Siemens SINUMERIK 802D sl, Руководство по эксплуатации функций, Страница: 413 / 462

Feed (V1)
24.1 Path feedrate F
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
413
● SD42010 = < 0 to -1:
Starting/braking of the feedrate axis at configured acceleration rate. Jerk according to
current BRISK/SOFT programming.
● SD42010 = 0:
Abrupt starting/braking of the feedrate axis on thread cutting.
● SD42010 = > 0:
The thread run-up/deceleration distance is specified. To avoid technology alarm 22280,
the acceleration limits of the axis must be observed in case of very small run-in and run-
out paths.
Note
DITE acts at the end of the thread as an approximate distance. This achieves a smooth
change in the axis movement.
Pitch change F with G34, G35
If you already know the starting and final lead of a thread, you can calculate the pitch change
F to be programmed according to the following equation:
>PPUHY @ )
.
H
.
D
/
*
The identifiers have the following meanings:
K
e
Pitch of axis target point coordinate [mm/rev]
K
a
Initial pitch (progr. under I and K) [mm/rev]
L
G
Thread length in [mm]
24.1.2 Feedrate for G63 (tapping with compensation chuck)
Note
The tapping function with compensation chuck is not available for versions G/N plus and pro.
Feedrate F
In the case of G63 it is necessary to program a feedrate F. It must be suitable for the
selected spindle speed S (programmed or set) and for the pitch of the drill:
Feedrate F [mm/min] = speed S [rev/min] x pitch [mm/rev]