Setting Data - Siemens SINUMERIK 840D Function Manual

Contour monitoring
The axis contour monitoring function is inoperative while "Travel to fixed stop" is active.
Positioning axes
For "Travel to fixed stop" with positioning axes POSA, the block change is executed even when
the positioning axis has not yet reached the fixed stop by this time.
Vertical axes
The "Travel to fixed stop" function can be used for vertical axes even when alarms are active.
If a function-specific alarm occurs for a vertical axis when traveling to fixed stop, the NC/PLC
interface signal DB11, DBX6.3 (mode group ready) is not reset. This means that the
corresponding drive is not de-energized.
This corresponds to an electronic weight compensation for the vertical axis and can be
configured via the following machine data:
MD37052 $MA_FIXED_STOP_ALARM_REACTION
Further information
Further information on vertical axes can be found in:
● Function Manual Drive Functions SINAMICS S120
● Function Manual Monitoring and Compensating; Compensation, electronic weight
counterbalance
3.2.6

Setting data

The values programmed via the function-specific FXS, FXST and FXSW commands are written
block-synchronously to the following, immediately effective, axis-specific setting data:
Switching the function on/off
SD43500 $SA_FIXED_STOP_SWITCH (selection/deselection of travel to fixed stop)
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
F1: Travel to fixed stop
3.2 Detailed description
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