Howto #19
Problem: CALUNIT ERROR.

    Diagnostic :
  • Red error flag "CALUNIT ERROR" in PMAS Status Window.

    Explanation :
  • The VME motor controller has experienced an error condition of the Calibration Unit linear stage. The error may be related to a hardware problem, a software problem , or to a spurious error condition. If the error is prevailing despite the solution advised below, a more serious hardware failure must be suspected. Consult support for advice.

    Solution :
  • On rike prompt, type :
    
tmtopReset
    
limevalSet
    
tmtopInit
    
tmtopStatus
    After tmtopStatus, the following message should appear: TBD.

    Note that the A&G Camera and CALUNIT linear stages are being reset and initialized simultaneously as these devices are mounted to the same rail and thus must be prevented from collision.

    If the LOCKED status is not reached, reset the vme controller lea (reset button on lea frontpanel - do not confuse with abort button !) Repeat the sequence from above. If there is no success, call support.

    Note: it is possible to circumvent software control of this device to rescue an observation by moving manually either of the AG and CALUNIT stages into any desired position. A special tool is needed for this operation. FOR CAHA STAFF ONLY !