1 / 24

UG-crate status

UG-crate status. AMS TIM - CERN - 15/4/2008 A.Bartoloni, B.Borgia, F.R.Spada* INFN Roma. UG-electronics in the TRD Gas System. UG electronics design history. Replace the TPSxxxx regulators with SEL free LP2989 (UGBS, UGBC, UGFV)

elton
Download Presentation

UG-crate status

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UG-crate status AMS TIM - CERN - 15/4/2008 A.Bartoloni, B.Borgia, F.R.Spada* INFN Roma

  2. UG-electronics in the TRD Gas System F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  3. UG electronics design history F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  4. Replace the TPSxxxx regulators with SEL free LP2989 (UGBS, UGBC, UGFV) Put limiting resistor on Kulites and GP50 power supply lines (UGBS, UGBC) Separate 12V power supply for UGPS and flipper valve (UGFV) Introduce LP2953 regulator to generate 24V for pumps high speed (UGBP) Introduce LP2953 regulator to generate 21V for analog mux (UGBP) Eliminate 3.3V DC-DC converter  generate 3.3V from 5V on backplane Introduce Solid State Fuses (SSF) for short circuit protection on 5V, on each module Introduce pull-down resistors on Mosfet gates Introduce differential amplifier on Kulite inputs Eliminate UHVG  redesign of backplane Eliminate 2 UGFV and reduce 8 multiple channels to 4  redesign of pcb QM to QM2 modifications F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  5. UG electronics test history (1) since then, QM1-UG widely used for the TRD gas functional tests (2) SlowControl software used on QM1-UG and for QM2-UG functional tests (3) found a few problems in the FM gas circuit cabling (pumps and spirometer) (4) found some anomalous behaviour in interaction with UGPD - solved F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  6. ADC/DAC NATIONAL INSTRUMENT EPPCAN BUS POWER SUPPLIES A POWER SUPPLIES B QM2 UG-electronics qualification test set-up TV / EMC CHAMBER UG CRATE GAS SYSTEM SIMULATOR SLOW CONTROL TEST STATION 29V 12V 5V F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  7. List of operations for qualification tests Time needed to perform all commands: 15 minutes F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  8. UG crate in the termal chamber F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  9. UG crate on the vibration plate F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  10. Termal test profile Before vibration After vibration F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  11. UG crate being prepared for TV test F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  12. TVT temperature and pressure profiles F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  13. EMC test setup F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  14. EMC test setup UG crate UGPD 5.6V, 12V, 29V from UGPD F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  15. EMC test setup UG crate UGPD Marotta, pumps & flipper simulator F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  16. EMC test setup 28V power supply for UGPD F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  17. Problems encountered during EMC test: CE03: at 15kHz exceeded limit by ≈ 3db Inserted a 500 µF capacitor on 29V line to the backplane Solved RS03: at 60V/m, 240MHZ lost LeCroy communication between UGSCM and UGPD (with UGSCM  UG crate ok) Elimination of one ground loop on LeCroy bus at UGPD Shielded 12V and 29V power cables (originally, twisted) Solved F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  18. Conducted emission around 15 KHz with capacitor on 29V F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  19. Summary • QM2 was qualified at SERMS, Terni • Both the ESS and the TVT showed full functionality of the electronics, with stability of sensor readings within 0.3-0.4 % in all temperature ranges Full reports are under preparation by the test laboratories • Only two modifications will be implemented to the FM electronics: • one 470 µF capacitor on the backplane connected to the 29V A and 1 on the 29V B to comply with the EMC test • 3K Ω pulldown resistors on RX0A and on RX0B on the backplane to avoid feeding static 5V from UGSCM to RS232 components in the UGBC The required ECO's will be issued • No modifications required by the ESS or by the TVT test • No modifications required by the functionality test performed on the actual gas circuit • The spirometer was correctly read, and the pumps were correctly operated when correctly connected We require that • on the UGPD FM controller S9011A, the grounding 0 ohm resistor for the return line of the 3.3V be removed • on the UGSCM FM  the pull-up resistors on RX lines be removed • the power cables between UGPD and UG be shielded F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  20. UG-electronics schedule F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  21. BACKUP SLIDES F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  22. Radiated immunity loss of UGSCM UGPD communication 60 V/m F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  23. Conducted emissions F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

  24. EM to QM modifications Change power supply: 24V  30V supply for Kulite, Marotta valves, pumps, heaters Pumps power supply: 12V directly from DC-DC converter 24V with step-down circuit 30V  24V Heaters on CO2, Xe vessels on/off switches identical to Marotta valves Kulite gauges Dallas T sensors replacing GP-50 T + n. 2 dedicated links to USCM No basic circuit modified (ADC, switches, serial link, …) F.R.Spada - UGcrate status - AMS TIM - 25/4/2008

More Related