 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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 Fri Jul 5 23:23:57 2019, Dirk, Moritz, Telescope Operations, General, Park-in report,
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On park-in command, telescope went to the right position 95/-1, but did not recognise that it was there.
Pushed Park-In again
Acknowledged one error
Then everything fine.
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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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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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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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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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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 21:07:20 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 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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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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Sat Jul 6 23:17:54 2019, Moritz, Dirk, Telescope Operations, , Park-in problems,
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When parking in the telescope, accidently hit "Shutdown" button instead of "Parkin" in Drive Semi-epert GUI. Nothing seem to happen
for minutes despite telling command in progress "Shutdown"
Texted Drive experts, they told to just hit again the correct "Parkin" button. |
Mon Jul 22 23:07:20 2019, Yusuke, Daniel K., Mitsunari, Satoshi, Tomo, Juan Abel, Yoshiki, Telescope Operations, , Flywheel PLC down, 
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After finishing the normal start-up procedure, we tried to park out by GUI, but got an error (22:30 local time): "MSG_WARNINGPark_Out_TimeOut"
The Drive, FSM and Command Statuses were "Parked", "in parking Area" and "No command in progress," respectively.
We closed&reopend the GUI and "Park Out" three times, but everytime got the same error. |
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Tue Jul 23 13:50:43 2019, Yusuke, Patricia, Problem Fixed, , Reboot Flywheel PLC,
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Regarding the problem on the Flywheel PLC (see here), we entered UC1 under the supervision of Daniel
M. and Koji (11:16 local time).
First we checked the LEDs of the black Ethernet cable. LINK in green was constantly ON and ACT in orange was blinking. |
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Sat Jul 27 11:11:08 2019, Yusuke, Satoshi, Tomo, Yoshiki, Other, , GUI stacked due to a wrong shutdown procedure,
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Drive GUI stacked due to a wrong shutdown procedure (Jul. 27th 01-02UTC). This was simply a human error.
First, we pushed ParkIn button as usual in the end of the night. We confirmed the telescope was in Locking Position in GUI, but most probably overlooked |
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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 |
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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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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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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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