Detailed description
2.2 Protection zones
Basic logic functions: Axis monitoring, protection zones (A3)
48
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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Figure 2-12 Examples: convex and concave tool-related protection zones
Contour elements
The following contour elements are permissible:
•
G0
,
G1
for straight contour elements
•
G2
for circle segments in the clockwise direction
Permissible only for workpiece-related protection zones.
Not permissible for tool-related protection zones because they must be convex.
•
G3
for circular segments in the counter clockwise direction
A protection zone cannot be described by a complete circle. A complete circle must be
divided into two half circles.
The sequence
G2
,
G3
or
G3
,
G2
is not permitted. A short
G1
block must be inserted
between the two circular blocks.
Constraints
During the definition of a protection zone, the following functions must not be active or used:
•
Tool radius compensation (cutter radius compensation, tool nose radius compensation)
•
Transformation
•
Reference point approach (
G74
)
•
Fixed point approach (
G75
)
•
Dwell time (
G4
)
•
Block search stop (
STOPRE
)
•
End of program (
M17
,
M30
)
•
M functions:
M0
,
M1
,
M2
Programmable frames (
TRANS
,
ROT
,
SCALE
,
MIRROR
) and configurable frames (
G54
to
G57
)
are ineffective.
Inch/metric switchovers with
G70
/
G71
or
G700
/
G710
are effective.
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...