APPENDIXG. ALARM LIST
B–63604EN/01
748
No. DescriptionFaulty location and remedy
SPM
indica-
tion(*1)
Message
7n58 SPN_n_ : OVERLOAD IN
PSM
58 1 Check the PSM cooling status.
2 Replace the PSM unit.
The temperature of the radiator of the
PSM has increased abnormally.
(PSM alarm indication: 3)
7n59 SPN_n_ : COOLING FAN
STOP IN PSM
59 Replace the SPM unit. The cooling fan in the PSM stopped.
(PSM alarm indication: 2)
7n62 SPN_n_ : MOTOR VCMD
OVER-
FLOWED
62 Check and correct the parameters.
(No. 4021, 4056 to 4059)
The specified motor speed is too
large.
7n66 SPN_n_ : AMP MODULE
COMMUNICA-
TION
66 1 Replace the cable.
2 Check and correct the connection.
An error was found in communication
between amplifiers.
7n73 SPN_n_ : MOTOR SEN-
SOR DISCON-
NECTED
73 1 Replace the feedback cable.
2 Check the shield processing.
3 Check and correct the connection.
4 Adjust the sensor.
The motor sensor feedback signal is
not present.
7n74 SPN_n_ : CPU TEST ER-
ROR
74 Replace the SPM control printed–cir-
cuit board.
An error was detected in a CPU test.
7n75 SPN_n_ : CRC ERROR 75 Replace the SPM control printed–cir-
cuit board.
An error was detected in a CRC test.
7n79 SPN_n_ : INITIAL TEST
ERROR
79 Replace the SPM control printed–cir-
cuit board.
An error was detected in an initial test
operation.
7n81 SPN_n_ : 1–ROT MO-
TOR SENSOR
ERROR
81 1 Check and correct the parameter.
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.
7n84 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.
7n85 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.
7n86 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 is not generated.
7n87 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.