Mitsubishi Electric M700V Series Programming Manual page 413

13. Program Support Functions
Item
Normal line The normal line control axis turning speed is
control axis the rotation speed obtained by feedrate F.
turning speed
during
Normal line control axis turning speed f
circular
= F∗180/(π∗r) (degree/min)
interpolation
F : Feed command speed
(mm/min)
r : Arc radius (mm)
F: Feed command speed
Normal line control axis turning speed f
=F*180/(π*r)
(Note 1) If the normal line control axis turning speed exceeds the cutting feed clamp speed (#2002
clamp), the speed will be as follows;
• Normal line control axis turning speed
• Moving speed during arc interpolation
Automatic corner arc insertion function
During normal line control, an arc is automatically inserted into the corner in the axis movement of
the plane selection. This function is for the normal line control type I.
The radius of the arc to be inserted is set with the parameter (#8042 C-ins.R).
This parameter can be read and write using the macro variable #1901.
Normal line control is performed also during the interpolation for the arc to be inserted.
Type 1
r: Arc radius
= Cutting feed clamp speed.
= The speed according to the normal line control axis turning speed
Parameter (#8042 C-ins.R)
13.14 Normal Line Control; G40.1/G41.1/G42.1
The feedrate at the tool nose is the F
command. The normal line control axis
turning speed is the rotation speed that
follows this F command.
Normal line control axis turning speed f
= F∗180/(π∗(R+r)) (degree/min)
F : Feed command speed
(Note 1)
(mm/min)
R : Parameter (#8041 C-rot. R) (mm)
Length from normal line control axis
center to tool nose
r : Arc radius (mm)
F: Feed command speed
R: Parameter
(#8041 C-rot. R)
Normal line control axis turning speed f
=F*180/(π*(R+r))
401
Type 2
r: Arc radius