NOVA electronics Inc.
MCX514 -
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1. OUTLINE
1.1
The Main Features of Functions
MCX514 is a 4-axis motion control IC that has improved greatly in functions of previous IC such as MCX314As / MCX314AL.
As the interpolation functions, it provides the existing linear interpolation, circular interpolation and bit pattern interpolation, in
addition, it has the helical interpolation function that works to move Z-axis in a vertical direction, synchronizing with the circular
interpolation on the XY plane.
MCX500 series motion control IC has no multiple of speed (speed range-free). This enables us to freely set and vary the drive
speed linearly from 1 pps up to 8 Mpps in increments of 1pps without changing the range.
MCX514 can be connected to a host CPU with either 8-bit or 16-bit bus, and I
2
C serial interface bus. It can also be connected to a
CPU without a parallel bus.
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Helical Interpolation
MCX514 is capable of performing helical interpolation in addition to the existing linear interpolation and circular interpolation.
Helical interpolation operates to move another axis in synchronization with the circular interpolation in the XY plane (orthogonal
coordinates). The figure shown below is an example to move Z-axis in the + direction, corresponding to the circular interpolation
on the XY plane. The figure 1.1-1 a. illustrates the helical interpolation under one rotation, and the figure 1.1-1 b. illustrates the
helical interpolation in a plurality of rotations. MCX514 can perform both interpolation.
a.
Under One Rotation
b.
One Rotation or More
Fig. 1.1-1 Example of Helical interpolation
As an application of helical interpolation, it is possible to operate normal control that rotates another axis by a constant angle
corresponding to the circular interpolation on the XY plane. The figure 1.1-2 shows an example of the operation that an object
such as a camera or nozzle on a pedestal is directed to the center of circular interpolation, mounting a rotating axis in the pedestal
that performs circular interpolation on the XY plane.
Fig. 1.1-2 Example of Normal Control of Z axis in XY axes Circular Interpolation
X
Y
Z
Z
Z
Z
Z
X
Y
Z
Start Point
Finish Point
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X
Y
Start Point
Finish Point
