1. Unlocked the Expert Lock.
2. Clicked the Sweep Setup.
3. Did nothing in the sweep setup window, then Exit.
4. (Maybe) Someone remotely controlled this computer using VNC.
Then the VI got locked. Then I tried to disconnected the VNC clients and restart it. NO use. So I asked Franco to stop current run right after one flip finished.
I did the following to restart the auto spin flip VI:
1. Stopped the VI
2. Ran the VI
3. Input the sweep settings upon programs request
4. In Laser Pol. Ctrl panel, rotated both 0338 and 1474 Q-wave plate to Down position (follwing previous spin state).
5. Got an error of "limit switch check failed for device 1474"
6. Did a manual sweep (55.5%). No errors this time
7. In Laser Pol. Ctrl panel, did automatic calibrations once to make sure the Q-wave plates are in right place.
8. Move 0338 and 1474 Q-wave plates to UP states.
9. Did another manual sweep (56.9%), and start auto flip sequence.
10. Started a production run.
A copy of this log entry has been emailed to: jpchen@jlab.org, jinhuang@jlab.org