Omron GRT1-ECT SmartSlice, Operation Manual

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6 GRT1-ECT Troubleshooting
GRT1-series EtherCAT Communication Unit - Operation Manual
6-
1
Tr
ou
bl
es
h
oo
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ith
LE
D i
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ca
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6
6-
1-3 Ether
CA
T Er
ror
s
Off
− −
Link not estab-
lished in physi-
cal layer A link in physical
layer has not been
established. After checking the following items,
restart the Slave according to the
specification of connected EtherCAT
Master Unit.
• Is the communication cable wired
correctly?
• Are any cables disconnected or
loose in the part that connects to
the connector?
• Is the cable length appropriate?
• Is the communication 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 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 hardware may
be damaged. Replace the applicable
Slave.
− −
DF Process data
communica-
tions timeout * A communication
error occurred. After checking the following items,
restart the Slave according to the
specification of connected EtherCAT
Master Unit.
[Item about communication cable]
• Is the communication cable wired
correctly?
• Are any cables disconnected or
loose in the part that connects to
the connector?
• Is the cable length appropriate?
• Is the communication cable of the
recommended specification?
[Item about power supply]
• Is the power supply voltage within
the specification range?
• Is the power supply capacity suffi-
cient?
Malfunction due to
noise
• If there are devices in the vicinity
that generate noise, take neces-
sary measures against the noise
to protect the EtherCAT Master
Unit and Slaves and the commu-
nication cable.
• The noise resistance deterio-
rates if a cable other than those
of the recommended specification
is used. Use the communication
cable of the recommended speci-
fication.
Link in physical
later OFF Communication
cable disconnec-
tion occurred. Check to see if the cable is discon-
nected or loose in the part that con-
nects to the connector.
[L/A IN]
[L/A OUT]
indicator
[RUN]
indicator
[ERR]
indicator
Description Cause Actions