Siemens SINUMERIK 808D Function Manual page 130

Activation/deactivation of TRACYL
The TRACYL function is activated in the program with
● TRACYL(d) in a separate block and deactivated with
● TRAFOOF in a separate block
d - machining diameter of the cylinder in mm
TRAFOOF deactivates any active transformation function.
Programming - principle
N10 G0 X... Z... SPOS=...
N20 G19 G94 T...
N30 SETMS(2)
N40 TRACYL(24.876)
N50 G1 F200 X... M3 S...
N600 G41 F200 Y... Z...
...
N90 G40 ...
N100 TRAFOOF
N110 G18 G95 T...
N120 SETMS
Explanation:
The movement of the machine axes ZM and CM produces this contour on the peripheral surface of the cylindrical workpiece
with the milling cutter in accordance with the Y-Z path programmed (straight or circular). The programmed X axis (infeed)
continues to be traversed as the X axis.
Peripheral surface of cylinder G19 (Y-Z plane):
OFFN address
Distance of groove side wall from the reference contour (also see "TRACYL programming example")
Programming: OFFN=...; Distance in mm
As a rule, the groove center line is programmed. OFFN determines the groove width when the milling radius compensation
is active (G41, G42). Set OFFN=0 once the groove has been completed.
130
; without YM axis
; the geometry axes X, Y, Z are programmed
; starting positions, spindle in position control
; plane, feed type, select milling tool
; switchover: master spindle is now the milling spindle
; switch on TRACYL, diameter: 24.876 mm
; feed, switch on milling spindle
; milling of the cylinder surface with milling tool radius compensation
; switch off TRACYL
; switch back to turning
; master spindle is main spindle
Function Manual
01/2017