![]() Punctuation marks used to distinguish CNC program commands from macro statements.ĬAN key: The CAN key is located on the MDI keypad that backspaces the cursor to remove the last character entered. A block delete authorizes the operator to run two versions of the identical program.īrackets. #CNC SCREEN DISPLAY FUNCTION SERIES#Zero return key: Also known as the home key, zero return automatically moves the spindle to the machine zero position.Īuto mode: Auto mode is the mode that enables an operator to contact and execute a part program stored in the machine.ĪUX/Graph: AUX/Graph is a function key located on the MDI keypad (A20B) that demonstrates the graphics screen.Īxis/direction keys: Axis/direction keys are located in the area of the machine control that enables an operator to select a specific axis.īLOCK DELET key: BLOCK DELET key is a machine control that delivers the option of leaving out a predetermined series of program blocks. The tool limit switch detects overtravel. Tool limit switch: The component that prevents a tool from exceeding the set direction limit on an axis. #CNC SCREEN DISPLAY FUNCTION MANUAL#TEACH key: A key that changes the operation mode of a CNC machine to allow tool positions obtained by manual operation to be stored in memory. The spindle keys include CW (clockwise) and CCW (counter-clockwise), STOP, and JOG. Spindle keys: The area of the CNC machine control that allows the operator to manually control the rotation of the spindle in a clockwise or counter-clockwise direction. Spindle jog key: A key located on the machine panel that rotates the spindle incrementally in either a clockwise or counterclockwise direction. SP: A key that allows an operator to enter a space when manually entering data. The function of each soft key is visible on the display screen between brackets. Soft keys: Keys located directly below the display screen that have different purposes depending on which function key has been chosen. The single block function runs the program one block at a time to prove out the program. SINGL BLOCK key: A key that activates the single block feature on the GE FANUC 0-C control. Shift key: A key located on the MDI keypad that allows an operator to access letters and special characters found on the address keys. Reset key: A key located on the MDI keypad that stops all machine motion and places the program cursor at the top of the current program. Reference position: A fixed position on a machine tool to which the tool can easily be moved by the reference position return function. Rapid traverse motion merely requires an endpoint for the movement. Rapid traverse: The movement of machine components at the fastest possible rate of travel. The AUTO, EDIT, and MDI keys that comprise the program source keys are distinct machine modes. Program source keys: The group of keys on the operator panel that control how part programs are used. The program protect switch prevents accidental or intentional deletion of programs in memory. ![]() ![]() Program protect switch: A switch located on the machine control panel that allows the operator to secure current program information. Program edit keys: Keys located on the MDI keypad that allow an operator to alter, insert, or delete data from stored memory. PRGRM: A function key located on the MDI keypad that displays the program screen and blocks of the current part program. Power on: The green button on a CNC control panel that provides power to the control. Power off: The red button on a CNC control panel that shuts off power to the control. ![]() POS: A function key located on the MDI keypad that displays the position screen that shows axis locations. Part program: A series of instructions used by a CNC machine to perform the necessary sequence of operations to machine a specific workpiece. ![]() Curved brackets used to separate program text information from CNC program commands. ![]()
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