YASKAWA E-V Series User Manual page 269

8 Troubleshooting
8.1.2 Troubleshooting of Alarms
Alarm Number:
Alarm Name
(Alarm Description)
A.E51:
MECHATROLINK
Synchronization
Failed
A.E60:
MECHATROLINK
Communications error
(Reception error)
A.E61:
MECHATROLINK
Transmission Cycle
Error
(Synchronization
interval error)
A.EA2:
DRV Alarm 2
(SERVOPACK WDT
error)
A.Ed1:
Command Execution
Timeout
8-14
Cause
WDT data of host controller was
not updated correctly at the syn-
chronization communications
start, and synchronization com-
munications could not start.
A SERVOPACK fault occurred.
MECHATROLINK wiring is
incorrect.
MECHATROLINK data recep-
tion error occurred due to noise
interference.
A SERVOPACK fault occurred.
MECHATROLINK transmission
cycle fluctuated.
A SERVOPACK fault occurred.
MECHATROLINK transmission
cycle fluctuated.
A SERVOPACK fault occurred.
A timeout error occurred when
using an MECHATROLINK
command.
Investigative Actions
Check the WDT data updating for
the host controller.
−
Check the MECHATROLINK wir-
ings.
−
−
Check the MECHATROLINK
transmission cycle setting.
−
Check the MECHATROLINK
transmission cycle setting.
−
Check the motor status when the
command is executed.
(cont'd)
Corrective Actions
Update the WDT data at the host
controller correctly.
Restart the SERVOPACK. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
Correct the MECHATROLINK wir-
ing.
Connect the terminator correctly.
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.
Restart the SERVOPACK. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
Remove the cause of transmission
cycle fluctuation at host controller.
Restart the SERVOPACK. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
Remove the cause of transmission
cycle fluctuation at host controller.
Restart the SERVOPACK. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
Execute the SV_ON or SENS_ON
command only when the motor is
not running.