YASKAWA E-7S SERVOPACK SGD7S Product Manual page 549

15.2 Alarm Displays
15.2.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.d10:
Motor-Load Posi-
tion Deviation
Overflow
A.d30:
Position Data
Overflow
A.E00:
Command Option
Module IF Initial-
ization Timeout
Error
A.E02:
Command Option
Module IF
Synchronization
Error 1
15-38
Possible Cause
The motor direction Check the motor direc-
and external encoder tion and the external
installation orientation encoder installation ori-
are backward. entation.
There is an error in the
connection between
Check the coupling of
the load (e.g., stage)
the external encoder.
and external encoder
coupling.
The position data
Check the input refer-
exceeded
ence pulse counter.
±1,879,048,192.
The connection
Check the connection
between the SERVO-
between the SERVO-
PACK and the com-
PACK and the com-
mand option module
mand option module.
is faulty.
A command option
module fault –
occurred.
A SERVOPACK fault
–
occurred.
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.
The connection
Check the connection
between the SERVO-
between the SERVO-
PACK and the com-
PACK and the com-
mand option module
mand option module.
is faulty.
A command option
module fault –
occurred.
A SERVOPACK fault
–
occurred.
Confirmation
Install the external
encoder in the opposite
direction, or change the
setting of Pn002 =
n.X (External
Encoder Usage) to
reverse the direction.
Check the mechanical
coupling.
Reconsider the operating
specifications.
Correctly connect the
command
option module.
Replace the command
option module.
Replace the SERVO-
PACK.
Turn the power supply
OFF and then ON again. If
the alarm occurs again,
restart communications
processing from the host
controller.
Correctly connect the
command option module.
Replace the command
option module.
Replace the SERVO-
PACK.
Continued from previous page.
Correction Reference
page 10-5
–
–
–
–
–
–
–
–
–
Continued on next page.