Detailed Description
2.1 General functionality
Travel to Fixed Stop (F1)
2-16 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
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):
• IS "Axis/spindle lock" (DB31, ... DBX1.3)
• IS "Controller enable" (DB31, ... DBX2.1)
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 toPOSA axes, block changes are made independently
of the fixed stop motion.
Vertical axes
The "Travel to fixed stop" function can be used for vertical axes even when alarms are
active.
Should the traversal of vertical axes be aborted as a result of an FXS alarm, the relevant
drives are not disconnected from the supply via the VDI interface.
This functionality has the same effect on vertical axes as an electronic weight compensation
and can be configured via machine parameter:
MD37052 FIXED_STOP_ALARM_REACTION.
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