LHC Collimators Low Level - PowerPoint Presentation

Slide1

LHC Collimators

Low Level Control Commissioning status

A. Masi

Control system hardware upgradesControl system software changesCommissioning status

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 !!!!

1

–

Control system hardware upgrades

High Availability PXI chassis designed and manufactured for the LHC collimators project

Redundant hot swappable power supply

Health Monitoring card

Redundant easy replaceable fans

1

–

Control system hardware upgrades

New electrical distribution chassis

1

–

Control system hardware upgrades

TDI improvementsconnection 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

1

–

Control system hardware upgrades

LVDT Position drift due to external field

The I2PS is not

affected

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

10 LVDT affected by magnetic interference problem replaced with a new designed Ironless Inductive Position Sensor (I2PS)

See CWG talk by A. Danisi on Sep 2013

1

–

Control system hardware upgrades

New temperatures sensors integration140 new temperature sensors integrated in the existing PLC monitoring systemHardware commissioning successfully performed

New

configurations files generated for the

UNICOS framework

Monitoring software commissioning with EN-ICE automatic scripts in progress

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_WARNINGA 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

3

.

Commissioning

status Number of systemsNetwork Installation

230V power supply

R2E cabling

Control System Installation

Systems ready for commissioning

US15

4

OK

OK

OK

OK

OK

UA23

6 + TDI

OK

OK

-

OK

OK

UA27

2

OK

OK

-

OK

OK

UJ33

7

-

OK

-

Ok

YES

USC55

4

OK

OK

OK

OK

OK

US65

1

-

OK

-

OK

OK

TZ76

21

OK

OK

OK

OK

OK

UA83

2

OK

OK

-

OK

OK

UA87

5 + TDI

OK

OK

-

OK

OK

BA7

1

OK

OK

-

OK

YES

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

3

.

Commissioning

statusEN-STI Hardware commissioning status TaskStatusCommentsCollimators + control system functional HW commissioning

Completed

Position sensors calibration and validation

Completed

Including the new I2PS sensors

Interlock

s chain HW tests

Completed

Remote Reset tests

Completed

Remote Torque measurements

CompletedNew temperature sensors

integration in UNICOSCompleted

Temperatures hardware commissioningIn progress

Expected to finish by the end of the week (2/03/2015)

3

.

Commissioning

statusTask: Software (i.e. all the chain FESA + DIM + PRS/MDC) functional testStatus: CompletedAction: STITest plan coverage percentage: 80 %

Tool used:

Test bench in 272

+

Our

own custom

sequencerComments: the test plan is not able to cover:Beta star and energy limits dynamic test

Timing payloads

Stress conditions related to the operation of several collimators on the same gateway What have been missing in our tests plan

3

.

Commissioning

statusTask: Stress tests on the low level software Status: In progressAction: STI/Collimation team Test plan coverage percentage: try to cover at least the 1st year operation cases

Tool used:

All the LHC collimators

+

most demanding

operational sequences

Comments: The idea is to stress the system as much as possible and to cover the rare operational scenarios. For instance:The longest profiles possible

Exceptions test (i.e. bad profiles, bad limits, commands to be rejected in the current state)

Stop/Resume profilesUnusual tilt conditions

3

.

Commissioning plan

Task: Operation commissioning Status: In progressAction: Collimation team Test plan coverage percentage: try to cover at least the 1st year operation casesTool used:

All the LHC collimators

+

common operational sequences

Comments:

The goals are:

Discover functional bugs escaped to our functional verificationAnalyze system health data during the system normal operation

Discover as much as possible problems on the new hardware

4. Conclusions

All the LHC collimators are operational and are in commissioning phase

The last months operation

of the entire system has been precious to detect hardware problems, verify the behavior of the low level with several collimators in parallel, discover bugs escaped to our validation procedureA special thank to the collimation team for their

efforts and the strong interaction with the experts

In the coming 3 weeks the effort should focus on the extension of the operation test plan coverage to take into account at least the 1

st

year of operation

The key of success is testing, testing and again testing ….