
B-63943EN-1/02 7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL
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The descent angle
θ
during descent on the Z-axis (angle formed by the
XY plane and the tool center path) is as shown in the figure. The
descent angle is divided into four areas, and the override values for the
individual areas are set for the following parameters:
Parameter No. 8456 for area 2
Parameter No. 8457 for area 3
Parameter No. 8458 for area 4
For area 1, however, no parameter is available, and an override of
100% is used at all times. The feedrate obtained according to other
feedrate control is multiplied by the override value of the area to
which descent angle
θ
belongs.
Area1 0º ≤
θ
< 30º
Area2 30º ≤
θ
< 45º
Area3 45º ≤
θ
< 60º
Area4 60º ≤
θ
< 90º
The feedrate can be overridden with an inclination by setting bit 1
(ZG2) of parameter No. 19515 to 1. In this case, specify the override
value for area 1 in parameter No. 19516.
XY plane
Z
30
°
45
°
60
°
90
°
rea1
rea2
rea3
rea4