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ID Date Authordown Operational Mode Subject
  261   Fri Sep 26 09:50:18 2008 Doug PreddyQuench Recoverystarted flow in parallel cold return mode
  262   Sun Oct 5 11:12:48 2008 Doug PreddyNormal RunningM9B:V1 interlocks and a IOC crash
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.
  263   Sun Oct 5 18:54:27 2008 Doug PreddyQuench RecoverySolenoid Quench ~16:30
Restarted compressor and flow to coldbox by 18:30
  264   Wed Nov 5 16:33:52 2008 Doug PreddyNormal Runningsbplc light out
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.
  265   Wed Dec 10 15:41:04 2008 Doug PreddyShut Downshuttting down solenoid
shuttting down solenoid for winter shutdown.
  266   Wed Dec 10 15:44:58 2008 Doug PreddyMaintenanceRepairs to solenoid power supply
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.
  267   Wed May 27 08:06:00 2009 Doug PreddyQuench RecoverySolenoid quenched at 5:00

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.

  268   Wed May 27 13:37:22 2009 Doug PreddyQuench Recoveryswitch to series mode

Switched to series mode at ~11:00. Built liquid to 55% by 13:30. Started flow to the power leads.

  269   Wed May 27 15:01:34 2009 Doug PreddyQuench Recoverypower leads

Power leads are cold. There is still a small ripple. The power supply can be ramped up as soon as the ripples die out.

  270   Fri Jul 10 00:34:03 2009 Doug PreddyQuench Recoverysolewnoid quench due to power bump

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.

  271   Fri Jul 10 01:10:59 2009 Doug PreddyQuench Recoveryswitch to parallel warm return
  272   Tue Jul 14 15:28:36 2009 Doug PreddyQuench RecoverySolenoid ramped up

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.

  273   Mon Oct 5 11:54:58 2009 Doug PreddyNormal RunningSwitched TIC121 into auto mode
  274   Wed Mar 24 08:30:33 2010 Doug PreddyStart UpStart up

Compressor started yesterday afternoon. Pumping out solenoid overnight. Cold box vacuum good. circulating helium to solenoid in Parallel warm mode, CV142 open. Purifier running.

  276   Thu Apr 1 11:57:55 2010 Doug PreddyStart Upstarted flow to power leads

Solenoid cold. Buffer tank pressure ~3psi, so Kevin will add a bottle of helium. Started flow to power leads at 11:45

  277   Fri Apr 9 07:34:55 2010 Doug PreddyQuench Recoveryswitched to parallel cold return

Switched to parallel cold return at about 7:30 this morning

 

  278   Fri Apr 9 16:07:28 2010 Doug PreddyStart Upflow to power leads started
  279   Mon May 3 07:49:54 2010 Doug PreddyQuench RecoverySolenoid quench Saturday

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.

  280   Thu May 13 07:39:55 2010 Doug PreddyQuench Recoverysolenoid quench last night

Solenoid quenched on power lead temps last evening. I am recovering it in parallel cold return mode. C12~60K C1~50K.

  281   Thu May 13 14:37:13 2010 Doug PreddyQuench Recoveryswitching to series mode.
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