Dave, Hugo,
Sometime around 4.30pm today, HAM2-CPS-H1 showed ~ +32000cts. The Watchdogs were then tripped. We turned off the master switch on the medm screen and the coil-drivers electronics, the readouts remained the same.
Dave and I restarted the h1iopseih23 and the computer/frontend. No change.
Connecting the faulty channel on another sensor interface showed that the signal was following the channel.
I went upstream and checked the voltage outputted by the ADE box of the CPSs:
-over 13V for this sensor.
-Within +/- 1V for the other ones
I tried connecting CPS-H1 on its neighboring ADE board. I also tried swapping the FeedThrough-to-ADE in-air cables between H1 and V1. The readout of CPS-H1 came back to normal during this process. It seems like the in-air FeedThrough-to-ADE cable of HAM2-CPS-H1 is faulty. I left it ON keeping in mind the symptoms we saw.