Fanuc Power Mate i-D/H Operator Manual

G. ALARM LIST
B–63174EN/03
APPENDIX
606
Number ContentsMessage
417 SERVO ALARM: n–TH AXIS –
PARAMETER INCORRECT
This alarm occurs when the n–th axis (axis 1 to 8) is in one of the
conditions listed below. (Digital servo system alarm)
1) The value set in Parameter No. 2020 (motor form) is out of the
specified 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).
7) There is a parameter setting error in torque control of PMC axis
control. (The torque constant parameter is set to 0.)
420 SERVO ALARM: n AXIS SYNC
TORQUE
(M series)
During simple synchronous control, the difference between the
torque commands for the master and slave axes exceeded the value
set in parameter No. 2031.
421 SERVO ALARM: n AXIS EXCESS
ER (D)
The difference between the errors in the semi–closed loop and
closed loop has become excessive during dual position feedback.
Check the values of the dual position conversion coefficients in pa-
rameters No. 2078 and 2079.
422 SERVO ALARM: n AXIS In torque control of PMC axis control, a specified allowable speed
has been exceeded.
423 SERVO ALARM: n AXIS In torque control of PMC axis control, the parameter–set allowable
cumulative travel distance has been exceeded.
430 n AXIS : SV. MOTOR OVERHEAT A servo motor overheat occurred.
431 n AXIS : CNV. OVERLOAD A servo motor overheat occurred.
432 n AXIS : CNV. LOWVOLT
CON./POWFAULT
A low–voltage alarm is issued in the converter control section.
433 n AXIS : CNV. LOW VOLT DC LINK The DC link voltage has dropped.
434 n AXIS : INV. LOW VOLT CONTROL The control power supply voltage has dropped.
435 n AXIS : INV. LOW VOLT DC LINK 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
Overcurrent flowed into the input circuit.
438 n AXIS : INV. ABNORMAL
CURRENT
An abnormal–current alarm is issued in the inverter.
439 n AXIS : CNV. OVERVOLT POWER An overvoltage alarm is issued.
440 n AXIS : CNV. EX DECELERATION
POW.
Alternatively, the regenerative discharge circuit is abnormal.
441 n AXIS : ABNORMAL CURRENT
OFFSET
The digital servo software detected an abnormality in the motor cur-
rent detection circuit.
442 n AXIS : CNV. CHARGE FAULT/INV.
DB
The contact of the magnetic contactor of the servo amplifier is fused.
443 n AXIS : CNV. COOLING FAN
FAILURE
The cooling fan of the converter is abnormal.

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