Mitsubishi Electric M700V Series Programming Manual page 576

Appendix 1. Program Error
Error No.
P 70 Arc end point deviation large
• 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.
P 71 Arc center error
• The arc center is not sought during
R-specified circular interpolation.
• The curvature center of the involute curve
cannot be obtained.
P 72 No spec: Herical cutting
A helical command has been issued though it
is not included in the specifications.
P 73 No spec: Spiral cutting
A spiral command was issued despite the fact
that such a command does not exist in the
specifications.
P 74 Can't calculate 3DIM arc
The end block was not specified during
3-dimension circular interpolation
supplementary modal, and therefore it is not
possible to calculate the 3-dimension circular
interpolation.
Furthermore, it not possible to calculate the
3-dimension circular interpolation due to an
interruption during 3-dimension circular
interpolation supplementary modal.
P 75 3DIM arc illegal
An unusable G code was issued during
3-dimension circular interpolation modal.
Or, a 3-dimension circular interpolation
command was issued during a modal for
which a 3-dimension circular interpolation
command cannot be issued.
P 76 No spec: 3DIM arc interpolat
G02.4/G03.4 was commanded even though
there is no 3-dimension circular interpolation
specification.
P80 No spec: Hypoth ax interpolat
Hypothetical axis interpolation (G07) was
commanded even though there is no
hypothetical axis interpolation specification.
Details
564
Remedy
• 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.
• Check the scaling valid axis.
• 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.
• 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.
• The G02.1 and G03.1 commands are issued
for circular interpolation.
• Check the spiral specifications.
• Reconsider the program.
• Reconsider the program.
• Check the specifications.
• Check the specifications.