YASKAWA SGD7S-1R9D Product Manual page 505

Alarm Code:
Possible Cause
Alarm Name
A failure occurred in
the external encoder.
8A1 hex:
External Encoder
A failure occurred in
Module Error
the Serial Converter
Unit.
8A2 hex:
A failure occurred in
External Incre-
the external encoder.
mental Encoder
Sensor Error
8A3 hex:
A failure occurred in
External Abso-
the external absolute
lute Encoder
encoder.
Position Error
8A5 hex:
An overspeed error
was detected in the
External Encoder
external encoder.
Overspeed
8A6 hex:
An overheating error
was detected in the
External Encoder
external encoder.
Overheated
A10 hex:
The synchronization
timing (Sync0) for Eth-
EtherCAT DC
erCAT communica-
Synchronization
tions fluctuated.
Error
The EtherCAT com-
A11 hex:
munications state left
the Operational state
EtherCAT State
during motor opera-
Error
tion.
Noise caused an error
in EtherCAT commu-
nications.
The controller did not
A12 hex:
update the process
EtherCAT Output
data during the fixed
Data Synchroni-
period.
zation Error
The EtherCAT Com-
munications Cable or
connector wiring is
faulty.
The position unit is
outside of the setting
range.
A20 hex:
The speed unit is out-
side of the setting
Parameter Set-
range.
ting Error
The acceleration unit
is outside of the set-
ting range.
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.
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
Check the process data
that the process data is
specified by the control-
updated during the fixed
ler.
period.
Check the EtherCAT
Wire the connections cor-
Communications Cable
rectly.
and connector wiring.
Make sure it is within
the following range.
Correct the setting of
1/4,096 < Numerator
position user unit (2701
(2701 hex: 1)/Denomi-
hex).
nator (2701 hex: 2) <
65,536
Make sure it is within
the following range.
Correct the setting of
1/128 ≤ Numerator
velocity user unit (2702
(2702 hex: 1)/Denomi-
hex).
nator (2702 hex: 2) ≤
8,388,608
Make sure it is within
the following range.
Correct the setting of
1/128 ≤ Numerator
acceleration user unit
(2703 hex: 1)/Denomi-
(2703 hex).
nator (2703 hex: 2) ≤
262,144
15.2 Alarm Displays
15.2.2 Troubleshooting Alarms
Continued from previous page.
Correction Reference
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Continued on next page.
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