LINK Systems Omni II Automatic Setups Module - Manual (Page 40)

October 16, 2008 Manual Version 1.1
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Mode Use the CHANGE MODE softkey to cycle the status from ON to MAN to
OFF and back to ON. ON means the module adjusts to the new shut
height associated with a job when that job is recalled from memory, but
only if the Slide Adjust OFF/ON selector switch is turned to the ON
position. MAN means the module can control the shut height but the shut
height can only be changed from the “Slide Adjust” screen or with the
Jog-Up and Jog-Down remote pushbuttons. A RECALLED job will NOT
change the shut height, although an operator can cause the system to
automatically adjust to a new shut height by turning the Slide Adjust
OFF/ON switch to the ON position, entering the desired shut height value
in the “Slide Setpoint” row, and pressing the AUTO ADJUST softkey.
OFF means the module will not automatically adjust the shut height, and
will ignore any errors from the system. Operators can always manually jog
the slide into position through the use of the JOG UP and JOG DOWN
softkeys. These keys appear when the Slide Adjust OFF/ON switch is in
the ON position regardless of whether ON, MAN, or OFF is configured.
This value should typically be set to ON.
Shut Height Units
All shutheight parameters and the shut height actual position can be
displayed and entered in inches or millimeters. Use the CHANGE UNIT
softkey to toggle this setting between inches and millimeters. Note that
values already entered will be converted to the new unit.
Upper Limit
This value is an electronic upper limit for the slide adjust system that acts
as a backup for the mechanical up limit switch. The automatic shut height
system will not adjust the shut height above this value, which should be
set just below where the mechanical up limit switch open up.
Lower Limit
This value is an electronic lower limit for the slide adjust system that acts
as a backup for the mechanical down limit switch. The automatic shut
height system will not adjust the shut height below this value, which
should be set just above where the mechanical down limit switch opens
up.
Tolerance
This value determines how far off the slide can be from the slide setpoint
and still be considered “In Position”. Recommended initial value is .004"
(.10mm). While the automatic slide adjust system will normally make its
initial adjustment to within .001" (.02mm) of the selected setpoint value,
the impact created by the stamping operation may cause the shut height to
change slightly as clearances in gears and threads of the slide adjustment
mechanism shift. If the design or condition of the press causes the shut
height to change by more than the tolerance (measured at the top of the
stroke) after stamping begins, the tolerance must be set to a higher value.
It may also be possible to set this value lower on some presses.
Pulse Distance
The automatic slide adjust is always accomplished by going above the
desired shut height setpoint value and descending to the setpoint value.
The pulse distance value must be set to cause the slide adjust system to