
B-63944EN/02 PROGRAMMING 21.5-AXIS MACHINING FUNCTION
- 749 -
(3) The path angle difference in the compensation plane is
large.
(Ra,Rb) < 0
<2> Suppressing the issue of the alarm with a Q command
By inserting a Q command into a block that resulted in the alarm,
the issue of the alarm can be suppressed.
(1) Q1 command
By inserting a Q1 command, a perpendicular vector is
generated.
Example: N4 Y-200 Z-200 Q1
t B', a vector (V) perpendicular to A'B' is generated.
e3
e2
’
C’B’
V
Fig. 21.4.1.1 (o) Q1 command
A perpendicular vector can also be generated by specifying
G41.2 or G42.1 in the next block as follows:
Example: N6 G41.2 Y-400 Z0
(2) Q2 command
With a program specifying a linear-to-linear connection, up
to two compensation vectors are generated. In this case,
the second vector is deleted by inserting a Q2 command.
The Q2 command has no effect on circular interpolation.
Example: N4 Y-200 Z-200 Q2
The second vector (V2) is deleted, and only V1 is used as a compensation vector.
e3
e2
’
C’
B’
V1
Fig. 21.4.1.1 (p) Q2 command