Transcript FGT_safety_elec_20090902x - Indiana University Bloomington

STAR Forward GEM Tracker
Safety Review
Electrical
Gerard Visser
Indiana University Cyclotron Facility
John T. Anderson
Argonne National Laboratory
Benjamin Buck
Massachusetts Institute of Technology
9/2/2009
FGT Safety Review – 9/2/2009 BNL
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Topics
• FGT electrical overview
• GEM bias connections
• Front end electronics
• Cable plant
• Readout crate, power supplies and modules
• Other FGT electrical equipment
• WSC field shaping bias connections
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Overview I: Readout system integration schematic (simplified)
Estimated cable run 65 feet
[ WSC → TPC sec 2/3 boundary
→ sec 2/3 tray out of magnet
→ 2nd level platform ceiling tray → 2C7/8/9 ]
FGT Cables
24 FEE signal
24 power & remote sense
24 HV coax
2+2
8
Cable break connectors/boxes located
just outside of west support cylinder, on
TPC wheel. This point also serves as
FGT detector ground tie (to TPC wheel).
Internal FEE signal cables: custom
low-mass aluminum design with
silicone & FEP extruded insulation
Wiener MPOD
controller (1x)
ISEG 8 ch HV
module (3x)
Wiener crate (1x)
(FGT custom)
6U x 220mm cards
SGIS
(to kill all FGT power)
208 V 1 φ
ethernet
ARM (12x)
(APV Readout Module)
[IUCF]
FGT Safety Review – 9/2/2009 BNL
trig/clk
DDL fiber
ARC (2x)
(APV Readout Controller)
[ANL]
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STAR TPC aluminum structural parts
(STAR system ground)
3
Terminator board
FR-4, 32 x 38 x 0.8 mm
FEE board (2x)
FR-4, 259 x 53 x 1.6 mm
Total power 6.9 W
per quadrant
(ref. slide 5, 6)
4
2
see detailed
cable info on
slide 7
Ground wire
18AWG stranded
1
“Connector” board
FR-4, 65 x 45 x 0.8 mm
FGT cables to platform
Overview II: GEM quadrant assembly and electrical connections
2
LV & signal patch
Bud #PN-1320-C
64 x 58 x 35 mm
Polycarbonate, UL 94HB
Bias divider board
FR-4, 20 x 275 x 0.8 mm
Anode strip board and ground plane
FGT Safety Review – 9/2/2009 BNL
GEM bias patch
SHV cable connectors
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GEM bias system
iseg Spezialelektronik GmbH
# EHS8060n
-6 kV [hardware limit (pot)
shall be set at -5 kV]
1 mA hardware current limit
5kV type, SOA # S3838CVX104K30
or equivalent
cathode
20 mA current loop permit
input
connectors: SHV
grounded (non-floating) output
GEM #1
platform
Ohmite
# OA101KE
or # OX101KE
GEM #2
GEM #3
anode strips
(to break ground loop
for noise/performance
reasons)
Divider string power:
2.4 W maximum
6 kV type
Syfer #
1812Y6K00221MXT
TPC west
FGT Safety Review – 9/2/2009 BNL
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Front end electronics
FEE board (prototype)
Power: 1.5 W
Input supply: 0.45 A @ +1.25 V, 0.78 A @ -1.25 V
Materials: FR-4, copper, nickel/gold plating,
SnPb solder, silicon, encapsulant (epoxy, silica,
flame retardant)
Signal inputs
APV chip w/ encapsulant
Connector board prototype
Power (local): 1.5 W
Input supply: 0.94 A @ +1.8 V, 1.60 A @ -1.8 V,
fused at source end of cable (ref. slide 8)
Clock/trg buffers
Remote sense on input supply; all terminals here
fused with Raychem # nanoSMDC020F
(0.42 A trip @ 25 °C, 24 VDC 100 A interrupt rating)
Voltage regulators
1.8 V to 1.25 V (2x)
2 A max
Connector is for prototype only;
direct solder to cable for real board
Output feed: 0.90 A @ +1.25 V, 1.56 A @ -1.25 V
Materials: FR-4, polyimide (cable clamp pieces),
copper, nickel/gold plating, soldermask, SnPb
solder, silicon, package molding compounds
(epoxy, silica, flame retardant), stainless steel
screws
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Cable plant details
1
2
3
4
Inner service combined signal/power cable
24x 6 feet
Manufacturer: Calmont Wire & Cable Co.
P/N: tbd, custom design
Construction: 12pr 30AWG CCAW* / FEP, 10c 20AWG CCAW / silicone, overall Al foil shield, silicone jacket
Ratings: None, but constructed equivalent to UL 150V, NEC type CL2 or superior ( → pass UL-1581 vertical tray)
Connector #1: None
Connector #2: DB37, AMP # 5-747916-2 (rated 3 A, 1000 VAC withstanding; service here ≤ 1.6 A, 5 V)
GEM bias HV cable (for inner service and external)
24x 71 feet
Manufacturer: NK Networks
P/N: ?? – Cable is marked “NK NETWORKS 9943 C-50-2-1 MODIFIZIERT FRNC-B - DESY 16995 MT”
Construction: ??
