Date: Tue, 10 Nov 2009 05:56:21 -0700 (MST)
Subject: Re: 2.5m obslog 20091109 (MJD 55145)
From: asimmons@apo.nmsu.edu
The tcc directly commanded the focus changes, even after the guider focus
loop was commanded to shut off.
We shutdown the telescope and shut off the M2 galiel to prevent the mirror
from moving any further, but the focus values still continued to climb. We
tried to restart the guider through the stageManager, but cannot control
the process because it is owned by Craig.
Any ideas what is going on?
>> After switching to Marvels cartridges tcc tries to correct focus
>> itself (send
>> it up and higher). We said "guider focus off" or uncheck the
>> corresponding
>> checkbox in Guider menu - no, does not help. Now we have to adjust
>> focus with
>> tcc every half a minute because it drives it away! The focus goes up
>> even if
>> telescope is in instChange position! We tried to zero the focus Kp,
>> with no
>> effect.
>> Ticket opened 422 number.
>> In the morning focus goes up even after the telescope stowed.
>
> Do you mean that the guider tried to correct the focus, or that the
> tcc directly commanded it?
>
> Was the guider loop running?  Did the guider loop report focus errors
> and that it was changing it?
>
> At least at face value it is impossible for the guider to behave this
> way.
>
> 					R
>
> P.S. As I mentioned in the ticket, is the TCC being lied to about the
> temperature?
>
>
>
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