
B–63010EN/02
4. DESCRIPTION OF PARAMETERS
299
#7
5484
#6 #5 #4 #3 #2
ANM
#1 #0
SDC
[Data type] Bit
SDC In normal direction control:
0 : A C–axis movement is automatically inserted between blocks so that
the C–axis is directed at right angles to the direction of motion at the
start point of each block. (After movement on the C–axis, movement
(along the X–axis and Y–axis) specified by the block is performed.)
1 : If the amount of C–axis movement is smaller than the value set in
parameter No.5485, a C–axis movement is not inserted before a
block. Instead, it is performed together with movement along the
X–axis and Y–axis.
ANM In AI contour control mode, the normal direction control function is:
0 : Disabled.
1 : Enabled.
5485
Limit imposed on the insertion of a single block for rotation about the normal
direction control axis
[Data type] 2–word
[Unit of data]
Increment system IS–A IS–B IS–C Units
Rotation axis 0.01 0.001 0.0001 deg
[Valid data range] 1 to 99999999
When normal direction control is applied, the amount of movement
(rotation angle) on the normal direction control axis (C–axis), calculated
so that the C–axis is directed at right angles to the direction of motion at
the start point of a block, may be smaller than the value specified in this
parameter. In such a case, the C–axis movement is not inserted before the
movement (along the X–axis and Y–axis) specified by the block. Instead,
the C–axis movement is performed together with the movement specified
by the block. If the amount of movement (rotation angle) on the C–axis is
greater than or equal to the value specified with this parameter, the C–axis
movement is inserted, and the movement specified by the block is made
after the completion of the C–axis movement.
NOTE
This parameter is enabled when the SDC parameter (bit 0
of parameter No.5484) is set to 1. If a value equal to or
greater than 180 degrees is specified, a C–axis movement
is inserted only when circular interpolation involving a C–axis
rotation of 180 degrees or more is performed.