APPENDIX
B–63844EN/02
G. ALARM LIST
845
No. DescriptionFaulty location and remedy
SPM
indica-
tion(*1)
Message
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
specified speed.
An excessive motor load torque is
detected.
The acceleration/deceleration time
in parameter No. 4082 is insuffi-
cient.
9003 SPN_n_ : FUSE ON DC
LINK BLOWN
03 1 Replace the SPM unit.
2 Check the motor insulation sta-
tus.
3 Replace the interface cable.
The PSM becomes ready (00 is in-
dicated), 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 de-
vice is damaged or the motor is
ground–fault.)
The JX1A/JX1B connection cable is
abnormal.
9004 SPN_n_ : INPUT FUSE/
POWER
FAULT
04 Check the state of the input power
supply to the PSM.
The PSM found a missing power
supply phase. (PSM alarm 5)
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 mo-
tor 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 posi-
tion control mode, positional devi-
ations were accumulated exces-
sively (SFR and SRV were turned
off during spindle synchronization.)
9009 SPN_n_ : OVERHEAT
MAIN CIRCUIT
09 1 Improve the heat sink cooling
status.
2 If the heat sink cooling fan stops,
replace the SPM unit.
Abnormal temperature rise of the
power transistor radiator
9011 SPN_n_ : OVERVOLT
POW CIRCUIT
11 1 Check the selected PSM.
2 Check the input power voltage
and change in power during mo-
tor deceleration. If the voltage
exceeds 253 VAC (for the 200–V
system) or 530 VAC (for the
400–V system), improve the
power supply impedance.
Overvoltage of the DC link section
of the PSM was detected. (PSM
alarm indication: 7)
PSM selection error. (The maxi-
mum output specification of the
PSM is exceeded.)
9012 SPN_n_ : OVERCUR-
RENT POW
CIRCUIT
12 1 Check the motor insulation sta-
tus.
2 Check the spindle parameters.
3 Replace the SPM unit.
The motor output current is abnor-
mally high.
A motor–specific parameter does
not match the motor model.
Poor motor insulation
9015 SPN_n_ : SP SWITCH
CONTROL
ALARM
15 1 Check and correct the ladder se-
quence.
2 Replace the switching MC.
The switch sequence in spindle
switch/output switch operation is ab-
normal.
The switching MC contact status
check signal and command do not
match.
9016 SPN_n_ : RAM FAULT 16 Replace the SPM control printed cir-
cuit board.
Abnormality in an SPM control cir-
cuit component is detected. (RAM
for external data is abnormal.)