 Thu May 30 13:18:04 2019, Alessandro, Telescope Operations, , semi expert gui (marginal) issues,
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- During shutter tests, we were requested to move the telescope many times between two positions at different zenith. Sometimes, once the position is
reached and in the log I got the message 'GoToTelescopePosition Done received', the command panel stay stack with the "action in progress"
bar without possibility to perform other atctions. I need to click to 'general abort' to stop the action and get the panel comand back. It |
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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 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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Wed Apr 17 21:26:13 2019, Drive Team- Ino&Thierry&Alessandro, Satoshi, Telescope Operations, General, Tracking for mirrors alignment,
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Tracking at position :
RA = 101.288541 RA Offset = -0.6
DEC = -16.71343 DEC Offset = 0.7
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Thu Feb 28 19:56:55 2019, Drive Team- Ino&Thierry, PLC Software and Configuration, , Tracking debug and setup,
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Debugging of the tracking sequence :
PLC sequence : trajectory tracking data correctly managed
PLC tuning : regulation OK ==> need to refine.
Tracking
algorithm :
Changes in Drive.ccp to allow azimuth negative values.
Tracking duration : even by changing the duration of he 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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Mon Apr 1 07:36:04 2019, Drive Team- Ino&Thierry&Armand, Telescope Operations, General, Tracking debug and setup,
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Regulation of the motors (PID) for slow and fast tracking and motor oscillations.
Implementation and Debugging of the Semi-Expert
control software for the drive.
GUIs + MOS plugin (OPCUA Server)
Results are quite encouraging in good wheather
condiftions.
additionnal tests in different (wind) conditions are envisaged to validate completly the process
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Tue Feb 26 20:45:41 2019, Drive Team- Ino&Thierry, Telescope Operations, General, Tracking debug,
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| Start of the tracking debug ==> PLC and MOS |
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Wed Jun 26 20:06:22 2019, Ino, PLC + Control Software debugging, , Tracking Trajectory,
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We sent a tracking with with RA211,08 and DEC29,52
1st time the goto position of azimuth was sent at +42° and the trajectory requierts -52° !!! (speed limit of the tracking 0,001
rad/s) |
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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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Mon Sep 16 08:59:41 2019, Drive Team- Ino&Thierry + Ievgen + Vitalii + Jean-Luc, PLC + Control Software debugging, , Test TCU<->Drive,
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Thierry&Ino on site
Ievgen, Vitalli and Jean-Luc remotely.
TCU tests to perform the parkin-in and park-out procedure from the Drive. |
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Wed Mar 6 15:33:14 2019, Drive Team- Ino&Thierry&Armand, Telescope Operations, General, Test High Speed Drive,
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Test at 60% maximal speed from -90 to 0
Check of the FW discharge : No error (FW 2 : 95% FW1 : 100%)
Test
at 60% maximal speed from -90 to 270
Check of the FW discharge ==> Error (FW 2 : 90 % FW1 : 100%)
Drive stops at 250
degree.
Power consumption = 60kw
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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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Fri Jun 28 22:49:39 2019, Dirk Hoffmann, Telescope Operations, General, Telescope stuck,
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After tracking Mk421, we abort current action (acknowledged) and try to go to a new source: RA=308.1, Dec=40.96. Drive Control refuses these parameters
("check your parameters").
General Abort without effect for 2 minutes. Called expert (Ino). He will look into it. |
 Fri Jun 28 23:06:36 2019, Dirk Hoffmann, Telescope Operations, General, Telescope stuck,
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Ino explained: MOS was totally desynchronised with PLC. (It was assuming that the telescope was parked.) He parked the telescope manually. Thanks!
Experts will investigate on Monday. But the shift crews can continue to use the Drive Control and tracking.
Quote:
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Thu Apr 18 21:07:20 2019, Drive Team- Ino&Thierry&Alessandro, Telescope Operations, , TESTS Parkout Parkin for fixing the bolt issue,
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Different ParkOut and Parkin done with different values for testing the torque limitation.
By decreasing the torque and the
position , the parkin failed because we are not in the CSS locking sensor (in locking position)
By setting back the original values, th
parkin is ok but the bolt cannot be properly inserted.
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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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Thu Sep 19 19:10:39 2019, Martin, Ino, Thierry, Quentin, Thomas, Tracking Debugging, , Star images with various Az and Zd offsets,
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We tracked stars at various zenith angles and changed the Az and Zd offsets, taking images with the PSF camera for each position. After Armand's
changes during the day the offset is the same for all Zenith angles.
Star Zd Az |
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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. |