Programming
8.3 Axis movements
8-160
SINUMERIK 802D sl Operation and Programming Nibbling (BP-N), 06/2006 Edition
6FC5 398-3CP10-0BA0
Note
If an axis is located between two positions, it does not traverse in response to an
incremental position command with CIC (...). It is always advisable to program the first travel
command with an absolute position value.
Example 2
N10 FA[B]= 300 ; Feedrate for position axis B
N20 POS[B]=CAC(10) ; Approach coded position 10 (absolutely)
N30 POS[B]=CIC(-4) ; Retract by 4 spaces from the current position
8.3.9 Tangential control: TANG, TANGON, TANGOF, TLIFT, TANGDEL
Functionality
The function is only available for SINUMERIK 802D sl pro.
The tangential control is used if, e.g. a tool is to be guided tangentially to the workpiece con-
tour to be traversed.
The TANG( ) function is used to define coupled axes using a coupling factor. Coupled axes
include a following axis (rotary axis) and two leading axes (axes of the machining plane).
The following axis is guided along the tangent to the path traversed by the leading axes.
TANGON( ) is used to enable the coupling, TANGOF( ) is used to disable the coupling. It is
possible to specify an offset angle for the following axis (rotary axis) by specifying an angle
programmed in TANGON( ). The TANGDEL( ) instruction can be used to delete a defined
coupling in the disabled condition.
Defined parameters or values must be transferred using the relevant functions. If no values
are specified for the axes in all parameters, these need not be written.
Programming
TANG(FAxis,LAxis1,LAxis2,Couple,CS,Opt) ; Definition of the tangential coupling
TANGON(FAxis,Angle, Dist, Angletol) ; Activate tangential control
TANGOF(FAxis) ; Deactivate tangential control
TLIFT(FAxis) ; Insert intermediate block at contour cor-
ners
TANGDEL(FAxis) ; Clear tangential coupling
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