11 Inspection, Maintenance, and Troubleshooting
11.2.3 Troubleshooting of the Servo Drive Alarms
11-12
A.029:
Motor Parameter
Checksum Error
(The motor parameter
data in the SERVO-
PACK is corrupted.)
Writing the motor parameters
failed.
Check to see if write processing
ended before the write was com-
pleted.
Write the motor parameters again.
Motor Parameter Error
Check to see if suitable motor
parameters were written.
Write suitable motor parameters.
The power supply voltage sud-
denly dropped.
Measure the power supply voltage.
Set the power supply voltage within
the specified range.
The power supply went OFF
while changing a motor parame-
ter setting.
Note the circumstances when the
power supply went OFF.
Write the motor parameters again.
The number of times that motor
parameters were written
exceeded the limit.
Check to see if the parameters were
frequently changed.
The SERVOPACK may be faulty.
Repair or replace the SERVO-
PACK.
Malfunction caused by noise
from the AC power supply or
grounding line, static electricity
noise, etc.
Turn the power supply ON and OFF
several times. If the alarm still
occurs, there may be noise interfer-
ence.
Take countermeasures against
noise.
Gas, water drops, or cutting oil
entered the SERVOPACK and
caused failure of the internal
components.
Check the installation conditions.
The SERVOPACK may be faulty.
Replace the SERVOPACK.
SERVOPACK failure
Turn the power supply ON and OFF
several times. If the alarm still
occurs, the SERVOPACK is faulty.
The SERVOPACK may be faulty.
Replace the SERVOPACK.
A.02C:
Converter Parameter
Checksum Error
(The parameter data in
the power regeneration
converter is incorrect.)
Power regeneration converter
failure
−
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
A.02D:
Converter Parameter
Format Error
(The parameter format in
the power regeneration
converter is incorrect.)
Power regeneration converter
failure
−
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
A.02E:
Converter System
Checksum Error
(The parameter data in
the power regeneration
converter is incorrect.)
Power regeneration converter
failure
−
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
A.030:
Main Circuit Detector
Error
SERVOPACK failure
−
The SERVOPACK may be faulty.
Replace the SERVOPACK.
A.040:
Parameter Setting
Error
(The parameter setting
was out of the allowable
setting range.)
The SERVOPACK and servomo-
tor capacities do not match each
other.
Check the combination of SERVO-
PACK and servomotor capacities.
Select the proper combination of
SERVOPACK and servomotor
capacities.
SERVOPACK failure
−
The SERVOPACK may be faulty.
Replace the SERVOPACK.
The parameter setting is out of
the specified range.
Check the setting ranges of the
parameters that have been changed.
Set the parameter to a value within
the specified range.
A.042:
Parameter
Combination Error
The speed of program JOG oper-
ation is lower than the setting
range after having changed the
setting of Pn533 “Program JOG
Movement Speed.”
Check that the detection conditions
*
is satisfied.
Increase the setting for Pn533 “Pro-
gram JOG Movement Speed.”
(cont’d)
Alarm:
Alarm Name
Cause
Investigative Actions
Corrective Actions
