Omron Sysmac E3X-ECT, Operation Manual

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8 Troubleshooting and Maintenance
8 - 6 E3X-ECT EtherCAT Sensor Communication Unit Instraction Manual
* Due to the EtherCAT specification, a communication timeout does not occur with those Slave Units that only
handle input data.

Synchronization Errors
On

SF

Safe-
Operational
state
It is commanded
from the EtherCAT
Master Unit to shift
to the
Safe-Operational
state.
If the trouble occurred
during operating the
system, check the state
of the connected
EtherCAT Master Unit.
On

B

Pre-
Operational
state
It is commanded
from the EtherCAT
Master Unit to shift
to the
Pre-Operational
state.
On

Off

Init state
It is commanded
from the EtherCAT
Master Unit to shift
to the Init state.
[PWR]
indicator
[L/A IN]
[L/A OUT]
LED
[RUN]
indicator
[ERR]
indicator
Description Actions
On

B B
Synchronization
frequency (Sync0
frequency) setting error
After checking the following items,
restart the Slave Unit according to
the specification of connected
EtherCAT Master Unit.
• Set the correct synchronization
frequency.
On

B SF
Synchronization error (at
synchronization start)
After checking the following items,
restart the Slave Unit according to
the specification of connected
EtherCAT Master Unit.
• Is the communications cable
wired correctly?
• Is the communications cable
exposed to excessive noise?
• Review set time of Sync Not
Received Timeout Setting
(synchronization error setting).
On

SF SF
Communications
synchronization error
After checking the following items,
restart the Slave Unit according to
the specification of connected
EtherCAT Master Unit.
• Is the communications cable
wired correctly?
• Is the communications cable
exposed to excessive noise?
• Review set time of
Communication Error Setting .
[PWR]
indicator
[L/A IN]
[L/A OUT]
LED
[RUN]
indicator
[ERR]
indicator
Description Cause Actions