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6-6 Preset Moves & PLC Task
MN1901
6.2.4 Controlling preset moves
Additional options are available to control
the operation of preset moves.
Dwell Time can be used to set a delay
period between the triggering of a preset
move and its commencement.
If the Wait for Idle option is checked, the
preset move will not begin until the
previous one has been completed. If it is
not
checked, the new move will be started
immediately. To allow this, the profile of the
current move will be modified to smoothly
adjust to the new move’s profile.
The Learn Current Position button can be used to read the current position and assign it to the
Value / Position column for the currently selected preset. This function can only be used for
Absolute moves; if the preset type is not already set to Absolute, it will be set automatically.
The configuration and operation of preset moves can also be controlled by a Mint program, using
a range of keywords beginning with
PRESET...
. See the Mint help file for details.
6.2.5 Using presets with the CAN & Auxiliary I/O option
If the CAN & Auxiliary I/O option is fitted (Option B) the additional digital inputs allow up to 256
presets to be selected.
The Extended tab below the presets table displays the preset table for presets 16 to 255. The
Extended tab only appears if the CAN & Auxiliary I/O option is fitted.
Extended presets can only be used for Relative or Absolute moves, and they do not have
unique Slew speed, Acceleration or Deceleration parameters. The extended presets are
divided into groups of 16 presets (16-31, 32-47, 48-63 etc.), selected using the Group box.
Each
group
of presets has unique parameters, set using the Slew Speed, Acceleration and
Deceleration boxes.
In the Digital I/O tool, the number of inputs that may be selected in the Preset Inputs box also
increases to 8, to allow up to 256 presets to be selected.
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