Operation in the tape mode Automatic operation based on a program loaded into the CNC via an inter-
face. In this operation, the program to be loaded can be specified, and the
CNC can be operated based on the specified execution sequence and speci-
fied execution count.
Operation mode Mode in which automatic or manual operation is possible.
Operator message display Screen used to inform the operator of the current machine status, and to dis-
play prompts to the operator.
Optional block skip Adding a “/”, followed by a number, to the beginning of a block so that that
block can be selectively skipped.
Optional stop Miscellaneous functions for causing a program to pause when the “Optional
Stop” switch on the machine operator’s panel is set to the ON position.
Output ahead of T–code function Searching fhrough a machining program for T commands in the execution
sequence, starting from the beginning, and outputting the detected T com-
mands before executing the program. This function enables the machine to
prepare for tool exchange.
Overall position display Simultaneous display of the current position and remaining distance in the
workpiece coordinate system, relative coordinate system, and machine coor-
Override cancel Clamping a feedrate override value to 100%.
Override playback Storing a cutting feedrate override value and spindle speed override value
during the execution of a program. Restoring and using the override values
when the program is next executed.
Overtravel Decelerating and stopping a tool if it goes beyond a machine stroke end, and
displaying an alarm.
P/S alarm Alarm related to programs and manipulation.
Parallel axis Controlled axis (such as the U–, V–, or W–axis) parallel to the X–, Y–, or
Parallel operation Operation mode in which a move command for a certain program axis is used
to simultaneously feed two or more controlled axes (parallel axes) having the
same name. A parallel axis is represented using a combination of the same
axis name address as for the corresponding basic axis and a number (such
as X1, X2, and so on).
Parameter Data (such as feedrate, coordinate system, spindle, and tool parameters) set
in the CNC to define its specifications.
Part program Sequence of instructions created using a language and format that support
the direct manipulation of the CNC. Alternatively, a sequence of instructions
prepared as input data to be processed during automatic programming.
Part program storage length Size of a program that can be stored in CNC memory as an equivalent paper
tape length (number of characters x 2.54 mm).
Password function Disabling the editing of specific programs (such as those identified by pro-
gram number 09000 to 09999).
Pattern data input Simplified programming in which menus are used to set numeric data (pattern
date), based on drawings, in the CNC.
Pattern function Punching at two or more positions arranged in a known layout, using a single