
B–63173EN–1/01
1. AXIS CONTROL
62
The roll–over function prevents coordinates for the rotation axis from
overflowing. The roll–over function is enabled by setting bit 0 (ROAx)
of parameter 1008 to 1.
For an incremental command, the tool moves the angle specified in the
command. For an absolute command, the coordinates after the tool has
moved are values rounded by the angle corresponding to one rotation set
in parameter No. 1260. The tool moves in the direction in which the final
coordinates are closest when bit 1 (RABx) of parameter No. 1008 is set
to 0. Displayed values for relative coordinates are also rounded by the
angle corresponding to one rotation when bit 2 (RRLx) of parameter No.
1008 is set to 1.
#7 #6 #5 #4 #3 #2 #1 #0
1006 ROSx ROTx
NOTE
After setting this parameter, turn the power off then on again
so that the setting will take effect.
[Data type] Bit axis
ROTx, ROSx Setting linear or rotation axis
ROSx ROTx Description
0 0
Linear axis
(1) Inch/metric conversion is done.
(2) All coordinate values are linear axis type.
(Not rounded in 0 to 360_)
(3) Stored pitch error compensation is linear axis type (Refer to pa-
rameter No. 3624)
0 1
Rotation axis (A Type)
(1) Inch/metric conversion is not done.
(2) Machine coordinate values are rounded in 0 to 360_. Absolute
coordinate values and relative coordinate values are rounded or
not rounded by parameter No. 1008 #0 and #2.
(3) Stored pitch error compensation is the rotation type. (Refer to pa-
rameter No. 3624)
(4) Automatic reference position return (G28, G30) is done in the ref-
erence position return direction and the move amount does not ex-
ceed one rotation.
1 0
Setting is invalid (unused)
1 1
Rotation axis (B type)
(1) Inch/metric conversion is not done.
(2) Machine coordinate values, absolute coordinate values and rela-
tive coordinate values are linear axis type. (Is not rounded in 0 to
360_)
(3) Stored pitch error compensation is linear axis type (Refer to pa-
rameter No. 3624)
(4) The rotation axis roll over function and index table indexing func-
tion (M series) cannot be used.
1.5.3
Rotary Axis Roll Over
General
Parameter