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Appendices
A - 106
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
84B20000
EtherCAT Illegal
State Change Error
An undefined communica-
tions state change com-
mand was received.
• An undefined communica-
tions state change com-
mand was received
√
84B40000
Synchronization
Error
A signal for synchronous
communications could not
be detected.
• Noise
• Error of the EtherCAT slave
communications controller
√
84B50000
Sync Manager WDT
Error
PDO communications were
interrupted for the allow-
able period or longer.
• An EtherCAT communica-
tions cable is disconnected,
loose, or broken
• Host controller error
√
84B60000
ESC Initialization
Error
The initialization of Ether-
CAT slave communications
controller failed.
• Data was incorrectly over-
written in the non-volatile
memory of the EtherCAT
slave communications con-
troller
• Failure of the EtherCAT
slave communications con-
troller
√
84B70000
SII Verification Error
An error occurred in SII data
of the EtherCAT slave com-
munications controller.
• Data was incorrectly over-
written in the non-volatile
memory of the EtherCAT
slave communications con-
troller
• Failure of the EtherCAT
slave communications con-
troller or false detection
√
84B90000
Synchronization
Interruption Error
Synchronization interrup-
tion did not occur within the
specified period.
• Incorrect EtherCAT syn-
chronization setting of the
host controller
• Failure of the EtherCAT
slave communications con-
troller or false detection
√
84BA0000
Bootstrap State
Transition Request
Error
The state transition to
unsupported Bootstrap was
requested.
• The EtherCAT master
requested the transition of
unsupported Bootstrap
√
88100000
Communications
Synchronization
Error
Communications were not
established consecutively
because the synchroniza-
tion with the EtherCAT Mas-
ter could not be achieved.
• The power supply to the
host controller was inter-
rupted during PDO commu-
nications
• An EtherCAT communica-
tions cable is disconnected,
loose, broken, or has a con-
tact failure
• Noise
√
88120000
Safety Communica-
tions Timeout
A communications timeout
occurred in safety process
data communications with
the Safety CPU Unit.
• A setting is not correct. The
setting of the safety task
period of the Safety CPU
Unit is too short
• There is excessive noise
• The Safety CPU Unit or
safety slave entered a sta-
tus where it could not con-
tinue safety process data
communications
√
Event code
(hex)
Event name
Description
Assumed cause
Level
Refer-
ence
Min
Ob
s
In
fo
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