investigated solutions and market survey for the hv lv sub systems n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Investigated solutions and market survey for the HV-LV sub-systems PowerPoint Presentation
Download Presentation
Investigated solutions and market survey for the HV-LV sub-systems

Loading in 2 Seconds...

play fullscreen
1 / 23

Investigated solutions and market survey for the HV-LV sub-systems - PowerPoint PPT Presentation


  • 99 Views
  • Uploaded on

Investigated solutions and market survey for the HV-LV sub-systems. LV-HV Sub-systems CAEN solution : Resulting detector segmentation. MCM4. MCM1. MCM2. MCM6. MCM7. MCM3. MCM9. MCM10. MCM11. MCM12. MCM5. MCM8. ADC4. ADC3. ADC2. ADC1. FEE. FEE. FEE. FEE 1. FEE 2. FEE 4.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Investigated solutions and market survey for the HV-LV sub-systems' - quin-serrano


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
investigated solutions and market survey for the hv lv sub systems
Investigated solutions and market survey for the HV-LV sub-systems

g.de cataldo-A. Franco INFN bari

slide2

LV-HV Sub-systemsCAEN solution:Resulting detector segmentation

MCM4

MCM1

MCM2

MCM6

MCM7

MCM3

MCM9

MCM10

MCM11

MCM12

MCM5

MCM8

ADC4

ADC3

ADC2

ADC1

FEE

FEE

FEE

FEE 1

FEE 2

FEE 4

FEE 5

FEE 7

FEE 8

3

6

9

H6

H3

H9

H5

H4

H8

H1

H7

H2

12 MCM Segments

4 ADC Segment

9 FEE Segments, 180 (120) GASSIPLEX each

9 HV Segments, 36 (24) wires each, this requires a grouping of 12 sense wires

Power requirements/segment

V A W

FEE+ +2.8 4.8 (3.2) 13.5 (9.0)

FEE- -2.8 5.0 (3.4) 14.0 (9.5)

ADC+ +5 2.0 10.0

ADC- -5 2.0 10.0

MCM +5 3.0 15.0

7 x HMPID MODULE

3 x CAEN SY1527(TCP/IP protocol)

Boards:

9 x A1517 3V-6A(prot. by the end of 6/2001)

11 x A1518 5V-3.6A(.. by the end of6/2001)

6 x A1821A 3kV(Delivered and test under way)

g.de cataldo-A. Franco INFN bari

layout of the caen solution
Layout of the CAEN solution

Rear view

Front view

g.de cataldo-A. Franco INFN bari

slide4

2 MCM Segments

1 ADC Segment

6 FEE Segments, 480 GASS. each

6 HV Segments, 48 wires each

MCM1

MCM2

ADC1a

ADC1b

FEE 6

FEE 4

FEE 3

FEE 1

FEE 5

FEE 2

H3

H4

H1

H2

H6

H5

LV-HV Sub-systemsWIENER or EUTRON based solution: assumed detector segmentation

Power requirements for each segment

V A W FEE+ +2.8 5.9 17.8

FEE- -2.8 6.8. 18.7

ADCa+b +5 8.0 40.0

ADCa+b -5 8.0 40.0

MCM +5 18.0 90.0

For both these solutions, the HV PS is still based on the CAEN SY1527

g.de cataldo-A. Franco INFN bari

slide5

The Master Power Box can operate via

  • RS232 up 8 slave crates
  • CANbus up to 127 crate
  • TCP/IP offers performance for larger numbers of channels.

FEE : 42 segments x 2 polarity

 84 modules (2.8Vx12.7A=36.5W)

MCM : 14 segment

14 modules (+5Vx18A=90W)

ADC : 7 segments x 2 polarity

14 modules ( 5Vx16A=80W)

Layout of the WIENER LV units

Master Power Box

Master power 3U box:

Max DC Power/box =2.5 KW

Up to 12 PL600 modules/box

One module consist of one floating ch.

