4. Motion Control Instructions 4.8.3. Introduction to G Code Function 4.8.3.1 G90: Absolute Mode Function: After G90 is executed, the terminal position of each axis in G code is based on 0 unit and G91 can be used to switch into the relative mode. It is absolute mode for NC program by default. Format: N_G90 Parameter Explanation: N_: The row number of G code in NC program Example: The initial positions of axis X and Y are both 3000 units and the axis parameters are both default values. The G codes to be executed are as follows: N0 G90 N1 G0 X6000 Y6000 After G codes are executed, the Y/X curve for the whole movement process is shown below:
Y Position 6000 P2 3000 P1 O X Position 3000 6000 DVP-MC operating manual 4-185