Difference between revisions of "For the second coil"
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− | + | '''To-do list''' | |
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+ | * Wiring | ||
+ | ** remove jumper box and cables and bring to F117 for rework - '''done''' | ||
+ | ** remove current-limiting resistor boxes, bring to F117 for rework - '''done''' | ||
+ | ** minimize summed coil voltage readouts, do most sums in PLC - '''done''' | ||
+ | ** add separate readouts of splice and vapor-cooled lead voltages - '''done''' | ||
+ | ** combine splice and lead into one hardware quench/overvoltage protection channel using Newport controller - '''done''' | ||
+ | ** match and balance all current-limiting resistors, go back to original 100k Ohm matched resistors - '''done''' | ||
+ | ** read out voltage taps for quench detection and DAQ using separate resistor chain - '''done''' | ||
+ | ** update wiring diagrams to "as built" - '''done''' | ||
+ | ** get diagrams and spec sheets to Fernando - '''done''' | ||
+ | ** checkout, understand noise, signal clipping and interaction between modules | ||
− | * | + | * Danfysik power supply |
− | ** | + | ** understand ramp-down mechanism - '''done''' |
− | ** | + | ** measure fast dump resistors in power supply - '''done''' |
− | ** | + | ** eliminate 2V DC offset - '''done''' |
− | ** | + | ** fix slow dump - '''done''' |
− | + | ** make more copies of full Danfysik power supply manual (get from Steve L) - '''done''' | |
− | + | ** implement ground fault detection compatible with quench detector | |
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− | ** | + | |
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− | * | + | * Danfysik quench detector |
− | ** | + | ** match and balance resistors - '''done''' |
− | ** | + | ** install test points for gain/offset tuning - '''done''' |
− | ** | + | ** install pots for balance - '''done''' |
− | ** | + | ** install bias circuit to account for Danfysik DC offset and common mode voltage - '''done''' |
− | ** | + | ** checkout |
− | *** | + | |
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− | + | * Dataforth system | |
− | * | + | ** Correct for 2M Ohm internal impedance and 200k Ohm resistors in voltage tap readouts - '''done''' |
− | ** | + | ** Correct for other internal resistances (vapor-cooled leads and splice) |
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− | *** | + | * USB device |
− | ** | + | ** install voltage dividers to extend voltage range - '''done''' |
− | ** | + | ** add resistors to Zener protection circuit - '''done''' |
− | * | + | ** complete Zener/divider box and checkout |
− | ** | + | |
− | ** | + | |
− | ** | + | * automated elog entries |
− | ** | + | ** automatically dump screens to files - '''done''' |
− | ** | + | ** create perl script - '''done''' |
− | ** | + | ** create cron job - '''done''' |
− | ** | + | |
− | ** | + | |
− | *** | + | * A-B HMI improvements |
− | ** improve | + | ** get additional HMI client license from Steve - '''done''' |
− | *** | + | ** get second HMI computer working - '''done''' |
− | *** | + | ** implement A-B license server - '''done''' |
− | *** | + | ** get A-B IIS file server system working - '''done''' |
− | *** note that max ramp rate in the hall is 10V / 20H = 0.5 A/sec | + | ** change HMI database to MySql - '''done''' |
− | * | + | ** create more pre-defined trend plots - '''done''' |
− | + | ** improve screen layouts - '''done''' | |
− | + | ** upgrade to 100 screen license | |
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− | + | * A-B PLC program improvements | |
− | + | ** new channels - '''done''' | |
− | + | ** improve, simplify program - '''done''' | |
− | * | + | ** try A-B alarm and logging systems - '''done''' |
− | * | + | ** test PLC-based alarm system |
− | * | + | ** use custom ("add-on") instructions to simplify code |
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− | * | + | |
− | + | * EPICS | |
− | + | ** get list of all tags from osh - '''done''' | |
− | + | ** serve out all PLC channels to CA | |
− | * | + | ** implement guard shack notification for IOC hang/crash |
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− | ** | + | |
