3.5 FT83 SERVOPACKs with Analog Voltage/Pulse Train References
3.5.3 Troubleshooting Alarms
3-224
A.8A2:
External Incre-
mental Encoder
Sensor Error
A failure occurred in
the external encoder.
–
Replace the external
encoder.
–
A.8A3:
External Abso-
lute Encoder
Position Error
A failure occurred in
the external absolute
encoder.
–
The external absolute
encoder may be faulty.
Refer to the encoder
manufacturer’s instruc-
tion manual for correc-
tions.
–
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.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.
–
A.bF3:
System Alarm 3
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.bF4:
System Alarm 4
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.bF5:
System Alarm 5
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