HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 378)

378 Fundamentals of cycles
15.5 POLAR P
A
T
T
ERN (Cy
c
le 220)
 Set-up clearance Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999
 Coordinate of workpiece surface Q203 (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999
 2nd set-up clearance Q204 (incremental): Coordinate
in the spindle axis at which no collision between tool
and workpiece (fixtures) can occur. Input range 0 to
99999.9999
 Move to clearance height Q301: Definition of how
the tool is to move between machining processes:
0: Move to the set-up clearance between operations
1: Move to the 2nd set-up clearance between
machining operations
Example: NC blocks
53 CYCLE DEF 220 POLAR PATTERN
Q216=+50 ;CENTER IN 1ST AXIS
Q217=+50 ;CENTER IN 2ND AXIS
Q244=80 ;PITCH CIRCLE DIA.
Q245=+0 ;STARTING ANGLE
Q246=+360 ;STOPPING ANGLE
Q247=+0 ;STEPPING ANGLE
Q241=8 ;NUMBER OF OPERATIONS
Q200=2 ;SET-UP CLEARANCE
Q203=+30 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q301=1 ;MOVE TO CLEARANCE
X
Z
Q200
Q203
Q204