Omron GX-AD0471, User Manual, Page: 284 / 394

12 Troubleshooting and Maintenance
12 - 4 GX-series EtherCAT Slave Unit User’s Manual
 Errors of EtherCAT Network
[PWR]
indicator
[L/A IN]
[L/A OUT]
LED
[RUN]
indicator
[ERR]
indicator
Description Cause Actions
On On
− −
Link
established in
physical layer
Operation standby
status after
establishing link in
physical layer.
−
On Off
− −
Link not
established in
physical layer
A link in physical
layer has not been
established.
After checking the
following items, restart
the Slave Unit according
to the specification of
connected EtherCAT
Master Unit.
•
Is the
communications
cable wired correctly?
•
Are any cables
disconnected or loose
in the part that
connects to the
connector?
•
Is the cable length
appropriate?
•
Is the
communications
cable of the
recommended
specification?
The host master
has not been
started.
Check that EtherCAT
Master Unit is operating
correctly. If using an
OMRON EtherCAT
Master Unit, check the
EtherCAT Master Unit
mode and Slave Unit
node addresses. If
using EtherCAT Master
Unit from another
manufacturer, refer to
the user's manual for
that Master Unit.
A hardware failure
occurred.
If the problem is not
resolved even after the
measures described
above are taken, the
Slave Unit hardware
may be damaged.
Replace the applicable
Slave Unit.