Difference between revisions of "Solenoid Controls Redesign"
From GlueXWiki
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** add fast DAQ system prior to testing first coil - '''Done''' | ** add fast DAQ system prior to testing first coil - '''Done''' | ||
** add tests for internal shorts, shorts to ground and ground faults in coil and power supply to start-up sequence | ** add tests for internal shorts, shorts to ground and ground faults in coil and power supply to start-up sequence | ||
| − | ** add second dump circuit breaker | + | ** add second dump circuit breaker - '''NO, Mar-2012''' |
| − | ** add additional quench circuit diodes | + | ** add additional quench circuit diodes - '''NO, Mar-2012''' |
| − | ** add second quench detector (connected to second dump breaker) | + | ** add second quench detector (connected to second dump breaker) - '''PLC adequate as redundant QD - Mar 2012''' |
** add center tap to dump resistor and monitor ground current in the PLC | ** add center tap to dump resistor and monitor ground current in the PLC | ||
** add UPS on dump breakers to avoid fast discharges | ** add UPS on dump breakers to avoid fast discharges | ||
| Line 16: | Line 16: | ||
* Logbook research | * Logbook research | ||
| − | ** check elog for all problems | + | ** check elog for all problems - '''Done Mar-2012''' |
* Infrastructure | * Infrastructure | ||
| − | ** get fourth rack, install temporary wheels, bolt to other three racks | + | ** get fourth rack, install temporary wheels, bolt to other three racks - '''Done Nov 2011''' |
** install computer and other equipment | ** install computer and other equipment | ||
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*** prototype use of SOE module and relays in controls test stand - '''Done Dec-2011''' | *** prototype use of SOE module and relays in controls test stand - '''Done Dec-2011''' | ||
*** connect to internal power supply trip chains when feasible | *** connect to internal power supply trip chains when feasible | ||
| − | ** improve voltage range and eliminate cross-talk on voltage tap channels | + | ** improve voltage range and eliminate cross-talk on voltage tap channels '''Done Mar-2012 use PXI system''' |
| − | + | ||
| − | + | ||
| − | + | ||
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** need sub-coil inductances from Floyd/George - '''Done Dec-2011''' | ** need sub-coil inductances from Floyd/George - '''Done Dec-2011''' | ||
** modify QD for final configuration | ** modify QD for final configuration | ||
| − | *** test imbalance range adjustment in lab | + | *** test imbalance range adjustment in lab '''Done Nov-2012''' |
| − | + | ||
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*** list from Mark - '''Done Dec-2011''' | *** list from Mark - '''Done Dec-2011''' | ||
*** Use RTI 435NBX instead of Point I/O serial modules | *** Use RTI 435NBX instead of Point I/O serial modules | ||
| − | ** | + | *** Use RTI 490NBX for Ethernet/IP readout |
| + | ** replace shunt with flux-monitoring sensor '''Done Feb-2012 use CEBAF board readout of ZFCT''' | ||
** design and build breakout box | ** design and build breakout box | ||
| − | * NI fast DAQ | + | * NI PXI fast DAQ |
| − | ** test | + | ** test PXI system - '''Done Feb-2012''' |
| − | + | ||
** connect to PLC, EPICS | ** connect to PLC, EPICS | ||
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* A-B PLC programming | * A-B PLC programming | ||
** consider existing program a prototype, rework for 15-20 year lifetime | ** consider existing program a prototype, rework for 15-20 year lifetime | ||
| − | ** send Josh to A-B training - '''Jan-2012''' | + | ** send Josh to A-B training - '''Done Jan-2012''' |
** use custom ("add-on") instructions to simplify everything | ** use custom ("add-on") instructions to simplify everything | ||
** use function block, structured text and ladder logic as appropriate | ** use function block, structured text and ladder logic as appropriate | ||
** add new channels, modify old ones according to latest channel assignments | ** add new channels, modify old ones according to latest channel assignments | ||
*** new cryo channels | *** new cryo channels | ||
| − | *** | + | *** connect to Cryo PLC via ControlNet |
