Powering the VELO during Shift

During shift we give the VELO to the global commissioning. We retain the High and Low Voltage as we only want VELO experts operating the voltages for the safety of the detector. This will also be true for the Motion and Cooling.

ALERT! If the VELO ECS top panel looks like below then the VELO is configured, control has been handed to the LHCb shift crew and you have nothing to power on: ALERT!

Step 1: open the VELO ECS panel

  1. Open the main Velo ECS FSM at G:\online\ecs\Shortcuts\VELO\VEECS1_UI_FSM

  2. Right click on VELO and open the top panel

  3. Take the project

  4. HV and DCS (and currently monitoring) nodes are currently locked out and not under global control

  5. HLT and other resources are currently unallocated.

Step 2: turn on the High Voltage (HV)

  1. Click on VELO_HV

  2. Currently HV should be off. Click VELOA_HV to go to the A side

  3. Click VELOA_HV_Go_READY from the top menu


  5. The status will change to VELOA_HV_RAMPING_READY

  6. When the voltage finishes ramping up the status will change to VELOA_HV_READY

  7. The HV rows on the A side of the summary panel will change to green and look as follows

  8. Start from step 1 replacing VELOA with VELOC

Step 3: turn on the Low Voltage (LV)

  1. Return to the Velo top panel and click VELO_DCS_TOP to get the following panel

  2. Click on the A side: VELOA_DCS_TOP

  3. Switch on the Low Voltage:

  4. When the voltage is on the panel looks like this:

  5. And the +5V on the LV section on the Summary Panel changes to green and shows the current

  6. Repeat for the C side starting from VELOC_DCS_TOP. Th monitoring panel should look like this:
Topic attachments
I Attachment History Action SizeSorted descending Date Who Comment
PNGpng Summary_panel_LV_READY.PNG r1 manage 84.5 K 2008-08-18 - 19:52 UnknownUser Summary_panel_LV_READY
PNGpng Summary_panel_VELOA_LV_READY.PNG r1 manage 83.3 K 2008-08-18 - 19:51 UnknownUser Summary_panel_VELOA_LV_READY
PNGpng Summary_panel_HV_READY.PNG r1 manage 81.7 K 2008-08-18 - 19:40 UnknownUser Summary_panel_HV_READY
PNGpng VELOA_DCS_LV_Switch_ON.PNG r1 manage 76.8 K 2008-08-18 - 19:49 UnknownUser VELOA_DCS_LV_Switch_ON
PNGpng VELOA_DCS_LV_TOP_READY.PNG r1 manage 71.4 K 2008-08-18 - 19:51 UnknownUser VELOA_DCS_LV_TOP_READY
PNGpng VELOA_HV_RAMPING_READY.PNG r1 manage 62.1 K 2008-08-18 - 19:39 UnknownUser VELOA_HV_RAMPING_READY
PNGpng VELO_TOP_NOT_ALLOCATED.PNG r1 manage 62.0 K 2008-08-18 - 19:21 UnknownUser VELO_TOP_NOT_ALLOCATED
PNGpng VELO_ECS_TOP_handed_over.PNG r1 manage 61.1 K 2008-08-19 - 16:46 MarkTobin VELO ECS top panel when running in LHCb
PNGpng VELOA_HV_READY.PNG r1 manage 60.1 K 2008-08-18 - 19:39 UnknownUser VELOA_HV_READY
PNGpng VELO_TOP.PNG r1 manage 58.5 K 2008-08-18 - 19:19 UnknownUser VELO_TOP
PNGpng VELOA_HV_Go_READY.PNG r1 manage 58.1 K 2008-08-18 - 19:38 UnknownUser VELOA_HV_Go_READY
PNGpng VELOA_HV_TOP_OFF.PNG r1 manage 56.2 K 2008-08-18 - 19:37 UnknownUser VELOA_HV_TOP_OFF
PNGpng VELOA_DCS_TOP.PNG r1 manage 21.4 K 2008-08-18 - 19:40 UnknownUser VELOA_DCS_TOP
PNGpng VELO_DCS_TOP.PNG r1 manage 21.2 K 2008-08-18 - 19:40 UnknownUser VELO_DCS_TOP
PNGpng VELO_HV_TOP_OFF.PNG r1 manage 20.1 K 2008-08-18 - 19:21 UnknownUser VELO_HV_TOP_OFF
PNGpng VELOECS1_UI_FSM.PNG r1 manage 10.3 K 2008-08-18 - 19:18 UnknownUser VELOECS1_UI_FSM
PNGpng LockedOutNodes.PNG r1 manage 9.4 K 2008-08-18 - 19:20 UnknownUser LOCKEDOUTNODES
PNGpng SEND_PHYSICS.PNG r1 manage 4.9 K 2008-08-18 - 19:38 UnknownUser SEND_PHYSICS
PNGpng TAKE.PNG r1 manage 3.4 K 2008-08-18 - 19:20 UnknownUser TAKE
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Topic revision: r3 - 2008-08-19 - MarkTobin
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