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CAMs
allow users freedom to create their own motion profile dedicated
to the application requirements. All Motion Coordinators have
very powerful and flexible CAM commands which make possible
applications that can be impossible to construct without these
facilities. Motion Coordinators have a memory TABLE in which
CAM profile shapes may be constructed. The size of the TABLE
varies between 16000 points on the MC302X and 250,000 points on
the MC224. The CAM profile shapes can be constructed offline,
or built by the Motion Coordinator itself, or imported from
programs such as Excel. Trio provides a very useful CAMGEN utility
for helping with the construction of CAM profile shapes.
Motion
Coordinators provide two fundamental types of motion command
for using the CAM profile shapes. These allow a CAM to be
executed over a flexible timebase or as motion linked to another
machine motion. The CAM shapes can be used in a very flexible
way, for example they can be stretched as they are used, and
the controller can choose to use just a portion of a larger
shape. There are controls too to allow flexible repeating
of CAM shapes. These controls allow profiles to be executed
backwards and forwards to allow the Motion Coordinator to
simulate mechanisms which can be run in either direction.
There are also controls to allow the starting of CAM’s
on a registration event or when a machine position is reached.
For complex applications, multiple CAM shapes can be merged
together in a seamless way. |
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- CAM profiles can be entered with between 2 and 250,000 points (MC224)
- Any length of profile can be run over any time period or any link distance
- Generic profiles can be “stretched” in both dimensions during program execution
- Multiple profiles can be created up to memory limit
- Axes can use part of a larger profile
- CAM profiles can be seamlessly linked
- Profiles can be repeated endlessly, backwards and forwards
- Cycling CAM profiles can be commenced part way through
- Patterns of scaling factors can be programmed for cyclic machines
- CAMGEN Windows tool handles splines and unevenly spaced points
- Synchronised start on absolute position or registration event
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