
APPENDIXG. ALARM LIST
B–64124EN/01
872
No. DescriptionFaulty location and remedy
SPM
indica-
tion(*1)
Message
9019 SPN_n_ : EX OFFSET
CURRENT U
19 Replace the SPM unit. Abnormality in an SPM component is
detected. (The initial value for the U
phase current detection circuit is ab-
normal.)
9020 SPN_n_ : EX OFFSET
CURRENT V
20 Replace the SPM unit. Abnormality in an SPM component is
detected. (The initial value of the V
phase current detection circuit is ab-
normal.)
9021 SPN_n_ : POS SENSOR
POLARITY ER-
ROR
21 Check and correct the parameters.
(No. 4000#0, 4001#4)
The polarity parameter setting of the
position sensor is wrong.
9024 SPN_n_ : SERIAL
TRANSFER
ERROR
24 1 Place the CNC–to–spindle cable
away from the power cable.
2 Replace the cable.
The CNC power is turned off (normal
power–off or broken cable).
An error is detected in communica-
tion data transferred to the CNC.
9027 SPN_n_ : DISCONNECT
POS–CODER
27 Replace the cable. The spindle position coder (connec-
tor JYA3) signal is abnormal.
9029 SPN_n_ : SHORTTIME
OVERLOAD
29 Check and correct the load status. Excessive load has been applied
continuously for a certain period of
time. (This alarm is issued also when
the motor shaft has been locked in
the excitation state.)
9030 SPN_n_ : OVERCUR-
RENT POW
CIRCUIT
30 Check and correct the power supply
voltage.
Overcurrent is detected in PSM main
circuit input. (PSM alarm indication:
1)
Unbalanced power supply.
PSM selection error (The maximum
PSM output specification is exceed-
ed.)
9031 SPN_n_ : MOTOR LOCK 31 Check and correct the load status. The motor cannot rotate at a speci-
fied speed. (A level not exceeding
the SST level for the rotation com-
mand has existed continuously.)
9032 SPN_n_ : RAM FAULT
SERIAL LSI
32 Replace the SPM control printed cir-
cuit board.
Abnormality in an SPM control circuit
component is detected. (The LSI de-
vice for serial transfer is abnormal.)
9033 SPN_n_ : SHORTAGE
POWER
CHARGE
33 1 Check the number of connected
SVM and SPM units.
2 Replace the PSM unit.
Charging the main circuit was not
completed within a prescribed time
period.
9034 SPN_n_ : PARAMETER
SETTING ER-
ROR
34 Correct a parameter value according
to the manual.
If the parameter number is unknown,
connect the spindle check board, and
check the indicated parameter.
Parameter data exceeding the allow-
able limit is set.
9036 SPN_n_ : OVERFLOW
ERROR
COUNTER
36 Check whether the position gain val-
ue is too large, and correct the value.
An error counter overflow occurred.