2..7V - 25A max 175W

g.de cataldo-A. Franco INFN bari

slide6

EUTRON PS Units

3 x EUTRON BVD 720S 0..8 v 25 A

1 x EUTRON BVD 1500S 0..8 v 50 A

PLC SIEMENS S7300

Connecting and sensing Board

TO HMPID MODULES

Layout of EUTRON-PLC devices

For the EUTRON solution the power switching and sensing of each LV channel are based on a Siemens PLC system (relays and ADC modules) and a custom sensing board. This solution requires a control program developed ad hoc by the user.

g.de cataldo-A. Franco INFN bari

first cost estimation cables and connectors not included
First cost estimation(cables and connectors not included)
  • CAEN HV-LV
  • EUTRON LV + CAEN HV

(PLC software development not included)

  • WIENER+ CAEN HV

LV HV

€ CHF € CHF

111.350 172.500 23.150 36.000

66.200 102.500 30.100 46.700

56.800 88.000 30.100 46.700

g.de cataldo-A. Franco INFN bari

slide8

The EUTRON-PLC Control System

  • Requirements list;
  • The control system as a Finite State Machine; (bubble chart)
  • Apparatus layout and technical specifications of the sensing board;
  • the PLC readout software.

g.de cataldo-A. Franco INFN bari

E. Carrone,

slide9

The Requirements list

It is intended to specify all the procedures to operate properly the LV power supply units while connected to the FE electronics. An incomplete example could be:

  • FEE LV switching ON: since the FEE requires ±2.8 V then both these polarities must be supplied contemporary,
  • FEE LV switching OFF: before a FEE segments is switched OFF, the facing HV segment (see St.Rep3 at http://richpc2.ba.infn.it) must be switched OFF. This sequence is mandatory to prevent FEE breakdowns due to charge accumulation on the MWPC cathode pads. (In fact the ground reference to the MWPC sense wires is ensured trough the FE electronics, then the low voltage at the corresponding FE electronics segment must be applied before the HV segment is switched ON);
  • Current and voltage ranges: Vload Iload must be in the admissible range: Vmin < Vload < Vmax, Imin < Iload < Imax. If Iload > Imax then the corresponding HV-LV segments must be automatically switched OFF according to FEE LV switching OFF sequence
  • Alarms handling …

g.de cataldo-A. Franco INFN bari

E. Carrone,

slide10

The control system

as a Finite State Machine:

state definition

Taking into account the requirement list and how to properly operates the EUTRON units, the following “states” have been defined:

  • OFF ( P.S. in Standby, relays OFF and Vout=0)
  • Calibration (reading Voutput from units)
  • Configuration (FEE segment selection)
  • Standby (LV system in STBY status)
  • ON (Ready For Physics: P.S. STBY removed, check ofCurrent/Voltage values)

g.de cataldo-A. Franco INFN bari

E. Carrone,

lv c s representation

Alarm

Condition

COMMANDS

COMMANDS

START

START

CALIBRATE

RUN

START

CONFIGURE

FILL

CONFIGURE

STOP

PURGE

SUSPEND

STOP

FEED

MAN

CONF

RESET

RESET

STOP

STBY

CAL

SUSPEND

FEED

CALIBRATE

STATES

OFF

CALibration

ON

ALARM

OFF

CONFiguration

RESET

STBY Standby

ON Ready

ALARM

LV C.S. representation

When the ON state is active Iload and Vload are monitored on all the active FEE segments. If one of these values is out of range then the relevant FEE segment is switched OFF and the HV system is contemporary notified to switch OFF the corresponding HV segment.

During the transition ON->STBY the HV status must be checked and if it is HV-ON then the LV C.S. must kill the HV system.

STATES

OFF

Stop

Running

Filling

Ready

LV: the bubble chart representation

g.de cataldo-A. Franco INFN bari

E. Carrone,

slide12

Power Supply

Dummy resistive Load

NT

Workstation

CH1/2

Power line

Sensing

Board

Set and reading PS Vout

Vload sensing

line

Ethernet

Iload

sensing line

from-to

PLC relays

Siemens

S300 PLC

Apparatus Layout

In order to split the PS current into several channels, each one connected to one FFE segment, a PLC relays module is used. The Vload-Iload measurement is based on a sensing board read out via 8CH ADC module.

Power Supply:

EUTRON

BVD720S, 0-8V, 0-25 A.

PLC:

Siemens S300

Analog Inputs 8 x 12 bit.

g.de cataldo-A. Franco INFN bari

E. Carrone,

slide13

Vs -

Vs +

Sensing Board

g.de cataldo-A. Franco INFN bari

E. Carrone,

slide14

Signal Conditioning

The input stage of the ADC accepts the max Common Mode Voltage UCM= 2.5V. This imposes a Vsensing attenuation via a resistive net (UCM= (Vin+Vo)/2  3.9 V) .

