
APPENDIX
B–63084EN/02
G. ALARM LIST
735
Number ContentsMessage
752 FIRST SPINDLE MODE CHANGE
FAULT
This alarm is generated if the system does not properly terminate a
mode change. The modes include the Cs contouring, spindle position-
ing, rigid tapping, and spindle control modes. The alarm is activated if
the spindle control unit does not respond correctly to the mode change
command issued by the NC.
754 SPINDLE–1 ABNORMAL TORQUE
ALM
Abnormal first spindle motor load has been detected.
762 SECOND SPINDLE MODE
CHANGE FAULT
Refer to alarm No. 752. (For 2nd axis)
764 SPINDLE–2 ABNORMAL TORQUE
ALM
Same as alarm No. 754 (for the second spindle)
772 SPINDLE–3 MODE CHANGE
ERROR
Same as alarm No. 752 (for the third spindle)
774 SPINDLE–3 ABNORMAL TORQUE
ALM
Same as alarm No. 754 (for the third spindle)
782 SPINDLE–4 MODE CHANGE
ERROR
Same as alarm number 752 (for the fourth spindle)
784 SPINDLE–4 ABNORMAL TORQUE
ALM
Same as alarm number 754 (for the fourth spindle)
The details of spindle alarm No. 750 are displayed in the diagnosis display
(No. 409) as shown below.
#7
409
#6 #5 #4 #3
SPE
#2
S2E
#1
S1E
#0
SHE
#3 (SPE) 0 : In the spindle serial control, the serial spindle parameters fulfill the
spindle unit startup conditions.
1 : In the spindle serial control, the serial spindle parameters do not fulfill
the spindle unit startup conditions.
#2 (S2E) 0 : The second spindle is normal during the spindle serial control startup.
1 : The second spindle was detected to have a fault during the spindle
serial control startup.
#1 (S1E) 0 : The first spindle is normal during the spindle serial control startup.
1 : The first spindle was detected to have a fault during the spindle axis
serial control startup.
#0 (SHE) 0 : The serial communications module in the CNC is normal.
1 : The serial communications module in the CNC was detected to have a
fault.
D The details of spindle
alarm No.750