
B-63323EN-1/03 6.NTERPOLATION FUNCTION
- 595 -
7794 Limit of the travel distance moved using the normal-direction angle in the
previous block
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N1
N2
Amount of travel
Programmed path
N3
Diameter
Programmed path
N2
Tool orientation
Tool orientation
If the amount of travel of N2 in the left
figure is smaller than the setting, the tool
orientation in N1 is not changed in the N2
Circular travel
If the diameter of the arc of N2 in the left
figure is smaller than the setting, the
normal direction in N1 is kept in the circular
travel of N2.
During circular travel, the axis of normal
direction is not controlled to direct the tool
to the normal direction.
Fig. 6.13 (b)
Alarm and message
Number Message Contents
PS0470 G40.1-G42.1 PARAMETER MISS The normal line direction control axes parameter settings
are erroneous.
• Set the normal line direction control axis setting in NDC
parameter No. 1006#6. Only one axis can be set to "1"; this
is not possible for multiple axes.
• Set the axis for which NDC parameter No. 1006#6 is set to
"1" to axis of rotation (ROT parameter No. 1006#0=1, and
parameter No. 1022=0).
• Set the feedrate when rotation of the normal line direction
control axis is set to parameter No. 1472 within the range 1
to 15000 degrees/min.