Siemens SINUMERIK 840D sl Programming Manual page 363

FXSW[<axis>]=...
FXS[<axis>]=... FXST[<axis>]=...
FXS[<axis>]=... FXST[<axis>]=... FXSW[<axis>]=...
Meaning
FXS:
FXST:
FXSW:
<axis>:
Note
The commands FXS, FXST and FXSW are modal.
The programming of FXST and FXSW is optional: If no parameter is specified, the last
programmed value or the value set in the relevant machine data applies.
Activate travel to fixed stop: FXS[<axis>] = 1
The movement to the destination point can be described as a path or positioning axis
movement. With positioning axes, the function can be performed across block boundaries.
Travel to fixed stop can be performed simultaneously for several axes and parallel to the
movement of other axes. The fixed stop must be located between the start and end positions.
NOTICE
Risk of collision
It is not permissible to program a new position for an axis if the "Travel to fixed stop" function
has already been activated for an axis/spindle.
Spindles must be switched to position-controlled mode before the function is selected.
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Command for activation and deactivation of the "Travel to fixed stop" function
FXS[<axis>]=1:
FXS=[<axis>]=0:
Optional command for setting the clamping torque
Specified as % of the maximum drive torque
Optional command for setting the window width for the fixed stop monitoring
Specified in mm, inches or degrees
Machine axis name
Machine axes (X1, Y1, Z1, etc.) are programmed
2.14 Supplementary commands
Activate function
Deactivate function
Fundamentals
363