Siemens SINUMERIK 802D sl Programming And Operating Manual page 42

Programming
3.1 Fundamental Principles of NC Programming
Address Meaning
ACP Absolute coordinate;
approach position in
the positive direction
(for rotary axis, spin-
dle)
ACN Absolute coordinate;
approach position in
the negative direction
(for rotary axis, spin-
dle)
ANG Angle for the specifi-
cation of a straight
line for the contour
definition
AR Aperture angle for
circular interpolation
CALL Indirect cycle call
CHF Chamfer;
general use
CHR Chamfer;
in the contour defini-
tion
CR Radius for circular
interpolation
CYCLE... Machining cycle
CYCLE410 Plunge-cutting
3-12
Value assignments Information
- It is also possible to specify the
dimensions for the end point of
a rotary axis with ACP(...) irre-
spective of G90/G91; also ap-
plies to spindle positioning
- It is also possible to specify the
dimensions for the end point of
a rotary axis with ACN(...) irre-
spective of G90/G91; also ap-
plies to spindle positioning
±0.00001 ... Specified in degrees;
359.99999 one possibility of specifying a
straight line when using G0 or
G1 if only one end-point coordi-
nate of the plane is known
or
if the complete end point is
known with contour ranging
over several blocks
0.00001 ... Specified in degrees; one pos-
359.99999 sibility of defining the circle
when using G2/G3
- Special form of the cycle call;
no parameter transfer; the
name of the cycle is stored in a
variable;
only intended for cycle-internal
use
0.001 ... 99 Inserts a chamfer of the speci-
999.999 fied chamfer length between
two contour blocks
0.001 ... 99 Inserts a chamfer of the speci-
999.999 fied leg length between two
contour blocks
0.010 ... 99 One possibility of defining a
999.999 circle when using G2/G3
Negative sign - for
selecting the circle:
greater than semi-
circle
Only specified The call of the machining cycles
values requires a separate block; the
appropriate transfer parameters
must be loaded with values.
Special cycle calls are also
possible with an additional
MCALL or CALL.
Programming and Operating manual, 06/2006, 6FC5398-4CP10-0BA0
Programming
N10 A=ACP(45.3) ; Ap-
proach absolute position of
the A axis in
the positive direction
N20 SPOS=ACP(33.1);
Position spindle
N10 A=ACN(45.3) ; Ap-
proach absolute position of
the A axis in
the negative direction
N20 SPOS=ACN(33.1);
Position spindle
N10 G1 X... Z....
N11 X... ANG=...
or contour over several
blocks:
N10 G1 X... Z...
N11 ANG=...
N12 X... Z... ANG=...
See G2, G3
N10 CALL VARNAME ;
variable name
N10 X... Z.... CHF=...
N11 X... Z...
N10 X... Z.... CHR=...
N11 X... Z...
See G2, G3
N10 CYCLE410(...) ; separa-
te block
Grinding