User name Jaideep Singh
Log entry time 14:43:29 on July 3,2001
Entry number 65603
keyword=Target Half Wave Plate ControlInitially the target halfwave plate was at the "Out" position. Attempted to move the waveplates to the "In" position. The waveplates went past the "In" position all the to the edge of the platform and the motor had to be stopped manually using the "HALT" button. (When at the edge the platform, the waveplates kept moving back and forth over a small distance near the edge until stopped.) The motor position dislpayed < -1,800,000. Xiachao and I moved the waveplates to the "IN" position manually. The motor position displayed now is -1770324. The current hypothesis is that the "Go" button was mistakenly hit twice.
FIGURE 1
