Difference between revisions of "For the third coil"

Revision as of 10:58, 10 March 2011

To-do list

• Wiring
  • checkout, understand noise, signal clipping and interaction between modules
  • eliminiate pickup on downstream lead/splice (esp. during dump)
  • understand induced voltages on taps during testing

• Danfysik power supply
  • fix broken transistor
  • commission fault sequencer
  • understand ramp-down mechanism
  • understand varying fast dump time constants
  • fix slow dump
  • choose ground fault detection compatible with quench detector

• Danfysik quench detector
  • implement front-end balancing circuits

• Instrumentation
  • ensure all devices on clean power
  • check out Newport controllers, flow switch
  • implement system to isolate fault detectors and determine time sequence of trips
  • understand spikes on shunt Newport
  • understand effect of B field on all sensors
  • monitor circuit breakers?

• NI USB device
  • rework Zener/divider box, needs to be fully bipolar
  • eliminate noise

• A-B HMI improvements
  • upgrade to 100 screen license
  • implement fault sequence screens

• A-B PLC program improvements
  • use custom ("add-on") instructions to simplify code

• EPICS

• 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?
• should we monitor all relays?
• effect of B field on sensors/relays?