THE NET RESISTOR

æ

ö

æ

ö

R

2

R

4

R

4

=

-

=

-

+

ç

÷

ç

÷

V

V

V

V

V

+

+

-

+

sr

s

s

in

sen

sin

g

+

+

+

R

1

R

2

R

3

R

4

R

3

R

4

è

ø

è

ø

+

(

)

R

4

R

3

R

4

=

+

Þ

=

-

V

V

V

V

V

V

+

+

sr

ped

sen

sin

g

sen

sin

g

sr

ped

+

R

3

R

4

R

4

In order to measure the Vped, Rsens has been put in short circuit (Vsensing=0) and this resulted in Vped=5 mV. To evaluate the Ucm attenuation factor A= R4/(R3+R4), Vsr and Vsensing have been measured and it resulted in A=0.1325:

Vsensing = (Vsr - Vped)/A

Finally

Iload = Vsensing / Rsens

With the ADC LSB of 22.4 mV in the range +-80mV, a current sensitivity

d=LSB/A*Rs= 2.8 mA

on the Iload is achieved. This allows the C.S. to detect the single FEE chip failure which drains 45 mA per polarity.

g.de cataldo-A. Franco INFN bari

E. Carrone,

slide15

Process Input Word

ADC “brute” value

PIW 288 “V sensing + ADC” --- DEC 8872

PIW 290 “V sensing – ADC” --- DEC -14440

PIW 292 “V load + ADC” --- DEC 15496

PIW 294 “V load – ADC” --- DEC -15496

MD 100 "I load +“ --- REAL 3.737275

MD 108 "I load -“ --- REAL -4.101968

MD 132 "V load +“ --- REAL 2.802372

MD 124 "V load -“ --- REAL -2.802372

MD 20 "V sensing + input ADC“ --- REAL 25.67129

MD 28 "V sensing - input ADC“ --- REAL -41.7824

[V]

[A]

Memory Double Word

[mV]

PLC VAT (Variable Table)

g.de cataldo-A. Franco INFN bari

E. Carrone,

slide16

PLC Instruction List

NETWORK

TITLE =Sensing Current CH +

AN Q 4.1;

S Q 4.1;

  AN Q 4.2;

S Q 4.2;

  AN Q 4.0;

S Q 4.0;

  AN Q 4.3;

S Q 4.3;

L PIW 288;

ITD ;

DTR ;

L 2.893518e-003;

*R ;

T “V sensing + input ADC";

  L 5.000000e+000;

L “V sensing + input ADC";

+R ;

T MD 68;

  L MD 68;

L 7.566840e+000;

*R ;

T MD 84;

  L MD 84;

L 6.210000e+001;

/R ;

T "I load +";

Relays switches

ADC reading   value [mV]

Integer: 16 bit 32 bit

Pedestal offset

Integer 32 bit   IEEE-FP 32 bit

1/A where A=attenuation factor

V  I Conversion

g.de cataldo-A. Franco INFN bari

E. Carrone,

slide17

Control System for the CAEN SY1527 in the PVSS environment.

The Configuration Program

A devoted program reads from a file the HV sub-system configuration ( # HMPID modules, HVsegment/module) and creates the DataPoint data base in the PVSS environment.

These data points are automatically created according to the specified variables (Crate/Board/Channel) of the CAEN OPC Server and it sets a link between the OPC variable addresses and the PVSS data base.

g.de cataldo-A. Franco INFN bari

monitoring panel of the hmpid hv system

Monitoring panel of the HMPID HV System

Alarm condition

Link to the Monitoring Panel of SY1527

Link to the Monitoring Panel of the HV segment

Segment disabled

“Burned-out” Segment

Link to the

Enable/Disable

Panel

Link to the

Channel Configure Panel

g.de cataldo-A. Franco INFN bari

monitoring panel of the hv segment when the caen sy1527 opc serv is running
Monitoring panel of the HV Segment (when the CAEN SY1527 OPC serv. Is running!)

Channel settings

Channel Status

HV-ON

Channel Name

Actual value of Parameters

Trend display settings

Trend parameter Chart

g.de cataldo-A. Franco INFN bari

enabling disabling hv segments
Enabling/disabling HV Segments

Option for global Enable/Disable action

Segment Enabled

Segment Disabled

Exit

g.de cataldo-A. Franco INFN bari

hv channel configuration
HV Channel configuration

Parameter Value

Parameter Name

Cancel all the changes

Save the present configuration

Exit

g.de cataldo-A. Franco INFN bari

sy1527 control panel
SY1527 Control panel

Inserted board status

Board description

Power

System Name

Empty slot

Crate Alarm condition

Crate Front panel status

Fan & Power unit Status

Crate commands

Crate settings

g.de cataldo-A. Franco INFN bari

hmpid dcs lv prototype panel
HMPID DCS: LV prototype panel

g.de cataldo-A. Franco INFN bari