YASKAWA Sigma-7 SGD7S Series - Page 624

Alarm Code Alarm Name Possible Cause Confirmation Correction Reference
A failure occurred in
the SERVOPACK.
– Turn the power
supply to the SER-
VOPACK OFF and
ON again. If the
alarm still occurs, the
SERVOPACK may
be faulty. Replace
the SERVOPACK.
–
A.CC0
(1CC0h)
Multiturn Limit
Disagreement
When using a Direct
Drive Servomotor, the
setting of Pn205 (Mul-
titurn Limit) does not
agree with the
encoder.
Check the setting of
Pn205.
Correct the setting of
Pn205 (0 to 65,535).
Ä Chap. 7.9.9
‘Multiturn Limit
Disagreement
Alarm (A.CC0)’
page 235
The multiturn limit of
the encoder is dif-
ferent from that of the
SERVOPACK. Or, the
multiturn limit of the
SERVOPACK has
been changed.
Check the setting of
Pn205 (Multiturn
Limit).
Change the setting if
the alarm occurs.
Ä Chap. 7.9.9
‘Multiturn Limit
Disagreement
Alarm (A.CC0)’
page 235
A failure occurred in
the SERVOPACK.
– Turn the power
supply to the SER-
VOPACK OFF and
ON again. If the
alarm still occurs, the
SERVOPACK may
be faulty. Replace
the SERVOPACK.
–
A.CF1
(1CF1h)
Reception
Failed Error in
Feedback
Option Module
Communica-
tions
The cable between
the Serial Converter
Unit and SERVO-
PACK is not wired cor-
rectly or there is a
faulty contact.
Check the wiring of
the external encoder.
Correctly wire the
cable between the
Serial Converter Unit
and SERVOPACK.
Ä Chap. 5.5.3
‘Wiring the
SERVOPACK to
the Encoder’
page 108
A specified cable is
not being used
between Serial Con-
verter Unit and SER-
VOPACK.
Check the wiring
specifications of the
external encoder.
Use a specified
cable.
–
The cable between
the Serial Converter
Unit and SERVO-
PACK is too long.
Measure the length
of the cable that con-
nects the Serial Con-
verter Unit.
The length of the
cable between the
Serial Converter Unit
and SERVOPACK
must be 20 m or
less.
–
The sheath on cable
between the Serial
Converter Unit and
SERVOPACK is
broken.
Check the cable that
connects the Serial
Converter Unit.
Replace the cable
between the Serial
Converter Unit and
SERVOPACK.
–
Sigma-7 Series SERVOPACKs
Maintenance
Alarm Displays > Troubleshooting Alarms
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