45
CNC System Instruction
6
）
G02/G03: Circular Cutting Commands
This command is used for circular interpolation, including clockwise circular cutting command G02 and counterclockwise
circular cutting command G03. See the figure below for the setting of directions.
Format
：
G02[03] X[U]n Y[V]n In Jn [Fn] or G02[03] X[U]n Y[V]n Rn [Fn]
G02[03]PPn In Kn [Fn]
or
G02[03] PPn Rn [Fn]
Notes:
I and J are the increased values of circle center relative to the origin point in X
-
axis and Y
-
axis respectively( distance
between the circle center and the origin point).
R is the radius of circle( R is a positive value and can be used to represent radius where circular arc
≤180
°).
Alternatively, if I and J are designated, R will be not necessary; if R is designated, I and J will be not necessary.
G04: Pause/Delay Command
This command is used for settling time delay. When this command is executed in a program, the time delay
defined by command L in seconds will be given.
Format:
G04 Ln
Example:
G04 L2.4
（
To delay 2.4 seconds
）
In the execution process of G04 command, if [START] key is pressed, the time delay will be disabled and the subse-
quent program will be executed continually. If [Exit] key is pressed, the execution of the current program will be abort-
ed.
G26/G27/G28: Return Reference Point Commands
Theses commands make the cutting torch return to the reference point automatically.
Format: G26
Return to the reference point along X axis.
G27
Return to the reference point along Y axis.
G28
Return to the reference point simultaneously along both X and Y axes.
Example:
G28(simultaneously return to reference point, equivalent to execute G00 command)
G22/G80: Repetitive Commands
These commands are used for execution of program loop. G22 is used to designate the start of loop and number
of cycles L. G80 is the end mark of loop. These commands may be used for nested loop not more than 5 levels.
G22 and the nearest G80 form a loop.
Example (G02):
G92 X0 Y0
G00 X40 Y50
G02 X160 V0 I60 J20
G28
M02
Example (G03
）
:
G92 X0 Y0
G00 X40 Y50
G03 X160 V0 I60 J20
（或
G03 X160 V0 R63.25
）
G28
M02
Current Torch Position
Expected Torch Position
+100
+40
+160
+
G02
O
’
G03
70
50
