FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

PROGRAMMING
B–62754EN/01
15. COMPENSATION FUNCTION
207
This section describes the following operations when tool position offset
is applied: G53, G28, G30, and G30.1 commands, manual reference
position return, and the canceling of tool position offset with a T00
command.
Executing reference position return (G28) or a G53 command when tool
position offset is applied does not cancel the tool position offset vector.
The absolute position display is as follows, however, according to the
setting of bit 4 (LGT) of parameter No. 5002.
LGT = 0 (Tool geometry compensation is based on shift of the coordinate system.)
Tool position offset
(without option)
Tool geometry
compensation
Tool wear
compensation
Absolute
position
coordinate
display
Block for reference
position return or
G53 command
The vector is not re-
flected. The coordinates
are displayed as if the
offset had been tempo-
rarily canceled.
The shift is reflected.
Coordinates shifted ac-
cording to the tool geom-
etry compensation are
displayed.
The vector is not re-
flected. The coordinates
are displayed as if the
offset had been tempo-
rarily canceled.
Next block The vector is reflected. Coordinates shifted ac-
cording to the tool geom-
etry compensation are
displayed.
The vector is reflected.
LGT = 1 (Tool geometry compensation is based on tool movement.)
Tool position offset
(without option)
Tool geometry
compensation
Tool wear
compensation
Absolute
position
coordinate
display
Block for reference
position return or
G53 command
The vector is not re-
flected. The coordinates
are displayed as if the
offset had been tempo-
rarily canceled.
The vector is not re-
flected. The coordinates
are displayed as if the
offset had been tempo-
rarily canceled.
The vector is not re-
flected. The coordinates
are displayed as if the
offset had been tempo-
rarily canceled.
Next block The vector is reflected. The vector is reflected. The vector is reflected.
NOTE
Bit 6 (DAL) of parameter No. 3104 is set to 0 (the actual
positions to which the tool position offset is applied are
displayed in the absolute position display).
15.1.6
G53, G28, G30, and
G30.1 Commands
When Tool Position
Offset is Applied
Explanations
D Reference position
return (G28) and G53
command when tool
position offset is applied

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