3. PROGRAM ERROR
I - 62
Error No. Details Remedy
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).
P112 PLANE CHG (CC)
• A plane selection command (G17‚ G18‚
G19) has been issued when the tool
radius compensation command (G41‚
G42) or nose R compensation
command (G41‚ G42‚ G46) is issued.
• The plane selection command was
issued when nose R compensation is
completed‚ there is no axial movement
command after the G40 command‚ and
the compensation has not been
canceled.
• Issue the plane selection command after the
tool radius compensation command or nose
R compensation command has been
canceled (issue axial movement command
after the G40 cancel command).
P113 ILLEGAL PLANE
The arc command axis is not on the
selected plane.
• Issue arc command on the correctly selected
plane.
