HEIDENHAIN TNC 620 User Manual page 623

Manual Operation and Setup | Switch-on, switch-off
Crossing the reference point in a tilted working plane
If the Tilt working plane function was active before the control
was switched off, then the control automatically activates the
function after restarting. This means that movements via the axis
keys take place in the tilted working plane.
Before traversing the reference points you must deactivate the
Tilt the working plane function, otherwise the control interrupts
the process with an error message. You can also reference axes
not activated in the current kinematic model without needing to
deactivate Tilt the working plane, such as a tool magazine.
Further information: "Activating manual tilting:", page 690
Danger of collision!
The control does not automatically check whether collisions
can occur between the tool and the workpiece. Incorrect pre-
positioning or insufficient spacing between components can lead
to a risk of collision when referencing the axes.
Pay attention to the information on the screen
If necessary, move to a safe position before referencing the
axes
Watch out for possible collisions
If the machine does not have any absolute encoders,
the position of the rotary axes must be confirmed. The
position shown in the pop-up window is the last position
before the control was switched off.
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017
NOTICE
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