15.2 Alarm Displays
15.2.2 Troubleshooting Alarms
15-38
A.d10:
Motor-Load Posi-
tion Deviation
Overflow
The motor direction
and external encoder
installation orientation
are backward.
Check the motor direc-
tion and the external
encoder installation ori-
entation.
Install the external
encoder in the opposite
direction, or change the
setting of Pn002 =
n.X
(External
Encoder Usage) to
reverse the direction.
There is an error in the
connection between
the load (e.g., stage)
and external encoder
coupling.
Check the coupling of
the external encoder.
Check the mechanical
coupling.
–
A.d30:
Position Data
Overflow
The position data
exceeded
±
1,879,048,192.
Check the input refer-
ence pulse counter.
Reconsider the operating
specifications.
–
A.E00:
Command Option
Module IF Initial-
ization Timeout
Error
The connection
between the SERVO-
PACK and the com-
mand option module
is faulty.
Check the connection
between the SERVO-
PACK and the com-
mand option module.
Correctly connect the
command
option module.
–
A command option
module fault
occurred.
–
Replace the command
option module.
–
A SERVOPACK fault
occurred.
–
Replace the SERVO-
PACK.
–
A.E02:
Command Option
Module IF
Synchronization
Error 1
The timing of synchro-
nization between the
servomotor and com-
mand option module
changed due to
change in the com-
munications cycle of
the host controller
connected to the
command option
module.
–
Turn the power supply
OFF and then ON again. If
the alarm occurs again,
restart communications
processing from the host
controller.
–
The connection
between the SERVO-
PACK and the com-
mand option module
is faulty.
Check the connection
between the SERVO-
PACK and the com-
mand option module.
Correctly connect the
command option module.
–
A command option
module fault
occurred.
–
Replace the command
option module.
–
A SERVOPACK fault
occurred.
–
Replace the SERVO-
PACK.
–
Continued on next page.
Continued from previous page.
Alarm Number:
Alarm Name
Possible Cause
Confirmation
Correction
Reference