European Southern Observatory New Technology Telescope

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Recovery Procedures

Wheels Set-up

If the positioning of a wheel is wrong the position table in the configuration file must be updated. To do this find the correct positions of the wheel and the corresponding encoder values. Templates exist to do this with the slit/mask and grism wheel.

Open the instrument configuration file from the ICS pannel and change the table with the new values. In the ICS pannel put all devices OFF-LINE, then click on LOAD in the configuration pannel and on OK in the window that will pop up afterword. Put all device in STANDBY and then ON-LINE.

ATTENTION: if the function is in fallbackinit mode because of a permanent problem of initialization, it must be set to simulation mode ON before putting the devices OFF. Be carefull this step is CRITICAL.

Send comments to: NTT Webmasters <nttweb@www.ls.eso.org> Last Update: August 26, 2002 (Leo Vanzi)