
B-64120EN/01 4.DESCRIPTION OF PARAMETERS
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4.26 PARAMETERS OF POLAR COORDINATE
INTERPOLATION
#7 #6 #5 #4 #3 #2 #1 #0
AFC
5450
[Data type] Bit
AFC In polar coordinate interpolation mode, automatic override operation
and automatic feedrate clamp operation are:
0 : Not performed.
1 : Performed.
NOTE
In polar coordinate interpolation mode, the feedrate
component for a rotational axis increases as the
tool moves closer to the center of a workpiece.
Near the center of a workpiece, the maximum
cutting feedrate (parameter No.5462) may be
exceeded, causing servo alarm No.411 to be
issued. The automatic feedrate override function
and automatic feedrate clamp function
automatically control the feedrate to prevent the
feedrate component on a rotation axis from
exceeding a specified maximum cutting feedrate.
Axis (linear axis) specification for polar coordinate interpolation
5460
Axis (rotary axis) specification for polar coordinate interpolation
5461
[Data type] Byte
[Valid data range] 1, 2, 3, ... control axes count
These parameters set control axis numbers of linear and rotary axes to
execute polar interpolation.
Maximum cutting feedrate during polar coordinate interpolation
5462
[Data type] 2-word
[Unit of data, valid data range]
Valid data range
Increment system Units of data
IS-A, IS-B IS-C
Millimeter machine 1 mm/min 0, 6 to 240000 0, 6 to 100000
Inch machine 0.1 inch/min 0, 6 to 96000 0, 6 to 48000
Rotation axis 1 deg/min 0, 6 to 240000 0, 6 to 100000