3. Program Error
I - 65
Error No.
Details
Remedy
P 70
ARC ERROR
• There is an error in the arc start and end
points as well as in the arc center.
• The difference of the involute curve
through the start point and the end point is
large.
• When arc was commanded, one of the
two axes configuring the arc plane was a
scaling valid axis.
• Check the numerical values of the addresses
that specify the start and end points, arc
center as well as the radius in the program.
• Check the “+” and “-” directions of the
address numerical values.
P 71
ARC CENTER
• The arc center is not sought during
R-specified circular interpolation.
• The curvature center of the involute curve
cannot be obtained.
• Check the numerical values of the addresses
in the program.
• Check whether the start point or end point is
on the inner side of the base circle for
involute interpolation. When carrying out tool
radius compensation, check that the start
point and end point after compensation are
not on the inner side of the base circle for
involute interpolation.
• Check whether the start point and end point
are at an even distance from the center of the
base circle for involute interpolation.
P 72
NO HELICAL SPEC
A helical command has been issued
though it is not included in the
specifications.
• Check the helical specifications.
• An Axis 3 command was issued by the
circular interpolation command. If there is no
helical specification, the linear axis is moved
to the next block.
P 90
NO THREAD SPEC
A thread cutting command has been
issued though it is not included in the
specifications.
• Check the specifications.
P 93
SCREW PITCH ERR
The screw pitch has not been set
correctly when the thread cutting
command is issued.
• Issue the thread cutting command and then
set the screw pitch command properly.
P100
NO CYLIND SPEC
Cylindrical interpolation was commanded
when the cylindrical interpolation
specifications were not provided.
• Check the specifications.
P111
PLANE CHG (CR)
Plane selection commands (G17, G18,
and G19) were issued when a coordinate
rotation command (G68) was issued.
• Before issuing the plane selection
commands, issue G68 and then G69
(coordinate rotation cancel).
Summary of Contents for MELDAS 60 Series
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