MIL-G-80267
the following control functions:
Emergency Stop; Cycle Start; Optional
Stop; Mode Selection; Feed Hold; Feedrate Override; Spindle Speed Override;
and EOB Stop.
3.3.14.26.1 Pendant control.
When specified (see 6.2.1), a pendant or
moveable stanchion control shall be furnished in lieu of an operator con-
trol panel. The pendant control shall be constructed to enable the opera-
tor to control machine functions while in close observation position.
Unless otherwise specified (see 6.2.1), the pendant control shall be capa-
ble of the same functions as stated for the operator control panel in para-
graph 3.3.14.26.
3.3.14.27 Reference-zero.
The control unit shall have a reference zero
to move-each axis to a reference point to establish synchronization and
reset all registers to zero.
3.3.14.28 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.
3.3.14.29 Program tryout. The control shall have a program tryout fea-
ture to permit new part programs to be tested through the control without
machine motions.
3.3.14.30 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 control, machine tool, part program, and
On style B machines, all necessary executive diagno-
operator's actions.
stic and interface program routines for those controls having volatile
memory shall be provided in the form of one inch, eight channel punched
tape complying with EIA-RS-227 or other input form as appropriate for the
input media specified (see 6.2.1).
3.3.14.31 On-line system diagnostics. The MCU on style B machines shall
perform a constant monitoring function of various activities and conditions
of the control and machine. The diagnostic system shall communicate appro-
priate fault messages to the operator by means of a universal display.
Unless otherwise specified (see 6.2.1), the on-line diagnostic capability
shall determine the following fault conditions and provide appropriate
error messages on the display:
-
Axis feedback loop fail
-
Illegal program entry
-
Axis travel limits exceeded
-
Axis servo motor failure
-
Reader read error (on style B machines)
-
Control console overheat
-
Axis servo drive on/off
-
Program error
-
Feed limit
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