Raith Load Lock Error

James Conway jwc at snf.stanford.edu
Tue Sep 9 17:44:20 PDT 2008

Good Job Yuan!

Thank you for your help and system support during my vacation away from SNF!

Current RAITH system status:

Today I tested the system and established new outer robot arm position 
set point after repeatedly homing the T axis to remove any delta T errors.
I tested the load / unload procedure four times on three different 
logins and all seems fine!
This should take care of the problem.  If any loader issues return it is 
likely we will need to swap out to a new loader drive belt.

Thank you for your support!

Good Evening,

James Conway

Yuan Zhang wrote:
> Hi all,
> The previous user's sample was unloaded. I tried the load and unload procedures again, and the robot arm worked fine for me. I'll release the tool to users, but please keep an eye on the robot arm. If you meet the same problem later today, please follow the instruction and use the joystick to slightly push it out. If manual unload doesn't work, please let Xinran or me know, and we'll help you unload the samples. 
> Thanks,
> Yuan
> ----- Original Message -----
> From: "Yuan Zhang" <zhangy at stanford.edu>
> To: "Salman Latif" <slatif at stanford.edu>, raith at snf.stanford.edu
> Sent: Saturday, September 6, 2008 11:30:39 PM GMT -08:00 US/Canada Pacific
> Subject: RE: Raith Load Lock Error
> Hi Salman,
> Thanks for reporting the problem. I'll go there tomorrow morning around 10
> and try to fix the error. 
> Yuan
> -----Original Message-----
> From: Salman Latif [mailto:slatif at stanford.edu] 
> Sent: Saturday, September 06, 2008 9:48 PM
> To: raith at snf.stanford.edu
> Subject: Raith Load Lock Error
> Hi all,
> I encountered a load lock error while unloading the previous user's sample.
> I followed the instructions for the manual unload procedure, but it came
> back to the same error message ("it is not possible to reach the outer
> position of the robot arm"). I talked  with Xinran, and he said that no one
> should use the system (since it's in a critical state) before one of the
> raith champions comes in and clears the error. I am canceling my session and
> leaving the system as is. I'll report the error on Coral.
> Salman.
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