Transcript UG-Crate Update - Istituto Nazionale di Fisica Nucleare

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
F.R.Spada - UGcrate status - AMS TIM - 25/4/2008
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UG electronics design history
Aug 2004
Design of control electronics from EM to QM updated after
test session
Feb 2005
Contract issued to G&A Engineering for construction and
qualification of QM and FM
EM  QM
May 2005
Radiation test of few components performed at Karlsruhe,
under the supervision of A.Kounine
Further modifications introduced because of gas circuit
changes
No basic circuit modified (ADC, switches, serial link, …)
Jan 2007
A list of 15 components in QM identified by Th.Siedenburg,
that may be not be approved by the collaboration
Feb 2007
1 component rejected (linear regulator TPS73xx)
Revision of the layout
QM  QM2
Jun – Sep 2007
Sep 11, 2007
Following the change of linear regulators, of power
distribution scheme and several changes required by safe
operation (short circuits on cables or components), design
needs major modifications
Go-ahead for the QM2 construction
F.R.Spada - UGcrate status - AMS TIM - 25/4/2008
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QM to QM2 modifications
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
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 redesign of pcb
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UG electronics test history
QM1
QM2
FM
Jul 2006
UG functional tests at G&A Carsoli
ok(1)
Feb 4-12, 2008
UG functional tests in Rome
ok(2)
Feb 13-29, 2008
UG ESS + TVT qualification at SERMS
ok
Mar 4, 2008
UG at CERN for functional tests with gas circuit
ok(3)
Mar 12, 2008
UG in Rome waiting for UGPD
Mar 14, 2008
UGPD arrived in Rome
Mar 18, 2008
UG+UGPD functional test
ok
Mar 25-27, 2008
EMC UG+UGPD test at SERMS
ok(4)
Mar 2007
FM-UGPS installed at Aachen
(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
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QM2 UG-electronics qualification test set-up
TV / EMC
CHAMBER
ADC/DAC
NATIONAL
INSTRUMENT
UG CRATE
EPPCAN
BUS
GAS
SYSTEM
SIMULATOR
SLOW CONTROL
TEST STATION
POWER
SUPPLIES A
29V 12V 5V
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POWER
SUPPLIES B
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List of operations for qualification tests
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) a re 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], [UGSCM-A + UGBS-B], [UGSCM-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 controlled 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;
F.R.Spada - UGcrate status - AMS TIM - 25/4/2008
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 rep eated 4 times: [UGSCM-A +
UGBC-A], [UGSCM-A + UGBC-B], [UGSC M-B + UGBC-A],
[UGSCM-B + UGBC-B];
13 . a ll po wer su pplies con trolled by UGFV (12VPS, 12VFV,
21V, MUX) are enab led;
14 . modu les 1 to 4 are se lec ted one at a time, a nd for ea ch
modu le, va lve s V1 to V5 a re op ened then closed afte r 5 s;
15 . multiple xers 1 to 4 are se lected one at a time, and for each
multiple xer a ll press ure sen sors (P1 , P2, P3, P4, P5) are
read o ut;
16 . a ll po wer su pplies con trolled by UGFV (12VPS, 12VFV,
21V, MUX) are d isab led;
17 . operat ions 13 to 16 a re re peated 4 times : [UGSC M-A +
UGFV-A], [UGSCM-A + UGFV-B], [UGSC M-B + UGFV-A],
[UGSCM-B + UGFV-B].
Time needed to perform all commands: 15 minutes
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UG crate in the termal chamber
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UG crate on the vibration plate
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Termal test profile
Before vibration
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After vibration
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UG crate being prepared for TV test
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TVT temperature and pressure profiles
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EMC test setup
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EMC test setup
UG crate
5.6V, 12V, 29V
UGPD
from UGPD
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EMC test setup
UG crate
UGPD
Marotta, pumps & flipper
simulator
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EMC test setup
28V power supply for UGPD
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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
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Conducted emission around 15 KHz with capacitor on 29V
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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:
1.
one 470 µF capacitor on the backplane connected to the 29V A and 1 on the
29V B to comply with the EMC test
2.
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
1.
on the UGPD FM controller S9011A, the grounding 0 ohm resistor for the
return line of the 3.3V be removed
2.
on the UGSCM FM the pull-up resistors on RX lines be removed
3.
the power cables between UGPD and UG be shielded
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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
05/03
ready to start tests at CERN
07/03
end of tests at CERN
25/03/08
start EMC test
27/03/08
end EMC test
14/03/08
(no EMC)
Go-ahead for FM with 2 weeks delay
FM
04/04/08
21/04
FM boards delivered by G&A
Start acceptance tests @ SERMS
21/04/08
05/05
end of FM boards acceptance tests
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BACKUP SLIDES
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Radiated immunity loss of UGSCM UGPD communication
60 V/m
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Conducted emissions
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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, …)
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