Fixed Cycles: Drilling
3.3 DRILLING (Cycle 200)
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Cycle parameters
Q200 Set-up clearance? (incremental): Distance
between tool tip and workpiece surface. Enter a
positive value. Input range 0 to 99999.9999
Q201 Depth? (incremental): Distance between
workpiece surface and bottom of hole. Input range
-99999.9999 to 99999.9999
Q206 Feed rate for plunging?: Traversing speed of
the tool in mm/min during drilling. Input range 0 to
99999.999, alternatively FAUTO, FU
Q202 Plunging depth? (incremental): Infeed per cut.
Input range 0 to 99999.9999
The depth does not have to be a multiple of the
plunging depth. The TNC will go to depth in one
movement if:
the plunging depth is equal to the depth
the plunging depth is greater than the depth
Q210 Dwell time at the top?: Traversing speed of
the tool in mm/min during drilling. Input range 0 to
3600.0000
Q203 Workpiece surface coordinate? (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999
Q204 2nd set-up clearance? (incremental):
Coordinate in the spindle axis at which no collision
between tool and workpiece (fixtures) can occur.
Input range 0 to 99999.9999
Q211 Dwell time at the depth?: Time in seconds
that the tool remains at the hole bottom. Input range
0 to 3600.0000
Q395 Diameter as reference (0/1)?: Select
whether the entered depth is referenced to the tool
tip or the cylindrical part of the tool. If the TNC is
to reference the depth to the cylindrical part of the
tool, the point angle of the tool must be defined in
the T ANGLE column of the tool table TOOL.T.
0 = Depth referenced to the tool tip
1 = Depth referenced to the cylindrical part of the
tool
NC blocks
11 CYCL DEF 200 DRILLING
Q200=2 ;SET-UP CLEARANCE
Q201=-15 ;DEPTH
Q206=250 ;FEED RATE FOR
PLNGNG
Q202=5 ;PLUNGING DEPTH
Q211=0 ;DWELL TIME AT TOP
Q203=+20 ;SURFACE COORDINATE
Q204=100 ;2ND SET-UP
CLEARANCE
Q211=0.1 ;DWELL TIME AT DEPTH
Q395=0 ;DEPTH REFERENCE
12 L X+30 Y+20 FMAX M3
13 CYCL CALL
14 L X+80 Y+50 FMAX M99
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