Programming instructions

4-48
Motion Blocks NC Programming 17VRS
DOK-MTC200-NC**PRO*V17-ANW1-EN-P
•
The effective distances RX, RY and RZ give the absolute distance to
the respective linear main axis. They therefore must not be pro-
grammed using a sign in the NC-program.
•
Effective distances having an absolute value of 0 are not programmed.
•
The programming of the effective distances in the NC-program is ac-
tive for a single NC-block and must be programmed in the NC-block in
which it is to be active.
•
The effective distances can be programmed in any desired order in the
NC-program and without reference to the rotary axes.
•
Unreasonable entries for effective distances can cause the rotary main
axes to turn too fast or too slow, or they can result in no speed com-
ponents at all.
CAUTION
In conjunction with the KDA main spindle drive, it is ab-
solutely essential to perform the C-axis movement with
the minimized lag function G6 active.
Example NC program - spiral groove
C Axis
30 mm
70 mm
Eff.Radius
50 mm
RZ
Y
X
Fig. 4-47: Machining a spiral groove on a face surface
G90 G06 G17
Process (machining plane) XY,
end
•
•
•
G00 X-30 Y0 Z501 C90
Approach; positioning of C-axis
G01 Z497 F500
Lowering the cutter
[spiral groove machining]
G01 G91 X-40 C-270 RZ50 F1200
Spiral groove on the end surface
•
•
RET Return to program beginning
NC program