
1.AXIS CONTROL B-63783EN-1/01
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1.6.3 Rotation Axis Roll-over
General
The roll-over function prevents coordinates for the rotation axis from
overflowing. The roll-over function is enabled by setting bit 2 of
parameter ROL 1009 to 1.
In the absolute mode, the specified value is converted to the remainder
obtained by dividing the specified value by 360 degrees. The
difference between the converted value and the current value indicates
the angular displacement. The movement by angular displacement is
always made in the shorter direction. That is, if the difference between
the converted value and the current value is greater than 180 degrees,
the movement to the specified position is made in the opposite
direction. If the difference is 180 degrees, the movement is made in the
normal direction. In the incremental mode, a specified value directly
indicates an angular displacement.
Parameter
#7 #6 #5 #4 #3 #2 #1 #0
1006 ROP ROS ROT
[Input type] Parameter input
[Data type] Bitaxis
# 0
# 0 # 0
# 0 ROT
ROTROT
ROT Specifies whether the axis requires inch/metric conversion.
0: Axis requires inch/metric conversion (linear axis).
1: Axis does not require inch/metric conversion (rotation axis).
# 1
# 1 # 1
# 1 ROS
ROSROS
ROS Specifies whether the machine coordinate system used for stroke check
and automatic reference position return is linear or rotational.
0: Linear (linear axis)
1: Rotation (rotation axis)
For a rotation axis, the machine coordinate system is normalized within
the angular displacement per rotation specified for parameter No. 1260.
In this case, automatic reference position return (G28, G30) is performed
in the same direction as manual reference position return and the
angular displacement does not exceed 360 degrees. Also see the item on
parameter No. 1260.