chara:trouble_shooting
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chara:trouble_shooting [2021/11/04 17:20] charaobs |
chara:trouble_shooting [2021/11/04 18:12] charaobs [The Telescope won't move or stopped moving] |
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| This is a list of simple things to check if you can't find fringes: | This is a list of simple things to check if you can't find fringes: | ||
| - | * Were the clocks synced? Make sure the [SYNC CLOCKS] button on Cosmic Debris has been pushed to start the night. If the OPLE server does not display the correct CHARA time and the errors don't read (0) or (1), the clocks were not synced. As the VME runs on its own clock and does not use the NTP server, it can drift over the course of the night and cause problems with finding fringes, even if it was synced at the start of the night. Syncing the clocks multiple time during the night may help to avoid this hidden clock problem. | + | * Were the clocks synced? Make sure the [SYNC CLOCKS] button on Cosmic Debris has been pushed to start the night. If the OPLE server does not display the correct CHARA time and the errors don't read (0) or (1), the clocks were not synced. |
| * Did the Astrolib update on OPLE? If the job queue is stopped too soon after slewing on Cosmic Debris, the correct calculations for the carts will not be done by OPLE and you may be searching for fringes with the wrong star data. Hit STAR ACQUIRED on CD to update ople. The proper star can also be entered by typing hd #### into the OPLE server and hitting ENTER. | * Did the Astrolib update on OPLE? If the job queue is stopped too soon after slewing on Cosmic Debris, the correct calculations for the carts will not be done by OPLE and you may be searching for fringes with the wrong star data. Hit STAR ACQUIRED on CD to update ople. The proper star can also be entered by typing hd #### into the OPLE server and hitting ENTER. | ||
| * Are the PoP's correct? After a PoP change, the PoP's are sometimes not updated in CD or ople. | * Are the PoP's correct? After a PoP change, the PoP's are sometimes not updated in CD or ople. | ||
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| * Check the instrument alignment. Is flux getting through to the detector? How long has it been since the last NIRO camera alignment? Classic and CLIMB programs can run for about an hour before the light will drift from the central pixel. Use the Classic or CLIMB gui to view the light on the pixels by clicking the PICTURE tab and then the PIXEL AREA button. Turn the camera off after a few seconds to avoid crashing NIRO. Is the right dither power turned on? CLIMB 1 and Classic use different dithers. If Classic or CLIMB fringes are found in a scan, but not when in recording mode, the dither powers are likely not on. Are the camera settings correct for the seeing conditions and flux levels? | * Check the instrument alignment. Is flux getting through to the detector? How long has it been since the last NIRO camera alignment? Classic and CLIMB programs can run for about an hour before the light will drift from the central pixel. Use the Classic or CLIMB gui to view the light on the pixels by clicking the PICTURE tab and then the PIXEL AREA button. Turn the camera off after a few seconds to avoid crashing NIRO. Is the right dither power turned on? CLIMB 1 and Classic use different dithers. If Classic or CLIMB fringes are found in a scan, but not when in recording mode, the dither powers are likely not on. Are the camera settings correct for the seeing conditions and flux levels? | ||
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| ===== Restarting Servers ===== | ===== Restarting Servers ===== | ||
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| ==== The Telescope won't move or stopped moving ==== | ==== The Telescope won't move or stopped moving ==== | ||
| - | \\ Have the powers been turned on to the drives? Are the scopes disabled? The usual state of the telescopes is disabled until enabled. This is due to the stall function of the scopes which eventually disables the scopes when they are stowed. Enable the scopes by hitting [ENABLE] on the dome gui or in the telescope gui control tab. If a scope disables itself during a slew, it may be just an overcautious stall function. Hit ENABLE and the scope should continue to slew. If it disables again without moving, there may be something wrong at the scope, ie. a hatch left open, a ladder not put away, a tool on the floor, or something else physically impeding the motion of the scope. You will need to go to the dome to see what it is. The computer in the dome will give you control of the scope to turn it away from the problem. \\ \\ Sometimes the dome guis get hung up and can cause erratic motion or no motion of the scopes. Check them for current times and continuous updates of numbers. If they are not updating, try to REOPEN them first. If that does not work, close the gui and open a new one. If a new one does not open, the dome server may be dead or Sockman lost track of it. See **Dome Server Restart** | + | \\ |
| + | Have the powers been turned on to the drives? Are the scopes disabled? The usual state of the telescopes is disabled until enabled. This is due to the stall function of the scopes which eventually disables the scopes when they are stowed. Enable the scopes by hitting [ENABLE] on the dome gui or in the telescope gui control tab. If a scope disables itself during a slew, it may be just an overcautious stall function. Hit ENABLE and the scope should continue to slew. If it disables again without moving, there may be something wrong at the scope, ie. a hatch left open, a ladder not put away, a tool on the floor, or something else physically impeding the motion of the scope. You will need to go to the dome to see what it is. The computer in the dome will give you control of the scope to turn it away from the problem.\\ | ||
| + | \\ | ||
| + | Sometimes the dome guis get hung up and can cause erratic motion or no motion of the scopes. Check them for current times and continuous updates of numbers. If they are not updating, try to REOPEN them first. If that does not work, close the gui and open a new one. If a new one does not open, the dome server may be dead or Sockman lost track of it. See **Dome Server Restart** below.\\ | ||
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| + | **Azimuth Limit Switches** \\ | ||
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| + | 1. On the domegui MANUAL tab, click STOP so pulses won't be sent to the drive by the control software.\\ | ||
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| + | 2. Make sure you understand why the limit was hit which may require a trip to the telescope.\\ | ||
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| + | 3. Click the OVERRIDE ON button in domegui MANUAL tab. After this, the hardware doesn' | ||
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| + | 4. Click ENABLE then you can move the telescope back to its normal range of operation.\\ | ||
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| + | 5. After the telescope is back in it normal range, click OVERRIDE OFF which makes the hardware aware of the limits again</ | ||
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| ==== The Telescope won't track ==== | ==== The Telescope won't track ==== | ||
chara/trouble_shooting.txt · Last modified: 2024/06/18 00:21 by charaobs
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