YASKAWA SGD7S series Product Manual page 93

Alarm Number:
Possible Cause
Alarm Name
A failure occurred in
the external encoder.
A.8A1:
External Encoder
A failure occurred in
Module Error
the Serial Converter
Unit.
A.8A2:
A failure occurred in
External Incre-
the external encoder.
mental Encoder
Sensor Error
A.8A3:
A failure occurred in
External Abso-
the external absolute
lute Encoder
encoder.
Position Error
A.8A5: An overspeed error
was detected in the
External Encoder
external encoder.
Overspeed
A.8A6: An overheating error
was detected in the
External Encoder
external encoder.
Overheated
A malfunction
occurred in the speed
reference input sec-
A.b10:
tion.
Speed Reference
A/D Error
(Detected when
the servo is
A failure occurred in
turned ON.)
the SERVOPACK.
A malfunction
occurred in the speed
reference input sec-
tion.
A.b11:
Speed Reference
A/D Data Error
A failure occurred in
the SERVOPACK.
A malfunction
occurred in the read-
ing section for the
A.b20:
torque reference
Torque Refer-
input.
ence A/D Error
(Detected when
the servo is
A failure occurred in
turned ON.)
the SERVOPACK.
A.b33:
A failure occurred in
the current detection
Current Detec-
circuit.
tion Error 3
4.1 SERVOPACKs with Analog Voltage/Pulse Train References
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.
Check the maximum Keep the external
speed of the external encoder below its maxi-
encoder. mum speed.
Replace the external
–
encoder.
Reset the alarm and
–
restart operation.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Reset the alarm and
–
restart operation.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Reset the alarm and
–
restart operation.
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.
4.1.3 Troubleshooting Alarms
Continued from previous page.
Correction Reference
–
–
–
–
–
–
*1
–
*1
–
*1
–
–
Continued on next page.
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