B-63322EN/03 NC FUNCTIONS 3.INTERPOLATION FUNCTION
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Fig. 3.17.1(a)
- Rollover
If a control point is specified in the absolute mode (G90) for a rotation
axis subject to rollover, the relative position shift of the control point
based on a shortcut is calculated after rollover processing for the
control point.
- Inverse time feed
If G93 is specified during NURBS interpolation, the inverse time
command (G93) mode is set. Specify an inverse time (FRN) with F
code. FRN for NURBS interpolation is represented by the following
expression:
Distance
Feedrate
FRN =
Feedrate: mm/min (metric input) or inch/min (inch input)
Distance: mm (metric input) or inch (inch input)
(Travel distance along a NURBS curve. This distance does not
always represent a travel distance if a rotation axis is
involved.)