 May 2021
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	*Spare modules available? 12-16 channel modules purchase for ARIEL?		*Spare modules available? 12-16 channel modules purchase for ARIEL?

	= ~~Ehall~~ work =		= E-hall work =

	*AL, MA finished re-routing high-energy cables and HH shortened and terminated cables on Tuesday, which took about 6hrs. Labels were attached		*AL, MA finished re-routing high-energy cables and HH shortened and terminated cables on Tuesday, which took about 6hrs. Labels were attached

Lennarz: /* LED calibration */

2021-05-25T17:22:45Z

LED calibration

← Older revision		Revision as of 17:22, 25 May 2021
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	*AL to write sequence of operation as base for EPICS implementation.		*AL to write sequence of operation as base for EPICS implementation.
	*Parallel ramp up of all LEDs with PMTs at voltage		*Parallel ramp up of all LEDs with PMTs at voltage
			*Compare detector response to reference and set tolerance.
			*Make LED output vs detector response graphs

	= AOB =		= AOB =
	*RN: Are there blanking panels on MPS crate? -> Does not seem to be the case. We should get some.		*RN: Are there blanking panels on MPS crate? -> Does not seem to be the case. We should get some.

Lennarz: /* AOB */

2021-05-25T17:21:16Z

AOB

← Older revision		Revision as of 17:21, 25 May 2021
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	= AOB =		= AOB =
			*RN: Are there blanking panels on MPS crate? -> Does not seem to be the case. We should get some.

Lennarz: /* BLM HV trip (iseg) */

2021-05-25T17:20:40Z

BLM HV trip (iseg)

← Older revision		Revision as of 17:20, 25 May 2021
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	= BLM HV trip (iseg) =		= BLM HV trip (iseg) =
			*Issue with BLM tripping during post-mortem test was never resolved.
			*No repsonse from iseg
			*We can try swapping the boards and see if trip still happens
			*Swap boards and addresses, then re-test
			*HH: Is there dial option on modules?
			*MR/AD: This needs change in IOC shell. HH to confirm.
			*Spare modules available? 12-16 channel modules purchase for ARIEL?

	= Ehall work =		= Ehall work =

Lennarz: /* Second stage trip */

2021-05-25T17:17:13Z

Second stage trip

← Older revision		Revision as of 17:17, 25 May 2021
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	*FSD goes to RF switch AND event receiver.		*FSD goes to RF switch AND event receiver.
	*After stage 1 trip we should add a timer (~15us wait should be sufficient), i.e., if no response is received, system should trip.		*After stage 1 trip we should add a timer (~15us wait should be sufficient), i.e., if no response is received, system should trip.

			*These 2 problems are the last issues HH needs to resolve, then upgrade should be finished.

	= BLM HV trip (iseg) =		= BLM HV trip (iseg) =

Lennarz: /* Second stage trip */

2021-05-25T17:16:21Z

Second stage trip

← Older revision		Revision as of 17:16, 25 May 2021
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	= Second stage trip =		= Second stage trip =
			*HH fixed issue with dumping the data
			*Question regarding the following scenario: If we are running normally and someone hits the stop button for analysis. When the trip happens, the stop is bypassed. -> We should clear when jumping to stage 2.
			*Logistics: Do we scan the status register all the time? This would be required to not get out of synch.
			*RN: This is Intractable 2 masters problem as bit can be set by EPICS or firmware.
			*EPICS should reset bit as soon as status change is detected?
			*MR: We should be constantly scanning already.

			*Second failure scenario for which response needs clarification: If we get a trip condition and everything is connected, however, the FSD or timing system does not send a trip? What if external trip signal is not send?
			*Then we would not go to stage 2 and we do not trip HV
			*MR: This scenario could happen if the cable between FSD breakout board going into event receiver is disconnected or malfunctioning.
			*FSD goes to RF switch AND event receiver.
			*After stage 1 trip we should add a timer (~15us wait should be sufficient), i.e., if no response is received, system should trip.

	= BLM HV trip (iseg) =		= BLM HV trip (iseg) =

Lennarz: /* Ehall work */

2021-05-25T17:05:47Z

Ehall work

← Older revision		Revision as of 17:05, 25 May 2021
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	= Ehall work =		= Ehall work =

			*AL, MA finished re-routing high-energy cables and HH shortened and terminated cables on Tuesday, which took about 6hrs. Labels were attached
			*AL to attach new labels on roof. Also for LEDs. AL to send HH list with required labels after meeting.
			*MA, AL to finish Ar connections next Tuesday and get leak detector from Rick.

	= Fibre =		= Fibre =

Lennarz: /* Fibre */

2021-05-25T17:02:55Z

Fibre

← Older revision		Revision as of 17:02, 25 May 2021
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	= Fibre =		= Fibre =
			*MA to do baseline tests next week

	= LED calibration =		= LED calibration =

Lennarz: Created page with "Present: MA, HH, KL, MR, RN, RC, AD, AL (recorder) = Second stage trip = = BLM HV trip (iseg) = = Ehall work = = Fibre = = LED calibration = *AL to write sequence of oper..."

2021-05-25T17:01:31Z

Created page with "Present: MA, HH, KL, MR, RN, RC, AD, AL (recorder) = Second stage trip = = BLM HV trip (iseg) = = Ehall work = = Fibre = = LED calibration = *AL to write sequence of oper..."

New page

Present: MA, HH, KL, MR, RN, RC, AD, AL (recorder)

= Second stage trip =

= BLM HV trip (iseg) =

= Ehall work =

= Fibre =

= LED calibration =
*AL to write sequence of operation as base for EPICS implementation.
*Parallel ramp up of all LEDs with PMTs at voltage

= AOB =