
APPENDIXG. ALARM LIST
B–64134EN/01
750
Number ContentsMessage
409 SERVO ALARM: n AXIS TORQUE
ALM
Abnormal servo motor load has been detected. Alternatively, abnormal
spindle motor load has been detected in Cs mode.
410 SERVO ALARM: n–TH AXIS –
EXCESS ERROR
The position deviation value when the n–th axis (axis 1–2) stops is larg-
er than the set value.
Refer to procedure of trouble shooting.
411 SERVO ALARM: n–TH AXIS –
EXCESS ERROR
The position deviation value when the n–th axis (axis 1–2) moves is
larger than the set value.
Refer to procedure of trouble shooting.
413 SERVO ALARM: n–th AXIS – LSI
OVERFLOW
The contents of the error register for the n–th axis (axis 1–2) exceeded
"2
31
power. This error usually occurs as the result of an improperly set
parameters.
415 SERVO ALARM: n–TH AXIS –
EXCESS SHIFT
A speed higher than 524288000 units/s was attempted to be set in the
n–th axis (axis 1–2). This error occurs as the result of improperly set
CMR.
417 SERVO ALARM: n–TH AXIS –
PARAMETER INCORRECT
This alarm occurs when the n–th axis (axis 1–2) is in one of the condi-
tions listed below. (Digital servo system alarm)
1) The value set in Parameter No. 2020 (motor form) is out of the speci-
fied limit.
2) A proper value (111 or –111) is not set in parameter No.2022 (motor
revolution direction).
3) Illegal data (a value below 0, etc.) was set in parameter No. 2023
(number of speed feedback pulses per motor revolution).
4) Illegal data (a value below 0, etc.) was set in parameter No. 2024
(number of position feedback pulses per motor revolution).
5) Parameters No. 2084 and No. 2085 (flexible field gear rate) have not
been set.
6) A value outside the limit of {1 to the number of control axes} or a non–
continuous value (Parameter 1023 (servo axis number) contains a
value out of the range from 1 to the number of axes, or an isolated
value (for example, 4 not prceded by 3).was set in parameter No.
1023 (servo axisnumber).
430 n AXIS : SV. MOTOR OVERHEAT A servo motor overheat occurred.
431 n AXIS : CNV. OVERLOAD 1) PSM: Overheat occurred.
2) β series SVU: Overheat occurred.
432 n AXIS : CNV. LOW VOLT
CONTROL
1) PSMR: The control power supply voltage has dropped.
2) α series SVU: The control power supply voltage has dropped.
433 n AXIS : CNV. LOW VOLT DC LINK 1) PSM: The DC link voltage has dropped.
2) PSMR: The DC link voltage has dropped.
3) α series SVU: The DC link voltage has dropped.
4) β series SVU: The DC link voltage has dropped.
434 n AXIS : INV. LOW VOLT CONTROL SVM: The control power supply voltage has dropped.
435 n AXIS : INV. LOW VOLT DC LINK SVM: The DC link voltage has dropped.
436 n AXIS : SOFTTHERMAL (OVC) The digital servo software detected the soft thermal state (OVC).
437 n AXIS : CNV. OVERCURRENT
POWER
PSM: Overcurrent flowed into the input circuit.
438 n AXIS : INV. ABNORMAL
CURRENT
1) SVM: The motor current is too high.
2) α series SVU: The motor current is too high.
3) β series SVU: The motor current is too high.