Siemens SINUMERIK 840D Function Manual page 647

In addition to five fixed increment sizes (default setting: INC1, INC10, INC100, INC1000 and
INC10000), a variable increment size (INCvar) that can be set via the setting data is also
available.
Incremental travel in jogging mode
If the traversing key for the required direction (e.g. +) is pressed, the axis begins to traverse the
increment that has been set. If the traversing key is released before the increment has been
fully traversed, the movement is interrupted and the axis stops. If the same traversing key is
pressed again, the axis traverses the remaining distance until it is zero. Up to this point, the
movement can still be interrupted by releasing the traversing key.
Pressing the traversing key for the opposite direction does not have any effect, unless the
increment has been fully traversed or the movement has been aborted.
Cancel traversing movement
If the increment should not travel to the end, the traversing movement can be interrupted as
follows:
● RESET
● DB31, ... DBX2.2 (delete distance-to-go)
Incremental travel in continuous mode
The axis traverses the entire set increment when the traversing key is pressed (first rising
edge). If the same traversing key is pressed again (second rising edge) before the axis has
finished traversing the increment, the traversing movement is aborted, i.e. not completed.
Interrupt traversing movement
Behavior as for continuous traversing (see "Continuous manual traversing (Page 643)").
Cancel traversing movement
The traversing movement can be stopped and aborted by means of the following operations or
monitoring functions:
● Pressing the same traversing key again
● Pressing the traversing key for the opposite direction
● RESET
● DB31, ... DBX2.2 (delete distance-to-go)
● When the first valid limit is reached
● Deselection or change of the current increment (e.g. change from INC100 to INC10)
● When faults occur (e.g. on cancellation of the servo enable)
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
CAUTION
Traversing range limit inactive
Software limit switches and working-area limitations are only activated after reference
point approach.
H1: Manual traversing
17.5 Incremental manual traversing
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