HEIDENHAIN TNC 620 (73498x-02) ISO programming - Manual (Page 122)

Programming: Fundamentals, file management
3.4 Working with the file manager
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TNC 620 | User's Manual for DIN/ISO Programming | 5/2013
To remove a USB device, proceed as follows:
Call the file manager: Press the PGM MGT key
Select the left window with the arrow key
Use the arrow keys to select the USB device to be
removed
Scroll through the soft-key row
Select additional functions
Select the function for removing USB devices. The
TNC removes the USB device from the directory
tree
Exit the file manager
In order to re-establish a connection with a USB device that has
been removed, press the following soft key:
Select the function for reconnection of USB
devices