This is a test to make sure the e-mail works.
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.
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.
Power lead temps rippling and increasing. I asked an operator to cycle HIC142. This seems to have fixed the problem (for now).
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.
switched to parallel cold return earlier this morning. Vacuum is 5 x 10-5.
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.
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.
Power lead temps have been slowly increasing over the last wekk. I ramped the solenoid down and am warming the power leads to >80k.
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.
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.
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.
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
Solenoid cold, power leads cold. Alarm handler started.
Started flow to turbines at about 10:00 in parallel warm mode.
Startewd compressor and purifer today.
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.
Starting the vacuum systems in the coldbox and solenoid.