YASKAWA Sigma-7 SGD7S Series - Page 613

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 an
alarm still occurs, the
SERVOPACK may
be faulty. Replace
the SERVOPACK.
–
A.860
(1860h)
Encoder Over-
heated
(Detected at the
encoder, but
only when an
absolute
encoder is
used.)
The surrounding air
temperature around
the Servomotor is too
high.
Measure the sur-
rounding air temper-
ature around the
Servomotor.
Reduce the sur-
rounding air temper-
ature of the Servo-
motor to 40°C or
less.
–
The Servomotor load
is greater than the
rated load.
Use the accumulated
load ratio to check
the load.
Operate the Servo
Drive so that the
motor load remains
within the specified
range.
Ä Chap. 10.3
‘Monitoring
SERVOPACK
Status’
page 434
A failure occurred in
the encoder.
– Turn the power
supply to the SER-
VOPACK OFF and
ON again. If the
alarm still occurs, the
Servomotor or abso-
lute linear encoder
may be faulty.
Replace the Servo-
motor or absolute
linear encoder.
–
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.861
(1861h)
Motor Over-
heated
The surrounding tem-
perature around the
Servomotor is too
high.
Measure the sur-
rounding tempera-
ture around the Ser-
vomotor.
Reduce the sur-
rounding air temper-
ature of the Servo-
motor to 40°C or
less.
–
The motor load is
greater than the rated
load.
Check the load with
the accumulated
load ratio on the
Motion Monitor Tab
Page on the Sig-
maWin+.
Operate the Servo
Drive so that the
motor load remains
within the specified
range.
Ä Chap. 10.3
‘Monitoring
SERVOPACK
Status’
page 434
Sigma-7 Series SERVOPACKs
Maintenance
Alarm Displays > Troubleshooting Alarms
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