YASKAWA SGD7S-xxxDA0 series Product Manual page 532

16.2 Alarm Displays
16.2.2 Troubleshooting Alarms
Alarm Code:
Alarm Name
8A0h:
External Encoder
Error
8A1h:
External Encoder
Module Error
8A2h:
External Incre-
mental Encoder
Sensor Error
8A3h:
External Abso-
lute Encoder
Position Error
8A5h:
External Encoder
Overspeed
8A6h:
External Encoder
Overheated
A10h:
EtherCAT DC
Synchronization
Error
A11h:
EtherCAT State
Error
A12h:
EtherCAT Output
Data Synchroni-
zation Error
16-26
Possible Cause
Setting the origin of Before you set the ori-
the absolute linear gin, use the fully-closed
encoder failed feedback pulse counter
because the motor to confirm that the
moved. motor is not moving.
A failure occurred in
–
the external encoder.
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.
The synchronization
timing (Sync0) for Eth-
–
erCAT communica-
tions fluctuated.
The EtherCAT com-
munications state left
the Operational state –
during motor opera-
tion.
Noise caused an error
in EtherCAT commu- –
nications.
The controller did not
Check the process data
update the process
specified by the control-
data during the fixed
ler.
period.
The EtherCAT Com-
Check the EtherCAT
munications Cable or
Communications Cable
connector wiring is
and connector wiring.
faulty.
Confirmation
The motor must be
stopped while setting the
origin position.
Replace the external
encoder.
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
OFF and ON again and re-
establish communica-
tions.
Reset the alarm and then
re-establish communica-
tions.
Check the EtherCAT wir-
ing and implement noise
countermeasures.
Correct the controller so
that the process data is
updated during the fixed
period.
Wire the connections cor-
rectly.
Continued from previous page.
Correction Reference
page 6-52
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