7. Feed Functions
7.8 Rapid Traverse Constant Inclination Multi-step Acceleration/Deceleration
126
Detailed description (decision method of steps)
For rapid traverse constant inclination multi-step acceleration/deceleration, the number of steps is
automatically adjusted by set parameter.
The acceleration per step is assumed to be a decrease by 10% of the maximum acceleration per
step. Therefore, the number of steps is decided as follows.
"Step" = (100 - "#2152 acc_rate") / 10 + 1 (Discard fractions less than 1)
The acceleration/deceleration pattern when the parameter setting value is as follows is shown
below.
No. Item
Setting
value
2001 rapid
Rapid traverse rate
36000
[mm/min]
2151 rated_spd
Rated speed
16800
[mm/min]
2152 acc_rate
Acceleration rate in proportion to the
maximum acceleration rate
58 [%]
Acceleration
Speed
rapid
=36000
rated_spd
=16800
a
max
0.58a
max
0.9a
max
0.8a
max
0.7a
max
The acceleration decreases by 10% of
the maximum acceleration a
max
.