YASKAWA SGD7S series Product Manual page 176

Alarm Number:
Possible Cause
Alarm Name
The surrounding air
temperature around
the Servomotor is too
A.860:
high.
Encoder Over-
heated
The Servomotor load
(Detected when a
is greater than the
Rotary Servomo-
rated load.
tor, Absolute Lin-
ear Encoder, or
Direct Drive Ser-
vomotor is con-
nected. However,
A failure occurred in
this alarm is not
the encoder.
detected for
SGMCS
Servomotors with
Incremental
Encoders.)
(Detected at the
A failure occurred in
encoder.)
the SERVOPACK.
The surrounding tem-
perature around the
Servomotor is too
high.
The motor load is
greater than the rated
load.
A.861:
Motor Over-
A failure occurred in
heated
the Serial Converter
Unit.
A failure occurred in
the SERVOPACK.
A.890:
A failure occurred in
Encoder Scale
the linear encoder.
Error
A.891:
A failure occurred in
Encoder Module
the linear encoder.
Error
Setting the origin of
the absolute linear
encoder failed
A.8A0:
because the motor
External Encoder
moved.
Error
A failure occurred in
the external encoder.
Confirmation
Reduce the surrounding
Measure the surround-
air temperature of the
ing air temperature
Servomotor to 40°C or
around the Servomotor.
less.
Operate the Servo Drive
Use the accumulated
so that the motor load
load ratio to check the
remains within the speci-
load.
fied range.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the Servomotor or
–
absolute linear encoder
may be faulty. Replace the
Servomotor or absolute
linear 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.
Measure the surround- Reduce the surrounding
ing temperature around air temperature of the
the Servomotor. Servomotor to 40° or less.
Check the load with the
Operate the Servo Drive
accumulated load ratio
so that the motor load
on the Motion Monitor
remains within the speci-
Tab Page on the Sig-
fied range.
maWin+.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the Serial Con-
–
verter Unit may be faulty.
Replace the Serial Con-
verter Unit.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
The linear encoder may
– be faulty. Replace the lin-
ear encoder.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the linear encoder
may be faulty. Replace the
linear encoder.
Before you set the ori-
gin, use the fully-closed The motor must be
feedback pulse counter stopped while setting the
to confirm that the origin position.
motor is not moving.
Replace the external
–
encoder.
9.1 Alarm Displays
9.1.2 Troubleshooting Alarms
Continued from previous page.
Correction Reference
–
page 8-2
–
–
–
page 8-2
–
–
–
–
*1
–
Continued on next page.
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