
APPENDIX
B–63524EN/01
G. ALARM LIST
875
No. DescriptionFaulty location and remedy
SPM in-
dica-
tion(*1)
Message
7n97 SPN_n_ : OTHER
SPINDLE
ALARM
97 Replace the SPM. Another irregularity was detected.
7n98 SPN_n_ : OTHER CON-
VERTER
ALARM
98 Check the PSM alarm display. A PSM alarm was detected.
No. Message
SPM in-
dica-
tion(*1)
Faulty location and remedy Description
9n01 SPN_n_ : MOTOR OVER-
HEAT
01 1 Check and correct the peripheral
temperature and load status.
2 If the cooling fan stops, replace it.
The thermostat embedded in the mo-
tor winding operated.
The internal temperature of the motor
exceeds the specified level.
The motor is used in excess of the
continuous rating, or the cooling com-
ponent is abnormal.
9n02 SPN_n_ : EX SPEED ER-
ROR
02 1 Check and correct the cutting
conditions to decrease the load.
2 Correct parameter No. 4082.
The motor speed cannot follow a spe-
cified speed.
An excessive motor load torque is de-
tected.
The acceleration/deceleration time in
parameter No. 4082 is insufficient.
9n03 SPN_n_ : FUSE ON DC
LINK BLOWN
03 1 Replace the SPM unit.
2 Check the motor insulation status.
3 Replace the interface cable.
The PSM becomes ready (00 is indi-
cated), but the DC link voltage is too
low in the SPM.
The fuse in the DC link section in the
SPM is blown. (The power device is
damaged or the motor is ground–
fault.)
The JX1A/JX1B connection cable is
abnormal.
9n06 06 1 Check and correct the parameter.
2 Replace the feedback cable.
The temperature sensor of the motor
is disconnected.
9n07 SPN_n_ : OVERSPEED 07 Check for a sequence error. (For ex-
ample, check whether spindle syn-
chronization was specified when the
spindle could not be turned.)
The motor speed has exceeded
115% of its rated speed.
When the spindle axis was in position
control mode, positional deviations
were accumulated excessively (SFR
and SRV were turned off during
spindle synchronization.)
9n09 SPN_n_ : OVERHEAT
MAIN CIRCUIT
09 1 Improve the heat sink cooling sta-
tus.
2 If the heat sink cooling fan stops,
replace the SPM unit.
Abnormal temperature rise of the
power transistor radiator