S/W Stroke End Axis Exists; Chuck/Tailstock Stroke End Ax; Ref Point Return No. Invalid; Illegal Op In Mid Pt Sg Block - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
1 Operation Errors (M)
M01

S/W stroke end axis exists

Details
The stored stroke limit I, II, IIB or IB function has activated.
Remedy
Move the machine manually.
Correct any setting error of the parameters for the stored stroke limit.
M01

Chuck/tailstock stroke end ax

Details
The chuck/tail-stock barrier function turned ON, and an axis entered the stroke end state.
Remedy
Reset the alarm with reset, and move the machine in the reverse direction.
M01

Ref point return No. invalid

Details
2nd reference position return was performed before 1st reference position return has been completed.
Remedy
Execute 1st reference position return.
M01

Illegal op in mid pt sg block

Details
The operation mode was changed to MDI during single block stop at the middle point of G28/G29/G30.
Remedy
Change the operation mode.
Reset to clear the alarm.
M01 Sensor signal illegal ON
Details
The sensor signal was already ON when the tool measurement mode (TLM) signal was validated.
The sensor signal turned ON when there was no axis movement after the tool measurement mode (TLM) signal
was validated.
The sensor signal turned ON at a position within 100 μm from the final entry start position.
Remedy
Turn the tool measurement mode signal input OFF, and move the axis in a safe direction.
Disabling the sensor signal also clears the operation alarm.
(Note) When the "tool length measurement 1" signal is disabled, the axis can be moved in either direction. Pay
attention to the movement direction.
M01 Ref point retract invalid
Details
Reference position retract was performed while the coordinates had not been established.
Remedy
Execute reference position return.
M01 Tool ofs invld after R-pnt
Details
Reference position return had been performed during the tool retract and return, which invalidated the tool com-
pensation 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.
IB-1501279-H 6
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