Saw the HAM6 HEPI was tripped this morning. It tripped on a large Actuator spike Saturday about 4pm, just a few hours after I go it fixed. Attached are the IPS spectra for HAM6 like I've plotted before--obviously V2 is back to its old ways. Also attached are all the local IPS sensors when it tripped. Again, V2 is not like the others and it is a bit hard to be sure but it looks like the big glitch on the V2 channels preceeds the other sensors moving off their previous values.
What to do?
Wiggle the cable some more and/or look closer at thecable going into the Pier Pod?
Change the sensor?--Requires changing both V2 & H2 sensors as these are matched to the Kaman Box within the Pier Pod--And yes you guessed it, pull the Pier Pod box and mount the matching Kaman box within.
Okay, just 'fixed' this again. This time I unplugged and plugged in the cable repeatedly and twisted (I believe) the cable to maybe clean the contacts. I don't think this is a 'back shell' shorting to the box issue. If it were, we have this problem in many places given the design and how they look.
The HEPI control loops are back on, manual without boosts.