THERMACUT EX-TRACK - G-Codes; G20 - Imperial Mode; G21 - Metric Mode; G90 - Absolute Commands

EX-TRACK
®
Operator Manual, Revision T-178
9.10.7. G-codes
Motion codes are used to define the systems programed motions such as rapid feed, circular feed,
offset value etc. The default of program input values is positive (+) therefore only a negative (-) value
requires input when programming.
9.10.8. G92 – program zero point
The G92 code is used to show the system where the absolute zero point is, it is usually followed by a
X, Y and Z coordinate which is measured beforehand. If no X, Y value is input, the controller accepts
the systems current position as absolute zero. It is important that the G92 code is read while the
system is running, to ensure the system knows where the start point is. Every time the reset key is
pressed, it clears the G92 value from the system memory.
Format: G92 Xn Yn
9.10.9. G90 – absolute commands
The G90 code means that you are working from an absolute datum/zero point, every position or
movement is a measurement from the datum. The G90 code must be used at the start of a program,
the code remains active until changed.
Format: G90
9.10.10. G91 – incremental commands
The G91 code means that you are working from the current position, inputting the movement
X20, the system moves 20mm from the current position in a positive (+) direction. Each position is
measured from the last one, the incremental distance moves irrespective of the current position. The
G91 code must be used at the start of a program.
Format: G91
9.10.11. G20 – imperial mode
The G20 code is associated with Imperial (Inch) dimensional program input to the controller. The
G20 code must be used at the start of a program.
9.10.12. G21 – metric mode