M9sol Logbooks Solenoid Daily log
  Solenoid logbook, Page 5 of 15  ELOG logo
New entries since:Wed Dec 31 16:00:00 1969
ID Datedown Author Operational Mode Subject
  206   Wed Jul 4 11:13:12 2007 Doug PreddyQuench Recoverytest
This is a test to make sure the e-mail works.
  205   Sun Jul 1 16:09:37 2007 Doug PreddyNormal RunningM9B:DP2 tripped off
Diffusion pump tripped off and vacuum (and power lead temps) going up. I 
had an experimentor cycle HIC 142 at 4:15 this morning. When I got in 
today I restarted the pump and it is back to 6.0 x 10-7. Power lead temps 
also are going down.
  204   Tue Jun 19 21:15:41 2007 Doug PreddyQuench RecoveryToday's quench
power lead temps caused a quench at 8:30 this morning. Recovery of system 
and flow to solenoid was started by 11:00. Solenoid was switched to series 
cold at 3:00. Solenoid and power leads were cold at ~6:30. power supply 
was to be energized by experimenters.
  203   Sat Jun 16 15:05:03 2007 Doug PreddyNormal RunningSolenoid power lead temp problem
Power lead temps rippling and increasing. I asked an operator to cycle 
HIC142. This seems to have fixed the problem (for now).
  202   Thu Jun 14 00:10:10 2007 Doug PreddyQuench Recoveryrecovering from earlier quench
Solenoid quenched on power lead temperature last night at about 6:00. I 
restarted flow to the solenoid in parallel cold return. Switched to series 
mode and am building liquid. 
  201   Tue Jun 12 12:48:25 2007 Doug PreddyMaintenanceadded one bottle UHP helium to system
  200   Thu May 31 11:51:49 2007 Doug PreddyQuench RecoverySwitched to series mode
  199   Thu May 31 07:11:05 2007 Doug PreddyQuench Recoveryswitched to parallel cold return
switched to parallel cold return earlier this morning. Vacuum is 5 x 10-5.
  198   Wed May 30 11:27:32 2007 Doug PreddyQuench RecoveryProblems recovering
Various start up problems :
MV51 stuck open. Finally got it closed by hitting the valve with a hammer.
Vacuum is bad in cold box as MV902 tripped closed.
Vacuum in solenoid has gone bad. Suspect boil off from inside solenoid. So 
far it is not recovering.
Previously T1 would not spin up - frozen.
  197   Wed May 30 08:38:38 2007 Doug PreddyQuench RecoverySolenoid quenched this morning
Solenoid quenched this morning on power lead temp (I believe).
I restarted it at ~7:00, but the capacity control for the compressor would 
not respond. I shut the system back down and checked as many relays as I 
could. I then restarted the system and it is now cooling. I will go 
through the wiring diagrams and see if I can locate the bad relay.
  196   Wed May 16 10:02:35 2007 Doug PreddyMaintenancewarming up power leads
Power lead temps have been slowly increasing over the last wekk. I ramped 
the solenoid down and am warming the power leads to >80k.
  195   Wed May 2 16:28:16 2007 Doug PreddyNormal RunningEnergizing solenoid to 500 amps
Power supply initially would not ramp up. I exercised the rate control 
selector switch and found that the power supply would ramp up at only the 
30 minute setting. It is ramping up at a rate of about 60 minutes.
  194   Mon Apr 30 09:30:26 2007 Doug PreddyNormal Runningproblems over weekend
The PLC Limit switch power supply was tripped off on Saturday. I came in 
and reset it and restarted all the vacuum systems that had tripped off. 
The power leads were found to be warming up. This morning they were at ~ 
45K. I stopped flow to the power leads and will allow them to warm up 
above 80K and then will recool them.
  193   Fri Apr 27 10:32:07 2007 Doug PreddyQuench RecoveryReset quench relay logic box
The quench relay logic controller was not functioning correctly. It showed 
a "Trip" light and no other lights. I cycled the power to the controller 
and it now seems to be working properly. This did cause a quench and I am 
now recovering the system.
  192   Fri Apr 27 10:16:44 2007 Kevin TrithardtQuench RecoveryTest
Don't Panic -- There was no quench. I am testing the e-log.
I have added Kevin's name and e-mail to the M9 e-log. He will be e-mailed 
when a quench recovery log is submitted. His name is also included in the 
Author's list. 
Thanks, Doug
  191   Fri Apr 27 10:10:07 2007 Doug PreddyNormal RunningSolenoid Cold
Solenoid cold, power leads cold. Alarm handler started.
  190   Tue Apr 24 10:21:49 2007 Doug PreddyStart UpStarted flow to turbines
Started flow to turbines at about 10:00 in parallel warm mode.
  189   Mon Apr 23 16:31:02 2007 Doug PreddyStart UpStarted compressor
Startewd compressor and purifer today.
  188   Fri Apr 20 12:15:12 2007 Doug PreddyStart Upremote PLC switch
I could not control the vacuum devices using EPICS. The buttons could be 
pushed, but nothing would respond. The PLC was in local mode. Thumbwheel 
to 100, push On/Open button to put it into remote mode.
  187   Thu Apr 19 15:18:25 2007 Doug PreddyStart Uppreparing to start the refrigerator
Starting the vacuum systems in the coldbox and solenoid.
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