
13. Program Support Functions
13.14 Normal Line Control; G40.1/G41.1/G42.1
400
Item
Type 1
Type 2
Normal line
control axis
turning speed
at block seam
(b) Cutting feed
•
Dry run OFF
The normal line control axis turning speed
set with the parameter (#1523 C_feed) is
applied.
Normal line control axis turning speed f
= Parameter (#1523 C_feed)
∗
(Cutting
feed override) (°/min)
•
Dry run ON (Rapid traverse ON)
The cutting feed clamp speed (#2002
clamp) is applied.
Normal line control axis turning speed f
= Cutting feed clamp speed (°/min)
•
Dry run ON (Rapid traverse OFF)
The manual feedrate is applied.
Normal line control axis turning speed f
= Manual feedrate
∗
(Cutting feed
override) (°/min)
(Note 1) When the manual override valid is
ON, the cutting feed override is
valid.
(Note2) If the normal line control axis turning
speed exceeds the cutting feed
clamp speed (#2002 clamp), the
speed is clamped to the cutting feed
clamp speed.
F : Feed command speed
f : Normal line control axis turning speed =
parameter (#1523 C_feed)
(Continued to the next page)
(b) Cutting feed
The feedrate at the tool nose is the F
command. The normal line control axis
turning speed is the normal line control axis
speed that follows this F command.
Normal line control axis turning speed f
= F
∗
180/(
π∗
R)
∗
(Cutting feed override)
(°/min)
For R=0, the following expression is applied.
Normal line control axis turning speed f
= F (°/min)
F: Feedrate command (mm/min)
R: Parameter (#8041 C-rot.R) (mm)
(Length from normal line control axis
center to tool nose)
(Note 1) If the normal line control axis
turning speed exceeds the cutting
feed clamp speed (#2002 clamp),
the speed is applied to the cutting
feed clamp speed.
(Note2) When the dry run is ON, the normal
line control axis turning speed is
obtained with the same expression
as the rapid traverse.
F: Feed command
speed
Normal line control axis turning speed f
=F*180/(
π
*R)
R: Parameter (#8041 C-rot. R)
(Continued to the next page)