Sheila, Keita, TVo

Last night I ran into a funny situation while trying to scan the OMC with the IFO beam in single bounce off ITMX.  In order to do this scan, we need to have the fast shutter down and the PZT2 shutter down and the outputs enabled so that you can actually do the sweep.  Effectively, there are two shutters we want to have open FASTSHUTTER_A and PZTSHUTTER_A.

However,  when we tried the logic here to open the fast shutter by setting the threshold to negative (H1:SYS-MOTION_C_SHUTTER_G_THRESHOLD), this would shut off the PZT2 output. Then setting the same threshold to zero or positive, the PZT2 output would be enabled and the fast shutter would close.  SO, there must be some logic that I am missing.  Keita suggested  power cycling the Fast Shutter Driver which Sheila noted having some funky readings (pictures attached).  However, this doesn't seem to have fixed the problem.