Electronic Gear (Eg); Defining An Electronic Gear (Egdef) - Siemens SINUMERIK 840D sl Programming Manual

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3.16.4

Electronic gear (EG)

The "Electronic gear" function allows you to control the movement of a following axis according
to linear traversing block as a function of up to five leading axes. The relationship between each
leading axis and the following axis is defined by the coupling factor.
The following axis motion part is calculated by an addition of the individual leading axis motion
parts multiplied by their respective coupling factors. When an EG axis grouping is activated, it
is possible to synchronize the following axes in relation to a defined position. A gear group can
be:
● Defined
● Activated
● Deactivated
● Deleted
.
The following axis movement can be optionally derived from
● Setpoints of the leading axes, as well as
● Actual values of leading axes.
Non-linear relationships between each leading axis and the following axis can also be realized
as extension using curve tables (see "Path traversing behavior" section). Electronic gears can
be cascaded, i.e., the following axis of an electronic gear can be the leading axis for a further
electronic gear.
3.16.4.1

Defining an electronic gear (EGDEF)

An EG axis group is defined by specifying the following axis and at least one, however not more
than five, leading axis, each with the relevant coupling type.
Requirement
Requirements for defining an EG axis group:
It is not permissible to define an axis coupling for the following axis (or an existing one must first
be deleted with EGDEL).
Syntax
EGDEF(following axis,leading axis1,coupling type1,leading
axis2,coupling type2,...)
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Work preparation
3.16 Axis couplings
917