Siemens Sinumerik 802D sl Programming Manual page 122

Enhanced Level Commands
4.1 Program support functions (1)
High-speed deep hole drilling cycle (G83, G87)
(GUD7, _ZSFI[20]=0)
When using
drilling at the cutting feedrate. It intermittently retracts by a specified distance until
the tool reaches the bottom of the hole.
Format
G83 X(U)... C(H)... Z(W)... R... Q... P... F... M... ;
or
G87 Z(W)... C(H)... X(U)... R... Q... P... F... M... ;
X, C or Z, C: Hole position
Z or X: Distance from point R to the bottom of hole
R_: Distance from the initial level to R level
Q_: Infeed
P_: Dwell time at bottom of hole
F_: Cutting feedrate
K_: Number of repetitions (if required)
M_: M code for clamping C-axis (if required)
G83 or G87 (G98 mode)
Point R
q
q
q
Fig. 4-34
4-122
high-speed deep hole drilling cycle, t
Mα
Initial level
M(α+1)
P2
d
d
P1 Point Z
High-speed deep hole drilling cycle
SINUMERIK 802D sl/840D sl840D/840Di sl/840Di/810D ISO Turning -- 04.07 Edition
he drill repeats the cycle of
G83 or G87 (G99 mode)
Mα
Point R
q
d
q
d
q
P1
© SIEMENS AG 2007 All rights reserved
04.07
M(α+1), P2
Point R
Point Z