MIL-M-80269
A means shall be provided to input new compen-
when slide reversal occurs.
sation values when required.
3.4.10.25 Axis calibration. Error compensation shall be provided to cor-
rect repeatable errors determined to exist due to leadscrew and feedback
device inaccuracies. A means shall be provided to input new error compensa-
tion values when required.
Unless otherwise specified (see 6.2.1),
3.4.10.26 Additional features.
the following additional numerical control features shall be provided:
a.
Four quandrant programming.
Incremental and continuous jog for each axis.
b.
Leading zero suppression or decimal point programming.
c.
d.
Inches Per Minute (ipm)/Millimeters Per Minute (mmpm),
programming in all modes of operation.
Tape edit keylock.
e.
Operator control panel.
3.4.10.27
Unless otherwise specified (see
6.2.1), the control unit shall have a control panel which provides at least
Emergency Stop; Cycle Start; Optional
the following control functions:
Stop; Mode Selection; Feed Hold; Feedrate Override; Spindle Speed Override;
Jog; Jog Direction; and End-of-Block (EOB) Stop.
3.4.10.27.1 Pendant control. When specified (see 6.2.1), a pendant con-
The pendant
trol shall be furnished in lieu of an operator control panel.
control shall be connected to the machine to enable the operator to control
Unless otherwise
machine functions while in a close observation position.
specified (see 6.2.1), the pendant control shall be capable of the same fun-
ctions as stated for the operator control panel in paragraph 3.4.10.27.
The control unit shall have a reference zero
3.4.10.28 Reference zero.
to move each axis to a reference limit switch to establish synchronization
and reset all registers to zero.
3.4.10.29 Set zero. The control unit shall have a "set zero" feature to
permit the specified axis register to be reset to zero establishing present
axis location as zero.
3.4.10.30 Program tryout.
The control shall have a program tape tryout
feature to permit new part programs to be read through the control without
machine motions.
3.4.10.31 Operational software.
Operational software shall be resident
in the control and shall contain all logic necessary to effectively operate
the machine tool.
The software shall provide for meaningful diagnostics
relating to the utilization of the controls, machine tool, part program, and
operator's actions.
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