Programming technology functions (cycles)
8.2 Rotate
Turning
334 Operating Manual, 03/2013, 6FC5398-8CP40-3BA1
Parameter Description Unit
DA Thread changeover depth (inc)
First machine all thread turns sequentially to thread changeover
depth DA, then machine all thread turns sequentially to depth 2 ·
DA, etc. until the final depth is reached.
DA = 0: Thread changeover depth is not taken into account, i.e.
finish machining each thread before starting the next thread.
mm
Machining:
• Complete, or
• from turn N1
N1 (1...4) start thread N1 = 1...N
or
• only thread NX
NX (1...4) 1 from N threads
Parameters, G code program Parameters, ShopTurn program
PL Machining plane T Tool name
D Cutting edge number
S / V
Spindle speed or constant
cutting rate
rpm
m/min
Parameter Description Unit
P
• Thread pitch in mm/revolution
• Thread pitch in inch/revolution
• Thread turns per inch
• Thread pitch in MODULUS
mm/rev
in/rev
turns/"
MODULUS
G Change in thread pitch per revolution - (only for P = mm/rev or in/rev)
G = 0: The thread pitch P does not change.
G > 0: The thread pitch P increases by the value G per revolution.
G < 0: The thread pitch P decreases by the value G per revolution.
If the start and end pitch of the thread are known, the pitch change to be
programmed can be calculated as follows:
|P
e
2
- P
2
|
G = ----------------- [mm/rev2]
2 * Z
1
The meanings are as follows:
P
e
: End pitch of thread [mm/rev]
P: Start pitch of thread [mm/rev]
Z
1
: Thread length [mm]
A larger pitch results in a larger distance between the thread turns on the
workpiece.
mm/rev
2
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