− | * | + | * EWEB screens |
− | * | + | ** update for latest tags and drawings |
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+ | '''For the hall''' | ||
+ | * note that max ramp rate in the hall is approximately 10V / 20H = 0.5 A/sec | ||
+ | * should we install a UPS on the Danfysik contactor and control boards? | ||
+ | * do we need additional valves, check valves, bypasses, whatever? | ||
+ | * do we need Dataforth voltage attenuators on coil tap channels? | ||
+ | * do we need active isolation of coil tap channels, etc? | ||
+ | * should we monitor all circuit breakers? | ||
+ | |||
+ | |||
+ | '''Basic questions''' | ||
+ | * lag between field and current...are there turn-to-turn shorts in coil 1? | ||
+ | ** maybe short, maybe eddy currents... | ||
+ | * will we open up coil 3 and/or coil 4? | ||
+ | * do we want an independent review of our fast (and slow) dump strategy and system? | ||
+ | * document our experience! |
Latest revision as of 09:51, 24 February 2011
To-do list
- Wiring
- remove jumper box and cables and bring to F117 for rework - done
- remove current-limiting resistor boxes, bring to F117 for rework - done
- minimize summed coil voltage readouts, do most sums in PLC - done
- add separate readouts of splice and vapor-cooled lead voltages - done
- combine splice and lead into one hardware quench/overvoltage protection channel using Newport controller - done
- match and balance all current-limiting resistors, go back to original 100k Ohm matched resistors - done
- read out voltage taps for quench detection and DAQ using separate resistor chain - done
- update wiring diagrams to "as built" - done
- get diagrams and spec sheets to Fernando - done
- checkout, understand noise, signal clipping and interaction between modules
- Danfysik power supply
- understand ramp-down mechanism - done
- measure fast dump resistors in power supply - done
- eliminate 2V DC offset - done
- fix slow dump - done
- make more copies of full Danfysik power supply manual (get from Steve L) - done
- implement ground fault detection compatible with quench detector
- Danfysik quench detector
- match and balance resistors - done
- install test points for gain/offset tuning - done
- install pots for balance - done
- install bias circuit to account for Danfysik DC offset and common mode voltage - done
- checkout
- Dataforth system
- Correct for 2M Ohm internal impedance and 200k Ohm resistors in voltage tap readouts - done
- Correct for other internal resistances (vapor-cooled leads and splice)
- USB device
- install voltage dividers to extend voltage range - done
- add resistors to Zener protection circuit - done
- complete Zener/divider box and checkout
- automated elog entries
- automatically dump screens to files - done
- create perl script - done
- create cron job - done
- A-B HMI improvements
- get additional HMI client license from Steve - done
- get second HMI computer working - done
- implement A-B license server - done
- get A-B IIS file server system working - done
- change HMI database to MySql - done
- create more pre-defined trend plots - done
- improve screen layouts - done
- upgrade to 100 screen license
- A-B PLC program improvements
- new channels - done
- improve, simplify program - done
- try A-B alarm and logging systems - done
- test PLC-based alarm system
- use custom ("add-on") instructions to simplify code
- EPICS
- get list of all tags from osh - done
- serve out all PLC channels to CA
- implement guard shack notification for IOC hang/crash
- EWEB screens
- update for latest tags and drawings
For the hall
- note that max ramp rate in the hall is approximately 10V / 20H = 0.5 A/sec
- should we install a UPS on the Danfysik contactor and control boards?
- do we need additional valves, check valves, bypasses, whatever?
- do we need Dataforth voltage attenuators on coil tap channels?
- do we need active isolation of coil tap channels, etc?
- should we monitor all circuit breakers?
Basic questions
- lag between field and current...are there turn-to-turn shorts in coil 1?
- maybe short, maybe eddy currents...
- will we open up coil 3 and/or coil 4?
- do we want an independent review of our fast (and slow) dump strategy and system?
- document our experience!