Difference between revisions of "For the fourth coil"
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* Danfysik quench detector | * Danfysik quench detector | ||
| + | ** one or two channels? | ||
| Line 30: | Line 31: | ||
* A-B HMI improvements | * A-B HMI improvements | ||
** implement fault sequence screens if system implemented | ** implement fault sequence screens if system implemented | ||
| + | ** ensure auto elog entries work | ||
| Line 45: | Line 47: | ||
* Auxiliary tests | * Auxiliary tests | ||
| + | ** more crate tests | ||
| Line 67: | Line 70: | ||
* use custom ("add-on") instructions to simplify PLC code | * use custom ("add-on") instructions to simplify PLC code | ||
* install permanent VME-based fast DAQ | * install permanent VME-based fast DAQ | ||
| + | * logarithmic or equivalent current and voltage measurements | ||
| + | * isolate coil taps | ||
| + | * sequence of events module | ||
| + | * attenuators on Dataforth modules | ||
| + | * check dump resistor and diode in checklist, interlocks | ||
| + | * backup in case dump resistor/diode broken | ||
| + | * dump at low current to check dump system in checkout list | ||
| + | * logarithmic amps on voltages to get full range | ||
| + | * manual check of resistor/diode connection and polarity | ||
| + | * improve checklists and test plan | ||
| + | * resistor/diode checks in maintenance OSP and/or operations OSP | ||
Latest revision as of 13:33, 25 July 2011
To-do list
- Wiring
- rewire for coil 2 subcoils
- document trip chains
- label circuit breakers
- Danfysik power supply
- commission new readout channels
- commission fault sequencer
- fix slow dump
- understand ramp-down mechanism
- choose ground fault detection mechanism
- Danfysik quench detector
- one or two channels?
- Instrumentation
- implement system to isolate fault detectors and determine time sequence of trips - postponed 8-Apr-2011
- monitor circuit breakers?
- VME-based fast DAQ
- real-time graphics
- A-B HMI improvements
- implement fault sequence screens if system implemented
- ensure auto elog entries work
- A-B PLC program improvements
- mods for new coil configuration
- EPICS
- new channels
- EWEB screens
- update for latest tags and drawings
- Auxiliary tests
- more crate tests
- Reenable cron job
- when cooldown commences, end when warmed up
For the hall
- note that max ramp rate in the hall is approximately 10V / 20H = 0.5 A/sec
- need travelers for coil installation.
- should we install a UPS on the Danfysik contactor and control boards?
- should we install a second contactor in the Danfysik power supply?
- 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?
- should we monitor all relays?
- what is the effect of B field on sensors/relays? should some instrumentation be relocated?
- do we need new flow sensors, or should they be relocated?
- lock box for power supply key
- more ethernet power strips
- use custom ("add-on") instructions to simplify PLC code
- install permanent VME-based fast DAQ
- logarithmic or equivalent current and voltage measurements
- isolate coil taps
- sequence of events module
- attenuators on Dataforth modules
- check dump resistor and diode in checklist, interlocks
- backup in case dump resistor/diode broken
- dump at low current to check dump system in checkout list
- logarithmic amps on voltages to get full range
- manual check of resistor/diode connection and polarity
- improve checklists and test plan
- resistor/diode checks in maintenance OSP and/or operations OSP
