Mitsubishi Electric C70, Setup Manual

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Appendix 2 Explanation of Alarms
MITSUBISHI CNC
478
Appendix 2.7 Absolute Position Detection System Alarms (Z7*)
Axis names are expressed with a letter in the following manner:
- NC axis: axis name defined by the parameter
- Spindle: "S" = the 1st spindle, "T" = the 2nd spindle, "M" = the 3rd spindle, "N" = the 4th spindle, "P" = the 5th spindle,
"Q" = the 6th spindle, "R" = the 7th spindle
- PLC axis: "1" = the 1st PLC axis, "2" = the 2nd PLC axis, "3" = the 3rd PLC axis, and so on.
(Note 1) "Z70" alarms are displayed as "Z70 Abs data error" with the error number. Error number is the four digit number
displayed after error name (start from 0001). "Z70" alarms are listed in ascending order in this manual.
(Note 2) "Z71" alarms are displayed as "Z71 Abs encoder failure" with the error number. Error number is the four digit
number displayed after error name (start from 0001). "Z71" alarms are listed in ascending order in this manual.
Z70 Abs posn base set incomplete 0001 (Axis name)
Details
Zero point initialization is incomplete. Otherwise, the spindle was removed.
Remedy
Complete zero point initialization.
(Note) To release alarm "Z70 Abs data error", enter the parameter data output when establishing the
absolute position and turn ON the power again. For the rotary axis, however, the alarm cannot
be released by entering the parameter data.
- Zero point initialization: Required
Z70 Absolute position lost 0002 (Axis name)
Details
The absolute position basic point data saved in the NC has been damaged.
Remedy
Set the parameters. If the basic point data is not restored by setting the parameters, perform zero point
initialization.
(Note) To release alarm "Z70 Abs data error", enter the parameter data output when establishing the
absolute position and turn ON the power again. For the rotary axis, however, the alarm cannot
be released by entering the parameter data.
- Zero point initialization: (Required)
Z70 Abs posn param changed 0003 (Axis name)
Details
Any of the parameters for absolute position detection has been changed.
#1003 iunit
#1016 iout
#1017 rot
#1018 ccw
#1040 M_inch
#2049 type
Remedy
Correct the parameter settings. Then turn the power ON again and perform zero point initialization.
(Note) To release alarm "Z70 Abs data error", enter the parameter data output when establishing the
absolute position and turn ON the power again. For the rotary axis, however, the alarm cannot
be released by entering the parameter data.
- Zero point initialization: Required
Z70 Abs posn initial set illegal 0004 (Axis name)
Details
The zero point initialization point is not at the grid position.
Remedy
Perform the zero point initialization again.
(Note) To release alarm "Z70 Abs data error", enter the parameter data output when establishing the
absolute position and turn ON the power again. For the rotary axis, however, the alarm cannot
be released by entering the parameter data.
- Zero point initialization: Required