Canceling The Definition Of A Follow-Up Axis Assignment - Siemens SINUMERIK 840D sl Function Manual

8.3.6

Canceling the definition of a follow-up axis assignment.

A follow-up axis assignment specified by TANG() remains active after TANGOF. This inhibits a
plane change or geometry axis switchover.
The predefined subprogram TANGDEL is used to cancel the definition of a follow-up axis
assignment so that the follow-up axis can be operated dependent on new leading axes when
a new follow-up axis assignment is defined.
TANGDEL(C)
The existing definition in the example of TANG(A, X, Y) is canceled.
Example for plane change
N10 TANG(A, X, Y, 1)
N20 TANGON(A)
N30 X10 Y20
...
N80 TANGOF(A)
N90 TANGDEL(A)
...
N120 TANG(A, X, Z)
N130 TANGON(A)
...
N200 M30
Example for geometry axis switchover
If the definition of the follow-up axis assignment is not canceled, an attempt to execute a
geometry axis switchover is suppressed and an alarm is output.
N10 GEOAX(2,Y1)
N20 TANG(A, X, Y)
N30 TANGON(A, 90)
N40 G2 F8000 X0 Y0 I0 J50
N50 GEOAX(2, Y2)
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
8.3 Using tangential follow-up control
; delete defined coupling of A to X and Y as leading
axes
; A can be coupled to new leading axes
; Alarm 14415, geo axis to be deleted is still
; Leading axis of follow-up axis assignment
T3: Tangential control
425