Alarm
code
Alarm
subcode
Name Description 　Check point and remedy reference
23 Hex
(Er5)
2000 Hex
EtherCAT
communica-
tions error
(1) An EtherCAT
communications ca-
ble is disconnected,
broken, short-circuit-
ed, or has a contact
failure in a daisy
chain configuration.
Connect the EtherCAT communications ca-
ble securely. If the cable is broken, replace it.
(2) The ring discon-
nection
• In a ring topology
configuration, the
ring disconnection
status occurred.
• In a ring topology
configuration, the
ring disconnection
status was fixed.
Refer to Method for Ring Disconnection
Maintenance and Inspection and perform in-
spection.
(3) Noise T
ake noise countermeasures so that the
noise does not affect the EtherCA
T commu-
nications cable.
(4) Failure of the
EtherCAT physical
layer of a Inverter
.
If this event occurs again after you performed
all corrections shown above, replace the In-
verter.
2015 Hex
(5) Failure of the
FSoE Safety Circuit.
If this event occurs again after you performed
all corrections shown in (3), replace the In-
verter.
9 Troubleshooting
9-6
M1 Series EtherCAT Type User’s Manual (I670)
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