Termination Of Follow-Up Control; Switching Off Intermediate Block Generation; Canceling The Definition Of A Follow-Up Axis Assignment - Siemens SINUMERIK 840D sl Function Manual

11.3.4

Termination of follow-up control

Programming
The programming is carried out using the pre-defined sub-program TANGOF. The name of the
following axis to be decoupled from its leading axes for the remainder of the machining
operation must be transferred to the control in conjunction with the subprogram name
TANGOF.
With reference to the example in Chapter "Assignment between leading axes and following
axis (Page 509)", the termination is as follows:
TANGOF(C)
The follow-up control process initiated with TANGON is terminated.
Termination of follow-up control initiates a preprocessing stop.
RESET/end of part program
An activated tangential control can remain active for further machining operations. For further
details, see:
References:
Function Manual, Basic Functions; Coordinate Systems, Axis Types, Axis Configuration (K2)
Chapter: Actual-value system for workpiece
Chapter: External zero offset
Note
The assignment between 2 master axes and a slave axis programmed with TANG( ... ) is
not canceled by TANGOF (see Chapter "Canceling the definition of a follow-up axis
assignment. (Page 511)").
11.3.5

Switching off intermediate block generation

In order to stop generating the intermediate block at corners during program execution with
active tangential follow-up control, the TANG() block must be repeated without following
TLIFT().
11.3.6

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.
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
T3: Tangential control - 840D sl only
11.3 Using tangential follow-up control
511