Incremental Travel (Inc); General Functionality - Siemens SINUMERIK 840D sl Function Manual

Extended functions
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Manual and Handwheel Travel (H1)

4.3 Incremental travel (INC)

4.3
Incremental travel (INC)
4.3.1

General functionality

Programming increments
The path to be traversed by the axis is defined by so-called increments (also called
"incremental dimensions"). The required increment must be set by the machine user before
the axis is traversed.
The setting is made on the machine control panel, for example. Once the corresponding
logic operation has been performed, the
DB31, ... DBB5 ff (machine function: INC1 to INCvar)
interface signal associated with the required increment should be set by the PLC user
program.
Settable increments
The user can set up to six different increment sizes:
● Five fixed increments
● One variable increment (INCvar)
Increment weighting
The path weighting of one JOG increment is defined using axial machine data
MD31090 $MA_JOG_INCR_WEIGHT
(weighting of an increment of a machine axis for INC/handwheel).
284
The increment size is defined collectively for all axes with the following general machine
data:
MD11330 $MN_JOG_INCR_SIZE_TAB (increment size INC/handwheel)
INC1, INC10, INC100, INC1000, and INC10000 are the default settings.
The increment setting for the variable increment can also be made for all axes using
general setting data (size of the variable increment for INC/handwheel).
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions

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