The attached is just one instance and is fairly representative of the trips.  Most of the time, the ACTuator is called to blame, but as I reported in 29056, I'm not sure the Last Trip is absolutely robust.

The 2 seconds of full data show the ISI in Full Isolation (GRD STATE) when Stefan throws the shutter (FASTSHUTTER A MODE.)  You can see a fraction of a second later, the Actuator MASTER DRIVEs going very large.  All the actuators are contributing to the saturation counting as the threshold is only 32760 counts.  The watch dog trips near the end of the two seconds (WD MON STATE.)  It was going to happen anyway but I can't be sure why the WD tripped because none of the counters (iii SAT COUNT) actually reached the trip threshold.  This is a mystery to me, still.  The SAFE COUNT is 8192, 4096, and 10 for the ACT, GS13, and CPS.  None of the counters reach the SAFE COUNT level....  Regardless, the Actuators where going to reach it so that is another problem to figure out.

Unless the shutter softens its blow on the ISI, the trips are going to happen almost everytime.  For now, we are running with HAM6 in the DAMPED state.  There the HAM6 sees a few saturations on the GS13s when the Shutter triggers but literally just a few.  The HAM6 will be transitioned to ISOLATED by the ISC after the FAST SHUTTER is tested.