Forward mapping of drive position (P-AXIS-00436)

Principle of electronic gear coupling
Principle of electronic gear coupling


Forward mapping of drive position


Corresponding to the coupling instructions on drive level, an active gear coupling leads to an offset of the axis positions to the programmed command positions in NC channel.

Gear coupling can be activated either by configuration in axis parameters (see multi_link[i]) or via the HLI (see @@[FCT-A9]).

The axis positions and program coordinates are newly initialised at restart of program or by an explicitly programmed position request (#CHANNEL INIT [CMDPOS]). The parameter must be set to 1, if the input coordinates of the gear coupling (e.g. absolute program coordinates) should be recalculated by forward mapping. See also P-AXIS-00460.



Data type


Data range

0: No forward mapping of drive position (default).

1: Forward mapping is executed.

Axis types

T, R


T: ----

R: ----

Default value


Drive types



Configuration example: Forward mapping is active during gear coupling

kenngr.multi_link[0].lead_axis                    4

kenngr.multi_link[0].factor_numerator             1

kenngr.multi_link[0].factor_denominator           2

kenngr.recalc_link_main_input_position            1

Configuration example: Forward mapping with active gear coupling via the HLI

kenngr.recalc_link_main_input_position            1