 Tue Jan 22 09:37:03 2019, Ino Monteiro, PLC Software and Configuration, Software, Installation new PLC version,
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| Installation of the new PLC code and re-initilalisation of the system. |
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Tue Jan 22 15:55:25 2019, Drive Team, Software Installation, Software, TESTS Parkout Parkin,
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Many parkin and parkout operations with different torque (with the clamping system of the access tower (from 18% to 8% = 26N/m). With 8%,
the locking position cannot be reached
Some minors have been corrected
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Mon Jan 28 15:27:35 2019, Drive Team, Telescope Operations, Software, Error Tests ,
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Debugging of the "Parkout" sequence with errors ==>
MOS received the error and set the FSM in error state
User from
semi-expert GUI should acknowledge the error ==> MOS FSM acknowledge methosd is call (just authorized from the error state) to acknowledge the error
to the PLC.
PLC set up all the needed variables to inform the MOS and GUI of the result of the acknowlegment
Today, |
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Wed Jan 30 15:43:12 2019, Drive Team, Telescope Operations, Software, Tests Tracking,
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Tests and debugging of the tracking procedure. Many components are involved : PLC MOS GUIs.
Each component needs to be well debbuged to achieve a safe movement of the telescope
==> IN PROGRESS |
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Wed Mar 6 16:30:56 2019, Drive Team- Ino&Thierry&Armand, PLC + Control Software debugging, Software, Tracking mode debug,
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Debugging of the MOS plugin corresponding to the tracking
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Fri Mar 8 09:25:22 2019, Drive Team- Ino&Thierry&Armand, PLC + Control Software debugging, Software, Tracking debug and setup,
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Tracking procedure has been debugged from the GUI-MOS (OPCUA Server with tracking plugin)-PLC
Still some improvments to apply
but globally the procedure is running well.
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Tue Jul 2 21:25:07 2019, Dirk Hoffmann, Applications, Software, Current & Power Monitoring stuck ("Socomec display"),
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The Current&Power Monitoring was not updated and hidden by two emtpy modal dialogue windows.
Restart of display (via icon on desktop) not successfull. ("MODBUS #2 communication failed.")
Called expert (ThLF), who advised how to call the old instance, then restart worked. |
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Fri Jul 5 08:58:42 2019, Dirk Hoffmann, Problem Fixed, Software, Small problem with park-in,
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When parking in yesterday, the telescope drove to the nominal position (approx. 95° zenith angle and -1° azimuth), but then it took a long time
and never showed the "park out" button again.
In the driver container, we saw two alerts to acknowledge, then the GUI indicated "telescope parked". We confirmed visually that the |
Thu Jan 16 22:06:39 2020, tions applied to solve this issue :Martin Will, Thierry Le Flour, Telescope Operations, Software, Semi-Expert Drive GUI not connecting / MOS server not working, Fixed 
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In the late afternoon shifters noticed the semi-expert drive GUI was not updating, several restarts did not help. Checking into the issue with the drive
team connecting from remote it was found that the MOS server is not running and cannot be restarted. This issue could not be solved and will be revisited
tomorrow, Jan 17, during the day. |
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Thu Jan 24 10:52:59 2019, Drive Team, Hardware, Issues, ,
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After issues during the parkin procedures ( 100% elveation torque ) :
a visual inpsection has been done : access is not involved , 2 possible causes :
rolls on elevation structure because
they are rolling (4 of them yes , 4 of them not)
motor break ==> under investigation
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Fri Apr 26 23:17:07 2019, Alessandro for the drive team, Telescope Operations, Issues, drive tracking issue,
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We encountered a couple of issue with tracking
- When we tried to track on polaris coordinates (RA: 37.946143deg Dec: 89.264138 AzOff=0.261 ZdOff=-0.359) the telescope started
to move toward the east relatively fast (roughly ~5deg in less than 1 min) while it was supposed to basically stay on place. Some ephemerides evaluation |
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Wed Jul 3 21:02:09 2019, Dirk, Taka, Mitsunari, Yukiho, Noah, Telescope Operations, Issues, Feedback from shiftcrew,
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(For Thierry with love <3 :-)
The semi-expert drive control panel uses various terms for the zenith angle: "Altitude (zenith angle)", "Elevation", "Angle".
"Zenith Angle". |
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Tue Jul 9 00:46:52 2019, Mitsunari, Yukiho, Noah, Moritz, Telescope Operations, Issues, Park-in problems,
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At parking in, the telescope got stuck at 94.254°. We checked in the container that fuse Q21 went off. We did not see any errors both in the Drive
cointainer and the GUI. We texted the experts. After 15 minutes, we pressed again "ParkIn" (without having touched the fuse). After nothing happend
in the GUI, we called the experts. They authorized us to switch back the fuse. After that, still heavy intervention by the experts was needed, who finally |
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Fri Jul 19 23:06:13 2019, Mitsunari, Tomohiro, Satoshi, Moritz, Yusuke, Telescope Operations, Issues, Telescope stuck in strange state/lost control by Semi-Expert GUI,
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Tonight, we tracked Vega to test (a correction of) the pointing offset of the Drive.
Around 22:30UTC, we tried different Az offsets of the pointing in the Semi-expert GUI, followed by taking an image with the PSF camera to see
the effect of the offset choice. |
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Wed Jan 23 15:10:34 2019, Drive Team, Telescope Operations, Hardware, ,
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Emergency stop applied because of a azimuth value(encoder) not in the pre-defined range +-0.015
first parkin ==> Azimuth 0.013 ==> Emergency because offset even if in the correct range
2nd parkin ==> Azimuth 0.004
==> Emenrgency stop because offset not in the correct range (eye control not drive control)
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Fri Jan 25 12:39:52 2019, Drive Team, Problem Fixed, Hardware, Brakes issues fixed,
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| The brake of the elevation issue has been fixed. Operations on drive can be resumed. |
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Mon Apr 1 07:43:23 2019, Drive Team- Ino&Thierry&Armand, Problem Fixed, Hardware, LST Parking control,
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On Wenesday morning (27/03/19) :
With Holger and Robert (MPI) , many telescope "park in/park out" operations have been
performed in order to refine the positionning in the acces tower and at the elevation locking bolt
Holger and Robert applied many mechanical modifications on the acces tower to make the telescope park operations very smooth |
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Tue Apr 16 14:34:22 2019, Drive Team- Ino, Telescope Operations, Hardware, Cabling the azimuth end switches,
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Cabling the azimuth end switches.
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Thu Apr 18 09:10:29 2019, Ino, PLC Software and Configuration, Hardware, Offset of the Zero Azimuth,
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After pointing Polaris yesterday, it seems that the zero position of the telescope was incorrect but It's never had been calibrated (zero was equals
to parking position towards center of tower).
So I shift the zero position of telescope by 0.869°. |
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Thu Apr 18 21:21:25 2019, Drive Team- Ino&Thierry&Alessandro, Telescope Operations, Hardware, Elevation limit switch issue,
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The 2 swicthes are too far from the target at 56.48 elevation. The sensor have been tuned in parkin position and the distance was
correct (2mm) and at 56.48 is about 10mm. (impossible to tune correctly the sensor and the atrger has to be tuned) |
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