G02: Circular Interpolation Cw (Center Specified) - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

G02: Circular interpolation CW (center specified)

Moves along an arc (CW) to the specified coordinate position (end point) from the current position (start point).
The moving speed is the commanded feed speed.
Code Format
G02
G02 X x
Processing details
• G02 (CW) gives the end point coordinates of the arc an X, Y, (and Z) address, and specifies the center coordinates of the
arc as an I, J, (and K) address. The end point coordinates of the arc can be given as an absolute value or incremental
value, but the center coordinates of the arc must be commanded as an incremental value from the start point.
• The base axis of the center coordinates is the axis name set in [Motion Control Parameter][G-code Control
Parameter][G-code Control System Parameter]"Plane Composition""Base Axis I to K".
• The G02 command is modal. It remains in effect until another G-code from the same group is used. When G02 is
continuous, from the next block and after, it can only be commanded by coordinate language. The direction of rotation of
the arc is CW (clockwise).
Y
G02
X
X-Y plane (G17)
• Arcs that span over multiple quadrants can be executed with one block command.
• The following plane selections are available for an arc, and are selected by using G-code. When an axis without a plane
selection is specified, a minor error (error code: 1FC3H (details code: 030AH)) occurs.
Plane selection
X-Y plane
Z-X plane
Y-Z plane
• When commanding circular interpolation, if the center is not specified a minor error (error code: 1FC3H (details code:
0306H)) occurs.
• There are three methods for deceleration check. They are command deceleration check method, smoothing check method,
and in-position check method. Set the deceleration check method to be used in fast forward/cutting in [Motion Control
Parameter][G-code Control Parameter][G-code Control System Parameter]"Control Setting""Deceleration Check".
Refer to deceleration check for deceleration check. (Page 178 Deceleration check)
Y y I i J j
Z
G02
G02
G02
X
X
G02
Z
Z-X plane (G18)
G-code
G17
G18
G19
F f
Feed speed
Arc center coordinates
Coordinate command
Y
Z
G02
Y-Z plane (G19)
5 G-CODE CONTROL PROGRAMS
Y
5.6 G-Code
5
105