
PROGRAMMING19. HIGH SPEED CUTTING FUNCTIONS
B–63534EN/02
526
P1
P0
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
0 16000 32000 48000
Speed (mm/min)
P5
Acceleration (mm/sec )
2
Fig.19.10(n) Acceleration pattern in case of – move and deceleration
When Optimum torque acceleration/deceleration is enabled, linear type
positioning for rapid traverse is selected automatically in AI high
precision contour control and AI nano high precision contour control
mode even if the parameter LRP, bit 1 of parameter No. 1401, is set to 0
(nonlinear type is selected).
Optimum torque acceleration/deceleration is enabled when AI high
precision contour control or AI nano high precision contour control mode
is active and the conditions under which AI high precision contour control
and AI nano high precision contour control are satisfied.
Optimum torque acceleration/deceleration can be performed on axes
which are selected by parameter No.7510.
In the same direction move, it is necessary that the acceleration during
deceleration is set 1/3 of one during acceleration at least.
Also, the acceleration pattern data must be set so that the time required
for the deceleration from the rapid traverse rate to a speed of 0 does not
exceed 4000 (msec). This does not include the acceleration change time
of bell–shaped acceleration/deceleration.
If the deceleration acceleration ratio or the time required for the
deceleration to a speed of 0 exceeds the above range, P/S alarm (P/S5455)
will be issued at the time rapid traverse is executed.
A slight error will occur between the specified acceleration and the actual
acceleration.
Optimum torque acceleration/deceleration is disabled in tool center point
control mode (except startup and cancellation). If this occurs, the
acceleration/deceleration for rapid traverse follows the reference
acceleration.
Limitations
D Linear type positioning
D Modes and conditions
D Target axes
D Acceleration pattern
D Tool center point control