ID |
Date |
Author |
Operational Mode |
Subject |
Text |
|
175
|
Thu Oct 26 14:14:57 2006 |
Doug Preddy | Quench Recovery | power lead quench | solenoid tripped on power lead temp. I was
here and caught it. System
cooling. |
|
176
|
Tue Oct 31 03:52:29 2006 |
Doug Preddy | Quench Recovery | power lead quench at 2:30 this morning | Compressor still on. Starting flow to solenoid |
|
177
|
Tue Oct 31 05:36:14 2006 |
Doug Preddy | Quench Recovery | switch to series mode | |
|
178
|
Tue Oct 31 08:37:34 2006 |
Doug Preddy | Quench Recovery | Energizing solenoid | |
|
179
|
Fri Nov 3 12:09:51 2006 |
Doug Preddy | Normal Running | Fine tuning | The power lead temperatures have been climbing
at a rate of ~ 0.02K very 8
hours. The negative lead started to show |
|
180
|
Tue Nov 7 10:35:32 2006 |
Doug Preddy | Normal Running | Maintenance day | I ramped down the solenoid power suplly and
shut off flow to the power
leads. I will allow them to warm up and (hopefully) |
|
181
|
Wed Nov 15 11:09:28 2006 |
Doug Preddy | Quench Recovery | Compressor tripped off | Compressor tripped this morning at ~8:45.
I restarted the compressor, but
turbine 1 would not spin up. I let it warm |
|
182
|
Wed Nov 15 13:56:00 2006 |
Doug Preddy | Quench Recovery | switch to series mode | |
|
184
|
Tue Nov 28 10:32:04 2006 |
Doug Preddy | Quench Recovery | recovering after looong power outage | The power has been out for about 24 hours.
Recovering coldbox, solenoid and
beamline vacuum.PLC is down for the vacuum |
|
185
|
Fri Jan 26 15:10:37 2007 |
Doug Preddy | Maintenance | new control computer installed | I have installed a new control computer at
the M9 solenoid control panel |
|
186
|
Mon Mar 5 14:59:41 2007 |
Doug Preddy | Maintenance | Password | On the weekend someone used this log to send
spam messages. I have
installed a password for the write privilege. |
|
187
|
Thu Apr 19 15:18:25 2007 |
Doug Preddy | Start Up | preparing to start the refrigerator | Starting the vacuum systems in the coldbox
and solenoid. |
|
188
|
Fri Apr 20 12:15:12 2007 |
Doug Preddy | Start Up | remote PLC switch | I could not control the vacuum devices using
EPICS. The buttons could be
pushed, but nothing would respond. The PLC |
|
189
|
Mon Apr 23 16:31:02 2007 |
Doug Preddy | Start Up | Started compressor | Startewd compressor and purifer today. |
|
190
|
Tue Apr 24 10:21:49 2007 |
Doug Preddy | Start Up | Started flow to turbines | Started flow to turbines at about 10:00 in
parallel warm mode. |
|
191
|
Fri Apr 27 10:10:07 2007 |
Doug Preddy | Normal Running | Solenoid Cold | Solenoid cold, power leads cold. Alarm handler
started. |
|
193
|
Fri Apr 27 10:32:07 2007 |
Doug Preddy | Quench Recovery | Reset quench relay logic box | The quench relay logic controller was not
functioning correctly. It showed
a "Trip" light and no other lights. I cycled |
|
194
|
Mon Apr 30 09:30:26 2007 |
Doug Preddy | Normal Running | problems over weekend | The PLC Limit switch power supply was tripped
off on Saturday. I came in
and reset it and restarted all the vacuum |
|
195
|
Wed May 2 16:28:16 2007 |
Doug Preddy | Normal Running | Energizing solenoid to 500 amps | Power supply initially would not ramp up.
I exercised the rate control
selector switch and found that the power |
|
196
|
Wed May 16 10:02:35 2007 |
Doug Preddy | Maintenance | warming up power leads | Power lead temps have been slowly increasing
over the last wekk. I ramped
the solenoid down and am warming the power |
|