EtherCAT
RUN
EtherCAT
ERR
L/A IN
L/A OUT
Description Remarks
- - Off
Physical
layer link
not estab-
lished
The physical layer link
is not established (the
Master Unit is not par-
ticipating in the net-
work).
• Check that communication ca-
bles are correctly connected to
connectors.
• Check that the wiring of commu-
nication cables is correct.
• Check that the Master Unit is
correctly operating. If using an
OMRON Master Unit, check the
Master Unit mode and the node
address-setting ID switches of
the inverter.
• If the Master Unit is made by an-
other manufacturer
, refer to the
instruction manual for that prod-
uct.
• When there are devices in the
surrounding area that generate
noise, adopt measures against
noise for the Master Unit, inver-
ter and communication cables.
Off Off Off
Power
supply ab-
normality
Power is not being
supplied normally to
the inverter.
• Check that the inverter power
supply is being supplied normally
(for example, the main power
supply of the inverter is wired
correctly, the power supply volt-
age has not dropped, and inver-
ter operation is normal).
• Remove the cause of the abnor-
mality and turn the inverter pow-
er supply OFF then back ON
again.
Of
f
On
-
Inverter
abnormal-
ity
A hardware alarm has
occurred.
• A slave initialization error occur-
red in the master.
• Replace the inverter.
F Communi-
cation
Unit hard-
ware error
A hardware alarm has
occurred.
Replace the inverter.
B
- B -
Sync
Manager
setting er-
ror
The Sync Manager
settings are in error
.
Correct the set values.
- D -
Process
data com-
munica-
tions time-
out
An error occurred in
PDO communication.
After checking the following items,
turn OFF the inverter power supply
and then restart the inverter.
• Is cable length appropriate (max.
100 m)?
• Is the cable disconnected or
loose?
• Is there a lot of noise?
9 Troubleshooting
9-27
M1 Series EtherCAT Type User’s Manual (I670)
9-1 Alarm Display and Remedies
9
9-1-4 Errors on a Communications Line
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