Ratings: Details unknown but the cable is approved by and procured through DESY; said to be made to CERN & DESY specifications
Connector #1: SHV, Huber and Suhner # 11-SHV-50-2-5 / NE 133 (similar to RG-59 type except for cable diameters)
Connector #2: same, except inner cable only one connector (soldered at detector)
External service signal cable
24x 65 feet
Manufacturer: Belden
P/N: 1424A
Construction: 12pr 24AWG Cu / foam PE, overall Al foil shield, PVC jacket
Ratings: UL style 2919 (30 V 80 °C); NEC type CM
Connector #1: DB25, AMP # 5-747913-2 (rated 3 A, 1000 VAC withstanding; service here ≤ 0.1A, 5 V)
Connector #2: same
External service power/sense cable
24x 65 feet
Manufacturer: Belden
P/N: 5307FE (selection is not final, may substitute a similar cable)
Construction: 9c 18AWG Cu / PP (or PVC substitute), overall Al foil shield, PVC jacket
Ratings: UL 300 V 75 °C, 3.5 A per conductor; NEC type CMR
Connector #1: Amphenol # 97-3101A-18-1S (rated 200 VAC, 13 A (test); service here ≤ 1.6 A, 5 V)
Connector #2: Weidmüller # BCZ 3.81/09/90F SN BK BX or similar (UL rated 300 V 10 A; service here ≤ 1.6 A, 5 V)
*Note: CCAW = copper-clad aluminum wire (typically used for magnet wire in aerospace equipment).
10% copper cladding by volume. Termination will be by soldering (SnPb).
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Readout (and power) crate
cPCI
Customized version of Wiener #6023 6U crate (which is
used extensively at STAR)
Card depth 220mm (vs. VME standard 160mm)
Divided into 3 segments of 7 slots each:
• MPOD controller and ISEG HV modules (3, double-width)
• Two segments of 7 slots for readout boards, interconnected
with CPCI backplane; each slot has 13 power pins (+5) rated
at 0.8 A each
Rear connection of cables to FEE, via transition modules
Internal power supplies:
• 24 V 23 A (for HV modules); actual load ≤ 10.5 A
• 2x 5 V 115 A (for readout boards); actual load ≈ 46 A each
Dimensions: width 429 mm, height 172 mm, depth 215 mm
Weight: 17.6 kg
Rated mains input range: 100- 240VAC ± 10% (90...265VAC)
Rated input current: Sinusoidal 16A
Inrush current: limited to rated input current (cold unit)
Input fuse: external, intern on special request
Isolation (input – output) CE / EN 60950, ISO 380, VDE 0805, UL 1950, C22.2.950
DC output power: 3kW max
Operation temperature: 0… 50°C ambient without derating
Efficiency: 75% ... 85% (depending on module type)
In this configuration, input current 10.9A @ 208V at maximum
load. Actual for expected load (ref. next slide) 4.6 A @ 208V.
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Readout modules
ARC module (APV Readout Controller)
Power: 20 W
Input supply: 4.0 A @ +5.0 V, fused @ 6.3 A,
Littelfuse 451 series*
P1
SIU
Materials: FR-4, copper, nickel/gold plating,
aluminum, package molding compounds, SnPb
solder, ceramics
cPCI
trigger
DAQ
fiber
Power (local): 24 W
ARM (APV Readout Module)
Input supply: 7.0 A @ +5.0 V (35 W), fused @ 10 A,
Littelfuse 451 series*
Output feed (2x): 0.94 A @ 1.92 V, 1.60 A @ 2.41 V
(5.64 W), remote regulated at +1.8 V, -1.8 V, ground
isolated
P1
Output fusing: On rear transition board at cable
connectors. Littelfuse 451 series, on each line.
P2
Materials: FR-4, copper, nickel/gold plating, aluminum,
package molding compounds, SnPb solder, ferrites,
ceramics
4
3
(ref. slide 4,7)
*Note: 300 A 32 VDC interrupt rating
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Other electrical equipment
• Two small blowers to be mounted on west end ring of the STAR magnet, Orion
Industries # OAB800AN-11-1B or similar
• Shaded-pole 125 VAC motor, 18 W, will be fused and grounded of course
• probably a flow or pressure sensor to be read out by slow controls (is not
an interlock)
• Gas system
• Anticipate a few temperature and pressure sensors to be read out by RS-232
or 20 mA loop, wired with appropriate cable, e.g. 2C 20AWG CMG
• Readout device in FGT electronics rack, connected to ethernet
• ethernet switch mounted in FGT rack or nearby
• optical fiber patch box (MIC box) in FGT rack for connection to DAQ room,
all fibers NEC type OFNR
• STAR trigger/clock signal cable to TCD rack (1A1) – Belden # 8166, NEC type CM
• laptop computer in FGT rack for local operation of FGT controls
• DAQ computer (1) rackmounted in DAQ room
• WSC field-shaping bias system (detailed on next slide)
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WSC field-shaping bias system
Glassman EH10N10, -10 kV w/ current limit
Fixed operating point tbd, expect approximately -5.5 kV
“Protection: Automatic current regulation protects the power supply against
all overload conditions, including arcs and short circuits. Fuses, surge
limiting resistors, and low energy components provide the ultimate
protection.
Remote Controls: Common, +10 volt reference, interlock, current monitor,
current program, voltage monitor, voltage program, HV enable/disable, and
ground provided on a rear panel terminal block.
External Interlock: Open off, close on.”
Becomes a new permit to
TPC cathode
Reynolds HV cable with series 531 connectors.
Rated 10 kV operation, 100% tested to 15 kV,
commercially assembled. Length approximately
50 feet, tbd.
Mating connector (Reynolds series 531) is
an integral bonded part of WSC – TPC
mechanical interface structure. Bias voltage
runs in from there to shroud electrode on
20kV silicone high voltage wire.
FGT Safety Review – 9/2/2009 BNL
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