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- Press and hold the "Local/Remote" button on the front panel until the "Remote" status indicator comes on (this should take only a few seconds).
- Check that the "Remote" light is on
Controller locations
The roughing pumps have handheld controllers in the S20 FKG20-23 rack, second from the top shelf, sitting on the "CORNING" box:
And they look like this:
The turbopump controllers are in two places in the S20 gallery. The DS-DPS are behind the gas bottles beside the 20-12 penetration, and the US-DPS controllers are in the black standalone rack beside the 20-10 penetration.
DS-DPS controllers at penetration 20-12:
US-DPS controllers at penetration 20-10:
Power cycling roughing pumps using a breaker
The breaker panel for the DPS roughing pumps (and turbopumps) is:
Panel 2PK102E2 on south wall of S20 gallery
- 208V 3 phase
- Flash hazard Category 0
- PPE: Long sleeve shirt and pants (natural fiber), safety glasses
Circuits are tied together in sets of 3:
- 13,15,17 = 3151:US2 roughing pump
- 19,21,23 = 3171:US1 roughing pump
- 31,33,35 = 3259:DS1 roughing pump
- 30,32,34 = 3291:DS2 roughing pump
If a roughing pump will not reset an error message, turn power off on breaker
panel for 30 seconds, then power back on. More status info is available on the hand held
controllers in the FKG racks.
Pump redundancy
OLD STUFF BELOW
In the case of pressure rise on gauges 3259 and 3291 due to a failure of one or more pumps in the DS-DPS system, this procedure should be used to isolate the beamline and stop the pressure from rising further. See the attached document for the full procedure.
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Link to full procedure: FACET S20 DPS Troubleshooting - 03-04-2022.pdf
How to silence the roughing pump alarms in the tunnel
The roughing pumps will make an audible alarm if they are displaying a warning or alarm state. This is how to
Ideal method:
To check the cause of the alarm:
- Open the "DPS full schematic" from the LI20 Vacuum Epics page.
- For each roughing pump - click on the pump icon, then on "More..."
- You should see a list of all the warning and alarm states. If any of these has light beside it, then that is warning/alarm that is causing the problem.
- Make an Elog entry with the warning and alarm states that you find
If you understand the cause of the alarm and the implication of clearing it, then you can go back to the roughing pump control window (with the speedometer) and click on "Reset" to clear the warning/alarm state. You may have to hit reset a few times if it doesn't stop beeping on the the first try.
Alternative method:
If you do not understand why the particular error message is being displayed or if you are not comfortable clearing the error, but you need to stop the incessant noise from driving you crazy - then you can simply unplug the handheld controller panel that sits beside the roughing pumps under the light pipe. If you chose this path, then make all reasonable efforts to ensure that the controller panel is eventually reconnected.
In all cases - please notify the appropriate authorities that you have done something!
Troubleshooting if pumps keep turning themselves off during startup
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Stop the watcher, restart the pumps, then restart the watcher once the valves are in a good state. Alternatively, once a turbo is tripped off then you have ~10 minutes while the watcher ignores that stage. So if the turbo is shut off by the DPS when restarting, just try to restart again a second time within the 10 minute window and you should be fine.
Power cycling using a breaker
Breaker panel for the DPS roughing pumps is:
Panel 2PK102E2 on south wall of S20 gallery
208V 3 phase
Flash hazard Category 0
PPE: Long sleeve shirt and pants (natural fiber), safety glasses
Circuits are tied together in sets of 3:
13,15,17 = 3151:US2
19,21,23 = 3171:US1
31,33,35 = 3259:DS1
30,32,34 = 3291:DS2
If a roughing pump will not reset an error message, turn power off on breaker
panel for 30 seconds, then power back on. More status info is available on the hand held
controllers in the FKG racks.
Turbopumps also receive power from this panel. Turbo controllers are at penetration 20-10. There
is a small brown half rack on the floor.
Step-by-step troubleshooting guide for vacuum issues
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