Mitsubishi C70 User Manual

IV - 162
Appendix 7. Explanation of Alarms
Appendix 7.12 Program Errors (P)
P60 OVER CMP. LENG.
Details
The commanded movement distance is excessive (over 2
31
).
Remedy
- Correct the command range for the axis address.
P62 F-CMD. NOTHING
Details
- No feed rate command has been issued.
- There is no F command in the cylindrical interpolation or polar coordinate interpolation
immediately after the G95 mode is commanded.
Remedy
- The default movement modal command at power ON is G01. This causes the machine to
move without a G01 command if a movement command is issued in the program, and an
alarm results. Use an F command to specify the feed rate.
- Specify F with a thread lead command.
P65 No G05P3 SPEC
Details
Remedy
- Check whether the specifications are provided for the high-speed mode III.
P70 ARC ERROR
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
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 HELICAL SPEC
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.

Mitsubishi C70 Specifications

General

Brand	Mitsubishi
Model	C70
Category	Control Unit
Language	English