System philosophy
HARDWARE REFERENCE MANUAL
14
Revision 5.0
2.2.2
CP control
Continuous Path control enables to control a specified path between the
start and end position of a movement for one or multiple axes. The TJ2-
MC__ supports the following operations:
•
Linear interpolation
•
Circular interpolation
•
CAM control.
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