Differences

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--- playground:quadcontrols [2012/03/16 14:53] – carter
+++ playground:quadcontrols [2026/06/25 16:12] (current) – external edit 127.0.0.1
@@ Line 23: / Line 23: @@
   * Momentarily depressing the right mouse button when in the main field of the plot will set the step resolution 1 level more coarse.
   * The **Save** button will save the current values of the QuadA and QuadB currents.  These values may be restored using the **Rest** button.  This is very useful when you try to improve beam tuning and find that you have only made things worse.  Remember to press the **Save** button before making changes to a previously good tune of the quad so you can **Rest** if you find you made things worse.
+  * Sometimes, when a large step in quad current is attempted too quickly, the power supply currents will start oscillating and will not respond to adjustments of the computer control.  If this happens, turn of the quad main power at the quad console, run the quad currents to 0 using the **Grab** function, then turn the supply back on and reset the currents.
+//[[carter@ohio.edu|Don Carter]] 2012/03/21 10:56//