 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 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 Jun 27 12:19:02 2019, Ino, Problem Fixed, General, PLC Status,
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During this weeks we solve this problems:
_ Park In: Sometimes the final locking position was too limit and the "In Position" sensor was lost during the locking witch put the
sytems in bad state vs safety constaint (we can't unlock if the sensor In Position is not active). So now the final poition is now adjusted dynamically |
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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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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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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 |
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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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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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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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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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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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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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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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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Thu Mar 28 10:34:41 2019, Drive Team- Ino&Thierry&Armand + Juli (IFAE), Telescope Operations, , High speed drive tests,
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new session of high speed drive tests after issues with Power Supply.
Tests of emergency stop (with a speed at 25% and 43 % GRB speed) with a modification of the jerk value from 0.08 to 0.2 ==> OK
Tests
of azimuth movements : (-90 to 270 degres)
at 60% of GRB speed. ==> Ok for 6 movements
at 80% of GRB speed
Ok |
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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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Fri Mar 8 09:20:29 2019, Drive Team- Ino&Thierry&Armand, Telescope Operations, General, High speed drive tests,
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On Thrusday :
new movements at 45% from -90 to 270 have been done.
No possible movement at 60% because the FW and UPS
issues are not solved yet
Ino will back on site when HITACHI team will be on site for FW maintenance
Tests at 60% will
be done to validate (or not) the correction applied by Hitachi team.
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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 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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