Detailed description
2.1 Axis monitoring
Basic logic functions: Axis monitoring, protection zones (A3)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
33
Constraints
•
The software limit switches refer to the machine coordinate system.
•
The software limit switches must be inside the range of the hardware limit switches.
•
The machine axis can be moved to the position of the active software limit switch.
•
PRESET
After use of the function
PRESET
, the software limit-switch monitoring is no longer active.
The machine must first be re-referenced.
•
Endlessly rotating rotary axes
No software limit-switch monitoring takes place for endlessly rotating rotary axes:
MD30310 $MA_ROT_IS_MODULO == 1 (Modulo conversion for rotary axis and spindle)
Exception: Setup-rotary axes
Effects
Automatic operating modes (AUTOMATIC, MDI)
•
Without transformation, without overlaid movement, unchanged software limit switch:
A part program block with a programmed traversing motion that would lead to
overrunning of the software limit switch is not started.
•
With transformation:
Different reactions occur depending on the transformation type:
–
Behavior as above.
or
–
The part program block with a programmed traversing motion that would lead to
overrunning of the software limit switch is started. The affected machine axis stops at
the active software limit switch. The other machine axes participating in the traversing
motion are braked. The programmed contour is left during this process.
•
With overlaid motion
The part program block with a programmed traversing motion that would lead to
overrunning of the software limit switch is started. Machine axes that are traveling with
overlaid motion or have traveled with overlaid motion stop at the active software limit
switch in question. The other machine axes participating in the traversing motion are
braked. The programmed contour is left during this process.
Manual operating modes
•
JOG without transformation
The machine axis stops at the software limit switch position.
•
JOG with transformation
The machine axis stops at the software limit switch position. Other machine axes
participating in the traversing motion are braked. The preset path is left during this
process.
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 ...