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News

Motion controller offers superimposed motions in real time

Elmo Motion Control : 24 October, 2013  (New Product)
Full delta robot support, enhanced error correction support and superimposed motion are now an integrated part of the Gold Maestro Version 1.1.2.0 from Elmo Motion Control, following the latest firmware release. This range of powerful new features make complex motion tasks easier to program and faster to implement.
Motion controller offers superimposed motions in real time
Full delta robot support includes Linear, Circle, Polynomial, Table Spline and Table PVT. The user simply defines the delta robot part lengths, and the machine is ready to run.
 
Enhanced error correction support
 
Enhanced error correction support is another new feature of the updated Gold Maestro Motion Controller, enabling position correction of both single and multi-axis positions in real time, based on correction data. Superimposed management of error correction is fully supported. In addition, the feature supports 1D, 2D and 3D error correction.
 
The G-MAS can correct mechanism axis positions based on preset data that is accessed using user-defined correction table. Such corrections are possible for both single and multi-axis applications. Both 2D and 3D corrections are supported:
 
2D error correction provides a correction point (x,y) on the basis of a standard two-dimensional grid, defined as a function of any two axes positions. The correction point handles thee error for a specific axis.
3D error correction is similar to 2D error correction, but enables use of multiple, layered two-dimensional grids. As with 2D mode, the third axis correction point may be defined for any of the axes.
 
G-MAS error correction supports up to 6 two-dimensional tables and up to 100,000 tabulated correction positions. Correction points are pre-defined by a user during general setup.
 
Design Features
  • Simple implementation using correction tables, stored in G-MAS flash memory for quick loading/saving
  • Supports up to 6 two-dimensional tables and up to 100,000 tabulated correction positions
  • Uses linear interpolation between each two subsequent correction positions
  • Supports decimal or binary grid gap
  • Each axis can be corrected as a function of its own position and an additional axis position, or as a function of two additional positions
  • Superimposed Error Correction Support
 
The Gold Maestro enables Flying Vision with superimposed motions - adding another profiler on top of an on-going motion in real time), significantly improving machine throughput. It enables all types of 'on-the-fly' position updates without reducing process speeds, accuracy or stability. Flying Vision is used mainly when the exact end position of a motion is unknown and needs to change during the motion, without crossing the initial location. With this functionality, the user can change the target position without changing the current function block. Elmo´s Flying Vision enables increased accuracy and motion stability, while reducing process time, with potentially improved speed of 30% or more. This is an optimal solution for any process that requires target end position corrections while maintaining high speeds, maximum stability and smoothness, including pick-and-place machines, PCB drilling, flying probes and cut-to-length processes.
 
With fast reference to drive, the
Gold Maestro now supports a fast
referencing capability to enable the
G-MAS to send an additional position
reference to a drive. The position reference
can specify the actual or target positions
for axes in the system, as well as a
position along a group axis path. This can
be used for numerous purposes, including
additional auxiliary profiler to drive, advanced
gain scheduling, and touch probe.
 
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