
APPENDIX
B–64124EN/01
G. ALARM LIST
875
No. DescriptionFaulty location and remedy
SPM
indica-
tion(*1)
Message
9084 SPN_n_ : SPNDL SEN-
SOR DISCON-
NECTED
84 1 Replace the feedback cable.
2 Check the shield processing.
3 Check and correct the connection.
4 Check and correct the parameter.
5 Adjust the sensor.
The spindle sensor feedback signal
is not present.
9085 SPN_n_ : 1–ROT SPNDL
SENSOR ER-
ROR
85 1 Check and correct the parameter.
2 Replace the feedback cable.
3 Adjust the sensor.
The one–rotation signal of the
spindle sensor cannot be correctly
detected.
9086 SPN_n_ : NO 1–ROT
SPNDL SEN-
SOR ERROR
86 1 Replace the feedback cable.
2 Adjust the sensor.
The one–rotation signal of the
spindle sensor cannot be correctly
detected.
9087 SPN_n_ : SPNDL SEN-
SOR SIGNAL
ERROR
87 The one–rotation signal of the
spindle sensor is not generated.
An irregularity was detected in a
spindle sensor feedback signal.
9088 SPN_n_ : COOLING RA-
DIFAN FAIL-
URE
88 Replace the SPM external cooling
fan.
The external cooling fan stopped.
9111 b1 Replace the SVPM control printed
circuit board.
The voltage of the converter control
power supply is low.
9120 C0 1 Replace the communication
cables between the CNC and
SPM.
2 Replace the SPM control printed
circuit board.
3 Replace the spindle interface
printed circuit board in the CNC.
Communication data alarm
9121 C1 1 Replace the communication
cables between the CNC and
SPM.
2 Replace the SPM control printed
circuit board.
3 Replace the spindle interface
printed circuit board in the CNC.
Communication data alarm
9122 C2 1 Replace the communication
cables between the CNC and
SPM.
2 Replace the SPM control printed
circuit board.
3 Replace the spindle interface
printed circuit board in the CNC.
Communication data alarm