B-64693EN-1/01
- 1162 -
7. FEEDRATE CONTROL/ACCELERATION AND
DECELERATION CONTROL
For the function of decelerating according to the cutting load in AI contour control II, the
override set in a parameter can be applied according to the angle at which the tool moves
downward along the Z-axis. The feedrate obtained according to other conditions is
multiplied by the override for the area containing angle
θ
at which the tool moves
downward.
However, when bit 1 (ZG2) of parameter No. 19515 is set to 0, no parameter is available
to area 1, and 100% is applied at all times. When bit 1 (ZG2) of parameter No. 19515 is
set to 1, set an override value for area 1 in parameter No. 19516.
Area 1
0°
≤θ
<30°
Area 2
30°
≤θ
<45°
Area 3
45°
≤θ
<60°
Area 4
60°
≤θ≤
90°
#7
#6
#5
#4
#3
#2
#1
#0
8459
OVRB
[Input type] Parameter input
[Data type] Bit path
#3 OVRB
For deceleration based on a feedrate difference or acceleration rate in AI contour control,
override is:
0:
Disabled.
1:
Enabled.
Usually, override is enabled for a specified feedrate, and AI contour control is applied to
the specified feedrate. When this parameter is set to 1, override is applied to a feedrate
placed under AI contour control.
8465
Maximum allowable feedrate for AI contour control
[Input type] Setting input
[Data type] Real path
[Unit of data] mm/min, inch/min, deg/min (input unit)
[Min. unit of data] Depend on the increment system of the reference axis
[Valid data range] Refer to the standard parameter setting table (C)
(When the increment system is IS-B, 0.0 to +999000.0)
This parameter sets the maximum allowable feedrate for contour control.
If a feedrate higher than the setting of this parameter is specified in the AI contour control
mode, the feedrate is clamped to that set in this parameter.
If this parameter is set to 0, no clamping is performed.
When bit 7 (NOF) of parameter No. 8451 is set to 1, the tool moves, assuming that the
feedrate set in this parameter is specified. If 0 is set in this parameter at this time, a
movement is made at the specified feedrate.
8466
Maximum allowable feedrate for AI contour control (when a rotation axis is singly specified)
[Input type] Setting input
[Data type] Real path
[Unit of data] mm/min, inch/min, deg/min (machine unit)
[Min. unit of data] Depend on the increment system of the reference axis
[Valid data range] Refer to the standard parameter setting table (C)
(When the increment system is IS-B, 0.0 to +999000.0)
This parameter sets the maximum allowable feedrate for AI contour control when a
rotation axis is singly specified.