3.2 FT82 SERVOPACK with MECHATROLINK-II Communications References
3.2.3 Troubleshooting Alarms
3
Maintenance
3-75
A.d01:
Position Devia-
tion Overflow
Alarm at Servo
ON
The servo was turned
ON after the position
deviation exceeded
the setting of Pn526
(Excessive Position
Deviation Alarm Level
at Servo ON) while the
servo was OFF.
Check the position
deviation while the
servo is OFF.
Optimize the setting of
Pn526 (Excessive Position
Deviation Alarm Level at
Servo ON).
*1
A.d02:
Position Devia-
tion Overflow
Alarm for Speed
Limit at Servo ON
If position deviation
remains in the devia-
tion counter, the set-
ting of Pn529 or
Pn584 (Speed Limit
Level at Servo ON)
limits the speed when
the servo is turned
ON. This alarm occurs
if a position reference
is input and the set-
ting of Pn520 (Exces-
sive Position Deviation
Alarm Level) is
exceeded.
–
Optimize the setting of
Pn520 (Excessive Position
Deviation Alarm Level). Or,
adjust the setting of
Pn529 or Pn584 (Speed
Limit Level at Servo ON).
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.
*1
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.E02:
MECHATROLINK
Internal Synchro-
nization Error 1
The MECHATROLINK
transmission cycle
fluctuated.
–
Remove the cause of
transmission cycle fluctu-
ation at the host control-
ler.
–
A failure occurred in
the SERVOPACK.
–
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
–
A.E40:
MECHATROLINK
Transmission
Cycle Setting
Error
The setting of
MECHATROLINK
transmission cycle is
outside of the speci-
fied range.
Check the setting of the
MECHATROLINK trans-
mission cycle.
Set the MECHATROLINK
transmission cycle to an
appropriate value.
–
A.E50
*5
:
MECHATROLINK
Synchronization
Error
The WDT data in the
host controller was
not updated normally.
Check to see if the WDT
data is being updated at
the host controller.
Correctly update the WDT
data at the host controller.
–
A failure occurred in
the SERVOPACK.
–
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
–
Continued on next page.
Continued from previous page.
Alarm Number:
Alarm Name
Possible Cause
Confirmation
Correction
Reference