Fanuc Power Mate i-D/H Operation Maintenance Handbook

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Number ContentsMessage
417 SERVO ALARM: nTH AXIS
PARAMETER
INCORRECT
This alarm occurs when the nth axis
(axis 18) 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 feed-
back pulses per motor revolu-
tion).
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 (Parame-
ter 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 pa-
rameter No. 1023 (servo axis-
number).
7) An invalid value was specified
for a parameter while torque con-
trol was applied as part of PMC
axis control (the torque constant
parameter was set to 0).
420 SERVO ALARM: n AXIS
SYNC TORQUE
During simple synchronous control,
the difference between the torque
commands for the master and slave
axes exceeded the value set in pa-
rameter No. 2031.
421 SERVO ALARM: n AXIS
EXCESS ER (D)
The difference between the errors in
the semiclosed loop and closed
loop has become excessive during
dual position feedback. Check the
values of the dual position conver-
sion coefficients in parameters 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 parameterset allowable cumu-
lative travel distance has been ex-
ceeded.
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 oc-
curred.

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