Detailed description
2.2 Exact stop
Basic logic functions: Continuouspath Mode, Exact Stop, LookAhead (B1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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Activation of an exact stop criterion
An exact stop criterion is activated in the part program by programming the following G-
functions:
G function
Meaning
G601
Exact stop fine
G602
Exact stop coarse
G603
Interpolator end
Evaluation factor for exact stop criteria
A parameter set-dependent evaluation of the exact stop criteria can be specified via the
following axis-specific machine data:
MD36012 $MA_STOP_LIMIT_FACTOR (exact stop coarse/fine and standstill factor)
Applications
•
Adaptation of the positioning response to different mass ratios, such as after a gearshift
•
Reduction in positioning time, depending on various machining states, such as roughing
and finishing
Assignable specification of the active exact stop criterion
The active exact stop criterion can be permanently specified for the part program commands
of the first G-group irrespective of the exact stop criterion programmed in the part program.
This specification can be made independently for each of the following part program
commands:
•
Rapid traverse:
G0
•
Machining commands:
G1, G2, G3, CIP, ASPLINE, BSPLINE, CSPLINE,
POLY, G33, G34, G35, G331, G332, OEMIPO01, OEMIPO02, CT
The setting is done in a channel-specific manner via the following machine data:
MD20550 $MC_EXACT_POS_MODE (exact stop conditions for G00 and G01)
Coding
Each exact stop criterion is location-coded:
•
Ones position E: Rapid traverse
•
Tens position Z: all other part program commands in the first G-group
MD20550 $MC_EXACT_POS_MODE = <
ZE >
Z or E
Active exact stop criterion
0
Programmed exact stop criterion
1
G601
(Exact stop window fine)
2
G602
(Exact stop window coarse)
3
G603
(Interpolator end)
Example
MD20550 $MC_EXACT_POS_MODE = 02
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 ...