HEIDENHAIN ITNC 530 - CYCLE PROGRAMMING User Manual page 196

Cycle parameters
U Plunging depth Q10 (incremental): Infeed per cut.
Input range: -99999.9999 to 99999.9999
U Feed rate for plunging Q11: Plunging feed rate in
mm/min. Input range: 0 to 99999.9999; alternatively
FAUTO, FU, FZ.
U Feed rate for roughing Q12: Milling feed rate in
mm/min. Input range: 0 to 99999.9999; alternatively
FAUTO, FU, FZ.
U Coarse roughing tool Q18 or QS18: Number or name
of the tool with which the TNC has already coarse-
roughed the contour. Switch to name input: Press the
TOOL NAME soft key. The TNC automatically inserts
the closing quotation mark when you exit the input
field. If there was no coarse roughing, enter "0"; if
you enter a number or a name, the TNC will only
rough-out the portion that could not be machined with
the coarse roughing tool. If the portion that is to be
roughed cannot be approached from the side, the
TNC will mill in a reciprocating plunge-cut; For this
purpose you must enter the tool length LCUTS in the
tool table TOOL.T and define the maximum plunging
ANGLE of the tool. The TNC will otherwise generate an
error message. Input range 0 to 32767.9 if a number
is entered; maximum 16 characters if a name is
entered.
U Reciprocation feed rate Q19: Traversing speed of
the tool in mm/min during reciprocating plunge cut.
Input range: 0 to 99999.9999; alternatively FAUTO, FU,
FZ.
U Retraction feed rate Q208: Traversing speed of the
tool in mm/min when retracting after machining. If
you enter Q208 = 0, the TNC retracts the tool at the
feed rate in Q12. Input range 0 to 99999.9999,
alternatively FMAX, FAUTO, PREDEF.
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Example: NC blocks
59 CYCL DEF 22 ROUGH-OUT
Q10=+5 ;PLUNGING DEPTH
Q11=100 ;FEED RATE FOR PLNGNG
Q12=750 ;FEED RATE FOR ROUGHING
Q18=1 ;COARSE ROUGHING TOOL
Q19=150 ;RECIPROCATION FEED RATE
Q208=99999 ;RETRACTION FEED RATE
Q401=80 ;FEED RATE REDUCTION
Q404=0 ;FINE ROUGH STRATEGY
Fixed Cycles: Contour Pocket, Contour Trains