Siemens Sinumerik 802D sl Programming Manual page 45

04.07
Spindle rotating angle from start-point pulse specified by Q command (G code
system A)
Example of programming
G00 U ⋅⋅⋅ ;
G32 W ⋅⋅⋅ F ⋅⋅⋅ ;
G00 U ⋅⋅⋅ ;
W ⋅⋅⋅ ;
U ⋅⋅⋅ ;
G32 W ⋅⋅⋅ ;
·
·
·
G00 U ⋅⋅⋅ ;
G32 W ⋅⋅⋅ Q180. ;
G00 U ⋅⋅⋅ ;
W ⋅⋅⋅ ;
U ⋅⋅⋅ ;
G32 W ⋅⋅⋅ Q180. ;
·
·
·
Fig. 2-22
Notice
If a Q command is specified for multiple-thread cutting, continuous thread cutting is
not possible.
G33W Q90
G33W ←
point pulse, continuous thread cannot be cut.
The spindle rotation angle from the start-point pulse is specified using a Q com-
mand (0 to 360_) disregarding of the spindle rotating direction.
© SIEMENS AG 2007 All rights reserved
SINUMERIK 802D sl/840D sl840D/840Di sl/840Di/810D ISO Turning -- 04.07 Edition
Thread cutting of thread A
Thread cutting of thread B
Spindle rotation angle from start-point pulse by Q command
. . . Since the operation is suspended at this block to wait for the start-
Commands Calling Axis Movements
2.2 Using the thread cutting function
A
B
2-45