 Tue Apr 16 10:10:55 2019, Drive Team- Ino&Thierry, PLC Software and Configuration, , Elevation setup,
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1 degree has been added to the Elevation accordingly to the last measurement given by Olger
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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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Fri Jan 25 14:12:28 2019, Drive Team, Telescope Operations, General, Drive Movement : PArkin and Parkout,
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Many parkin operations done. To confirm the different movements , a Parkin test with a azimuth position 20 and Elevation 70.
This is to validate the complete "Parkin" scenario with "random" az and el positions |
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Wed Mar 6 10:54:33 2019, Drive Team- Ino&Thierry&Armand, Telescope Operations, General, DRIVE : High Speed tests,
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The FW issue is not solved . No movement can be done
The FW is going to be restarted ==> It takes several hours to put it down
and up again
Drive movement are stucked
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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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Sat Jul 6 22:47:38 2019, Dirk Hoffmann, Telescope Operations, General, Car flash from road above+,
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When checking the telescope visually outside, while it was in the "park-out" position, a car happened to pass by from the upper road (coming
from the other telescopes). Its lights flashed directly into the camera. It seems that the road is in direct prolongation of our current park-out position.
We saw the CAM HV going down several times in the park-out position (where the shutter is typically opened) during the last weeks. Can |
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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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Sun Nov 24 19:33:56 2019, Mathieu David Armand, Telescope Operations, General, CDM images for bending model,
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- CDM images at park out position.
Exposure 100ms.
OARL on. |
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Mon Nov 25 22:53:22 2019, Mathieu David Armand, Telescope Operations, , CDM images 19/11/25,
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Mg=1.25
DenebDark 60x1s RA-2
TestTracking 60x1s Displacement from Deneb RA-2
Deneb 60x1s
DenebLed
10x20ms Led On OARL On
Zd~32
Mg=3.65
OmiAndLed Led Lasers On 10x20ms
OmiAnd
60x1s
OmiAndDark Ra-2 60x1s
Zd~14
//====== Not good
Mg=4.75
KsiPegLed |
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Tue Nov 26 21:37:03 2019, David Sanchez, Armand Fiasson, Mathieu De Bony, Telescope Operations, , CDM bending model image 26-11-2019,
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The aim was to observe several stars with different magnitude and check the sensitivity of the CDM. We wanted to use a semi-automatic procedure with
command sent to the drive via a script to the Acs
After we realized that the telescope was not moving after a StarTracking command we try to use the drive system through the Acs server. StartTracking |
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Wed Nov 27 21:27:29 2019, Mathieu David Armand, Telescope Operations, , CDM & SG images with alternative target,
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Test of alternative grey target for the OARL
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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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Wed Jan 23 11:26:29 2019, Drive Team, PLC Software and Configuration, General, Azimuth tuning ,
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To define precisely the correction to apply to Azimuth positionning, a set of movements have been done to calculte the correction coefficient.
A
scan from 0 deg. to 270 deg. with a step of 10 deg. and a reverse scan from 270 deg. to 0 deg. with a step of 50.deg realized to have a better approximation
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Mon Feb 10 14:57:56 2020, Ino + Gael + Thierry, Other, Hardware, Azimuth Locking System , Fixed 14x
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Last week we put in sevice the new ALS completly modified:
_ Main System with new reducer.
_ New Speed parameters for Main System (motor is at full speed but due to reducer the spped is slow). Decceleration sensors not installed since |
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Wed Mar 6 14:58:51 2019, Drive Team- Ino&Thierry&Armand, Telescope Operations, General, Access tower failure,
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| During a park-in action , the acces tower did not close correctly. |
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Sat Dec 7 19:16:01 2019, Daniel Mazin, Koji Noda, Hardware, Hardware, ALS East: problem and preliminary solution, 6x
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On Dec 6, Dario, Frederic and Yuji showed to Koji Noda and Daniel Mazin how to operate the new ALS. The idea was to do an unlock and lock again, as the
weather was still bad. The automatic part went more or less OK ending in error state (excpected). We then went to EAST ALS to open the main actuator manually.
After moving the actuator manually, the status of the ALS was either locked not unlocked. We realized that secondary sensor for South part was reacting |
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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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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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Thu Jun 27 12:04:43 2019, Ino, Problem Fixed, General, ,
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During this 2 weeks we solve this problems:
_ Park In: Sometimes the final locking position was too limit and the "In Position" sensor was lost |
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Thu Sep 12 16:41:53 2019, Drive Team- Ino&Thierry, PLC + Control Software debugging, , ,
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Tuesday September 110th :
Tests park-in and park-out to manage the different type of failures
Tests failure during park-in phase with a telescope
in a position different from the park-out position
Tests (from the Drive semi-expert GUI) to send the telecope to the parking area from any |