Detailed Description
2.1 General functionality
Basic logic functions: Travel to fixed stop (F1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
23
The following is assumed in the example below:
MD37050 $MA_FIXED_STOP_ALARM_MASK = 0
⇒ No alarm is generated in response to an error. A block change therefore takes place and
the error scenario can be evaluated via the system variable
Example
X300 Y500 F200 FXS[X1]=1 FXST[X1]=25 FXSW[X1]=5
IF $AA_FXS[X1]=2 GOTOF FXS_ERROR
G01 X400 Y200
Inoperative IS signals
The following IS signals (PLC ! NCK) are inoperative for axes at the fixed stop until the
function is deselected (incl. traversing motion):
•
NST DB31, ... DBX1.3 ("Axis-/spindle disable")
•
NST DB31, ... DBX2.1 ("Controller enable")
Actual position at fixed stop
System variable $AA_IM[x] can determine the actual position of the machine axis, e.g. for
test purposes after successful "travel to fixed stop."
Combination with other functions
"Measure with deletion of distance to go" (command
MEAS
) and "travel to fixed stop" cannot
be programmed at the same time in one block.
Exception:
One function is acting on a path axis while the other is acting on a positioning axis or both
functions are acting on positioning axes.
Contour monitoring
The axis contour monitoring function is inoperative while "Travel to fixed stop" is active.
Positioning axes
When "Travel to fixed stop" is applied to
POSA
axes, block changes are made independently
of the fixed stop motion.
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 ...