
A.ALARM LIST APPENDIX B-63945EN/02
- 708 -
Number Message
SPM
indication
(*1)
Faulty location and remedy Description
SP9051 SSPA:51 LOW VOLT
POWER CIRCUIT
51 1 Check and correct the power
supply voltage.
2 Replace the MC.
Input voltage drop was detected. (PSM
alarm indication: 4) (Momentary power
failure or poor MC contact)
SP9052 SSPA:52 ITP FAULT
1
52 1 Replace the SPM control
printed circuit board.
2 Replace the spindle
interface printed circuit
board in the CNC.
NC interface abnormality was
detected (the ITP signal stopped).
SP9053 SSPA:53 ITP FAULT
2
53 1 Replace the SPM control
printed circuit board.
2 Replace the spindle
interface printed circuit
board in the CNC.
NC interface abnormality was
detected (the ITP signal stopped).
SP9054 SSPA:54
OVERCURRENT
54 Review the load state. An overload current was detected.
SP9055 SSPA:55 ILLEGAL
POWER LINE
55 1 Replace the magnetic
contactor.
2 Check and correct the
sequence.
The power line state signal of the
magnetic contactor for selecting a
spindle or output is abnormal.
SP9056 COOLING FAN
FAILURE
56 Replace the SPM unit. The cooling fan in the SPM control
circuit stopped.
SP9057 CONV. EX.
DECELERATION
POW.
57 1 Decrease the
acceleration/deceleration
duty.
2 Check the cooling condition
(peripheral temperature).
3 If the cooling fan stops,
replace the resistor.
4 If the resistance is abnormal,
replace the resistor.
An overload was detected in the
regenerative resistance. (PSMR alarm
indication: 8)
Thermostat operation or short-time
overload was detected.
The regenerative resistor was
disconnected, or an abnormal
resistance was detected.
SP9058 CNV. OVERLOAD 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)
SP9059 CNV. COOLING FAN
FAILURE
59 Replace the PSM unit. The cooling fan in the PSM stopped.
(PSM alarm indication: 2)
SP9061 SSPA:61 DECODED
ALARM
61 Check parameter settings. The error between the semi-closed
and full-closed sides when the dual
position feedback function is used is
too large.
SP9065 SSPA:65 DECODED
ALARM
65 1 Check parameter settings.
2 Check sensor connections
and signals.
3 Check power line
connections.
The move distance is too long when
the magnetic pole is confirmed
(synchronization spindle)
SP9066 COM. ERROR
BETWEEN SP
AMPS
66 1 Replace the cable.
2 Check and correct the
connection.
An error was found in communication
between amplifiers.