ETMX's ISI and HEPI both tripped off at 19:41, seemed like a glitch.
Since this happened, Ryan C went into EX to reset VFD Panel, which allowed HEPI ETMX to stop tripping, but we noticed the T240s railing right after and then switching between extremes - this happened at 13:12 UTC. Screenshot below.
As of 13:31 PT (20:31) UTC, it looks like the T240 counts are coming back down.
A look at the sensors during this trip.
Was epics set point for the hepi pump beckhoff set to zero before resetting the vfd? If not, the t240 saturations are probably caused by the changing pressure in the hepi fluid while the pump servo ramps to operating pressure. Normally just resetting the pump vfd without zeroing out the set point would trip the pump, but maybe we got lucky.
Power glitch Monday 19:41:21 UTC.
Caught by MSR UPS, corner station mains_mon DQ channels for all three phases shown.
H1:HPI-PUMP_EX_CTRL_LOC_SETPT was set to zero but H1:HPI-PUMP_EX_CTRL_RMT_SETPT was still set to 70. I noticed the pressure came back on its own without me having to use the controller, that setpoint must be why. I'll make sure to zero it first next time.