| − | + | ||
*** SOE module | *** SOE module | ||
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* UPS power | * UPS power | ||
** solenoid controls racks | ** solenoid controls racks | ||
| − | ** Danfysik control circuits and contactor | + | ** Danfysik control circuits and contactor |
** target? other cryo and vacuum systems? | ** target? other cryo and vacuum systems? | ||
** cooling systems (dewpoint)? | ** cooling systems (dewpoint)? | ||
Revision as of 15:53, 6 April 2012
To-do for solenoid controls redesign
- Recommendations from Director's Review (Electrical System and Quench Protection) and Lehman Review
- determine if cold diodes can increase quench detection - NO, Nov-2011
- add fast DAQ system prior to testing first coil - Done
- add tests for internal shorts, shorts to ground and ground faults in coil and power supply to start-up sequence
- add second dump circuit breaker - NO, Mar-2012
- add additional quench circuit diodes - NO, Mar-2012
- add second quench detector (connected to second dump breaker) - PLC adequate as redundant QD - Mar 2012
- add center tap to dump resistor and monitor ground current in the PLC
- add UPS on dump breakers to avoid fast discharges
- perform Failure Modes and Effects Analysis (FMEA)
- Logbook research
- check elog for all problems - Done Mar-2012
- Infrastructure
- get fourth rack, install temporary wheels, bolt to other three racks - Done Nov 2011
- install computer and other equipment
- Cryo system
- need specs, new channels, new functionality, etc. from Jonathan - Done Dec 2011
- update mechanical/electrical interface drawing
- Wiring
- add new equipment
- document trip chains
- label circuit breakers
- implement Sequence-Of-Events (SOE) module, need additional wiring and relays
- prototype use of SOE module and relays in controls test stand - Done Dec-2011
- connect to internal power supply trip chains when feasible
- improve voltage range and eliminate cross-talk on voltage tap channels Done Mar-2012 use PXI system
- Danfysik power supply
- implement dump resistor center-tap ground fault detector
- lockbox for door key
- lock/tag/try procedures for dump resistor
- procedures to check for dump resistor integrity and diode polarity prior to startup
- Quench detector
- need sub-coil inductances from Floyd/George - Done Dec-2011
- modify QD for final configuration
- test imbalance range adjustment in lab Done Nov-2012
- Instrumentation
- implement RS232 connections to all devices (e.g. vacuum gauges)
- list from Mark - Done Dec-2011
- Use RTI 435NBX instead of Point I/O serial modules
- Use RTI 490NBX for Ethernet/IP readout
- replace shunt with flux-monitoring sensor Done Feb-2012 use CEBAF board readout of ZFCT
- design and build breakout box
- implement RS232 connections to all devices (e.g. vacuum gauges)
- NI PXI fast DAQ
- test PXI system - Done Feb-2012
- connect to PLC, EPICS
- A-B PLC programming
- consider existing program a prototype, rework for 15-20 year lifetime
- send Josh to A-B training - Done Jan-2012
- use custom ("add-on") instructions to simplify everything
- use function block, structured text and ladder logic as appropriate
- add new channels, modify old ones according to latest channel assignments
- new cryo channels
- connect to Cryo PLC via ControlNet
- SOE module
- A-B HMI improvements
- SOE fault sequence screens
- other error screens
- Viewpoint
- get screens on the web
- security?
- EWEB
- create tag lists
- security?
- EPICS
- new channels
- UPS power
- solenoid controls racks
- Danfysik control circuits and contactor
- target? other cryo and vacuum systems?
- cooling systems (dewpoint)?
- downtime due to power loss is deciding factor
Notes
- max ramp rate in the hall is approximately 10V / 20H = 0.5 A/sec
Possible future improvements
- monitor selected circuit breakers so operators can quickly find them when they trip
