Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 4.INTERPOLATION FUNCIONS
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Limitation
- Arc radius specification in the cylindrical interpolation mode
In the cylindrical interpolation mode, an arc radius cannot be specified
with word address I, J, or K.
- Cutter compensation
To perform cutter compensation, specify G41, G42, and G40 in
cylindrical interpolation mode. Note that when cylindrical
interpolation mode is set during cutter compensation, correct
compensation cannot be applied.
- Positioning
In the cylindrical interpolation mode, positioning operations (including
those that produce rapid traverse cycles such as G28, G53, G73, G74,
G76, G80 through G89) cannot be specified. Before positioning can be
specified, the cylindrical interpolation mode must be cancelled.
Cylindrical interpolation (G07.1) cannot be performed in the
positioning mode (G00).
- Coordinate system setting
In the cylindrical interpolation mode, a workpiece coordinate system
(G92, G54 through G59) or local coordinate system (G52) cannot be
specified.
- Cylindrical interpolation mode setting
In the cylindrical interpolation mode, the cylindrical interpolation
mode cannot be reset. The cylindrical interpolation mode must be
cancelled before the cylindrical interpolation mode can be reset.
- Rotation axis
Only one rotation axis can be set in cylindrical interpolation. With the
G97.1 command, no more than one rotation axis can be specified.
- Parallel axis
The rotation axis for cylindrical interpolation is not a parallel axis.
- Tool offset
A tool offset must be specified before the cylindrical interpolation
mode is set. No offset can be changed in the cylindrical interpolation
mode.
- Index table indexing function
Cylindrical interpolation cannot be specified when the index table
index function is being used.
- Rotation axis rollover function
If the rotation axis for which the rollover function is used is specified as
the rotation axis used with cylindrical interpolation, the rollover
function is disabled in cylindrical interpolation mode.
When cylindrical interpolation mode is cancelled, the rollover function
is automatically enabled.

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