Siemens SINUMERIK 880 Programming Manual page 147

8 Contour Definition
8.2 Contour definition programming
Function Programming
(4)
N... X 2 ... Z 2 ... B-...
L F
1)
Chamfer N... X 3 ... Z 3 ...
B- ...means insert a chamfer
B ...means insert a radius
(The "minus" character is not a sign here; instead it
is a special identifier for B = chamfer)
(5)
N... X 2 ... Z 2 ... B...
L F
Radius N... X 3 ... Z 3 ...
The inserted radius must not be larger than the
smaller of the two paths.
(6)
N.. G02 (or G03) A... B... X 3 ... Z 3 ...
Straight line -
circular arc The circular arc must not exceed 180°. The
(tangent) sequence A (angle) followed by B (radius) must be
used.
(7)
N.. G02 (or G03) B... A... X 3 ... Z 3 ...
Circular arc -
straight line The circular arc must not exceed 180°. The sequence
(tangent) B, A must be used. A radius must not be inserted in
X 3 , Z 3 .
(8)
N.. G02 (or G03) I 1 ... K 1 ... I 2 ... K 2 ... X 3 ... Z 3...
Circular arc - Circle 1
circular arc
(tangent) The preparatory function is programmed for the first
circular arc. The second preparatory function is
always the opposite of the first one and is not
programmed. The interpolation parameters of the
second circle are referred to the end position of this
circle. Both interpolation parameters must be
programmed, even if one of the values is zero.
_______
1) Second block can also be a contour definition
8–4
Example
L F
1)
L F
L F
L F
© Siemens AG 1991 All Rights Reserved
X
X , Z B -
3 3
X
2
X
X , Z
3 3
X
B
X
B
X , Z
3 3
X
A
X , Z
3 3
B
X
X , Z
3 3
J
2
K
2
6ZB5 410-0HD02
SINUMERIK 880, (PG)
05.91
, Z
2
, Y
1 1
Z
, Z
2 2
Z
A,
Z
Z
K
1
J
1
Z