Use Of "Tangential Control" Function; Overview - Siemens SINUMERIK 802D sl Function Manual

Tangential Control (T3)

22.3 Use of "Tangential control" function

22.3 Use of "Tangential control" function
22.3.1

Overview

Definition, activation
The "Tangential control" function requires the following sequence in the program:
● Assignment of leading axes and definition of following axis with TANG( ).
● The response at corners is specified, if required program TLIFT( ).
● Activate the defined coupling with TANGON( ).
Change response at corners, deactivate, delete definition
If required:
● Change the response at corners (TANG without following TLIFT).
● Deactivation of coupling with TANGOF( ).
● Deletion of definition with TANGDEL( ).
Effect on transformations
The position of the rotary axis to which follow-up control is applied can act as the input value
for a transformation.
See Kinematic Transformations (M1), Section "TRANSMIT"
Note
The user is recommended to program TLIFT if tangential control is used together with a
transformation. TLIFT prevents the follow-up axis from overtraveling and protects against
excessive compensating movements.
Explicit programming of following axis in an active coupling
If the following axis is programmed directly, then the positional data is added to the offset
angle programmed in the activation instruction TANGON. In this case, positional data with
AC, IC, DC, POS for the following axis are permitted.
Reference point approach
Axis coupling is deactivated during reference point approach.
Detailed programming instructions
Reference:
/BPN/ Operation and Programming, Nibbling
384
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0