System philosophy
HARDWARE REFERENCE MANUAL
21
Revi
si
on 3.0
Linear interpolation
fig. 7
In applications it can be required for a set of motors to perform a
move operation from one position to another in a straight line.
Linearly interpolated moves can take place among several axes.
The commands
MOVE
and
MOVEABS
are also used for the linear
interpolation. In this case the commands will have multiple
arguments to specify the relative or absolute move for each axis.
Consider the three axis move in a 3-dimensional plane in the figure.
It corresponds to the
MOVE(50,50,50)
command. The speed profile
of the motion along the path is given in the diagram. The three
parameters
SPEED
,
ACCEL
and
DECEL
that determine the multi
axis movement are taken from the corresponding parameters of the
base axis. The
MOVE
command computes the various
components of speed demand per axis.
A is the time axis, B is the speed axis.
A
B
3
1
2
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