TOMATECH AUTOMATION
Fig. 3-15:
Program:
G31 Z200 F100
G01 X100 Z300
Ⅰ Programming
b. Signals relevant to G31
Skip signal:
SKIP:G6.6
Type: input signal
Function: G6.6 ends the skip cutting. I.e. in a block containing G31, the skip signal
becoming the absolute coordinate position of “1” is to be stored in the macro
variable (#5011～#5015 separately corresponds to X, Z, Y)
Operation: when the skip signal becomes “0”, CNC executes as follows:
When the block is executing G31, CNC stores the current absolute coordinates
Of each axis. CNC stops G31 to execute the next block, the skip signal detects
its state instead of its RISING EDGE. So when the skip signal is “1”, it meets the
skip conditions.
Note:
CNC immediately stops the feed axis (without acceleration/deceleration execution), and G31
feedrate should be as low as possible below 1000 mm/min to get the precise stop position.
3.16 Workpiece Coordinate System G50
Command format: G50 X(U) Z(W) ;
Command function: define the absolute coordinates of current position and create the
workpiece coordinates system (called floating coordinates system) by
setting the absolute coordinates of current position in the system. After
G50 is executed, the system takes the current position as the program
zero (program reference point), and the system returns to the point after
executing the program zero return. After the workpiece coordinate system
is created, input the coordinate values with the coordinate system in the
absolute coordinates programming until the next workpiece coordinate
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