Delta DVP-15MC Series, Руководство по эксплуатации

Страница: 744 / 972

DVP-15MC Series Motion Controller Operation Manual
11-274
11
1
11.6.4.6 G3 (Anticlockwise Circular /Helical Interpolation)

Function explanation:
Circular interpolation: The cutter conducts the arc cutting of the processed object in the anticlockwise
direction at the feed speed given by parameter F on the circular arc with the fixed radius or the fixed
center on the specified plane.
Helical interpolation: The cutter moves in the anticlockwise direction on the circular arc of the specified
plane, which is a circular interpolation and simultaneously moves in the direction vertical to the
specified plane at the feed speed given by parameter F, which is linear interpolation.

Format:
Format1: N_G3 X_Y_Z_A_B_C_P_Q_I_J_(I_K_/J_K_)T_ E_E_F_
Format2: N_G3 X_Y_Z_A_B_C_P_Q_R_T_ E_E_F_

Parameter explanation:
N_: The row number of G code in NC program
X_Y_Z_: Specify the terminal positions of axis X, Y and Z corresponding to the terminal point of
circular arc; Unit: unit, data type: LREAL.
A_B_C_P_Q_: Specify the terminal positions of added axes, Unit: unit, data type: LREAL.
I_J_: Specify the coordinate position of the specified center on XY plane, Unit: unit, data type: LREAL.
I_K_: Specify the coordinate position of the specified center on XZ plane, Unit: unit, data type: LREAL.
J_K_: Specify the coordinate position of the specified center on YZ plane, Unit: unit, data type: LREAL.
T_: Specify the circle number of full circles, Unit: circle, data type: ULINT.
E_: Specify the acceleration and deceleration of the cutter. The positive number indicates the
acceleration; the negative number indicates the deceleration, Unit: unit/second
2
, data type: LREAL.
F: Specify the feed speed of the cutter, Unit: unit/second, data type: LREAL.

Instruction explanation:

Two axes among axis X, Y and Z make the circular interpolation on the plane specified by
G17/G18/G19. The 3rd axis makes the linear interpolation in the direction vertical to the
specified plane.

The added axis A, B, C, P and Q make the linear interpolation. The linear interpolation
and circular interpolation start up or stop simultaneously.

Both of E and F can be omitted. If there is only one row of code in the CNC editing area
and E, F are omitted, the velocity, acceleration and deceleration are decided by the axis
group parameters.
If there are multiple rows of codes and E and F in G3 code are omitted, the velocity,
acceleration and deceleration of the cutter are based on valid E and F in the previous
rows of codes above the row where G3 is. If the previous rows of G codes have not
specified E and F, “maximum velocity”, “maximum acceleration” and “maximum
deceleration” among axis group parameters will prevail.

In absolute mode for G90, the terminal point of a circular arc is of absolute coordinate
values regarding 0 unit in their respective directions as reference. In relative mode for
G91, the terminal point of a circular arc is of incremental values relative to the start point
of the circular arc.

No matter whether in the absolute mode or in relative mode, the coordinates of the center
of a circle I_J_(I_K_/J_K_) are always the relative coordinates with the start point as