Low Voltage Power Supplies for ALICE TB 26.7.04 L.Jirden Recall: target devices & possible solutions Outstanding actions Target devices Wiener PL500 F8: PL500 F12: Marathon: product exists; water cooling;
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Transcript Low Voltage Power Supplies for ALICE TB 26.7.04 L.Jirden Recall: target devices & possible solutions Outstanding actions Target devices Wiener PL500 F8: PL500 F12: Marathon: product exists; water cooling;
Low Voltage Power
Supplies for ALICE
TB 26.7.04
L.Jirden
Recall:
target devices & possible solutions
Outstanding actions
1
Target devices
Wiener
PL500 F8:
PL500 F12:
Marathon:
product exists; water cooling; some control
limitations
prototype exists; might not be
commercialized
Prototype exists; should replace F8, F12
Caen
SY1527:
Easy
Sasy
product exist; no water cooling
prototype exist; B-field tolerant
prototype exist; high B-field tolerant
Arem Pro
Device
H/W prototype exists; no water cooling
2
Wiener Marathon system
230 VAC
PFC
AC/DC
CANbus
CR
UX
CANbus
Digital
control
380 VDC
230 VAC
PFC
AC/DC
B-tol: 1200 gauss
Rad tolerant
B-tol: 300 gauss
Rad tol: ?
Digital
control
Power modules
Water cooling
DC/DC
Analog
control
Power modules
B-shield 3
Caen Easy system
230 VAC
B-tol: 50 gauss
Rad tol: ?
UX
Branch
controller
SY1527
mainframe
Power
supply
CR
ethernet
48 VDC
CANbus
EASY :B-tol: 1000 gauss
:Rad tol
SASY : B-tol: 5000 gauss
: Rad tol
Digital Digital Digital
control control control
DC/DC DC/DC DC/DC
no cooling
4
Arem Pro PS
ethernet
CR
UX
230 VAC
B-tol: ? gauss
Rad tol: ?
RS232
no cooling
crate module module
control control control
AC/DC AC/DC AC/DC
power power power
5
LVPS – possible solutions I
Detector PS chan
[no]
SPD
20
or
240
SDD
Target device
Wiener Marathon
Module Crates When
[A]
[no]
required
50
4
Caen Easy
9
4
216
Arem Pro ??
6
SSD
448
Caen SY1527 ??
TPC
72
TRD
Common
purchase
4Q05
Yes?
6
4Q05
?
3.6
5
?
?
Wiener Marathon
50
22
4Q05
yes
180
Wiener Marathon
50?
45?
3Q05
yes
TOF
?
Caen Sasy
?
?
?
no
HMPID
100
Wiener Marathon
30?
14?
3Q05
Yes, commit
before 05
6
LVPS possible solutions II
Detector PS chan
[no]
Target device
Module Crates When
[A]
[no] required
Common
purchase
PHOS &
CPV
11
Wiener Marathon
20 –
115?
5?
?
yes
FMD
?
?
?
?
?
?
T0
4
Caen Easy
?
1
?
yes
V0
?
Caen Easy
?
1
?
?
PMD
?
Wiener Marathon
?
?
?
yes
ZDC
?
?
?
?
?
?
MTK
364
Wiener Marathon
25?
31?
2Q05
yes
MTG
16
Wiener Marathon
115?
2?
4Q04
yes
TOTAL
1461 +
?
3 manufacturers 5 types
3.6 250
136 +
?
4Q044Q05
9 yes; 5 ?;
1 no
7
Outstanding actions
Send out market survey:
done
end June
Finalize ALICE requirements:
before mid August
Electrical characteristics: as drafted unless protests
Suggested size of modules: 10A, 30A, 50A,
with possibility to operate modules in parallel to at least 250A
control functions:
Remote voltage control: ?
Grouping: yes (if not too expensive)
Remote power on/off: yes (if not too expensive)
Radiation policy: TC 30 August 04
Issue the tender: early September
Finalize technical spec:
Merge ALICE requirements with other experiments
Final draft to detectors end August for ok
Send out tender
8
9
Detector requirements
Quantities
ALICE total ~160 LVPS crates and ~2000 PS channels
Draft technical specification (Spec)
Electrical characteristics
Mechanical characteristics
Monitoring and control
Cooling
Environment
Standard chapters on:
construction, safety, reliability, quality assurance,
documentation
10
Spec:
Electrical Characteristics
DC Output
Modular design; 2 – 7 V, 4 – 250 A modules
LVPS
2 – 7 V, 4A
24h stability < 5mV or 0.1%
6m stability < 20mV or 0.5%
Noise & ripple < 10mV p to p
LVPS
2 – 7 V, 250A
11
Spec:
Mechanical Characteristics
TYPICAL RACK LAYOUT
FRONT VIEW
4U
VENTILATOR & CONTR.
