9 Troubleshooting
9.1.2 Troubleshooting of Alarms
9-20
A.E50:
MECHATROLINK
Synchronization Error
WDT data of host controller was
not updated correctly.
Check the WDT data updating for
the host controller.
Update the WDT data at the host
controller correctly.
A SERVOPACK fault occurred. −
Turn the power supply to the SER-
VOPACK OFF and ON again. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
A.E51:
MECHATROLINK
Synchronization
Failed
WDT data of host controller was
not updated correctly at the syn-
chronization communications
start, and synchronization com-
munications could not start.
Check the WDT data updating for
the host controller.
Update the WDT data at the host
controller correctly.
A SERVOPACK fault occurred. −
Turn the power supply to the SER-
VOPACK OFF and ON again. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
A.E60:
MECHATROLINK
Communications error
(Reception error)
MECHATROLINK wiring is
incorrect.
Check the MECHATROLINK wir-
ings.
Correct the MECHATROLINK wir-
ing.
Connect the terminator correctly.
MECHATROLINK data recep-
tion error occurred due to noise
interference.
−
Take measures against noise. Check
the MECHATROLINK communi-
cations cable and FG wiring and
take measures such as adding ferrite
core on the MECHATROLINK
communications cable.
A SERVOPACK fault occurred. −
Turn the power supply to the SER-
VOPACK OFF and ON again. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
A.E61:
MECHATROLINK
Transmission Cycle
Error
(Synchronization
interval error)
MECHATROLINK transmission
cycle fluctuated.
Check the MECHATROLINK
transmission cycle setting.
Remove the cause of transmission
cycle fluctuation at host controller.
A SERVOPACK fault occurred. −
Turn the power supply to the SER-
VOPACK OFF and ON again. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
A.E71:
Safety Option Module
Detection Failure
The connection between the
SERVOPACK and the safety
option module is faulty.
Check the connection between the
SERVOPACK and the safety option
module.
Correctly connect the safety option
module.
The safety option module was
disconnected.
–
Execute Fn014 (Resetting configu-
ration error in option module) from
the digital operator or SigmaWin+,
and then turn the power supply OFF
and ON again.
A safety option module fault
occurred.
– Replace the safety option module.
A SERVOPACK fault occurred. – Replace the SERVOPACK.
A.E72:
Feedback Option
Mod
ule Detection
Failure
The connection between the
SERVOPACK and the Feedback
Option Module is Faulty.
Check the connection between the
SERVOPACK and the Feedback
Option Module.
Correctly connect the Feedback
Option Module.
The Feedback Option Module
was disconnected.
−
Execute Fn014 (Resetting configu-
ration error in option module), and
then turn the power supply OFF and
ON again.
A Feedback Option Module fault
occurred.
−
Replace the Feedback Option Mod-
ule.
A SERVOPACK fault occurred. − Replace the SERVOPACK.
(cont’d)
Alarm Number:
Alarm Name
Cause Investigative Actions Corrective Actions
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