HEIDENHAIN iTNC 530 (340 49x-03) Pilot - Manual (Page 16)

16
Co
nto
u
r Ap
proa
ch a
n
d
D
e
pa
rture
Contour Approach and Departure
Starting point P
S
P
S
lies outside the contour and must be approached without radius
compensation (R0).
Auxiliary point P
H
P
H
lies outside of the contour and is calculated by the TNC.
First contour point P
A
and last contour point P
E
The first contour point P
A
is programmed in the APPR (approach) block.
The last contour point is programmed as usual.
End point P
N
P
N
lies outside of the contour and results from the DEP (departure) block.
P
N
is automatically approached with R0.
The tool moves from the starting point P
S
to the auxiliary
point P
H
at the last programmed feed rate.
P
H
RL
P
S R0
P
A
RL P
E RL
RL
RL
P
N
R0