HEIDENHAIN TNC 620 (81760x-02) Cycle programming - Manual (Page 205)

CONTOUR TRAIN DATA (Cycle 270, DIN/ISO: G270, software option
19)
7.10
7
TNC 620 | User's Manual Cycle Programming | 2/2015
205
Cycle parameters
Type of approach/departure (1/2/3) Q390:
Definition of the type of approach and departure:
Q390=1:
Approach the contour tangentially on a circular path
Q390=2:
Approach the contour tangentially on a straight line
Q390=3:
Approach the contour at a right angle
Radius compensation (0=R0/1=RL/2=RR) Q391:
Definition of the radius compensation:
Q391=0:
Machine the defined contour without radius
compensation
Q391=1:
Machine the defined contour with radius
compensation RL
Q391=2:
Machine the defined contour with radius
compensation RR
Approach/departure radius Q392: Only in effect
if tangential approach on a circular path is selected
(Q390=1). Radius of the approach/departure arc.
Input range 0 to 99999.9999
Center angle Q393: Only in effect if tangential
approach on a circular path is selected (Q390=1).
Angular length of the approach arc. Input range 0 to
99999.9999
Distance to auxiliary point Q394: Only in effect if
tangential approach on a straight line or right-angle
approach is selected (Q390=2 or Q390=3). Distance
to the auxiliary point from which the TNC is to
approach the contour. Input range 0 to 99999.9999 NC blocks
62 CYCL DEF 270 CONTOUR TRAIN
DATA
Q390=1
;TYPE OF APPROACH
Q391=1 ;RADIUS
COMPENSATION
Q392=3 ;RADIUS
Q393=+45 ;CENTER ANGLE
Q394=+2 ;DISTANCE