14.2 Alarm Displays
14.2.2 Troubleshooting Alarms
14-28
A.8A5:
External Encoder
Overspeed
An overspeed error
was detected in the
external encoder.
Check the maximum
speed of the external
encoder.
Keep the external
encoder below its maxi-
mum speed.
–
A.8A6:
External Encoder
Overheated
An overheating error
was detected in the
external encoder.
–
Replace the external
encoder.
–
A.AA0:
Reset Failure (A
failure occurred in
resetting the
Module.)
An error occurred
when saving parame-
ters in non-volatile
memory.
–
Initialize the parameters.
page 5-10
Replace the DeviceNet
Module.
–
The DeviceNet Mod-
ule failed.
–
Replace the DeviceNet
Module.
–
A.AE6:
Address Error
The same node
address already exists
on the DeviceNet net-
work.
Check the node
address that was set.
Change the node
address.
page 13-3
A.AE8:
Rotary Switch
Setting Error
(There is an error
in the node
address or baud
rate setting.)
There is an error in the
rotary switch settings.
Check the rotary switch
settings.
Correct the rotary switch
settings.
page 13-3
A.AE9:
Bus-OFF Error (A
Bus-OFF error
occurred in Devi-
ceNet communi-
cations.)
Terminating resistors
are not connected.
Check network termina-
tion.
Connect terminating
resistors to the ends of
the network.
page 4-40
The network cable
length exceeds the
maximum network
cable length.
Check the network
cable length.
Correct the network
installation.
DeviceNet connec-
tors are not making
proper contact.
Check the DeviceNet
connectors to see if
they are making proper
contact.
Tighten the connectors.
–
The DeviceNet Mod-
ule failed.
–
Replace the DeviceNet
Module.
–
A.b33:
Current Detec-
tion Error 3
A failure occurred in
the current detection
circuit.
–
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.bF0:
System Alarm 0
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.bF1:
System Alarm 1
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.bF2:
System Alarm 2
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
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