Mitsubishi Electric M700VS Series Setup Manual page 595

MITSUBISHI CNC
Appendix 2 Explanation of Alarms
P65 No spec: High speed mode 3
Details
Remedy
- Check whether the specifications are provided for the high-speed mode III.
P70 Arc end point deviation large
Details
- 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.
Remedy
- Correct the numerical values of the addresses that specify the start and end points, arc center as
well as the radius in the program.
- Correct the "+" and "-" directions of the address numerical values.
- Check for the scaling valid axis.
P71 Arc center error
Details
- An arc center cannot be obtained in R-specified circular interpolation.
- A curvature center of the involute curve cannot be obtained.
Remedy
- Correct the numerical values of the addresses in the program.
- Correct the start and end points if they are inside of the base circle for involute interpolation. When
carrying out tool radius compensation, make sure that the start and end points after compensation
will not be inside of the base circle for involute interpolation.
- Correct the start and end points if they are at an even distance from the center of the base circle for
involute interpolation.
P72 No spec: Herical cutting
Details
A helical command has been issued though it is out of specifications.
Remedy
- Check whether the specifications are provided for the helical cutting.
- An Axis 3 command has been issued by the circular interpolation command. If there is no helical
specification, move the linear axis to the next block.
P73 No spec: Spiral cutting
Details
A spiral command was issued though it is out of specifications.
Remedy
- Issue the G02.1 and G03.1 commands for circular interpolation.
- Check whether the specifications are provided for the spiral cutting.
P74 Can't calculate 3DIM arc
Details
The 3-dimension circular cannot be obtained because the end block was not specified during 3-
dimension circular interpolation supplementary modal.
The 3-dimension circular cannot be obtained due to an interruption during 3-dimension circular
interpolation supplementary modal.
Remedy
- Correct the program.
P75 3DIM arc illegal
Details
An illegal G code was issued during 3-dimension circular interpolation modal.
Otherwise, 3-dimension circular interpolation command was issued during a modal for which a 3-
dimension circular interpolation command cannot be issued.
Remedy
- Correct the program.
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