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MITSUBISHI CNC
Appendix 6 Explanation of Alarms
M01 Tool ofs invld after R-pnt 0021
Details
Reference position return had been performed during the tool retract and return, which invalidated the
tool compensation amount after the reference position return.
Remedy
- The error is cleared if the operation mode is changed to other than reference position return before
the axis performs reference position return.
- The error is cleared when the tool return is completed.
- The error is cleared if reset 1 is input or the emergency stop button is pushed.
M01 R-pnt ret invld at abs pos alm 0024
Details
A reference position return signal was enabled during an absolute position detection alarm.
Remedy
- Reset the absolute position detection alarm, and then perform the reference position return.
M01 R-pnt ret invld at zero pt ini 0025
Details
A reference position return signal was input during zero point initialization of the absolute position
detection system.
Remedy
- Complete the zero point initialization, and then perform reference position return.
M01 High-accuracy skip disabled 0028
Details
The drive unit's hardware or software does not conform to the high-accuracy skip.
Remedy
- The software or hardware does not conform to the function. Contact service center.
M01 Hi-ac skip coord retrieval err 0029
Details
Failed to retrieve the skip coordinate value from the drive unit.
Remedy
- Check the wiring.
- Check the parameters.
M01 Now skip on 0030
Details
The "skip input" signal remains enabled when the operation has shifted from skip retract to
measurement.
Remedy
- Increase the skip retract amount.
M01 No skip 0031
Details
Even though the 1st skip was to the correct position, the 2nd skip could not be found.
Remedy
- Check whether the measurement target has moved.
M01 Rtn dir err in manual measure 0033
Details
Return direction in manual measurement is the opposite of the parameter setting.
Remedy
- Check and correct the "#2169 Man meas rtrn dir (Return direction in manual measurement)" setting.
- Move the axis manually to a safe position in the direction set by "#2169 Man meas rtrn dir (Return
direction in manual measurement)", then reset.
IV - 34
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