APPENDIXG. ALARM LIST
B–64144EN/01
826
No. DescriptionFaulty location and remedy
SVPM
STATUS1
indica-
tion(*1)
Message
7n81 SPN_n_ : 1–ROT MO-
TOR SENSOR
ERROR
81 1 Check and correct the parame-
ter.
2 Replace the feedback cable.
3 Adjust the sensor.
The one–rotation signal of the motor
sensor cannot be correctly detected.
7n82 SPN_n_ : NO 1–ROT
MOTOR SEN-
SOR
82 1 Replace the feedback cable.
2 Adjust the sensor.
The one–rotation signal of the motor
sensor is not generated.
7n83 SPN_n_ : MOTOR SEN-
SOR SIGNAL
ERROR
83 1 Replace the feedback cable.
2 Adjust the sensor.
An irregularity was detected in a mo-
tor sensor feedback signal.
7n97 SPN_n_ : OTHER
SPINDLE
ALARM
97 Replace the SVPM. Another irregularity was detected.
7n98 SPN_n_ : OTHER CON-
VERTER
ALARM
98 Replace the SVPM. Another irregularity was detected.
No. Message
SVPM
STATUS1
indica-
tion(*1)
Faulty location and remedy Description
9001 SPN_n_ : MOTOR
OVERHEAT
01 1 Check and correct the peripher-
al temperature and load status.
2 If the cooling fan stops, replace
it.
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.
9002 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.
9004 SPN_n_ : INPUT FUSE/
POWER
FAULT
04 Check the state of the input pow-
er supply to the SVPM.
Power supply phase was missed.
9006 SPN_n_ : THERMAL
SENSOR DIS-
CONNECT
06 1 Check and correct the parame-
ter.
2 Replace the feedback cable.
The temperature sensor of the motor
is disconnected.
9007 SPN_n_ : OVERSPEED 07 Check for a sequence error. (For
example, check whether spindle
synchronization 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 control.)