Richard, Corey, Jim, Dave:
At 09:22 the site experienced a power glitch. The MSR UPS went onto battery backup for 3 seconds (logs shown below).
As was the case last Monday, the VFD chassis for the end station HEPI Pump Controllers tripped (see attachment). We don't see any other obvious issues at this time.
Corey is driving to the end stations, with remote support from Jim, to reset the VFD chassis.
Date: 07/01/2023
Time: 09:22:22
Code: 0x0109
Warning - UPS: On battery power in response to an input power problem.
Date: 07/01/2023
Time: 09:22:25
Code: 0x010A
Informational - UPS: No longer on battery power.
EY voltage plot of the three phases shown
Some Additional Notes:
- On the OPS OVERVIEW the "EX HEPI (psi)" box on upper right went RED due to this small power glitch & came back to GREEN after Jim restored. ("EY HEPI (psi)" has been WHITE, so this is not a good status indicator).
- Jim kept the SUSpensions damping through this whole endeavor
- Arrived at EX and EY to see the VFD box mounted on the side of the HEPI Pump Station in the Mechanical Room (see attached photo...does this stand for Variable Frequency Drive?) with its red light ON.
- Jim had me toggle power off (pushing in big RED button), and for today the light went OFF (I guess for Fil on Monday the light remained ON according to Dave)
- Then pushed big GREEN button (light came back on).
- Then Jim worked on restoring HEPI & ISI for EX & EY.
- Ran a DOWN on ISC LOCK, and seeing how H1 goes with locking (thought I'd try this first instead of immediately running an Initial Alignment).
One problem addressed.....looks like ALSx PLL was fine.....now to see how the violins situation will be.
