MPOD commissioning ENH1

Test Procedure

MPOD-01 and MPOD-02 are reserved for LV boards while MPOD-00 is for HV boards and they are located in the main rack 1. Each board has 8 channels, first 4 channels (e.g.: 0-3) can be read from the upper connector while other 4 channels (e.g.:4-7) from the bottom connector on each LV boards.

The LV channels can be controlled/displayed either through MPOD front panel (detailed instruction can be found on: MPOD Features.) or FSM. The MPOD commissioning has been performed in 2 categories. Step by step test procedure is explained below.

1. Basic mapping in FSM:

  • Connect to FSM in ENH1.

//login to the faser dcs in ENH1

ssh -XYC

//run the script to open the FSM interface.

source /data/

  • After you run the script the FMS interface will appear.

  • To see the list of channels click on "Show" button.
    • First 18 channels are reserved for HV channels (e.g: FASERDCS1:STATION0/LAYER0/MODULES0-3/HV)
    • Rest of the channels in the list reserved for LV channels. (e.g: FASERDCS1:STATION0/LAYER0/MODULE1/VDD)
  • Choose one of the channels you want to control by clicking on it. Another window will appear related to the selected channels.
    • Channels settings window will appear when you click on "Show" button.
      • The panel at the top left the values for the analogue VCC and digital VDD voltage appear.
      • The panel at the bottom left indicates whether the modules are “OFF” or “ON” status.

  • Check the status of the channels in FSM and MPOD control panel. Make sure all channels are "OFF" status.

  • Switch on each channel/module in FSM individually.

2. Hardware-wise:

  • Cabling and test set up for LV Channels :
  • Tracker LV PS Cable 02 should be connected from MPOD LV boards to PP. (Only one cable was used to check each LV channels.)

  • Read states and voltage values from the screen of MPOD. Measure VCC/VDD voltage values using a multimeter on the patch panel. Compare the values. Nominal LV values: LV values are VDD ~4V and VCC ~3.5V.
  • Repeat the same procedure for other LV boards by moving the LV cable from one connector to other for each board.

  • Cabling and test set up for HV Channels
  • HV interlock cable 2 should be connected from MPOD HV boards to TIM.
  • HV power to splitter cable 1 should be connected from MPOD HV boards to HV spitter "IN".
  • HV splitter to tracker cable 1 should be connected from HV splitter "OUT"-"CH0" connector to PP.

  • Set the voltage values on FSM (from 10 to 150V ). Measure the voltage values using a multimeter on Patch Panel side. The HV set and read back values should match on both FSM and PP. Nominal HV value is 150V.
  • Repeat the same procedure for "OUT-CH1", "OUT-CH2", "OUT-CH5", "OUT-CH6", "OUT-CH7" on HV splitter ("OUT-CH6", "OUT-CH7"). and for other 2 HV boards. .
-- HidetoshiOtono - 2020-03-19
Topic attachments
I Attachment History Action Size Date Who Comment
PNGpng FSMwindow.png r1 manage 1382.5 K 2020-03-19 - 08:43 DiWang  
PNGpng HVLV_unit.png r1 manage 412.8 K 2020-03-22 - 14:00 CandanDozen  
PNGpng HV_test_setup.png r1 manage 3516.2 K 2020-03-22 - 13:04 CandanDozen  
PNGpng HV_testsetup.png r1 manage 6185.6 K 2020-03-22 - 14:32 CandanDozen  
PNGpng LV_test_setup.png r1 manage 4685.4 K 2020-03-22 - 13:04 CandanDozen  
PNGpng PPVDDVCC.png r1 manage 120.6 K 2020-03-22 - 14:32 CandanDozen  
PNGpng mpod_LVboards.png r1 manage 602.4 K 2020-03-22 - 13:04 CandanDozen  
PNGpng mpod_connection.png r1 manage 325.5 K 2020-03-19 - 08:41 DiWang  
PNGpng mpod_explain.png r1 manage 109.3 K 2020-03-19 - 08:41 DiWang  
PNGpng mpod_measure.png r1 manage 138.3 K 2020-03-19 - 08:44 DiWang  
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Topic revision: r5 - 2020-05-09 - CandanDozen
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