Transcript TRD Gas System Slow Control at MIT- Cambridge AMS TRD Meeting, CERN, July 2002 U.

TRD Gas System Slow
Control at MIT- Cambridge
AMS TRD Meeting, CERN, July 2002
U. Becker, B. Demirkoz, P. Fisher,
R. Henning, B. Monreal.
7/17/2002
R. Henning -- TRD Gas Slow Control
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Overview
•
Help Design and Build Control Systems for TRD Gas
System Prototype and Flight Systems.
1. Prototype System
o
Tested Mixing Program for Prototype Box S using USCM V02.
2. “Commercial Version”
o
Test Software and Electronic Prototypes (Roma) for Whole Gas
System using USCM V03
3. Flight System
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R. Henning -- TRD Gas Slow Control
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TRD Gas System Overview
Box S
Manifolds
Box C
TRD
300 Liters
Xe
1550psia
Mixing Vessel
200 psia
17.6-20.4psia
CO2
940 psia
Figure 1: Schematic Arrangement of the TRD gas system. All pressure are
given at 25 oC.
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R. Henning -- TRD Gas Slow Control
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Prototype System (1)
DOUT
RS-232
USCMV02
Box S
ADC
Prototype
Power
Drivers
•
7/17/2002
Currently Used in Closed System Test
(B. Monreal)
R. Henning -- TRD Gas Slow Control
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Prototype System (2)
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R. Henning -- TRD Gas Slow Control
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Electronics for Commercial
System
Mixing Program
EPP
Koutsenko
CAN Interface
+
Guido Board
•
Under Construction
•
Develop Flight
Software
•
Control Commercial
Gas Systems
7/17/2002
CAN
Commercial
Gas
Systems
R. Henning -- TRD Gas Slow Control
2 x USCMV03
LVDS
UGBS
UGBC, etc.
(Roma)
6
Box S Electronic Simulator
Roma
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R. Henning -- TRD Gas Slow Control
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Flight System
USCM
-
Simple
Operations
Continuous
Monitoring
JMDC
AMS/ISS
CAN
Mixing Program
LVDS
•
•
7/17/2002
Gas System
Power
Emergency
Operations
Crate
ElectronicsR. Henning -- TRD Gas Slow Control
Operator
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Mixing Operation
-
Mixing Program On Ground and JMDC
-
Following Sequence:
1. Start with Known Mixture in D Vessel. Vent D if mixture
unknown.
2. Fill required partial pressure of CO2
3. Fill required partial pressure of Xe.
4. Vent to Box C when required.
-
Minimize ground communication
-
Gas Transfer Controlled by Time Valve is Open.
-
Timing of Valve operations performed by UGBS, not
USCM!
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R. Henning -- TRD Gas Slow Control
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We Appreciate the Help of:
7/17/2002
•
Volker Commichau
•
Klaus Hangarter
•
Clemens Camps
•
Alexei Lebedev
•
Vladimir Koutsenko
R. Henning -- TRD Gas Slow Control
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Box S Signals and Power
# of
Conductors Purpose
Component
Voltage
Current
Description
MV100 & MV197
GP:50
24V
24V
1.0A
100mA
Hold Valve Open When Current is On
5V?
0--5V
n/a
n/a
Valve Mechanical Status (open / closed)
Pressure and Temperature Analog Value
Read by USCM
Box S Power
52 = 2 x 2 x 13
16 = 2 x 2 x 4
Valve Power
Pressure Sensor Power
Box S Signals.
39 = 3 x 13
12 = 3 x 4
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Signals From Box S
Valve Status
MV100 *
Pressure Sensor Readout GP:50
Dallas Sensor (TBD)
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Xe
VG1a
F3a
RVG1a-2800psi
Ground
Equipment
Figure 2: Box
S Diagram
V17a
V1a
T
T
V2a
Xe Bottle:
1550psia
F1a
V10a
30cc
F2a
V3a
O1a
P2a
60cc
V4a
V5
P1a
O2a
7 liters
per day
to Box C
V20a
RV3-300psi
V20b
V4b
V10b
T
CO2 Bottle
940psia
D Vessel (Mix)
F1b
T
V1b
15cc
V2b
30cc
F2b
F3b
CO2
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VG1b
O1b
V3b
P2b
V17b
P1b
O2b
RVG1b-1200psi
Ground
Equipment
R. Henning -- TRD Gas Slow Control
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Box S
Pinout
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JS1A &JS1B (37 pin)
Pin # Connection
JS2 (21pin)
Pin # Connection
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
V1A +E
V10A +E
V3A +E
V20B +E
V3B +E
V4A +E
V5 +E
V1A -E
V10A -E
V3A -E
V20B -E
V3B -E
V4A -E
V5 -E
P1A -E
P1B -E
unconnected
P1A +E
P1B +E
V20A +E
V2A +E
V1B +E
V10B +E
V2B +E
V4B +E
unconnected
V20A -E
V2A -E
V1B -E
V10B -E
V2B -E
V4B -E
P2A -E
P2B -E
unconnected
P2A +E
P2B +E
V1A O
V1A C
V20A SCOM
V10A O
V10A C
V2A SCOM
V3A O
V3A C
V1B SCOM
V20B O
V20B C
V1A SCOM
V20A O
V20A C
V10A SCOM
V2A O
V2A C
V3A SCOM
V1B O
V1B C
V20B SCOM
JS3 (31pin)
Pin # Connection
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
+E : + Excitation Voltage
26
-E : - Excitation Voltage
27
O : Open Status Indicator
28
C: Close Status Indicator
29
SCOM : Status Common (+5V ?) 30
SR : Signal Return
31
P : Pressure Readout
T: Temperature Readout
R. Henning -- TRD Gas Slow Control
V10B O
V10B C
V2B SCOM
V3B O
V3B C
V4A SCOM
V5 O
V5 C
V4B SCOM
unconnected
P1A SR
P1B P
P1B T
P2A SR
P2B P
P2B T
V10B SCOM
V2B O
V2B C
V3B SCOM
V4A O
V4A C
V5 SCOM
V4B O
V4B C
P1A P
P1A T
P1B SR
P2A P
P2A T
P2B SR
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Manifolds
VMnA
From
Gas
System
VMnB
VMnC
VMnD
OMnA
OMnB
TRD
Segment n
PMnA
430 cu. in
(7 liters)
To Gas
System
PMnB
n =1 to 41
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Figure 3: Box C
P5
RV4 – 29psig
P3
To
Manifold
CO2 Analyzer
CP2
CP1
V9a
V8A
V8B
From
Manifold
Monitor Tube
V6a
V6b
Monitor Tube
V9b
Monitor Tube
P4
Monitor Tube
V18a
V18b
RV5-200psig
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R. Henning -- TRD Gas SlowFrom
Control
Box S
(From V4a)
From Box S
(From V4b)
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