Magnet Safety Systems – Magnet Common Project E. Sbrissa, G. Olesen – CERN/EP

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5 Standard equipment2.5 Standard equipment

As mentioned the MSS is a common project. For this purpose a series of signal conditioner and logic As mentioned the MSS is a common project. For this purpose a series of signal conditioner and logic modules has been developed and tested, identical for all experiments. Due to severe modules has been developed and tested, identical for all experiments. Due to severe restrictions regarding high tension, galvanic isolation, features and lifetime, no commercial restrictions regarding high tension, galvanic isolation, features and lifetime, no commercial components are available for this.components are available for this.

These modules will be used for safety systems in all LHC experimental magnets.These modules will be used for safety systems in all LHC experimental magnets.

To accommodate the modules, a complete chassis system has also been developed, which will be To accommodate the modules, a complete chassis system has also been developed, which will be common for both analogue and digital modules. It will consist of a standardized chassis, a common for both analogue and digital modules. It will consist of a standardized chassis, a monitoring module, and redundant power supplies. Each chassis will be connected to a monitoring module, and redundant power supplies. Each chassis will be connected to a centralized alarm system via a monitoring module. Together with the separate ventilator unit, centralized alarm system via a monitoring module. Together with the separate ventilator unit, this will be the basis of all MSS systems.this will be the basis of all MSS systems.

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5 Standard equipment2.5 Standard equipment

Analogue modulesAnalogue modules Dual Resistive Measurement module – DRMDual Resistive Measurement module – DRM Dual/Differential Voltage Measurement module – DVMDual/Differential Voltage Measurement module – DVM Dual Bridge Quench Detection module - DBQDDual Bridge Quench Detection module - DBQD

Digital modulesDigital modules Digital Input Module - DIMDigital Input Module - DIM Hard-wired Logic Module - HLMHard-wired Logic Module - HLM

Standard Chassis System - SCSStandard Chassis System - SCS EMC chassisEMC chassis Redundant power suppliesRedundant power supplies Analogue output modulesAnalogue output modules Monitoring moduleMonitoring module Ventilation moduleVentilation module

APC (API specific for each installation)APC (API specific for each installation)

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5 Standard equipment2.5 Standard equipment

CablesCables

Connectors (Connector/Signal standard in Appendix 2.5.5.1)Connectors (Connector/Signal standard in Appendix 2.5.5.1)

Rack systemRack system Rack typeRack type Rack controlRack control Heat exchangerHeat exchanger

Power control boxPower control box

Annunciator systemAnnunciator system

SynopticsSynoptics

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

Isolation amplifierOver-voltage protectionFilter

1600 Hz-6 dB/octInstrumentation amplifier

2 kV isolation

Main analogue signal0- +/-10 V

for GainxV in

Dual bi-level voltagediscriminator

Dual duration discriminator Opto-couplers

Power supply

Warning Output

Positive VoltageInput

Decoupling

Opto-couplers

Fuses

Buffer0 - +/- 10 V

To multiplicationmodule - AOM

Card Monitoring/Status Memorization

Buffer0 - +/-10 V

Front-paneloutput

Front-panelstatus indications

Reset

Warning OutputOn-boardtest

connectionsLatch Reset circuit

ManualReset

Dual memorisationFront-panel

statusindications

RemoteReset

Reset

Negative VoltageInput

Alarm Output

Alarm Output

Active filter10 Hz-12 db/Oct

Common Hard Dump Output

Off-set adjustment

Mode selection

PowerIn

CableTrace

Overrange/Front-endfault

MonitoringModule

Monitoring

Current source

Current Out

Current In

2.5.1.1 Analogue modules: Dual Resistive Measurement module2.5.1.1 Analogue modules: Dual Resistive Measurement module

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.1.1 Dual Resistive Measurement module – Input stage2.5.1.1 Dual Resistive Measurement module – Input stage

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.1.1 Dual Resistive Measurement module – Current source2.5.1.1 Dual Resistive Measurement module – Current source

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.1.2 Dual Voltage Measurement module – Differential stage2.5.1.2 Dual Voltage Measurement module – Differential stage

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.1.3 Dual Bridge Quench Detection module – Input stage2.5.1.3 Dual Bridge Quench Detection module – Input stage

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.1.4 Galvanic isolation2.5.1.4 Galvanic isolation

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.1.5 Voltage discrimination2.5.1.5 Voltage discrimination

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.1.5 Time discrimination2.5.1.5 Time discrimination

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.2.1 Digital Input Module2.5.2.1 Digital Input Module

10th of April 2003 ATLAS “MSS Specification”

Magnet Safety Systems – Magnet Common ProjectMagnet Safety Systems – Magnet Common ProjectE. Sbrissa, G. Olesen – CERN/EPE. Sbrissa, G. Olesen – CERN/EP

2.5.2.1 Hard-wired Logic Module2.5.2.1 Hard-wired Logic Module

16

16

16

16

From DIM2

From DIM3

From DIM4

Hard-wired logicmodulescommunication

20

ALTERA

Programmable LogicArray.

Hard-wired logic burnedin PROM.

Clockcircuit

Monitoring

Power

Status

Indication

Dumpacknowledge.

Only HLMwith DCCT!

From DIM1