1U
HEAT EXCHANGER
max 6U
LV PS
max 6U
LV PS
1U
SIDE VIEW
300 mm
SPACE
FOR
CABLES
600 mm
LV PS
LV PS
HEAT EXCHANGER
LV PS
12
Spec:
Monitoring & Control
Two options:
a) Via CANbus
b) Via Ethernet
Ethernet
PC
OPC Server
PCI “Kvaser”
Provided by
manufacturer
PC
OPC Server
CANbus
LOCAL
PANEL
LOCAL
PANEL
LVPS 1
External interlock
LVPS 1
13
Spec: MONITORING AND
CONTROL FUNCTIONS
MON = MONITOR
ESS = ESSENTIAL
FUNCTIONS/PARAM
CON = CONTROL
DES = DESIRED
VOLTAGES
MON CON
Individual channels
ESS
CURRENTS
MON
12 bit resolution
ESS
RAMPING RATE
MON CON
Individual channels
DES
TEMPERATURE
MON
Sensor above power circuits
ESS
OVER-CURRENT TRIP OFF MON CON
VALUE
Individual channels
ESS
FAN STATUS
MON
Out of limit warning
ESS
OVER-VOLTAGE STATUS
MON
Individual channels
DES
OVER-CURRENT STATUS
MON
Individual channels
ESS
OVER-TEMP
MON
Out of limit warning
ESS
14
Spec: MONITORING AND
CONTROL FUNCTIONS
MON = MONITOR
ESS = ESSENTIAL
FUNCTIONS/PARAM
CON = CONTROL
DES = DESIRED
DC TRIP OFF
MON
RESET DC TRIP OFF
Individual channels
Global DC power
ESS
ESS
CON Individual channels
Global DC power
ESS
ESS
DC POWER ON/OFF
MON
CON Individual channels
Global DC power
ESS
ESS
AC POWER ON/OFF
MON
CON using external power
DES
PS HEALTH
MON
Summary status
DES
LOCAL CONTROL
MON
Remote control locked out
ESS
PS RESET
CON System reset (tbs)??
ESS
15
Spec: MONITORING AND
CONTROL FUNCTIONS
GROUP MANAGEMENT:
THE POSSIBILITY TO CONFIGURE AND
PERFORM FUNCTIONS ON GROUPS OF
CHANNELS WITHIN A CRATE
FUNCTIONS/PARAM
MON = MONITOR
ESS = ESSENTIAL
CON = CONTROL
DES = DESIRED
VOLTAGES
CON
Groups of channels
DES
DC POWER ON/OFF
CON
Groups of channels
DES
RAMPING RATE
MON
CON
Groups of channels
DES
OVER-CURRENT TRIP
OFF VALUE
MON
CON
Groups of channels
ESS
16
Spec: OPC SERVER
General
Compliance with OPC standards
No effect on PS output due to failure of remote
control
Restart of OPC remotely
Not send set points automatically at startup – read
from device
PS shall maintain its set points during PS power failure
Genuine device and cache access
Interactive list of device functions
17
Spec: OPC SERVER
Maintenance
To support future versions of Windows and OPC
standards
To support future versions of PS firmware
Configuration
Allow appropriate management of the fieldbus
Human readable configuration file (such as XML)
Obtain actual configuration by scanning
Setting of ranges for analog values and setting of the
dead band
18
Spec: OPC SERVER
Performance
Change in Device to OPC:
max
max
Device cache to OPC client:
max
Write from OPC to device:
max
Interlock to start ramp-down: max
10 sec at full bus load
1 sec for a single PS
3 sec for all parameters
1 sec
5 ms
19
Spec: cooling, etc.
Cooling
Environment
Total dose: 10 mGy
up to 200 Gauss
Fluency: 109 n/cm2
Halogen free material
Safety regulations
Radiation
Magnetic Field
Construction
Use of standard ventilators not possible due to stray magnetic fields
Water cooling recommended
Installed in rack with assured vertical airflow removing max 3kW/rack
CE certification
Reliability
MTBF > 90 000 hours (excluding ventilators)
20
Spec: QA, documentation
Quality assurance
Production tests
Functional tests
Load tests
Documentation
User’s guide
Reference manual
Test and calibration reports
21