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Open ~/igrins_admin/igm_rcv.py in a text editor
On line 33 it should say,
ers = [’S’,’H’,’K’]
The list ers tells the script which detectors to reset. Here all three detectors will be reset. Comment out line 33 and below set ers equal to what detectors you want to reset.
For example, if the SCP was freezing but the DTP still showed the H and K band dectors reading out, you only would want to reset the slit-view camera detector, so comment out line 33 of ~/igrins_admin/igm_rcv.py and below it add ers = [’S’] as follows:
#ers = [’S’,’H’,’K’]
ers = [’S’]ATTENTION: If you in anyway are unsure what the above means, it is safest for you to leave the ~/igrins_admin/igm_rcv.py file alone and continue onto the next steps.
Next try running the detector reset script as followingfollows:
Close the SCP and DTP if you have not already done so. If one or both are frozen, use the ICS Hub → Kill Processes to close them.
Open a terminal
cd ~/igrins_admin
source run_det_restart.sh
Put in the igrins password used to log into the Instrument Control Computer.
Wait a minute while it runs.
If you see nothing but a bunch of zeros scrolling by for a few minutes, the script did not work and you will need to press control c to kill the script and then proceed to the instructions for power cycling the detector controllers below.
If the script works, when it is finished reopen the SCP and DTP.
Take a single + test exposures to confirm all three detectors read out.
If everything works, and you modified ~/igrins_admin/igm_rcv.py, be sure to undo any changes you made to ~/igrins_admin/igm_rcv.py by setting line 33 back to just and deleting anything you added below that line:
ers = [’S’,’H’,’K’]
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Move the telescope to Zenith.
Raise the east platform enough you can access the IGRINS electronics rack mounted to the side of IGRINS.
If you see the On backside of the IGRINS electronics rack, you will find three power switches for three each of the detector controllers, as shown in the attached photo.
Turn all three switches off
Wait about 10 seconds.
Turn all of them back on.
Lower the east platform back to the ground.
Go back to the control room and on the Instrument Control Computer do the following to run the detector restart script…
Close the SCP and DTP (if they are open). If one or both are frozen, Use ICS Hub → Check Processes to kill them.
Open a terminal
cd ~/igrins_admin
source run_det_restart.sh
Put in the igrins password used to log into the Instrument Control Computer.
Wait a minute while it runs.
When it is finished reopen the SCP and DTP.
Take a single and test exposures to confirm everything works.
If everything works, and you modified ~/igrins_admin/igm_rcv.py, be sure to undo any changes you made to ~/igrins_admin/igm_rcv.py by setting line 33 back to just and deleting anything you added below that line:
ers = [’S’,’H’,’K’]
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