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← Revision 11 as of 2016-02-05 10:10:14 ⇥
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| 2016/2/4 15:00 - | 2016/2/4 15:00 - |
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| == Agenda == | Participants: Takahashi, Aso, Mark, Shoda, Raffaele, Akutsu, Okutomi, Fujii, Sekiguchi == Minutes == |
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| * https://db.tt/vg6TQYYa * https://db.tt/xKopUuUz |
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| * Identify missing parts * Improvement for bKAGRA * Other suspensions |
* We went through the cables for PR3. * Overview diagram was drawn on a white board ([[attachment:IMG_2565.jpeg|picture]]) * Blue double circles indicates cables to be replaced from the test hanging (because of wrong pin-out). * Red check marks mean we checked the corresponding cable * Missing parts -> nothing * Connection between an LVDT driver and an ADC required a gender changer. Against the general policy of KAGRA electronics, the output connector of the LVDT driver is male (output should be female in the policy). Therefore, a gender changer was necessary. We should add a gender changer at the output of the LVDT driver. * Picomotor cabling was done differently from Mark's diagram * We will keep the wiring as is for iKAGRA * Make a new DCC document for iKAGRA PR3 cable diagram. * Make a modification in this new document. Put a note that the wiring is different in bKAGRA. * Stepper motor: TMCM box design will be circulated to VIS and AEL by Shoda by the end of Feb. * Future improvement * We need an overview schematic like the one drawn in the meeting with links to more detailed documents. * From the schematic, we should generate a table of necessary cables * We should use this table to check if we have all the necessary cables |
iKAGRA VIS electronics review
2016/2/4 15:00 -
Participants: Takahashi, Aso, Mark, Shoda, Raffaele, Akutsu, Okutomi, Fujii, Sekiguchi
Minutes
- PR3 electronics diagram (Mark)
- Discussion
- We went through the cables for PR3.
Overview diagram was drawn on a white board (picture)
- Blue double circles indicates cables to be replaced from the test hanging (because of wrong pin-out).
- Red check marks mean we checked the corresponding cable
Missing parts -> nothing
- Connection between an LVDT driver and an ADC required a gender changer. Against the general policy of KAGRA electronics, the output connector of the LVDT driver is male (output should be female in the policy). Therefore, a gender changer was necessary. We should add a gender changer at the output of the LVDT driver.
- Picomotor cabling was done differently from Mark's diagram
- We will keep the wiring as is for iKAGRA
- Make a new DCC document for iKAGRA PR3 cable diagram.
- Make a modification in this new document. Put a note that the wiring is different in bKAGRA.
- Stepper motor: TMCM box design will be circulated to VIS and AEL by Shoda by the end of Feb.
- Future improvement
- We need an overview schematic like the one drawn in the meeting with links to more detailed documents.
- From the schematic, we should generate a table of necessary cables
- We should use this table to check if we have all the necessary cables
- We went through the cables for PR3.
