MDM Trouble Report for 2017 Nov 19

Telescope: 2.4m
Observer(s): Rupert (MDM)
Instrument: OSMOS/B

Problem(s) Encountered:
Played around with the hand paddle-operated focus during
the day. It seems like it gets hung up, especially when I use
the slew button. It will start out going fast as it 
should with slew, but then it slows down considerably and
sometimes stops, and I will be unable to use the hand paddle
to change the focus at all for a short period of time. 
It eventually wakes up again on its own. 

I also discovered that the focus hangs up when using
the focus4k procedure. If the focus is >6000 and the user
sets the first step to be <6150, the focus hangs up at 6000.
You need to press the stop button on the TCS window and give
it about 20 seconds and you will be able to move the focus
again. I have found that a short-term solution is to use the
hand paddle to set the focus below 6000 if you plan on using
focus4k in the given scenario.

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Submitted on 2017 Nov 20 [6:34:32]