lhc collimators low level control changes

A Masi, LHC Collimators Low Level Control changes

LHC Collimators Low Level Control changes

A. Masi

1. Control system hardware upgrades2. Control system software changes3. Commissioning plan

Contents


1–Control system hardware upgrades

Old controls rack configuration New controls rack

Control cables protection system

New PXI high availability

chassis

Added KVM for PXI remote

management

Not touched !!!!



High Availability PXI chassis designed and manufactured for the

LHC collimators project

Redundant hot swappable power supply

Health Monitoring

card

Redundant easy replaceable fans



New electrical distribution chassis



TDI improvements• connection to the BETS • Installation of the interferometric gap measurement

system

Optical connectors

NI RDIO

HSSL Interface

Europa Crate

Redundant power-supply

Optical link cards to the BETS ready to be produced

• An additional FESA class will be added to publish and manage the interferometric gap measurement



LVDT Position drift due to external field

The I2PS is notaffected

- Optimized dimensions and winding parameters- Test Installation during 2012 Christmas Break- Ratiometric reading- 1 micrometer uncertainty with lower supply currents- Temperature compensation- No effect on the measured position of an external magnetic field

Possible replacement of some LVDT affected by magnetic interference problem with a new designed Ironless Inductive

Position Sensor (I2PS)

See CWG talk by A. Danisi on Sep 2013

20 I2PS including new electronic cards and collimator supports ready to be installed by end of

March• Waiting for feedback and

green light from CWG ….• What about injection

collimators ???


2–Control system software changes

Main software changes:• MDC (Motor Drive Control) : upgraded to LabView 2011,

software architecture improved and optimized • PRS (Position Readout & Survey) : upgraded to LabView

2011, software architecture improved and optimized, integrated reading of I2PS

• DIM library : updated and added a more efficient acknowledgement mechanism

• FESA class : completely re-written in FESA 3.0


2–Control system software changes

Impact for operation: • Added separation limits :

• PRS errors : Two new bits will be added for separation : B17 : POSITION_OUT_OF_SEPARATION B18: SEPARATION_TIMEOUT

• PRS warnings : A new bit will be added for separation : B5 : POSITION_OUT_OF_SEPARATION_WARNING

• A new allarm• Two new properties to define the Active IP:

- SeparationActiveIP : like betastar, used to select the separation value to be used- SeparationThreshold : like betastar, 4 2D arrays defining limits to be interpolated (Inner/Outer for gap upstream and downstream)

• Waiting for new telegram definition

• Some old alarms can be removed or simplified• Additional information have been added to the

postmortem buffer: - pmGapUpSeparationInnerLimit - pmGapUpSeparationOuterLimit - pmGapDownSeparationInnerLimit - pmGapDownSeparationOutererLimit - pmSeparationValue


3. Commissioning plan

Commissioning guidelines: • As for 2008 the following steps will be followed before

making the full system fully operational:• Hardware commissioning EN-STI• Position sensors calibration EN-STI + support of the collimation team for the new

collimators • Functional tests on the entire system or system subsets EN-STI + Collimation

Team• Machine Interlocks test Collimation Team• Dry-run BE-OP

• The interlocks cables have not been touched so the re commissioning of the interlock chain is not needed

• During the commissioning a complete functional test bench will be made available to test and validate the new control software by collimation team

• The commissioning will proceed on the old collimators if the new ones are not yet installed



Number of systems

Network Installation

230V power supply

R2E cabling

Control System

Installation

Systems ready for

commissioningSector

Cooldown LSector

Cooldown R

US15 4 OK In progress OK OK No 2 June 30 JuneUA23 6 + TDI OK In progress - OK No 30 June -UA27 2 OK In progress - OK No - 11 August

UJ33 7 - OK - Ok YES 11 August 15 September

USC55 4 No No No No No 22 September 28 JulyUS65 1 - In progress - OK No 28 July 5 May

TZ76 21 OK In progress In progress OK No 5 May 11 August

UA83 2 OK No - OK No 11 August -UA87 5 + TDI OK No - OK No - 2 JuneBA7 1 OK OK - OK YES - -

The commissioning plan is being defined according to the installation status and the dates of the cool down



Some preliminary dates:

• Beginning of March deployment of the new software images and FESA class on all the systems in the tunnel. The hardware commissioning starts …

• Mid of March Test bench on the new BPM collimator available for collimation team

• End of August the entire system will be again operational including the new collimators

lhc collimators low level control changes

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