YASKAWA SGD7S-R70A20A023F40B Product Manual page 112

5.1 FT40 Specification
5.1.3 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.8A1:
External Encoder
Module Error
A.8A2:
External Incre-
mental Encoder
Sensor Error
A.8A3:
External Abso-
lute Encoder
Position Error
A.8A5:
External Encoder
Overspeed
A.8A6:
External Encoder
Overheated
A.b33:
Current Detec-
tion Error 3
A.b6A:
MECHATROLINK
Communications
ASIC Error 1
A.b6b:
MECHATROLINK
Communications
ASIC Error 2
A.bF0:
System Alarm 0
A.bF1:
System Alarm 1
5-24
Possible Cause
A failure occurred in
–
the external encoder.
A failure occurred in
the Serial Converter –
Unit.
A failure occurred in
–
the external encoder.
A failure occurred in
the external absolute –
encoder.
An overspeed error Check the maximum
was detected in the speed of the external
external encoder. encoder.
An overheating error
was detected in the –
external encoder.
A failure occurred in
the current detection –
circuit.
There is a fault in the
SERVOPACK
MECHATROLINK –
communications sec-
tion.
A malfunction
occurred in the
MECHATROLINK –
communications sec-
tion due to noise.
There is a fault in the
SERVOPACK
MECHATROLINK –
communications sec-
tion.
A failure occurred in
–
the SERVOPACK.
A failure occurred in
–
the SERVOPACK.
Confirmation
Replace the external
encoder.
Replace the Serial Con-
verter Unit.
Replace the external
encoder.
The external absolute
encoder may be faulty.
Refer to the encoder
manufacturer's instruc-
tion manual for correc-
tions.
Keep the external
encoder below its maxi-
mum speed.
Replace the external
encoder.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace 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.
Implement the following
countermeasures against
noise.
• Check the MECHA-
TROLINK Communica-
tions Cable and FG
wiring.
• Attach a ferrite core to
the MECHATROLINK
Communications Cable.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace 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.
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 from previous page.
Correction Reference
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Continued on next page.