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User name riordan
Log entry time 23:18:03 on May 6,2010
Entry number 321290
keyword=Techs: RQ1 Regulation off and Current is Stable (for now)Right Q1 current apparantly was fluctuating dramatically. I've turned off regulation, but the set point does not give the desired readback. I'm guessing this problem is related to the bad DAC bit found back Jack a couple days ago, though I'm not sure why it's manifesting itself right now.
I've turned off regulation and found a setpoint that gives the desired readback and field setting. Setting to 601.5 A gives ~582 A, which is what we need.
This should be OK for our experiment, at least for running until we can get in and replace the DAC. Hopefully things do not get worse.
FIGURE 1
FIGURE 2
