Stato elettronica UG controllo TRD
26 Marzo 2008
A.Bartoloni, B.Borgia, F.Spada
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UG-electronics in the TRD Gas System
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QM design
•
Design of control electronics from EM to QM updated after test session
in August 2004
•
Contract issued to G&A Engineering for construction and qualification of
QM and FM UG electronics
 February 2005
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Radiation test of few components performed at Karlsruhe, under the
supervision of Andrei Kounine, May 2005
•
Further modifications were introduced because of gas circuit changes,
e.g. 24V to 30V
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EM  QM
1. Change power supply: 24V30V (supply for Kulite, Marotta valves, pumps,
heaters)
2. Pumps power supply: 12V directly from DC-DC converter, 24V with step-down
circuit 30V24V.
3. Heaters x CO2, Xe vessels: on/off switches identical to Marotta valves switches
4. Added Kulite gauges
5. Dallas T sensors replacing GP-50 T:
+ n. 2 dedicated links to USCM
No basic circuit was modified, i.e. ADC, switches, serial link
QM FUNCTIONALITY TEST: JULY 2006
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Componenti
TIM January 2007: Siedenburg presentò una lista di circa 15 componenti che
secondo lui non erano approvati dalla collaborazione.
Di fatto un solo componente fu riconosciuto non accettabile.
Questo episodio ha scatenato una messa in mora, assolutamente non
giustificata, della progettazione di Roma dell’elettronica UG.
E’ stata imposta una stretta supervisione di Aachen che ha richiesto
l’approvazione formale di ogni passo nella progettazione e realizzazione
della versione QM2.
In pratica la supervisione ha evitato due errori di layout ma ha ritardato
notevolemente la realizzazione del QM2.
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QM to QM2……..
Following the change of linear regulators TPS73xx, of power distribution scheme and several changes
required by safest operations (short circuits on cables or components),
we had to design new QM UGxx boards with following major modifications
1.
replace the TPSxxxx regulators with SEL free LP2989 (UGBS, UGBC, UGFV)
2.
put limiting resistor on Kulites and GP50 power supply lines (UGBS, UGBC)
3.
separate 12V power supply for UGPS and flipper valve (UGFV)
4.
introduce LP2953 regulator to generate 24V for pumps high speed (UGBP)
5.
introduce LP2953 regulator to generate 21V for analog mux (UGBP)
6.
eliminate 3.3V DC-DC converter; generate 3.3V from 5V on backplane
7.
introduce Solid State Fuses (SSF) for short circuit protection on 5V, on each module
8.
introduce pull-down resistors on Mosfet gates
9.
introduce differential amplifier on Kulite inputs
10. eliminate UHVG (redesign of backplane)
11. eliminate 2 UGFV and reduce 8 multiple channels to 4 (redesign of pcb)
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UG-electronics test set-up
TV CHAMBER
ADC/DAC
NATIONAL
INSTRUMENT
UG CRATE
EPPCAN
BUS
GAS
SYSTEM
SIMULATOR
TEST STATION
POWER
SUPPLIES A
29V 12V 5V
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POWER
SUPPLIES B
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Test set up
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Vibration test
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TVT
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Qualification test command list
Configuration file
1. UGSCM A and B are initialized;
2. all valves controlled by UGBS (V1a, V2a, V3a, V4a, V10a,
V20a, V1b, V2b, V3b, V4b, V10b, V20b, Sp1, Sp2) are
enabled and opened for 5 s one at a time, and status is
read, then disabled;
3. all pressure sensors controlled by UGBS (P1a, P2a, P1b,
P2b, Pk1c, Pk2c, Pk1d) are read out;
4. all heaters controlled by UGBS (H1, H2, H3, H4, H5) are
enabled and started for 1 minute, then disabled, one at a
time;
5. operations 2 to 4 are repeated 4 times: [UGSCM-A +
UGBS-A], [UGSC M-A + UGBS-B], [UGSC M-B + UGBS-A],
[UGSCM-B + UGBS-B];
6. all power supplies (25V, 12V, 5V, 8.5V) controlled by UGBC
are enabled, and the status is read out;
7. all valves controlled by UGBC (V6a, V18a, V6b, V18b,
V6a&V18a, V6b&V18b) are enabled and opened for 5 s
one at a time, and status is read, then disabled;
8. all pressure sensors controlled by UGBC (P3, P4) are read
out;
9. all circulation pumps contro lled by UGBC (CP1, CP2) are
enabled at H speed, started and stopped after 5 s, then
enabled at F speed, started and stopped after 5 s then
disabled, one at a time;
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10. all UGBC serial ports (RS232_1, RS232_2, RS232_3,
RS232_4) are enabled and the status is read, then
disabled;
11. all power supplies (25V, 12V, 5V, 8.5V) controlled by UGBC
are disabled;
12. operations 6 to 11 are repeated 4 times: [UGSCM-A +
UGBC-A], [UGSC M-A + UGBC-B], [UGSC M-B + UGBC-A],
[UGSCM-B + UGBC-B];
13. all power supplies controlled by UGFV (12VPS, 12VFV,
21V, MUX) are enabled;
14. modules 1 to 4 are selected one at a time, and for each
module, valves V1 to V5 are opened then closed after 5 s;
15. multiplexers 1 to 4 are selected one at a time, and for each
multiplexer all pressure sensors (P1, P2, P3, P4, P5) are
read out;
16. all power supplies controlled by UGFV (12VPS, 12VFV,
21V, MUX) are disabled;
17. operations 13 to 16 are repeated 4 times: [UGSCM-A +
UGFV-A], [UGSC M-A + UGFV-B], [UGSC M-B + UGFV-A],
[UGSCM-B + UGFV-B].
Time needed to perform all commands: 15 minutes
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Stato UG
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UGPS FM installati
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UG-QM1 utilizzata sistematicamente per i test del TRD
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Software UG usato per QM1 e per i test funzionali del QM2
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UG- QM2 test funzionali OK
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Qualifica ESS e TVT del UG-QM2 inziata al SERMS il 13 Febbraio e
terminata il 29 Febbraio con successo
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4 Marzo: UG-QM2 al CERN per test funzionali con circuito di gas
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12 Marzo: UG-QM2 a Roma in attesa del UGPD
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UG-QM2
• 14 Marzo: UGPD-QM arrivato a Roma
• 18 Marzo: test funzionale UG-QM2+UGPD-QM ok
• 25 Marzo: inizio test EMC UG-QM2+UGPD-QM
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UG-electronics schedule / QM2
21/01/08
QM2 boards ready
functional tests
11/02/08 13/02
ready to start qualification tests (SERMS)
29/02/08 29/02
end of qualification tests (no EMC)
05/03
ready to start tests at CERN
14/03/08 07/03
end of tests at CERN
25/03/08
start EMC test
27/03/08
end EMC test
Go ahead FM
2 weeks delay
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UG-electronics schedule / FM
04/04/08
FM boards delivered by G&A
Start acceptance tests @ SERMS
21/04/08
end of FM boards acceptance tests
+ 2 settimane di ritardo
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