ECS for Front-End crates MARATON

2

Introduction Front-End crates are powered by MARATON power supplies,

located on the platform, at the back of each Front-End crate, which have to be powered on before taking data.

One MARATON power supplies consists in 4 channel, all of them must be switched on/off in parallel.

MARATON power supplies are accessible via INFDAI1 PVSS project or via the main ECS LHCb project, which allows to switch on/off all or part of the power supplies.

3

Definitions RCM: Remote Control Module, the electronics board

which controls remotly the MARATON power supply.

Power Rectifier: transforms 220 AC into 380 DC

4

Location of hardware: plateform

Maratons are inside the cavern:

46u

free space (1u)

Deflector (2u)

Heat Exchanger (1u)

ECAL 13(9u)

Heat Exchanger (1u)

ECAL 14(9u)

Turbine (4u)

ECAL platform<- cryogenics beampipe ->

free space (1u)

Power Supply incl.

Power Supply incl.

Heat Exchanger (1u)

PRS 3(9u)

free space (1u)

Power Supply incl.

Connection coolingsystem (3u)

free space (4u)

46u

free space (1u)

Deflector (2u)

Heat Exchanger (1u)

ECAL 11(9u)

Heat Exchanger (1u)

ECAL 12(9u)

Turbine (4u)

free space (1u)

Power Supply incl.

Power Supply incl.

Heat Exchanger (1u)

PRS 2(9u)

free space (1u)

Power Supply incl.

Connection coolingsystem (3u)

free space (4u)

46u

free space (1u)

Deflector (2u)

Heat Exchanger (1u)

ECAL 8(9u)

Heat Exchanger (1u)

ECAL 9(9u)

Turbine (4u)

free space (1u)

Power Supply incl.

Power Supply incl.

Heat Exchanger (1u)

PRS 0(9u)

free space (1u)

Power Supply incl.

Connection coolingsystem (3u)

free space (4u)

Rack L3B01 Rack L3B02 Rack L3B04

46u

free space (1u)

Deflector (2u)

Heat Exchanger (1u)

ECAL 10(9u)

Heat Exchanger (1u)

Turbine (4u)

free space (1u)

Power Supply incl.

Heat Exchanger (1u)

PRS 1(9u)

free space (1u)

Power Supply incl.

free space (4u)

Rack L3B03

VFE Supply + conn.cooling (3u)

VME6u

free space (3u)

Version 17/01/06

46u

free space (1u)

Deflector (2u)

Heat Exchanger (1u)

ECAL 15(9u)

Heat Exchanger (1u)

ECAL 16(9u)

Turbine (4u)

ECAL platform<- barracks beampipe ->

free space (1u)

Power Supply incl.

Power Supply incl.

Heat Exchanger (1u)

PRS 4(9u)

free space (1u)

Power Supply incl.

Connection coolingsystem (3u)

free space (4u)

46u

free space (1u)

Deflector (2u)

Heat Exchanger (1u)

ECAL 17(9u)

Heat Exchanger (1u)

ECAL 18(9u)

Turbine (4u)

free space (1u)

Power Supply incl.

Power Supply incl.

Heat Exchanger (1u)

PRS 5(9u)

free space (1u)

Power Supply incl.

Connection coolingsystem (3u)

free space (4u)

46u

free space (1u)

Deflector (2u)

Heat Exchanger (1u)

ECAL 21(9u)

Heat Exchanger (1u)

ECAL 20(9u)

Turbine (4u)

free space (1u)

Power Supply incl.

Power Supply incl.

Heat Exchanger (1u)

PRS 7(9u)

free space (1u)

Power Supply incl.

Connection coolingsystem (3u)

free space (4u)

Rack L3B11 Rack L3B12 Rack L3B14

46u

free space (1u)

Deflector (2u)

Heat Exchanger (1u)

ECAL 19(9u)

Heat Exchanger (1u)

Turbine (4u)

free space (1u)

Power Supply incl.

Heat Exchanger (1u)

PRS 6(9u)

free space (1u)

Power Supply incl.

free space (4u)

Rack L3B13

VFE Supply + conn.cooling (3u)

VME6u

free space (3u)

Version 17/01/06

L3BXX U

L3BXX M

L3BXX L

5

Location of hardware: plateformHCAL Side C (Cryo) HCAL Side A (PZ)

46LVPS (3U)

46LVPS (3U)

44 44

42 Turbine 42 Turbine(4U) (4U)

40 40

38 38Free Space Free Space

36 (7U) 36 (7U)

34 34

32 32

30 VME 30 VME(6U) (6U)

28 28

26 Heat Exchanger (1U) 26 Heat Exchanger (1U)Free Space (1U) Free Space (1U)

24 24

22 Crate 23 22 Crate 24Crate Wiener Crate Wiener

20 (9U) 20 (9U)

18 18Power Supply incl. Power Supply incl.

16 16Heat Exchanger (1U) Heat Exchanger (1U)

14 Free Space (1U) 14 Free Space (1U)

12 12Crate 22 Crate 25

10 Crate Wiener 10 Crate Wiener(9U) (9U)

8 8

6 Power Supply incl. 6 Power Supply incl.

4 Heat Exchanger (1U) 4 Heat Exchanger (1U)Free Space (1U) Free Space (1U)

2 Air Deflector 2 Air Deflector(2U) (2U)

L3A01 L3A11

6

Location of hardware: B1B01 rack

Second Rack behind barracks,first level

Rack containing RCM and Power Rectifiers for CALO Maratons. This rack is only used by CALO.

7

Rack B1B01 (CALO RCMs)

Power rectifiers for C-side: corresponding MARATON is identifiedby a label on each box

RCM Crate for C-side

Power rectifiers for A-side: corresponding MARATON is identifiedby a label on each box

RCM Crate for A-side

8

How to switch on a crate from PVSS Before switching OFF a crate, ask the Shift Leader

to stop the run. Open the “Wiener Maraton Crates” status panel:

G:\online\ecs\Shortcuts311\INF\INFDAI1\INFDAI1_UI_lbRackMaratonCrateStatus.lnk (WINDOWS)

/group/online/ecs/Shortcuts311/INF/INFDAI1/INFDAI1_UI_lbRackMaratonCrateStatus.sh (LINUX)

9

Click to switch ON/OFF

Alternative method: from the main ECS project

Open LHCb FSM tree panel: G:\online\ecs\Shortcuts311\LHCb\ECS\

ECS_UI_FSM.lnk (WINDOWS)

/group/online/ecs/Shortcuts311/LHCb/ECS/ECS_UI_FSM.sh (LINUX)

In the DAI tree, right click on PRS/ECAL/HCAL_DAI

This will open:

Click on the Side

Locate the crate to switch ON/OFF, and click on the « READY » or « OFF » button.Select the « Switch_OFF » and « Swich_ON  »

13

In case of problems

In case of a DSS Alarm on the calo platform, power will be cut at the source (rack B1B01).

Before being able to switch on the Maratons back: DSS piquet (168000) and the run chief (161868)

have to be called to switch back on the power of the rack B1B01 (TDM Drawer)

The crate of the RCM has to be powered on manually going in the cavern

Power rectifiers have to be verified they are all ON

14

In case of problems

If one crate has to stay off for a given time (changing the boards inside, problem with the boards, etc...), to prevent from accidental switch on from PVSS: Switch off manually the corresponding power

rectifier Write in the log book why Put a sticker on the power rectifier with your name

Corollary: if a rectifier is OFF, look in the logbook why before switching it ON.