Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Mechatrolink-III Communication Reference - Manual (Page 331)

9 Troubleshooting
9.1.2 Troubleshooting of Alarms
9-20
A.d10:
Motor-load Position
Error Overflow
Motor rotation direction and
external encoder installation
direction are opposite.
Check the servomotor rotation
direction and the external encoder
installation direction.
Install the external encoder in the
opposite direction, or change the
setting of the external encoder
usage method (Pn002.3) to reverse
the direction.
Mounting of the load (e.g., stage)
and external encoder joint instal-
lation are incorrect.
Check the external encoder
mechanical connection.
Check the mechanical joints.
A.E02:
MECHATROLINK
Internal
Synchronization
Error 1
MECHATROLINK transmission
cycle fluctuated.
−
Remove the cause of transmission
cycle fluctuation at host controller.
A fault occurred in the SERVO-
PACK.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
A.E40:
MECHATROLINK
Transmission Cycle
Setting Error
Setting of MECHATROLINK
transmission cycle is out of speci-
fications range.
Check the MECHATROLINK
transmission cycle setting. Set the transmission cycle to the
proper value.
A.E41:
MECHATROLINK
Communications Data
Size Setting Error
The number of transmission bytes
set by the DIP switch S3 is incor-
rect. Check the MECHATROLINK com-
munications data size of the host
controller. Reset the setting of the DIP switch
S3 to change the number of trans-
mission bytes to the proper value.
A.E42:
MECHATROLINK
Station Address
Setting Error
The station address is out of the
allowable setting range.
Check the rotary switches, S1 and
S2, to see if the station address is
within the allowable range from 03
to EF.
Check the setting for the station
address of the host controller, and
reset the setting of the rotary
switches, S1 and S2 to change the
address to the proper value between
03 and EF.
Two or more stations on the com-
munications network have the
same address. Check that two or more stations on
the communications network have
the same address.
Check the setting for the station
address of the host controller, and
reset the setting of the rotary
switches, S1 and S2 to change the
address to the proper value between
03 and EF.
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 fault occurred in the SERVO-
PACK.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK 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 fault occurred in the SERVO-
PACK.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
(cont’d)
Alarm Number:
Alarm Name
(Alarm Description)
Cause Investigative Actions Corrective Actions