Detailed description
2.1 Axes
Basic logic functions: Axes, coordinate systems, frames (K2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
25
2.1.8
Positioning axes
Significance
Positioning axes are interpolated separately (each positioning axis has its own axis
interpolator). Each positioning axis has its own feedrate and acceleration characteristic.
Positioning axes can be programmed in addition to path axes (even in the same block). Path
axis interpolation (path interpolator) is not affected by the positioning axes. Path axes and
the individual positioning axes do not necessarily reach their block end points at the same
time.
Instructions
POS
and
POSA
are used to program positioning axes and define block change
criteria:
•
POS
Block change takes place when the path axes and positioning axes have reached their
block end points.
•
POSA
Block change takes place when the path axes have reached their end of block position.
Positioning axes continue to traverse beyond block limits to their block end point.
Concurrent positioning axes differ from positioning axes in that they:
•
Only receive their block end points from the PLC
•
Can be started at any time (not at block limits)
•
Do not affect the execution of current part programs.
Application
Typical positioning axes are:
•
Loaders for moving workpieces away from machine
•
Tool magazine/turret
Reference
References:
/FB2/ Function Manual, Extended Functions, Positioning Axes (P2)
/FB1/ Function Manual, Basic Functions, Spindles (S1)
FB3/ Function Manual, Special Functions,; Gantry Axes (G1)
/FB3/ Function Manual, Special Functions; Axis Couplings and ESR (M3)
/FB1/ Function Manual, Basic Functions; Basic PLC Program (P3)
/FB2/ Function Manual, Expansion functions; Oscillation (P5)
/FBSY/ Function Manual Synchronized Actions
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 ...