
6.INTERPOLATION FUNCTION B-63943EN-1/02
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6.1 POSITIONING
Overview
The G00 command moves a tool to the position in the workpiece
system specified with an absolute or an incremental command at a
rapid traverse rate. In the absolute command, coordinate value of the
end point is programmed. In the incremental command the distance
the tool moves is programmed.
The tool path is determined by selecting one of the following with
parameter LRP (No. 1401#1):
- Linear interpolation type positioning
The tool is positioned using a straight path and a speed that is not
higher than the rapid traverse of each axis but that assures the
shortest positioning time. By changing the acceleration/
deceleration type from the constant acceleration/deceleration
(inclination) type to the constant time (time constant) type with
parameterPRT (No. 1603#4), the tool can be moved along a
specified path.
- Non-linear interpolation type positioning
Positioning is performed with each axis independently at the
rapid traverse rate. Generally, the tool path is not a straight line.
The rapid traverse rate in the G00 command is set to the parameter
No.1420 for each axis independently by the machine tool builder. In
the positioning mode actuated by G00, the tool is accelerated to a
predetermined speed at the start of a block and is decelerated at the
end of a block. Execution proceeds to the next block after confirming
the in-position.
Parameter
#7 #6 #5 #4 #3 #2 #1 #0
1401 LRP
[Input type] Parameter input
[Data type] Bit path
# 1 LRP Positioning (G00)
0: Positioning is performed with non-linear type positioning so that
the tool moves along each axis independently at rapid traverse.
1: Positioning is performed with linear interpolation so that the tool
moves in a straight line.
When using three-dimensional coordinate conversion, set this
parameter to 1.