Incremental Dimensions (G91, Ic) - Siemens SINUMERIK 828D Programming Manual

Geometry settings
8.3 Dimensions
8.3.2

Incremental dimensions (G91, IC)

Function
With incremental dimensions, the position specification refers to the last point approached,
i.e. the programming in incremental dimensions describes by how much the tool is to be
traversed.
Modal incremental dimensions
Modal incremental dimensions are activated with the
axes programmed in subsequent NC blocks.
Non-modal incremental dimensions
With preset absolute dimensions (
incremental dimensions for individual axes.
Note
Non-modal incremental dimensions (
SPOSA
Syntax
G91
<axis>=IC(<value>)
Significance
G91
:
IC
<axis>
<value>
172
) and interpolation parameters (
: Command for the activation of modal incremental dimensions
Command for the activation of non-modal incremental dimensions
: Axis identifier of the axis to be traversed
: Position setpoint of the axis to be traversed in incremental dimensions
G91
), the command can be used to set non-modal
G90 IC
) are also possible for spindle positioning (
IC
, , ).
I J K
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
command. Generally it applies to all
,
SPOS
Fundamentals