 Fri Sep 26 09:50:18 2008, Doug Preddy, Quench Recovery, started flow in parallel cold return mode
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Sun Oct 5 11:12:48 2008, Doug Preddy, Normal Running, M9B:V1 interlocks and a IOC crash
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| M9A:V1 was removed this shutdown. It's "in" limit is required to allow M9B:V1 to be opened. I have bypassed the interlocks on M9B:V1 until the M9A:V1 limits can be jumpered. Don Dale and George Clark have been informed.
Also an IOC crashed so the data pages were not updating. Evgeny rebooted the IOC. All is now fixed. |
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Sun Oct 5 18:54:27 2008, Doug Preddy, Quench Recovery, Solenoid Quench ~16:30
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| Restarted compressor and flow to coldbox by 18:30 |
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Wed Nov 5 16:33:52 2008, Doug Preddy, Normal Running, sbplc light out
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| On main menu the sbplc light was black. All vacuum systems looked good, but there was no control of any device. Jane reset the IOC. It is hosted by sundance. |
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Wed Dec 10 15:41:04 2008, Doug Preddy, Shut Down, shuttting down solenoid
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| shuttting down solenoid for winter shutdown. |
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Wed Dec 10 15:44:58 2008, Doug Preddy, Maintenance, Repairs to solenoid power supply
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| Klaus and company pulled the ramp rate card out of the solenoid power supply. Operational checks were done and the rate switch was cleaned. The card was reinserted and the ramp rate was checked. The power supply seems to ramp at a proper rate in all positions. ***Note*** The output voltage of the power supply is proportional to the ramp rate. The faster the ramp rate the higher the output voltage. |
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Wed May 27 08:06:00 2009, Doug Preddy, Quench Recovery, Solenoid quenched at 5:00
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The solenoid quenched at 5:00 this morning due to power lead temps. The temps started oscillating about 10 minutes before the trip. The compressor and the cold box stayed on. The flow to the solenoid was stopped.
The solenoid flow was started in parallel cold return at ~7:20. |
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Wed May 27 13:37:22 2009, Doug Preddy, Quench Recovery, switch to series mode
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Switched to series mode at ~11:00. Built liquid to 55% by 13:30. Started flow to the power leads. |
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Wed May 27 15:01:34 2009, Doug Preddy, Quench Recovery, power leads
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Power leads are cold. There is still a small ripple. The power supply can be ramped up as soon as the ripples die out. |
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Fri Jul 10 00:34:03 2009, Doug Preddy, Quench Recovery, solewnoid quench due to power bump
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Solenoid quench due to power bump caused by an airplane crash in Richmond at ~ 22:00. Compressor off. Water pump off. Restarted compressor at ~ 11:30. Cooling solenoid in parallel cold return mode by 12:15. |
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Fri Jul 10 01:10:59 2009, Doug Preddy, Quench Recovery, switch to parallel warm return
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Tue Jul 14 15:28:36 2009, Doug Preddy, Quench Recovery, Solenoid ramped up
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The solenoid is cold and I have started to ramp up the power supply. Some slight ripples in the power leads, but they are dieing out. Liquid level is a lot more stable this time. |
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Mon Oct 5 11:54:58 2009, Doug Preddy, Normal Running, Switched TIC121 into auto mode
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Wed Mar 24 08:30:33 2010, Doug Preddy, Start Up, Start up
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Compressor started yesterday afternoon. Pumping out solenoid overnight. Cold box vacuum good. circulating helium to solenoid in Parallel warm mode, CV142 open. Purifier running. |
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Thu Apr 1 11:57:55 2010, Doug Preddy, Start Up, started flow to power leads
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Solenoid cold. Buffer tank pressure ~3psi, so Kevin will add a bottle of helium. Started flow to power leads at 11:45 |
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Fri Apr 9 07:34:55 2010, Doug Preddy, Quench Recovery, switched to parallel cold return
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Switched to parallel cold return at about 7:30 this morning
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Fri Apr 9 16:07:28 2010, Doug Preddy, Start Up, flow to power leads started
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Mon May 3 07:49:54 2010, Doug Preddy, Quench Recovery, Solenoid quench Saturday
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Solenoid quenched at ~13:30 Saturday. Kevin came in later in the day to recover it. System was in all around mode, no flow to solenoid. Discharge pressure went over 12 bar while starting flow and tripped the compresswor. After restart solenoid was cooling well.
Monday morning 7:30 I opened CV155 to increase the cooldown rate. |
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Thu May 13 07:39:55 2010, Doug Preddy, Quench Recovery, solenoid quench last night
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Solenoid quenched on power lead temps last evening. I am recovering it in parallel cold return mode. C12~60K C1~50K. |
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Thu May 13 14:37:13 2010, Doug Preddy, Quench Recovery, switching to series mode.
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