| OBJECT
PROGRAMME | The
coded
output
of
an
assembler
or
compiler.
|
| OCTAL | A
characteristic
of
a
system
in
which
there
are
eight
elements,
such
as
a
numbering
system
with
a
radix
of
eight
|
| OFF CENTER | Not centered; offset, eccentric, or
inaccurate.
|
| OFF-LINE | Operating
software
or
hardware
not
under
the
direct
control
of
a
central
processor,
or
operations
performed
while
a
computer
is
not
monitoring
or
controlling
processes
or
equipment
|
| OFFSET | The
steady
state
deviation
of
the
controlled
variable
from
a
fixed
setpoint
|
| OFFSET | Deviation from a true tool path or coordinate system origin to compensate for
tool size. Synonymous with “compensation”.
|
| OFFSET MEMORY | CNC memory used for storing tool offset values, workpiece origin offset values,
and external workpiece origin offset values.
|
| OFFSET MODE | CNC state in which tool path offset is allowed.
|
| OFFSET PLANE | Plane in which tool path offset is active.
|
| OFFSET SPACE | Space in which tool path offset is allowed.
|
| OFFSET VECTOR | Vector whose direction and size are the same as those of a specified tool
offset. As the tool advances, the vector direction is rewritten for individual
blocks according to calculations within the CNC so that it is always held normal
to the tool path.
|
| OFFSETS | Offsets are used by a CNC controller to tell a machine where a part is.
|
| OIL HARDENING | The process of quenching in oil when
heat treating alloy steel to bring out certain qualities.
|
| OILSTONES | Molded abrasives in various shapes used
to hand-sharpen cutting tools.
|
| ON-LINE | A
condition
in
which
equipment
or
programmes
are
under
direct
control
of
a
central
processor
|
| ONE | One
of
the
two
symbols
normally
employed
in
binary
arithmetic
and
logic,
indicating
binary
one
and
the
true
condition,
respectively
|
| ONE-DIGIT F CODE FEED | Cutting feed in which the tool is fed at the feedrate set in the CNC, and which
corresponds to the digit (from 1 to 9) immediately after the F address.
|
| ONE-SHOT G CODE | G code that remains valid only within the block in which it is listed ( such as
G31).
|
| OOMHJTER
AIDED
MANUFACTURE
(CAM) | A
process
which
uses
a
computer
in
the
management,
control
or
operation
of
a
manufacturing
facility
|
| OPEN
LOOP
SYSTEM | A
control
system
that
has
no
means
of
comparing
the
output
with
the
input
for
control
purposes
(no
feedback).
|
| OPEN
LOOP | A
signal
path
without
feedback
|
| OPERATING
SYSTEM | Software
which
controls
the
execution
of
computer
programmes
and
the
movement
of
information
between
peripheral
devices.
|
| OPERATING MONITOR DISPLAY | Display of the servo axis load meter, spindle load meter, and speed meter.
|
| OPERATION IN THE TAPE MODE | Automatic operation based on a program loaded into the CNC via an interface.
In this operation, the program to be loaded can be specified, and the
CNC can be operated based on the specified execution sequence and specified
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 display
prompts to the operator.
|
| OPTIMIZATION | A
process
whose
object
is
to
make
one
or
more
variables,
assume
in
the
best
possible
manner,
the
value
best
suited
to
the
operation
in
hand
dependent
on
the
values
of
certain
other
variables
which
may
be
either
predetermined
or
sensed
during
the
operation
|
| OPTIMIZE | To
establish
control
parameters
which
maximize
or
minimize
the
value
of
performance
|
| OPTIONAL
STOP | A
Miscellaneous
Function
command
similar
to Program
Stop except
that
the
control
ignores
the
command
unless
the
operator
has
previously pushed
a
button
to
validate
the
command (M01).
|
| 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.
|
| OR
GATE | A
device
which
implements
the
OR
function
|
| ORIENTATION
(ROBOTS) | The
angular
position
of
the
wrist
axes.
|
| OUTPUT
IMPEDANCE | The
impedance
presented
by
a
device
to
the
load
|
| OUTPUT
SIGNAL | A
signal
delivered
by
a
device,
element,
or
system.
|
| OUTPUT | Dependent
variable
signal
produced
by
a
transmitter,
control
unit
or
other
device
|
| 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 commands
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 coordinate
system.
|
| OVERARM | The support for the end of a milling cutter
which is on the opposite side of the cutter from the
spindle and column
|
| OVERLAY | A
technique
of
repeatedly
using
the
same
area
of
computer
store
when
actioning
different
stages
of
a
problem
|
| 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.
|
| OVERSHOOT | The
amount
that
a
controlled
variable
exceeds
its
desired
value
after
a
change
of
input
|
| OVERTRAVEL | Decelerating and stopping a tool if it goes beyond a machine stroke end, and
displaying an alarm.
|